Use of Ozone-Depleting Substances; Removal of Essential-Use Designations, 17168-17192 [05-6599]
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17168
Federal Register / Vol. 70, No. 63 / Monday, April 4, 2005 / Rules and Regulations
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
Food and Drug Administration
21 CFR Part 2
[Docket No. 2003P–0029]
RIN 0910–AF18
Use of Ozone-Depleting Substances;
Removal of Essential-Use
Designations
AGENCY:
Food and Drug Administration,
HHS.
ACTION:
Final rule.
SUMMARY: The Food and Drug
Administration (FDA) is amending its
regulation on the use of ozone-depleting
substances (ODSs) in self-pressurized
containers to remove the essential-use
designations for albuterol used in oral
pressurized metered-dose inhalers
(MDIs). Under the Clean Air Act, FDA,
in consultation with the Environmental
Protection Agency (EPA), is required to
determine whether an FDA-regulated
product that releases an ODS is an
essential use of the ODS. Two albuterol
MDIs that do not use an ODS have been
marketed for more than 3 years. FDA
has determined that the two non-ODS
MDIs will be satisfactory alternatives to
albuterol MDIs containing ODSs and is
removing the essential-use designation
for albuterol MDIs as of December 31,
2008. Albuterol MDIs containing an
ODS cannot be marketed after this date.
DATES: This rule is effective December
31, 2008.
ADDRESSES: Received comments, a
transcript of, and material submitted for,
the Pulmonary-Allergy Advisory
Committee meeting held on June 10,
2004, the environmental assessment,
and the finding of no significant impact
may be seen in the Division of Dockets
Management, 5630 Fishers Lane, rm.
1061, Rockville, MD 20852, between 9
a.m. and 4 p.m., Monday through
Friday.
FOR FURTHER INFORMATION CONTACT:
Wayne H. Mitchell, Center for Drug
Evaluation and Research (HFD–7), Food
and Drug Administration, 5600 Fishers
Lane, Rockville, MD 20857,301–594–
2041.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Introduction and Highlights of the
Rule
II. Background
A. Albuterol
B. CFCs
C. Regulation of ODSs
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1. The 1978 Rules
2. The Montreal Protocol
3. The 1990 Amendments to the Clean
Air Act
4. EPA’s Implementing Regulations
5. FDA’s 2002 Regulation
III. Comments on the 2004 Proposed
Rule
A. General Comments
B. The Same Active Moiety with the
Same Route of Administration, for
the Same Indication, and With
Approximately the Same Level of
Convenience of Use
1. The Same Active Moiety with the
Same Route of Administration, for
the Same Indication
2. Approximately the Same Level of
Convenience of Use
C. Supplies and Production Capacity
for the Non-ODS Products Will
Exist at Levels Sufficient to Meet
Patient Need
D. Adequate U.S. Postmarketing Use
Data is Available for the Non-ODS
Products
E. Patients Are Adequately Served by
the Non-ODS Products
F. Effective Date
G. CFCs and the Environment
H. Comments on the Analysis of
Impacts
I. Other Comments
IV. Environmental Impact
V. Analysis of Impacts
A. Introduction
B. Need for Regulation and the
Objective of this Rule
C. Background
1. CFCs and Stratospheric Ozone
2. The Montreal Protocol
3. Benefits of the Montreal Protocol
4. Characteristics of COPD
5. Characteristics of Asthma
6. Current U.S. Albuterol MDI Market
D. Benefits and Costs of the Final Rule
1. Baseline Conditions
2. Benefits of the Final Rule
3. Costs of the Final Rule
4. Effects on Medicare and Medicaid
E. Alternative Phaseout Dates
F. Sensitivity Analyses
G. Small Business Impact
1. Affected Sector and Nature of
Impacts
2. Outreach
H. Conclusion
VI. The Paperwork Reduction Act of
1995
VII. Federalism
VIII. References
I. Introduction and Highlights of the
Rule
We published a proposed rule in the
Federal Register of June 16, 2004 (69 FR
33602) (the 2004 proposed rule),
proposing to remove the essential-use
designation for albuterol MDIs.
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Albuterol MDIs containing
chlorofluorocarbons (CFCs) or other
ODSs cannot be marketed without an
essential-use designation. We have
determined that the following four
criteria for removing an essential use
have been met or will be met by the
effective date of the final rule:
• More than one non-ODS product
with the same active moiety is marketed
with the same route of administration,
for the same indication, and with
approximately the same level of
convenience of use as the ODS product
containing that active moiety;
• Supplies and production capacity
for the non-ODS products will exist at
levels sufficient to meet patient need;
• Adequate U.S. postmarketing use
data is available for the non-ODS
products; and
• Patients who medically required the
ODS product will be adequately served
by the non-ODS products containing
that active moiety and other available
products.
We have also determined that the
appropriate effective date for the
removal of the essential-use designation
for albuterol MDIs is December 31,
2008.
We will discuss our determinations
on the criteria and the effective date in
section V of this document ‘‘Comments
on the 2004 Proposed Rule.’’
II. Background
A. Albuterol
Albuterol is a relatively selective
beta2–adrenergic agonist used in the
treatment of bronchospasm associated
with asthma and chronic obstructive
pulmonary disease (COPD). Albuterol
has the molecular formula C13H21NO3.
Albuterol is the name established for the
drug by the U.S. Pharmacopeia and the
U.S. Adopted Names Council. FDA uses
the name albuterol, and it is the name
commonly used in the United States. In
most of the rest of the world, the drug
is called salbutamol, which is the
International Nonproprietary Name for
the drug (the name recommended by the
World Health Organization). Albuterol
is widely used in its sulfate salt form,
which has the molecular formula
(C13H21NO3)2H2SO4. We will use
‘‘albuterol’’ to refer to both albuterol
base and albuterol sulfate, unless
otherwise indicated.
Albuterol is available in many dosage
forms for the treatment of asthma and
COPD. Syrups and tablets may be taken
by mouth to be absorbed into the blood
through the digestive tract. Albuterol
drug products are marketed in various
forms for inhalational use. Albuterol is
available in inhalation solutions for use
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in nebulizers, and was previously
marketed in the United States in a
compact dry-powder inhaler. Most
important for purposes of this
document, albuterol is marketed in
MDIs, which are small, pressurized
aerosol devices that deliver a measured
dose of an aerosolized drug into a
patient’s mouth for inhalation into the
lungs.
Albuterol MDIs were first approved
for use in the United States in 1981,
when the new drug applications (NDAs)
for VENTOLIN (NDA 18–473) and
PROVENTIL (NDA 17–559) albuterol
MDIs were approved by FDA. The first
generic albuterol MDI was approved in
1995. Albuterol MDIs have historically
used the CFCs trichlorofluoromethane
(CFC–11) and dichlorodifluoromethane
(CFC–12) as propellants.
Albuterol MDIs are among the most
widely used drug products for the
treatment of asthma and COPD. Because
of albuterol’s relatively rapid onset of
action, albuterol MDIs are frequently
used as ‘‘rescue’’ inhalers for treatment
of bronchospasm during acute episodes.
Albuterol MDIs can be considered
lifesaving for some patients at certain
times; they are very important for
controlling symptoms in many more
patients who suffer from asthma or
COPD. We recognize and take very
seriously our obligation to examine with
particular care any action that could
affect the availability of these important
drugs.
B. CFCs
CFCs are organic compounds that
contain carbon, chlorine, and fluorine
atoms. CFCs were first used
commercially in the early 1930s as a
replacement for hazardous materials
then used in refrigeration, such as sulfur
dioxide and ammonia. Subsequently,
CFCs were found to have a large number
of uses, including as solvents and as
propellants in self-pressurized aerosol
products, such as MDIs.
CFCs are very stable in the
troposphere, the lowest part of the
atmosphere. They move to the
stratosphere, a region that begins about
10 to 16 kilometers (km) (6 to 10 miles)
above Earth’s surface and extends up to
about 50 km (31 miles) altitude. Within
the stratosphere, there is a zone about
15 to 40 km (10 to 25 miles) above the
Earth’s surface in which ozone is
relatively highly concentrated. This
zone in the stratosphere is generally
called the ozone layer. Once in the
stratosphere, CFCs are gradually broken
down by strong ultraviolet light, where
they release chlorine atoms that then
deplete stratospheric ozone. Depletion
of stratospheric ozone by CFCs and
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other ODSs allows more ultraviolet-B
(UV–B) radiation to reach the Earth’s
surface, where it increases skin cancers
and cataracts, and damages some marine
organisms, plants, and plastics.
C. Regulation of ODSs
The link between CFCs and the
depletion of stratospheric ozone was
discovered in the mid-1970s. Since
1978, the U.S. Government has pursued
a vigorous and consistent policy,
through the enactment of laws and
regulations, of limiting the production,
use, and importation of ODSs, including
CFCs.
1. The 1978 Rules
In the Federal Register of March 17,
1978 (43 FR 11301 at 11318), FDA and
EPA published rules banning, with a
few exceptions, the use of CFCs as
propellants in aerosol containers. These
rules were issued under authority of the
Federal Food, Drug, and Cosmetic Act
(the act) (21 U.S.C. 321 et seq.) and the
Toxic Substances Control Act (15 U.S.C.
2601 et seq.), respectively. FDA’s rule
(the 1978 rule) was codified as § 2.125
(21 CFR 2.125). The rules issued by FDA
and EPA had been preceded by rules
issued by FDA and the Consumer
Product Safety Commission requiring
products that contain CFC propellants
to bear warning statements on their
labeling (42 FR 22018, April 29, 1977;
42 FR 42780, August 24, 1977).
The 1978 rule prohibited the use of
CFCs as propellants in self-pressurized
containers in any food, drug, medical
device, or cosmetic. As originally
published, the rule listed five essential
uses that were exempt from the ban. The
third listed essential use was for
‘‘[m]etered-dose adrenergic
bronchodilator human drugs for oral
inhalation.’’ This language describes
albuterol MDIs, so the list of essential
uses did not have to be amended in
1981 when VENTOLIN and PROVENTIL
albuterol MDIs were approved by FDA.
The 1978 rule provided criteria for
adding new essential uses, and several
uses were added to the list, the last one
in 1996. The 1978 rule did not provide
any mechanism for removing essential
uses from the list as alternative products
were developed or CFC-containing
products were removed from the
market. The absence of a removal
procedure came to be viewed as a
deficiency in the 1978 rule, and was
addressed in a later rulemaking,
discussed in section II.C.5 of this
document.
2. The Montreal Protocol
On January 1, 1989, the United States
became a party to the Montreal Protocol
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on Substances that Deplete the Ozone
Layer (Montreal Protocol) (September
16, 1987, 26 I.L.M. 1541 (1987)),
available at https://www.unep.org/ozone/
pdfs/Montreal-Protocol2000.pdf.1 The
United States played a leading role in
the negotiations of the Montreal
Protocol, believing that internationally
coordinated control of ozone-depleting
substances would best protect both the
U.S. and global public health and the
environment from potential adverse
effects of depletion of stratospheric
ozone. Currently, there are 188 parties
to this treaty.2 When it joined the treaty,
the United States committed to reducing
production and consumption of certain
CFCs to 50 percent of 1986 levels by
1998 (Article 2(4) of the Montreal
Protocol). It also agreed to accept an
‘‘adjustment’’ procedure, whereby,
following assessment of the existing
control measures, the Parties could
adjust the scope, amount, and timing of
those control measures for substances
already subject to the Montreal Protocol.
As the evidence regarding the impact of
ODSs on the ozone layer became
stronger, the Parties used this
adjustment procedure to accelerate the
phaseout of ODSs. At the fourth meeting
of the Parties to the Montreal Protocol,
held at Copenhagen in November 1992,
the Parties adjusted Article 2 of the
Montreal Protocol to eliminate the
production and importation of CFCs by
Parties that are developed countries by
January 1, 1996 (Decision IV/2).3 The
adjustment also indicated that it would
apply ‘‘save to the extent that the Parties
decide to permit the level of production
or consumption that is necessary to
satisfy uses agreed by them to be
essential’’ (Article 2A(4)). Under the
treaty’s rules of procedure, the Parties
may make such an essential-use
decision by a two-thirds majority vote,
1 FDA has verified all Web site addresses cited in
this document, but FDA is not responsible for any
subsequent changes to the Web sites after this
document has published in the Federal Register.
2 The summary descriptions of the Montreal
Protocol and decisions of parties to the Montreal
Protocol contained in this document are presented
here to help you understand the background of the
action we are taking. These descriptions are not
intended to be formal statements of policy regarding
the Montreal Protocol. Decisions by the parties to
the Montreal Protocol are cited in this document in
the conventional format of ‘‘Decision IV/2,’’ which
refers to the second decision recorded in the Report
of the Fourth Meeting of the parties to the Montreal
Protocol on Substances That Deplete the Ozone
Layer. Reports of meetings of the parties to the
Montreal Protocol may be found on the United
Nations Environment Programme’s Web site at
https://www.unep.org/ozone/mop/mopreports.shtml.
3 Production of CFCs in economically lessdeveloped countries is being phased out and is
scheduled to end by January 1, 2010. See Article
2a of the Montreal Protocol.
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although, to date, all such decisions
have been made by consensus.
To produce or import CFCs for an
essential use under the Montreal
Protocol, a Party must request and
obtain approval for an exemption at a
meeting of the Parties. One of the most
important essential uses of CFCs under
the Montreal Protocol is their use in
MDIs for the treatment of asthma and
COPD. The decision on whether the use
of CFCs in MDIs is ‘‘essential’’ for
purposes of the Montreal Protocol turns
on whether: ‘‘(1) It is necessary for the
health, safety, or is critical for the
functioning of society (encompassing
cultural and intellectual aspects) and (2)
there are no available technically and
economically feasible alternatives or
substitutes that are acceptable from the
standpoint of environment and health’’
(Decision IV/25). Each request and any
subsequent exemption is for only 1
year’s duration (Decision V/18). Since
1994 the United States and some other
Parties to the Montreal Protocol have
annually requested, and been granted,
essential-use exemptions for the
production or importation of CFCs for
their use in MDIs for the treatment of
asthma and COPD (see, among others,
Decisions VI/9 and VII/28). The
exemptions have been consistent with
the criteria established by the Parties,
which make the grant of an exemption
contingent on a finding that the use for
which the exemption is being requested
is essential for health, safety, or the
functioning of society, and that there are
no available technically and
economically feasible alternatives or
substitutes that are acceptable from the
standpoint of health or the environment
(Decision IV/25).
Phasing out the use of CFCs in MDIs
for the treatment of asthma and COPD
has been an issue of particular interest
to the Parties to the Montreal Protocol.
Several decisions of the Parties have
dealt with the transition to CFC-free
MDIs, including the following
decisions:
• Decision VIII/10 stated that the
Parties that are developed countries
would take various actions to promote
industry’s participation in a smooth and
efficient transition away from CFCbased MDIs (San Jose, Costa Rica, 1996).
• Decision IX/19 required the Parties
that are developed countries to present
an initial national or regional transition
strategy by January 31, 1999 (Montreal,
Canada, 1997).
• Decision XII/2 elaborated on the
content of national or regional transition
strategies required under Decision IX/19
and indicated that any MDI for the
treatment of asthma or COPD approved
for marketing after 2000 would not be
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an ‘‘essential use’’ unless it met the
criteria laid out by the Parties for
essential uses (Ouagadougou, Burkina
Faso, 2000).
• Decision XIV/5 requested that each
Party report annually the quantities of
CFC and non-CFC MDIs and dry-powder
inhalers sold or distributed within that
country and the approval and marketing
status of non-CFC MDIs and dry-powder
inhalers. Decision XIV/5 also noted
‘‘with concern the slow transition to
CFC-free metered-dose inhalers in some
Parties’’ (Rome, Italy, 2002).
• Decision XV/5 states that no
essential uses of CFCs will be
authorized for Parties that are developed
countries at the 17th meeting of the
Parties (in autumn 2005), or thereafter,
unless the Party requesting the
essential-use allocation has submitted
an action plan. Among other items, the
action plan should include a specific
date by which the Party plans to cease
requesting essential-use allocations of
CFCs for albuterol MDIs to be sold or
distributed in developed countries. The
action plan must be submitted before
the 25th meeting of the Open-Ended
Working Group4 in the summer of 2005
(Nairobi, Kenya, 2003).
In addition to fulfilling our
obligations under the Clean Air Act and
other provisions of the Montreal
Protocol, this rule is intended to
provide, for purposes of Decision XV/5,
the specific date after which the United
States will not request essential-use
allocations of CFCs for albuterol MDIs.
3. The 1990 Amendments to the Clean
Air Act
In 1990, Congress amended the Clean
Air Act to, among other things, better
protect stratospheric ozone (Public Law
101–549, November 15, 1990) (the 1990
amendments). The 1990 amendments
were drafted to complement, and be
consistent with, our obligations under
the Montreal Protocol (see section 614
of the Clean Air Act (42 U.S.C. 7671m)).
Section 614(b) of the Clean Air Act
provides that in the case of a conflict
between any provision of the Clean Air
Act and any provision of the Montreal
Protocol, the more stringent provision
will govern. Section 604 of the Clean
Air Act requires the phaseout of the
production of CFCs by 2000 (42 U.S.C.
4 The Open-Ended Working Group (OEWG) was
established in 1989 at the first meeting of the
Parties to the Montreal Protocol held in Helsinki.
The OEWG, among other duties, considers
proposals for amendments and adjustments to the
Montreal Protocol and prepares consolidated
reports based on the reports of various scientific,
technical, and economic panels. These proposals
and reports may subsequently be acted on by a
meeting of the Parties to the Montreal Protocol.
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7671c),5 while section 610 of the Clean
Air Act (42 U.S.C. 7671i) required EPA
to issue regulations banning the sale or
distribution in interstate commerce of
nonessential products containing CFCs.
Sections 604 and 610 provide
exceptions for ‘‘medical devices.’’
Section 601(8) (42 U.S.C. 7671(8)) of the
Clean Air Act defines ‘‘medical device’’
as
any device (as defined in the Federal Food,
Drug, and Cosmetic Act (21 U.S.C. 321)),
diagnostic product, drug (as defined in the
Federal Food, Drug, and Cosmetic Act), or
drug delivery system(A) if such device, product, drug, or drug
delivery system utilizes a class I or class II
substance for which no safe and effective
alternative has been developed, and where
necessary, approved by the Commissioner [of
Food and Drugs]; and
(B) if such device, product, drug, or drug
delivery system, has, after notice and
opportunity for public comment, been
approved and determined to be essential by
the Commissioner [of Food and Drugs] in
consultation with the Administrator [of
EPA].’’
4. EPA’s Implementing Regulations
EPA regulations implementing the
Montreal Protocol and the stratospheric
ozone protection provisions of the 1990
amendments are codified in part 82 of
title 40 of the Code of Federal
Regulations (40 CFR part 82). (See 40
CFR 82.1 for a statement of intent.) Like
the 1990 amendments, EPA’s
implementing regulations contain two
separate prohibitions, one on the
production and import of CFCs (subpart
A of 40 CFR part 82) and the other on
the sale or distribution of products
containing CFCs (40 CFR 82.66).
The prohibition on production and
import of CFCs contains an exception
for essential uses and, more specifically,
for essential MDIs. The definition of
essential MDI at 40 CFR 82.3 requires
that the MDI be intended for the
treatment of asthma or COPD, be
essential under the Montreal Protocol,
and if the MDI is for sale in the United
States, be approved by FDA and listed
as essential in FDA’s regulations at
§ 2.125.
The prohibition on the sale of
products containing CFCs includes a
specific prohibition on aerosol products
and other pressurized dispensers. The
aerosol product ban contains an
exception for medical devices listed in
§ 2.125(e). The term ‘‘medical device’’ is
used with the same meaning it was
given in the 1990 amendments and
5 In conformance with Decision IV/2, EPA issued
regulations accelerating the complete phaseout of
CFCs, with exceptions for essential uses, to January
1, 1996 (58 FR 65018, December 10, 1993).
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includes drugs as well as medical
devices.
5. FDA’s 2002 Regulation
In the 1990s, we decided that § 2.125
required revision to better reflect our
obligations under the Montreal Protocol,
the 1990 amendments, and EPA’s
regulations, and to encourage the
development of ozone-friendly
alternatives to medical products
containing CFCs. In particular, as
acceptable alternatives that did not
contain CFCs or other ODSs came on the
market, there was a need to provide a
mechanism for removing essential uses
from the list in § 2.125(e). In the Federal
Register of March 6, 1997 (62 FR
10242), we published an advance notice
of proposed rulemaking (the 1997
ANPRM) in which we outlined our
then-current thinking on the content of
an appropriate rule regarding ODSs in
products FDA regulates. We received
almost 10,000 comments on the 1997
ANPRM. In response to the comments,
we revised our approach and drafted a
proposed rule published in the Federal
Register of September 1, 1999 (64 FR
47719) (the 1999 proposed rule). We
received 22 comments on the 1999
proposed rule. After minor revisions in
response to these comments, we
published a final rule in the Federal
Register of July 24, 2002 (67 FR 48370)
(the 2002 final rule) (corrected in 67 FR
49396, July 30, 2002, and 67 FR 58678,
September 17, 2002).
Among other changes, the 2002 final
rule, in revised § 2.125(g)(3), set
standards that FDA would use for
determining whether the use of an ODS
in a medical product is no longer
essential. The 2002 final rule provided
that to remove an essential-use
designation, FDA must find that:
• At least one non-ODS product with
the same active moiety is marketed with
the same route of administration, for the
same indication, and with
approximately the same level of
convenience of use as the ODS product
containing that active moiety;
• Supplies and production capacity
for the non-ODS product(s) exist or will
exist at levels sufficient to meet patient
need;
• Adequate U.S. postmarketing use
data is available for the non-ODS
product(s); and
• Patients who medically required the
ODS product are adequately served by
the non-ODS product(s) containing that
active moiety and other available
products.
To remove the essential-use
designation of an active moiety
marketed in an ODS product
represented by one NDA, there must be
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at least one acceptable alternative, while
for an active moiety marketed in ODS
products and represented by two or
more NDAs, there must be at least two
acceptable alternatives.
Because there are multiple NDAs for
albuterol MDIs containing an ODS, the
rule requires that there must be at least
two acceptable alternatives available for
us to remove the essential-use
designation for albuterol. We have
determined that there are two
acceptable alternatives for albuterol
MDIs containing an ODS.
FDA approved the NDA for
PROVENTIL HFA, albuterol sulfate
MDI, on August 15, 1996 (NDA 20–503),
and the product was introduced into the
U.S. market later that year. PROVENTIL
HFA is manufactured by 3M Co. (3M)
and marketed by Schering-Plough Corp.
(Schering). VENTOLIN HFA, albuterol
sulfate MDI, was approved on April 19,
2001 (NDA 20–983), and it was
introduced into the U.S. market in
February 2002. VENTOLIN HFA is
manufactured and marketed by
GlaxoSmithKline (GSK). Both of these
products use the hydrofluoroalkane
HFA–134a as a replacement for ODSs.
HFA–134a does not affect stratospheric
ozone. We will use the phrase
‘‘albuterol HFA MDIs’’ to refer to both
of these products in this document.
IVAX Corp. (IVAX) has recently begun
marketing an albuterol HFA MDI, but
the short period of time that the IVAX
MDI has been on the market prevents us
from considering the drug an alternative
to albuterol CFC MDIs for purposes of
this rulemaking (see our response to
comment 14 of this document).
Albuterol HFA MDIs are the subject of
patents, listed in our publication
Approved Drug Products with
Therapeutic Equivalence Evaluations
(the Orange Book), which will,
presumably, block the marketing of
generic albuterol HFA MDIs until they
expire. See our response to comment 36
of this document for a discussion of the
patent issues that were raised in this
rulemaking.
There is a separate essential-use
designation for metered-dose
ipratropium bromide and albuterol
sulfate, in combination, administered by
oral inhalation for human use,
§ 2.125(e)(2)(viii). This essential use was
added to the list of essential uses
(§ 2.125(e)), even though albuterol and
ipratropium bromide were already
separately included in the list of
essential uses. (See 60 FR 53725,
October 17, 1995, and 61 FR 15699,
April 9, 1996.) The only drug product
marketed under the essential-use
designation for metered-dose
ipratropium bromide and albuterol
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17171
sulfate, in combination, is Boehringer
Ingelheim Phamaceuticals’ product
COMBIVENT. Because COMBIVENT
has two active ingredients, it is not
subject to Decision XV/5, which
concerns MDIs with albuterol as the sole
active ingredient. This rule will not
affect the essential-use status of
COMBIVENT.
III. Comments on the 2004 Proposed
Rule
On June 10, 2004, we held a meeting
of the Pulmonary-Allergy Drug Advisory
Committee (the PADAC meeting) to
discuss the issues involved in removing
the essential-use designation for
albuterol MDIs (see the Federal
Registers of May 11, 2004 (69 FR
26169), and June 2, 2004 (69 FR 31126)).
Presentations were made by 13 speakers
representing patient advocacy groups,
medical professional organizations, an
industry organization, an environmental
advocacy group, an economics
consulting firm, GSK, Schering,
Honeywell Chemicals (Honeywell), and
IVAX. We address the comments made
in written material submitted to the
committee and oral comments made
during the open public hearing and
committee discussion portions of the
meeting in addition to the written and
electronic comments submitted to the
docket in response to the 2004 proposed
rule.6
We received over 75 written and
electronic comments in response to the
2004 proposed rule. They were
submitted by patients, health care
providers, patient advocacy groups,
professional groups, manufacturers, a
law firm, an economics consulting firm,
and industry organizations. Most of the
parties who spoke at the PADAC
meeting also submitted written
comments.
A. General Comments
(Comment 1) We received several
comments that expressed general
approval for the 2004 proposed rule.
6 Fran Du Melle, Executive Vice President of the
American Lung Association, submitted a citizen
petition on behalf of the U.S. Stakeholders Group
on MDI Transition on January 29, 2003 (Docket No.
2003P–0029/CP1) (Stakeholders’ petition). The
Stakeholders’ petition requested that we initiate
rulemaking to remove the essential-use designation
of albuterol MDIs. Several comments were
submitted in response to the petition. All of the
opinions and information in those comments, with
one exception (see comment 39 of this document),
were also contained in testimony at the PADAC
meeting or in comments on the proposed rule. In
nearly every case, parties submitting comments on
the petition also testified at the PADAC meeting,
submitted comments on the proposed rule, or both.
Accordingly, with the exception of comment 39 of
this document, we will not be directly responding
in this document to the Stakeholders’ petition or
the comments on the petition.
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We appreciate the effort that the
people who submitted these comments,
and all other comments, made in
expressing their opinions on this
important rulemaking.
(Comment 2) We received several
comments that expressed a general
opposition to the phaseout of albuterol
CFC MDIs, without giving any reasons
for the opposition.
We cannot address these general
comments. Comments that gave specific
reasons why the person submitting the
comment opposes the elimination of the
essential-use designation for albuterol
CFC MDIs will be discussed in the
appropriate sections of this document.
(Comment 3) A few comments seemed
to be based on a perception that this
rulemaking would remove all albuterol
MDIs from the market.
The perception is inaccurate. This
rulemaking is based on the fact that
there will be at least two different
albuterol MDIs that are acceptable
alternatives under § 2.125(g) available
after the rule goes into effect.
(Comment 4) Several comments were
made advocating an expeditious
phaseout of albuterol CFC MDIs. A few
comments recommended we proceed
slowly and cautiously.
We believe this final rule provides for
the phaseout of albuterol CFC MDIs
with a speed that is consistent with our
duty to protect the public health and
our legal obligations.
(Comment 5) One comment requested
we publish this rule by December 31,
2004.
We did not publish this rule by
December 31, 2004, because it involves
complicated and sensitive issues that
required extensive consultation and
deliberation within FDA and the
Department of Health and Human
Services (HHS), and with EPA and other
Federal agencies. We have issued this
rule in the most expeditious manner,
consistent with the complexities and
sensitivity of the issues involved.
(Comment 6) One comment asked that
we consider in this rulemaking the
availability of CFC drug products that
do not have a non-CFC substitute, the
availability of generic albuterol MDIs,
and the impact that higher priced drugs
may have on the public health.
As we discuss in several places in the
2004 proposed rule and this document,
issues of price and generic competition
were major concerns to us. However,
because this rulemaking deals
exclusively with the essential-use
designation for albuterol MDIs, we did
not examine the availability of non-CFC
substitutes for drug products other than
albuterol CFC MDIs.
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(Comment 7) One comment stated we
did not adequately communicate to the
medical community the details of our
policy regarding CFC MDIs. The
comment expressed concern that we did
not give a timeframe for the phaseout of
albuterol CFC MDIs.
We believe we have done a good job
of keeping the public and the medical
community informed on our policy
regarding the elimination of essentialuse designations for medical products.
We first discussed our general policy on
the issue in the 1997 ANPRM. We
received nearly 10,000 comments in
response to the 1997 ANPRM, which
demonstrates that this document
received wide publicity. We received
additional comments in response to the
1999 proposed rule, which proposed
changes in § 2.125 to provide a
mechanism for eliminating essential
uses. A citizen petition was submitted
on behalf of the U.S. Stakeholders
Group on MDI Transition (stakeholders
group) on January 29, 2003 (Docket No.
2003P–0029/CP1), essentially requesting
that we initiate this rulemaking. This
stakeholders group consists of both
patient advocacy and professional
organizations. These groups were aware
of our policies. FDA staff has spoken
several times before professional
medical organizations, patient advocacy
groups, and the National Asthma
Education and Prevention Program
Coordinating Committee of the National
Institutes of Health. FDA staff have also
answered countless telephone calls and
correspondence on the subject. We have
provided press releases and
opportunities for interviews to the
general, trade, and professional media.
We believe we have done what can be
reasonably expected to inform the
public and the medical profession.
However, we were not able to provide
a timeframe for eliminating the
essential-use designation for albuterol
MDIs. We specifically solicited
comments on an appropriate effective
date for the elimination of the essentialuse designation for albuterol MDIs. The
effective date could not be established
until we had finished our evaluation of
the comments submitted in response to
the 2004 proposed rule, prepared a draft
of this document, and consulted with
EPA and other Federal agencies.
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B. The Same Active Moiety with the
Same Route of Administration, for the
Same Indication, and With
Approximately the Same Level of
Convenience of Use
1. The Same Active Moiety with the
Same Route of Administration, for the
Same Indication
We did not receive any comments
disagreeing with our tentative
conclusions stated in the 2004 proposed
rule, or addressing the conclusions in
any substantive way, that albuterol HFA
MDIs have the same active moiety with
the same route of administration for the
same indications as albuterol CFC MDIs.
We therefore finalize our tentative
conclusion that albuterol HFA MDIs
have the same active moiety with the
same route of administration for the
same indications as albuterol CFC MDIs.
2. Approximately the Same Level of
Convenience of Use
(Comment 8) One comment asserted
that the VENTOLIN HFA MDIs were not
an adequate alternative for albuterol
CFC MDIs because the VENTOLIN HFA
MDI requires more force to operate.
Although we do have some data on
the force needed to operate the various
albuterol MDIs, because that
information comes from different
sources using different measuring
techniques and apparatus, we are not
able to meaningfully compare the
amounts of force needed to operate
albuterol HFA MDIs compared to the
force needed for albuterol CFC MDIs.
However, of the approximately 20
comments we received that indicated
that the person submitting the comment
had some experience using albuterol
HFA MDIs, only one complained that
the albuterol HFA MDIs required
excessive effort to operate. None of the
thirteen comments from health care
providers indicated that their patients
had problems operating the albuterol
HFA MDIs. The PROVENTIL HFA MDI
is somewhat shorter and wider than the
VENTOLIN HFA MDI. Patients who find
it difficult to apply adequate pressure to
the VENTOLIN HFA MDI may wish to
try the shorter PROVENTIL HFA MDI or
other albuterol HFA MDIs that may
come onto the market.
(Comment 9) One comment said that
the VENTOLIN HFA MDIs were not an
adequate alternative for albuterol CFC
MDIs because the VENTOLIN HFA MDI
needs to be primed before use.
The approved labeling for both
PROVENTIL HFA and VENTOLIN HFA
recommend that patients prime the MDI
before using it for the first time and in
cases where the MDI has not been used
for more than 2 weeks by releasing four
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test sprays into the air, away from the
face. The approved labeling for
PROVENTIL CFC MDIs and Warwick
brand albuterol CFC MDIs contain a
similar instruction about priming, but
recommend priming if the MDI has not
been used for 4 days, as opposed to the
more convenient 2 weeks for the
albuterol HFA MDIs. The approved
labeling for VENTOLIN CFC MDIs, and
for the generic albuterol CFC MDIs
which refer to the VENTOLIN CFC MDI,
contain an essentially identical
recommendation, but refer to the
operation as ‘‘test sprays’’ rather than
priming. These test sprays are
recommended if these albuterol CFC
MDIs have not been used for more than
4 weeks. Therefore, priming is
recommended for all of the albuterol
CFC MDI products affected by this
rulemaking. The only difference
between albuterol CFC MDIs and
albuterol HFA MDIs that would
inconvenience patients is the shorter
period of non-use before priming is
recommended for the albuterol HFA
MDIs compared to VENTOLIN CFC
MDIs and the generic albuterol CFC
MDIs which refer to the VENTOLIN CFC
MDI. We consider this difference to be
at most a minor inconvenience, and not
a ‘‘significant [variation] in convenience
that materially impede[s] patient
compliance.’’ (See the 2002 final rule
(67 FR 48370 at 48377).) When we
compare the albuterol HFA MDIs to
PROVENTIL CFC MDIs and Warwick
brand albuterol CFC MDIs, the albuterol
HFA MDIs are actually more
convenient, because of the longer period
of non-use before priming is
recommended.
(Comment 10) One comment stated
that the VENTOLIN HFA MDIs were not
an adequate alternative for albuterol
CFC MDIs because the float test cannot
be used to determine whether the
VENTOLIN HFA MDI is empty.
The float test is a widely described,
but inaccurate, method of ascertaining
whether an MDI is empty by seeing if it
floats. In addition to being an inaccurate
method to ascertain whether an MDI
still contains usable quantities of the
drug, the float test can damage the MDI
(See Refs. 1 and 2). The float test is not
recommended in the approved labeling
of any albuterol CFC MDI. The only
accurate way to determine whether an
MDI still contains usable quantities of
the drug is to keep track of the number
of actuations. This is true for both
albuterol CFC and HFA MDIs. Therefore
we cannot view the inability to perform
the float test on the albuterol HFA MDIs
as a ‘‘significant [variation] in
convenience that materially impede
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patient compliance.’’ (See the 2002 final
rule (67 FR 48370 at 48377).)
We find that albuterol HFA MDIs
have approximately the same level of
convenience of use as albuterol CFC
MDIs.
C. Supplies and Production Capacity for
the Non-ODS Products Will Exist at
Levels Sufficient to Meet Patient Need
(Comment 11) At the PADAC meeting
a representative of GSK stated GSK was
currently producing approximately
300,000 albuterol HFA MDIs annually at
their Zebulon, NC, plant. She further
stated the current installed capacity at
Zebulon is 15 million albuterol HFA
MDIs annually, but that it would take
GSK 6 to 12 months after a final
decision on an effective date in this
rulemaking to hire staff and reconfigure
existing space to take full advantage of
the installed capacity. She stated it
would take GSK 12 to 18 months after
a final decision on an effective date in
this rulemaking to install additional
manufacturing equipment and secure
required component supplies to enable
GSK to manufacture 30 to 33 million
albuterol MDIs.
A representative of Schering stated at
the PADAC meeting that 3M would be
able to manufacture enough albuterol
MDIs to meet Schering’s ‘‘share of the
expected demand’’ for approximately 50
million albuterol HFA MDIs (transcript
of PADAC meeting at p. 130).
Answering a question from a committee
member, the Schering representative
clarified that his statement regarding
Schering’s and 3M’s share of the
manufacturing capacity was consistent
with the earlier statements made on
behalf of GSK.
In a subsequent written comment
(2003P–0029/C20), GSK revised its
production estimates and stated they
would begin increasing production
before the publication of this rule, and
that they currently anticipated having
the capacity to produce 30 million
albuterol HFA MDIs annually by
December 31, 2005. GSK further said
they will also begin building up their
inventory at least 3 months before the
effective date of this rule. GSK also said
they would reevaluate their expansion
plans if the effective date of this rule
were substantially beyond December 31,
2005.
Schering also revised their projections
on increasing production capacity in a
written comment submitted after the
PADAC meeting (2003P–0029/C31).
Schering said they will have adequate
production available to meet demand
for albuterol HFA MDIs by December
2005. Schering also said they would
reevaluate their expansion plans if the
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17173
effective date of this rule were
substantially beyond December 2005.
3M, which produces the albuterol HFA
MDIs Schering markets, confirmed
Schering’s comment by stating that they
will have the capacity to manufacture
30 million albuterol HFA MDIs annually
by December 31, 2005.
These projections were major
considerations we took into account in
establishing the effective date for this
rule. We discuss our rationale for setting
a December 31, 2008, effective date in
our response to comment 32 of this
document.
(Comment 12) A comment from a
manufacturer of HFA–134a stated there
would be more than adequate supplies
of HFA–134a for albuterol MDIs if the
essential-use designation is removed.
We appreciate this confirmation that
adequate supplies of HFA–134a will
exist to meet the increased demand for
the propellant.
(Comment 13) A few comments from
patients expressed concerns that
shortages of albuterol MDIs may result
from the elimination of the essential-use
status of albuterol MDIs. Comments
from a trade organization and a chain
drug store expressed concerns about
whether production capacity for
albuterol HFA MDIs would be in place
as quickly as had been discussed in the
2004 proposed rule.
The issue of adequate supply and
production capacity has been key to this
rulemaking. We regard the statements
by GSK, Schering, and 3M that they will
have adequate production in place as
the best evidence on the availability of
production capacity. When we chose
December 31, 2008, as the effective date
of this rule, we did so with every
reasonable expectation that adequate
supplies and production capacity would
be in place by December 31, 2008.
(Comment 14) A representative of
IVAX stated at the PADAC meeting that
IVAX had submitted an NDA for an
albuterol HFA MDI in January 2003, and
received an approvable letter7 from FDA
for the NDA on November 28, 2003. He
also said IVAX had submitted a separate
NDA for an albuterol HFA breathactuated inhaler in August 2003. He
said he expected the products to be on
the market in the near future. He stated
that IVAX would soon have the capacity
to manufacture 50 to 60 million HFA
MDIs a year at IVAX’s Waterford,
7 An ‘‘approvable letter’’ is a written
communication to an applicant from FDA stating
that we will approve the NDA if specific additional
information or material is submitted or specific
conditions are met. An approvable letter does not
constitute approval of any part of an NDA and does
not permit marketing of the drug that is the subject
of the NDA (21 CFR 314.3).
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Ireland, plant, although he did not
specify what proportion of that capacity
would be allocated to albuterol HFA
products or to products for the U.S.
market.
We did not consider this information
in making our decision on the essentialuse designation for albuterol MDIs. The
IVAX albuterol HFA MDI was approved
on October 29, 2004, and introduced
into the market in December 2004.
Because this product has been on the
market for such a short time, the
available U.S. postmarketing use data is
inadequate for purposes of
§ 2.125(g)(3)(iii). IVAX’s albuterol HFA
breath-actuated inhaler has not been
approved or marketed. Section
2.125(g)(4)(i) requires alternative
products to be marketed. In addition,
because the product has not been
marketed, there can be no U.S.
postmarketing use data available to
allow us to evaluate whether the breathactuated inhaler will be an acceptable
alternative to albuterol CFC MDIs.
(Comment 15) One comment asserted
the entire supply of albuterol HFA MDIs
for the United States would be produced
at one GSK facility and one 3M facility.
The comment concluded that adequate
supplies of albuterol HFA MDIs were
insufficient because it was unclear
whether one facility could supply the
entire market if the other facility were
forced to close.
We appreciate the concerns expressed
in this comment; however, the factual
premise for the comment is misstated.
We believe that a switch to albuterol
HFA MDIs will improve the security of
the U.S. supply of albuterol MDIs.
Immediately after the phaseout of
albuterol CFC MDIs, we will have one
GSK facility and two 3M/Schering
facilities supplying the U.S. market for
albuterol MDIs. This compares favorably
to the current situation with albuterol
MDIs, where one Schering facility and
one IVAX facility supply 95 percent of
the U.S. market for albuterol CFC MDIs
(comment from NERA dated August 13,
2004 (2003P–0029/C25)), exhibit 4; and
corrected comment from GSK, dated
August 25, 2004 (2003P–0029/CR1).
IVAX’s recently approved albuterol
HFA MDI, although not considered an
alternative product for purposes of this
rule (see our response to comment 14 of
this document), gives additional
assurance that there will be adequate
supplies of albuterol HFA MDIs if there
is an interruption of production at one
of the GSK or 3M approved
manufacturing sites. We also would like
to point out that GSK and 3M have
overseas production facilities that are
not listed as authorized manufacturing
facilities in the approved NDAs for
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PROVENTIL HFA and Ventolin HFA.
These facilities may be able to export
albuterol HFA MDIs to the United States
in an emergency shortage situation.
In our rulemaking establishing the
criteria for eliminating an essential-use
designation, we considered requiring
multiple production sites to ensure a
secure supply of non-ODS drug
products (see the 1997 ANPRM (69 FR
10242 at 10245), the 1999 proposed rule
(64 FR 47719 at 47723), and the 2002
final rule (67 FR 48370 at 48377)). We
chose not to require multiple
production sites for the alternative
products as a criterion for eliminating
the essential-use designation. In any
case, albuterol HFA MDIs can be
manufactured at three or more sites,
which will provide a high degree of
security for continued supplies of
albuterol HFA MDIs, compared to the
supply of other drugs intended for
treatment of serious or life-threatening
diseases, many of which are only
manufactured in one facility.
(Comment 16) One comment
recommended we delay the effective
date for this rule until albuterol MDIs
from IVAX and Sepracor Inc. (Sepracor)
are on the market to ensure adequate
supplies and provide price competition.
Another comment recommended we
establish an earlier effective date if the
albuterol MDIs from IVAX and Sepracor
Inc., are approved.
The IVAX albuterol HFA MDI is
already approved (see our response to
comment 14 of this document).
Sepracor’s levalbuterol tartrate8 MDI
XOPENEX HFA was approved on March
11, 2005, but has not been marketed by
the time this document was published.
Because XOPENEX HFA has not been
marketed, we cannot consider it an
alternative to albuterol CFC MDIs (see
our response to comment 14 of this
document). While we believe that the
presence of additional suppliers of nonODS albuterol products would be
desirable for the reasons given in the
comment, we do not believe they are
necessary for the purposes of this
rulemaking. Based on statements from
GSK, Schering, and 3M, we expect that
adequate production capacity for
alternative products evaluated under
§ 2.125(g) will exist by the effective date
of this rule. As we discuss in our
responses to comment 18 and in section
8 Levalbuterol tartrate is the tartrate salt of
levalbuterol, the single R-enantiomer of albuterol,
which is the active ingredient in both CFC and HFA
MDIs as a racemic mixture of the two stereoisomers
(R and S) at a 1:1 ratio. We have not determined
whether we will, in the future, consider products
whose active ingredient is a stereoisomer to be
alternatives to drug products whose active
ingredient is the corresponding racemic mixture.
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V of this document, we also believe that
anticipated prices for albuterol HFA
MDIs will not prevent patients from
being adequately served by the albuterol
HFA MDIs, even without the downward
price pressure of additional
competition.
We find that supplies and production
capacity for albuterol HFA MDIs will
exist at levels sufficient to meet patient
needs by December 31, 2008.
D. Adequate U.S. Postmarketing Use
Data is Available for the Non-ODS
Products
We did not receive any substantive
comments about whether adequate U.S.
postmarketing use data is available for
the albuterol HFA MDIs. We therefore
finalize our tentative conclusion that
adequate U.S. postmarketing use data is
available for PROVENTIL HFA and
VENTOLIN HFA, the albuterol HFA
MDIs that we considered as alternatives
in this rulemaking.
E. Patients Are Adequately Served by
the Non-ODS Products
(Comment 17) A representative of
GSK speaking at the PADAC meeting
described GSK’s Bridges to Access
program. Bridges to Access provides
GSK drugs at very low cost to lowerincome individuals and families. She
also mentioned GSK’s Orange Card
Program and the Together Rx program
in which GSK participates. Both of these
programs allow eligible Medicare
patients to purchase drugs at
significantly reduced prices. She added
that GSK intended to annually
distribute 2 million VENTOLIN HFA
MDIs to physicians as samples. She also
said GSK expected that many
physicians would primarily provide
these samples to their lower-income
patients.
A subsequent written comment from
GSK provided additional information on
the Bridges to Access, Orange Card, and
Together Rx programs. The comment
also describes a Ventolin HFA Savings
Check program which will distribute at
least 3 million $10 coupons for use in
purchasing VENTOLIN HFA MDIs.
A representative of Schering speaking
at the PADAC meeting said Schering’s
SP Cares program, which is similar to
GSK’s Bridges to Access program,
distributes free drugs, including
PROVENTIL HFA, to low-income
uninsured patients.
A written comment asserted that the
Bridges to Access program provided
albuterol HFA MDIs to only
approximately 1.4 percent of the
uninsured patients who need albuterol
MDIs, and that the program would have
to be expanded to an extreme degree to
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provide meaningful supplies of
albuterol MDIs to all uninsured patients.
This comment also asserted that GSK’s
commitment to annually provide 2
million free albuterol HFA MDIs would
have a limited benefit to the uninsured
population because large numbers of
uninsured patients receive medical care
in the emergency departments of
hospitals rather than in a physician’s
office, and it is unlikely that the free
albuterol HFA MDIs will be distributed
to the emergency departments. This
comment was submitted before GSK’s
comment describing the Ventolin HFA
Savings Check program.
Another comment stated that any
patient assistance program must be
targeted to those most in need,
particularly low-income children and
minority populations, while yet another
comment stressed the importance of
patient assistance programs in the
transition to albuterol HFA MDIs.
We took these comments into
consideration in determining that
patients would be adequately served by
albuterol HFA MDIs. These patient
assistance programs have the potential
to alleviate difficulties that lower
income patients may have in obtaining
the higher-priced albuterol HFA MDIs.
We agree with the comment that
stated that these programs must
carefully target the populations most in
need of financial assistance in procuring
needed albuterol MDIs, and we strongly
recommend that GSK and Schering take
all reasonable steps to ensure that their
programs serve patients with the
greatest needs, regardless of whether
those patients are treated in a
physician’s office, clinic, or hospital
emergency department. This targeting is
particularly important in distributing
free albuterol HFA MDIs.
We believe that many of the concerns
expressed by the comment critical of
GSK’s Bridges to Access are valid, but
that the comment underestimates the
positive effect that Bridges to Access
and other patient assistance programs
can have. The estimate in the comment
did not factor in the 2 million free
albuterol HFA MDIs GSK has committed
to distribute to physicians as samples
and whatever free albuterol HFA MDIs
Schering may distribute. The comment
also could not factor in the effect of
GSK’s Ventolin HFA Savings Check
program. With successful targeting,
these free albuterol HFA MDIs and $10
coupons should have a beneficial
impact; with less successful targeting
the impact could be very limited (see
section VII.D.2 of this document). The
comment also ignores the potential
impact of Schering’s SP Cares program,
which is similar to GSK’s Bridges to
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Access program. We recognize that the
Bridges to Access and SP Cares
programs will have to expand to reach
all uninsured low and moderate income
patients who will need albuterol HFA
MDIs, but the degree of expansion
required would be smaller than that
described in the comment critical of the
Bridges to Access program. We also
believe that GSK and Schering
understand the need to expand these
programs, and that this understanding
was implicit in their testimony at the
PADAC meeting and written comments
(see pp. 5–6 of GSK’s corrected
comment of August 25, 2004 (2003P–
0029/CR1) and p. 4 of Schering’s
comment of August 13, 2004 (2003P–
0029/C31)).
(Comment 18) A speaker at the
PADAC meeting said because albuterol
HFA inhalers retail for $20 more than
generic albuterol CFC MDIs, an early
phaseout of albuterol HFA MDIs could
result in a total $5 billion in additional
treatment costs until HFA inhalers come
off patent. The speaker also said the
economic burden would fall most
heavily on those Americans least able to
pay the price, with a disproportionate
effect on minorities, inner-city children,
elderly patients on fixed incomes, and
the rural poor. The speaker asserted that
eliminating the essential-use
designation before lower-priced generic
albuterol HFA MDIs are on the market
would force many lower-income
patients to discontinue use of albuterol
MDIs. The speaker also referred to a
recent study in JAMA: The Journal of
the American Medical Association
indicating that increasing copayments
can reduce prescription drug use up to
32 percent. She further stated this
would result in a cascading increase in
total health care costs, as patients who
discontinue their albuterol are admitted
to emergency rooms and hospital wards.
A speaker representing an economics
consulting firm under contract to GSK
stated at the PADAC meeting that
patients would be adequately served by
albuterol HFA MDIs. He projected the
average price per MDI would increase
by $9.87 and the yearly average cost per
patient would rise by $16.02. He also
said adequate programs were in place to
minimize the adverse impact on lowerincome patients.
Several comments from patients,
health care professionals, and other
parties stated the elimination of lowerpriced generic albuterol MDIs that
would result from this rule would force
many patients to discontinue the use of
albuterol MDIs, with significant adverse
impact on their health, increased
hospitalizations, loss of time at work,
and a worsening quality of life. Many of
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these comments recommended the
essential-use status of albuterol MDIs
not be removed until after generic
albuterol HFA MDIs are approved and
marketed.
Other comments agreed with our
tentative conclusion stated in the 2004
proposed rule that patients will be
adequately served by albuterol HFA
MDIs.
While we do not agree with the
statement from the speaker from the
contract economic consulting firm that
the average price per MDI would only
increase by $9.87 and that the yearly
average cost per patient would only rise
by $16.02, we do agree with the
conclusion of the speaker that the price
of albuterol HFA MDIs will not prevent
patients from being adequately served.
As discussed in more detail in section
V of this document, we estimate that the
retail cash price per MDI would increase
by $27 and the average yearly cost to
uninsured patients would rise $95.
While higher drug prices are
undesirable, we do not believe that
asthma and COPD patients will be
forced to stop using albuterol MDIs
because of price increases. We believe
that the programs discussed in comment
17 of this document can, if properly
utilized, provide a safety net for lowerincome patients who otherwise could
not afford this very important drug.
Section V of this document contains a
fuller discussion of the economic issues
presented by this rulemaking. While we
recognize that sales of albuterol MDIs
may decline by approximately 1 or 2
percent as a result of this rulemaking,
this decline in sales does not necessarily
equate to patients having to forgo
appropriate treatment of their asthma or
COPD because of price increases. There
are many ways patients may modify
their behavior in order to minimize the
impact of elimination of generic
albuterol MDIs, including: increasing
their use of other asthma and COPD
drugs, including non-albuterol
bronchodilators (and thereby decreasing
their need for albuterol); buying fewer
MDIs to keep in different locations
because they have chosen to limit the
number of MDIs they have beyond the
one patients generally carry on their
person. Patients with infrequent bouts
of bronchospasm may also choose not to
purchase albuterol HFA MDIs that the
patients believe they might not use,
even though the patients are financially
able to do so.
(Comment 19) A speaker at the
PADAC meeting said an FDA policy that
removed lower priced generic drugs
from the market was contrary to the
intent of the Drug Price Competition
and Patent Term Restoration Act of 1984
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(Public Law 98–417) (Hatch-Waxman
amendments). A written comment
asserted the real intent of this
rulemaking was to remove generic
albuterol MDIs from the market.
We recognize that one of the
consequences, although not one we
desire, of this rulemaking will be the
removal, for a period of time, of generic
albuterol MDIs from the market. We
agree with the speaker at the PADAC
meeting that one of the general
intentions of the Hatch-Waxman
amendments is to encourage the entry of
lower-priced generic drug products into
the market. However, another key
purpose of the Hatch-Waxman
amendments is to encourage significant
innovations in human drugs (see
generally 130 Cong. Rec. H9113–14 and
H9121–22 (Sept. 6, 1984) (statements of
Rep. Waxman)). The development of
HFA inhalers represents large
investments of time and money by
innovator firms. This investment
resulted in innovative products that
significantly serve the public health by
protecting the stratospheric ozone.
While the provisions of the HatchWaxman amendments do not directly
apply to this rulemaking, the underlying
general policy of encouraging
innovation and protecting investment in
research and development does apply as
much as the policy of encouraging the
availability of lower-priced generic
drugs. Most importantly, there is no
specific provision in the Hatch-Waxman
amendments that prohibits us from
removing generic albuterol MDIs from
the market. There is, however, specific
language in the Clean Air Act (42 U.S.C.
7671) that requires us to evaluate
whether a use of an ozone-depleting
substance in a drug product is, or
remains, an essential use. We are
obligated to follow the specific mandate
Congress gave us in the Clean Air Act,
rather than one of two general policies
underlying another piece of legislation.
(Comment 20) One comment
suggested we approve generic albuterol
HFA MDIs immediately, to lower
expenses incurred by asthma patients.
Albuterol HFA MDIs are the subject of
patents that may affect the availability
of generic albuterol HFA MDIs until
they expire. FDA’s ability to approve
generics is constrained by the patent
and exclusivity protections afforded by
the Hatch-Waxman amendments. FDA
may not approve generic albuterol HFA
MDIs before permitted by law.
(Comment 21) One comment
expressed concern that the removal of
the essential-use designation for
albuterol MDIs would lead to higher
costs to the Federal Government as a
result of the Medicare prescription drug
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benefits that will go into effect on
January 1, 2006 (see Title I of the
Medicare Prescription Drug
Improvement and Modernization Act of
2003 (Public Law 108–173, December 8,
2003)). The comment recommended that
the essential-use designation for
albuterol not be removed until generic
albuterol HFA MDIs come on the
market, to minimize spending by the
Federal Government.
Although cost to the Federal
Government is not a criterion under
§ 2.125(g), the availability of
prescription drug benefits under
Medicare does affect whether patients
are adequately served by the non-ODS
products. In fact, the prescription drug
benefits will reduce the impact of higher
prices for albuterol MDIs on Medicareeligible patients, who would not
otherwise have prescription drug
insurance benefits. This will help
ensure that patients are adequately
served by albuterol HFA MDIs.
(Comment 22) A few comments
suggested that prices for albuterol HFA
MDIs would increase after the
rulemaking. A GSK spokesperson at the
PADAC meeting stated that GSK had
committed to a price freeze on
VENTOLIN HFA until December 31,
2007. The commitment was repeated in
GSK’s subsequent written comments.
We believe that GSK’s price freeze
will be effective in keeping prices at the
current level through much of the
transition period before the effective
date of this rule. Although Schering has
not made a similar commitment, it
seems unlikely that they will raise their
prices knowing that one of their two
competitors is committed to a price
freeze. The presence of both GSK and
Schering in the market should provide
downward pressure on prices for
albuterol HFA MDIs that will continue
after the effective date of this rule (see
pp. 13–20 of the National Economic
Associates’ comment of August 13, 2004
(2003P–0029/C25), and section V.D.1 of
this document). Even if this pressure
does not result in price decreases, it
may prevent price increases. A
representative of IVAX indicated at the
PADAC meeting that IVAX’s albuterol
HFA MDI would be priced lower than
PROVENTIL HFA and VENTOLIN HFA.
IVAX’s entry into the albuterol HFA
MDI market and the potential market
entry of additional albuterol HFA MDIs
will provide additional downward
pressure on prices even before the entry
of generic albuterol HFA MDIs.
(Comment 23) One comment objected
to the elimination of the essential-use
designation for albuterol MDIs, saying
the price of albuterol HFA MDIs is more
than $100 per MDI compared to generic
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albuterol CFC MDIs, which cost less
than $10 per MDI.
The issue of the impact of higher
prices for albuterol HFA MDIs is one
that we have given a great deal of
thought, but the difference is not nearly
as great as this comment states. The
weighted average (across all payer
types) of retail prescription price for
generic albuterol CFC MDIs during the
first half of 2004 was about $13.50 per
MDI and the weighted average retail
prescription price for albuterol HFA
MDIs was about $39.50 per MDI (see
section V.C.6 of this document). As we
discuss in our response to comment 18
and section V of this document, we do
not believe that this price difference
prevents patients from using albuterol
HFA MDIs.
(Comment 24) One comment
recommended that we perform a costbenefit analysis using Medical
Expenditure Panel Survey (MEPS) data
from the Agency for Healthcare
Research and Quality (AHRQ).
The analysis of impacts described in
section V of this document uses the
MEPS data. While the analysis does
look at both the costs and benefits of
this rulemaking, we would not
characterize the analysis as a full costbenefit analysis because we are unable
to fully quantify the public health costs
and environmental benefits in dollar
terms; however, we do quantify these
costs and benefits to the extent we are
able.
(Comment 25) One comment asserted
that, while our analysis in the 2004
proposed rule of the economic impact of
this rulemaking on patients was
appropriate to the extent the analysis
focused on whether higher prices would
deter patients from using albuterol
MDIs, those portions of the economic
analysis that dealt with more general
societal costs were inappropriate and
contrary to the provisions of § 2.125.
We are required to examine the
broader societal costs and benefits of
any rulemaking. Executive Order 12866
directs us to assess all costs and benefits
of available regulatory alternatives and,
when regulation is necessary, to select
regulatory approaches that maximize
net benefits. The Regulatory Flexibility
Act (5 U.S.C. 601–612) requires agencies
to analyze regulatory options that would
minimize any significant impact of a
rule on small entities. Section 202(a) of
the Unfunded Mandates Reform Act of
1995 (Public Law 104–4) requires that
agencies prepare a written statement
that includes an assessment of
anticipated costs and benefits before
proposing any rule that includes any
Federal mandate that may result in
significant expenditure by State, local,
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and tribal governments, or the private
sector.
(Comment 26) A few comments stated
albuterol HFA MDIs were unacceptable
alternatives because they did not propel
the drug with adequate force into the
lungs. Other comments stated that they
had to use an albuterol HFA MDI
several times to get the same effect they
had received from significantly fewer
uses of an albuterol CFC MDI. Several
comments from patients stated that their
experience indicated albuterol HFA
MDIs were less effective than albuterol
CFC MDIs, while other comments from
patients stated that they had found
albuterol HFA MDIs to be more effective
than albuterol CFC MDIs. One physician
commented that she believed HFA MDIs
were better drug delivery systems than
CFC MDIs.
The wording of certain comments
leads us to believe that at least some of
people submitting these comments may
be confusing dry powder inhalers (DPIs)
or aqueous (AQ) pumps with HFA
MDIs. There are currently no albuterol
DPIs or AQ pumps being marketed. We
did not consider any DPI or AQ pump
as a potential alternative to albuterol
CFC MDIs. Other comments may reflect
the common misperception that MDIs
propel drugs into the lungs. MDIs do not
in fact propel any significant amount of
drug into the lungs. MDIs propel the
drug into the mouth and the drug is
then inhaled into the lungs. Albuterol
CFC MDIs and albuterol HFA MDIs
work in same way; both contain the
active ingredient as a very fine powder
which is delivered in a suspension into
the patient’s mouth. MDIs that
forcefully deliver the drug suspension
may actually be less effective at
delivering the drug into the lungs. In
these instances, a significant portion of
the drug may be sprayed onto the
surfaces in the back of the mouth, from
which they will be swallowed rather
than inhaled into the lungs. An
explanation that we believe likely for
some of these perceived differences is
the possibility that the albuterol HFA
MDIs that were being used had clogged
mouthpieces. Cleaning the mouthpieces
as described in the labeling for
PROVENTIL HFA and VENTOLIN HFA
should alleviate these problems.
Whatever the perceived differences
between albuterol CFC MDIs and
albuterol HFA MDIs may be, clinical
studies have shown the albuterol HFA
MDIs are as effective as the albuterol
CFC MDIs in treating asthma and COPD.
(Comment 27) One comment stated
we should not remove the essential-use
designation for albuterol MDIs because
members of the person submitting the
comment’s family are allergic to the
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lactose contained in alternative
products.
Neither VENTOLIN HFA nor
PROVENTIL HFA contains lactose.
While other inhaled drug products for
the treatment of asthma and COPD do
contain small amounts of lactose, our
determination on the essential-use
designation for albuterol MDIs is based
exclusively on the suitability of
VENTOLIN HFA and PROVENTIL HFA
as alternatives.
(Comment 28) One person said in his
comment he had an adverse reaction
that included tachycardia (elevated
heart rate) after taking PROVENTIL
HFA. He attributed the adverse event to
ethanol, which is an inactive ingredient
in PROVENTIL HFA and to which he is
sensitive.
Reports of an allergic reaction
attributed to the very small amounts of
ethanol contained in PROVENTIL HFA
are extremely rare.9 VENTOLIN HFA,
which does not contain ethanol, should
be considered for asthma and COPD
patients who may be sensitive to
ethanol. Unlike the albuterol CFC MDIs,
VENTOLIN HFA and PROVENTIL HFA
do not contain identical active
ingredients, and patients having
difficulties with one product should
discuss with their physicians switching
to the other.
(Comment 29) One person said in his
comment he had an asthma attack after
his first use of a QVAR (beclomethasone
dipropionate) HFA MDI. He attributed
the adverse event to the HFA propellant
in the QVAR MDI and concluded that
HFA MDIs would not serve patients
who were sensitive to HFA.
Another person said in her comment
her use of an albuterol HFA MDI caused
irritation and triggered an asthma attack.
A third comment suggested HFA
MDIs could be less likely to cause
paradoxical bronchospasm because of
tighter specifications for the various
compounds in the MDIs.
Bronchospasm may occur after using
any inhaled asthma drug, including
both albuterol CFC and HFA MDIs. The
approved labeling for both albuterol
CFC and HFA MDIs, as well as QVAR
and most other approved inhaled drugs,
describe paradoxical bronchospasm as
an adverse event that can be expected in
9 We are only aware of one report in our
MedWatch system of an allergic reaction attributed
to the very small amounts of ethanol contained in
PROVENTIL HFA. VENTOLIN HFA, which does
not contain ethanol, should be considered for
asthma and COPD patients who may be sensitive to
ethanol. MedWatch is the FDA safety information
and adverse event reporting program, which allows
health care professionals and consumers to report
serious problems that they suspect are associated
with the drugs and medical devices they prescribe,
dispense, or use.
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a small number of patients. Paradoxical
bronchospasm seems to be associated
with the first use of an MDI or vial of
an inhaled drug. The warnings about
paradoxical bronchospasm represent a
general concern with inhaled drugs, and
do not represent a special concern for
albuterol CFC and HFA MDIs or QVAR.
Paradoxical bronchospasm is very rare;
a study conducted in the United
Kingdom of 10,472 patients regularly
using VENTOLIN EVOHALER (an
albuterol HFA MDI marketed in the
United Kingdom that is substantially
similar to VENTOLIN HFA) over five 3month observation periods, did not
show any incidents of paradoxical
bronchospasm (Ref. 3). We have not
seen any evidence from the clinical
studies of various HFA MDIs that this
type of adverse event is more or less
common with HFA MDIs than with CFC
MDIs. Absent other data, we cannot
assume that the adverse events
described in the comments were caused
by the HFA propellant in the MDIs.
(Comment 30) A few comments stated
albuterol HFA MDIs left a powdery
residue at the back of the throat. One
person said in her comment that after
using an albuterol HFA MDI she felt the
need to rinse her mouth out. One
comment said this tendency to leave a
powdery residue could lead to thrush
and other infections.
A very small number of patients have
reported an unpleasant powdery residue
in the oral cavity after use of an
albuterol HFA MDI. Any MDI can leave
a residue in the oral cavity. Use of a
spacer can minimize the amount of
residue left in the mouth. Patients who
experience this problem may wish to
speak to their physicians about using a
spacer with the MDI. We do not
consider problems with a powdery
residue to be either prevalent enough or
serious enough to prevent patients from
being adequately served by albuterol
HFA MDIs.
Thrush, also known as candidiasis, is
occasionally seen with the use of
inhaled corticosteroids. Although
thrush may be seen in patients who are
taking both inhaled corticosteroids and
inhaled albuterol, there is no evidence
to suggest that use of albuterol or HFA
contributes to the development of
thrush. Accordingly, we do not believe
thrush to be a problem with use of
albuterol HFA MDIs.
(Comment 31) One comment stated
albuterol HFA MDIs are not an adequate
substitute because they cannot be used
with spacers.
Commercially available spacers can
be used with both albuterol HFA MDIs.
Patients who are having difficulties with
any MDI may wish to speak to their
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physicians about using a spacer in
conjunction with the MDI.
We find that patients who medically
require albuterol CFC MDIs are
adequately served by albuterol HFA
MDIs.
F. Effective Date
(Comment 32) Several speakers at the
PADAC meeting and comments,
including comments from Schering, 3M,
and GSK, recommended an effective
date of December 31, 2005.
Schering, 3M, and GSK have all stated
that adequate production capacity and
supplies would be in place by December
31, 2005. However, the December 31,
2005, date is merely a projected date,
and neither Schering, 3M, nor GSK
provided the basis for their projections.
No timelines, construction and
installation schedules, or training goals
were provided to us. We have no
descriptions of what new machinery
must be procured, nor any idea when
that machinery can be up and running.
While we believe that the projections
were made in good faith, unanticipated
delays and shortages could push the
date on which adequate production
capacity and supplies are in place
significantly beyond December 31, 2005.
Due to the lack of underlying
information, we are unable to evaluate
the likelihood or length of any possible
delays.
If this rule were to go into effect
before adequate production capacity
and supplies were in place, there would
not be a smooth transition from
albuterol CFC MDIs to albuterol HFA
MDIs. We could be forced to publish a
document postponing the effective date.
We could see resumption of production
at albuterol CFC MDI lines that had
been closed and increased production to
restock supplies of albuterol CFC MDIs
that had been allowed to dwindle in
anticipation of the effective date of this
rule. If needed CFCs, MDI components,
or production facilities were
unavailable, shortages of albuterol MDIs
could exist.
Furthermore, if we were forced to
push the effective date of this rule back
because of the failure of manufacturers
to have adequate production capacity
and supplies in place, it would be very
harmful to any transition education
program. Patients and health care
providers would be provided with
different dates by which the transition
from albuterol CFC MDIs to albuterol
HFA MDIs would be completed. This
could lead to confusion, lack of trust,
and the belief that people would not
have to think about the transition
because it would probably be postponed
again.
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When we consider how serious and
life threatening asthma and COPD are,
and how important albuterol MDIs are
in treating asthma and COPD, it
becomes apparent that a conservative
estimate of when sufficient supplies and
production capacity will exist and a
later effective date will better ensure
that shortages do not happen and a
smoother transition will be made. For
these reasons we believe that a
December 31, 2005, effective date does
not provide an adequate safety margin
to ensure that adequate production
capacity and supplies will be in place.
Accordingly, we have determined that
December 31, 2008, is a more
appropriate effective date for this rule.
We arrived at a December 31, 2008,
effective date with the expectation that
an orderly transition to albuterol HFA
MDIs would be completed by that date.
Although significant production and
supplies may be in place prior to this
date, in light of the serious
consequences of inadequate supplies
and the need to ensure that vulnerable
patients have adequate access, the date
of December 31, 2008, ensures that the
criteria in § 2.125(g) will be met and that
the transition to albuterol HFA MDIs
can be accomplished smoothly. This
transition period between the
publication of the final rule and the
effective date ensures that new facilities
will be on line, that manufacturers will
have successfully demonstrated their
ability to produce necessary supplies of
albuterol HFA MDIs, and patients and
health care providers will be adequately
educated about the transition to
albuterol HFA MDIs. After the effective
date, section 610 of the Clean Air Act
would prohibit the sales of albuterol
CFC MDIs in interstate commerce. As
discussed in response to comment 42 of
this document, the transition time under
this rule should allow for retailers and
their suppliers to deplete their stock.
(Comment 33) One comment
suggested a 2007 effective date without
giving reasons why this date would be
more appropriate than others.
This comment did not provide any
information or rationale for the date,
and our rationale for the December 31,
2008, effective date is set out in our
response to comment 32 of this
document.
(Comment 34) A few comments asked
that we set an effective date that will
allow patients to try different albuterol
HFA MDIs to see if they perform
adequately for individual patients.
We believe the December 31, 2008,
effective date provides ample
opportunity for patients to work with
their healthcare providers to determine
the best substitute.
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(Comment 35) Several comments
urged us to set the effective date for this
rule late enough to allow lower-priced
generic albuterol HFA MDIs onto the
market before the essential-use status of
albuterol MDIs is removed.
As we discussed in our responses to
comment 18 and in section V of this
document, we do not believe that
presence of generic albuterol HFA MDIs
is necessary to ensure that patients are
adequately served by albuterol HFA
MDIs.
(Comment 36) In the 2004 proposed
rule we asked for comments ‘‘on when
patents may cease to bar the marketing
of generic albuterol HFA MDIs’’ (69 FR
33602 at 33608). We did not receive any
substantive comments on this issue.
One comment, while agreeing with us
that we do not have the institutional
expertise to evaluate patents, criticized
our statement that ‘‘it seems at least
possible that key patents could be
successfully challenged well before
2015 or perhaps even 2010, allowing
generic drugs to enter the market much
earlier than anticipated’’ (69 FR 33602
at 33608). The comment asserted it
would be irresponsible to base any
decision on the mere possibility that
patents may be successfully challenged.
The comment also stated competition
would not be blocked because of the
ability of firms to license HFA MDI
technology from 3M. It also pointed to
IVAX as a potential source of
competition.
We did not receive any substantive
comments on the validity of the patents
listed in the Orange Book for albuterol
HFA MDIs. Because we have
determined that, as we discussed in our
response to comment 18 and in section
V of this document, the presence of
generic albuterol HFA MDIs in the
market is not necessary to ensure that
patients are adequately served by
albuterol HFA MDIs, it is not necessary
for us to reach a conclusion on the
validity of those patents. We do not
believe that IVAX or entrants into the
albuterol HFA MDI market that license
HFA MDI technology from 3M will be
priced as low as current generic
albuterol CFC MDIs. We base this belief
on the added expense that licenses will
entail for manufacturers and the past
history of drug pricing. However, we do
believe that IVAX and other, potential,
entrants can exert downward pressure
on prices that could result in lower
prices than we currently see for
albuterol HFA MDIs.
(Comment 37) A representative of
Honeywell, speaking at the PADAC
meeting, said Honeywell planned to
resume production of CFC propellants
at a Louisiana plant, and gave
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assurances that Honeywell Chemicals
could supply CFC propellants for years
to come, if needed. He also said FDA
should not consider a shortage of CFC
propellants in establishing a transition
strategy. Honeywell later provided more
details on the subject in a written
comment.
Another speaker at the PADAC
meeting said Honeywell’s resumption of
production at their Baton Rouge plant
would violate U.S. law and the Montreal
Protocol. He further said that according
to statements made by Honeywell,
current stockpiles of CFCs coupled with
production of CFCs at Honeywell’s
Netherlands facility, which is scheduled
to close at the end of 2005, should meet
U.S. demand for CFCs for use in MDIs
until 2008.
Another comment stated it was
appropriate for us to take into account
the disruptions in the supply of CFCs
caused by Honeywell ending production
of CFCs at their Netherlands facility and
the equivocal legal status of
Honeywell’s resumption of production
of CFCs at their Baton Rouge facility. It
also said we should carefully scrutinize
Honeywell’s ability to manufacture
pharmaceutical grade CFCs at the Baton
Rouge facility.
Although we discussed Honeywell’s
continued production of CFCs in the
2004 proposed rule (69 FR 33602 at
33607–33608), this issue does not
address any of the criteria under which
we are making a determination on the
essential-use status of albuterol MDIs.
The criteria in § 2.125(g) direct us to
examine the adequacy of supplies and
capacity for the non-ODS substitutes,
but not the supplies and capacity for the
ODS product.
(Comment 38) Speakers at the PADAC
meeting and written comments stated
that the Parties to the Montreal Protocol
were unlikely to continue to approve
the United States’ future nominations
for allocations of CFCs for use in MDIs.
One comment asked that we carefully
consider the future supply of CFCs in
setting an effective date for this rule.
Another comment pointed out that a key
raw material in the production of CFCs
is carbon tetrachloride, an ODS that is
being phased out under the provisions
of the Montreal Protocol. The comment
asserted that this could lead to a
situation where it could be very difficult
to obtain the needed raw materials for
the manufacture of CFCs, even if the
manufacture itself was allowed under
the Montreal Protocol. Another
comment urged us to not allow the fact
that other Parties to the Montreal
Protocol have initiated phaseouts of
albuterol CFC MDIs pressure us into a
premature action, pointing out that
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prices for albuterol HFA MDIs are lower
in other countries.
We are obligated to follow the
procedures and criteria in § 2.125 in this
rulemaking, and the continued supply
of CFCs under the Montreal Protocol or
the phaseout strategies in other
countries are not criteria listed in
§ 2.125(g) and these issues were not
considered in this rulemaking.
(Comment 39) Prior to publication of
the 2004 proposed rule, we received a
comment from a manufacturer of MDI
components submitted in response to
the Stakeholders’ petition. The
manufacturer said it has the ongoing
capacity to supply MDI components
necessary for ongoing use of CFC MDIs,
including albuterol CFC MDIs, and it
will continue production as long as
there is sufficient demand.
While we appreciate the information
contained in this comment, the
continued availability of MDI
components necessary for continuing
use of CFC MDIs is also not a criterion
under § 2.125(g) upon which we may
base our decision.
(Comment 40) One speaker at the
PADAC meeting suggested that FDA
monitor patient compliance and access
to albuterol HFA MDIs and reserve the
right to allow a certain number of
albuterol CFC MDIs to be sold in case
of a real emergency.
Under the Clean Air Act, a use of an
ODS is either essential or it is not. We
are currently unaware of any
interpretation of the provisions of the
Clean Air Act that would give us the
flexibility to allow emergency sale or
distribution of a CFC MDI once its use
is determined to be non-essential.
(Comment 41) One comment
recommended that we not set an
effective date until we are certain that
adequate production capacity will exist.
In choosing December 31, 2008, as the
effective date of this rule, we did so
with every reasonable expectation that
adequate supplies and production
capacity will exist by that time.
(Comment 42) A comment
recommended that we not establish a
date beyond which retail pharmacies are
barred from selling albuterol CFC MDIs,
even if we did establish a date beyond
which albuterol CFC MDIs could not be
manufactured.
The sale of remaining stocks of
albuterol CFC MDIs was one of the
factors we considered in establishing an
effective date that is well after the date
we expect the transition to HFA MDIs
to be substantially completed by
manufacturers of albuterol MDIs. This
additional buffer period should give
wholesalers and retailers adequate time
to dispose of stocks of albuterol CFC
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MDIs. That being said, we do not have
the authority to establish an effective
dates for wholesalers and retailers that
differs from an effective date for
manufacturers. We can only make a
determination on the date by which the
criteria set out in § 2.125(g) will be met
and the use of ODSs in albuterol MDIs
is no longer essential. Once a product is
no longer an essential use, the
prohibitions in section 610 of the Clean
Air Act automatically come into play.
However, section 610 of the Clean Air
Act only applies to sales in interstate
commerce. If shipments of albuterol
CFC MDIs by producers have stopped
by December 31, 2007, or shortly
thereafter, wholesalers and retailers
should not find it difficult to distribute
their stocks by December 31, 2008.
G. CFCs and the Environment
(Comment 43) A few comments
asserted that CFCs used in MDIs do not
have an adverse impact on the
environment because the CFCs are
inhaled rather than being released into
the environment.
Nearly all of the CFCs inhaled into the
lungs from an MDI are almost
immediately exhaled into the
environment. The small amounts of
CFCs absorbed into the body are later
excreted and exhaled without being
broken down. Essentially all of the CFCs
released from an MDI end up in the
atmosphere with resulting harm to the
stratospheric ozone layer.
(Comment 44) A few comments
asserted that the amount of ODSs
released from albuterol CFC MDIs is
insignificant, and eliminating their use
would not provide any environmental
benefit.
The United States evaluated the
environmental effect of eliminating the
use of all CFCs in an environmental
impact statement (EIS) in the 1970s (see
43 FR 11301, March 17, 1978) (the 1978
rule). As part of that evaluation, FDA
concluded that the continued use of
CFCs in medical products posed an
unreasonable risk of long-term
biological and climatic impacts (see
Docket No. 96N–0057). In 1990,
Congress enacted Title VI of the Clean
Air Act, which codified the decision to
fully phase out the use of CFCs over
time. Congress did not assign us the task
of determining what amount of
environmental benefit would result
from the removal of CFC-containing
medical devices, diagnostic products,
drugs, and drug delivery systems from
the market. Congress did instruct us to
determine whether such products are
essential. This rulemaking fulfills that
obligation.
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(Comment 45) A comment asserted
that the Montreal Protocol is working
well and that according to the Executive
Summary of the ‘‘World Meteorological
Organization Global Ozone and
Research Project—Report No. 47:
Scientific Assessment of Ozone
Depletion: 2002’’ (Executive Summary)
(available at https://www.unep.org/
ozone/Publications/
6v_science%20assess%20panel.asp),
the continuing use of CFCs in albuterol
MDIs would delay restoration of the
Earth’s ozone layer to its 1980 condition
by an insignificant time past the
currently projected date of 2050. The
comment quoted the following passage
from page xvii of the Executive
Summary:
The updated, best-estimate scenario for
future halocarbon mixing ratios suggests that
the atmospheric burden of halogens will
return to the 1980 pre-Antarctic-ozone-hole
levels around the middle of the 21st century,
provided continued adherence to the fully
amended and adjusted Montreal Protocol.
Only small improvements would arise from
further reduced production allowances in the
future.
The size of the delay in the date the
ozone layer will be restored to its 1980
condition is not a criterion in
determining which medical devices,
diagnostic products, drugs, and drug
delivery systems are essential under the
Clean Air Act. These criteria are set out
in § 2.125 and are discussed previously
in this document. However, we note
that the estimate described in the
quoted paragraph assumes ‘‘continued
adherence to the fully amended and
adjusted Montreal Protocol.’’ As we
discussed in section II.C.2 of this
document, Decision IV/2 envisioned
elimination of the production and
importation of CFCs by January 1, 1996,
by Parties that are developed countries.
Although production and importation of
CFCs for use in albuterol MDIs are
permitted, year to year, as an essential
use under the Montreal Protocol, we fail
to see how a rule that permits sale and
distribution of albuterol CFC MDIs into
2008 can be characterized as a reduction
in production allowances. The Montreal
Protocol is frequently called the most
successful environmental treaty in
history, yet its success is based
primarily on voluntary compliance by
all of the Parties to the treaty. If the
United States were to continue sale and
distribution of ODS products after
adequate alternative products were
available, this could lead other Parties
to do the same, eventually threatening
the integrity of the Montreal Protocol. In
the words of the Executive Summary
cited in the comment, ‘‘Failure to
comply with the Montreal Protocol
would delay or could even prevent
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recovery of the ozone layer.’’ (Executive
Summary at xxv.) The continued
existence of a strong Montreal Protocol
is in the best interest of the public
health of the United States, and our
failure to take timely action on albuterol
MDIs could potentially weaken the
Montreal Protocol.
(Comment 46) One comment
criticized our attempts in the 2004
proposed rule to quantify the
environmental benefits of this
rulemaking.
We agree with the comment that
accurately quantifying the direct
environmental benefits of this rule is
very difficult and that quantifying the
indirect environmental benefits may be
impossible. However, as we discussed
in our response to comment 25 of this
document, we are under separate legal
obligation to examine the broader
societal costs and benefits of any
rulemaking, including the
environmental costs and benefits.
Accordingly, the discussion of the
environmental costs and benefits of this
rule is separate from the determination
as to whether the criteria in § 2.125 have
been met.
(Comment 47) One comment stated
the amount of CFCs released by MDIs is
negligible compared to naturally
occurring CFCs.
There are no naturally occurring
CFCs.
(Comment 48) A few comments
seemed to confuse CFCs with other
greenhouse gases, such as carbon
dioxide and nitrous oxide, when stating
that MDIs were a minor source of CFCs
compared to sources such as power
plant and automobile emissions.
While CFCs are considered to be
greenhouse gases, we are publishing this
rule because the criteria in § 2.125 have
been met, rather than any contribution
CFCs may be making towards global
warming.
(Comment 49) A few comments stated
that MDIs were a minor source of CFCs
compared to hair spray and deodorants.
CFCs were banned from deodorants,
hair spray, and other cosmetics by the
1978 rule. Cosmetics containing CFCs
have not been legally marketed in the
United States since April 15, 1979, the
effective date of the 1978 rule.
H. Comments on the Analysis of
Impacts
(Comment 50) We received several
comments about our estimates of the
price increases that might result from
the proposed rule.
One comment objected to FDA
estimates of expected price increases
based on the price gap between
albuterol CFC MDIs and albuterol HFA
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MDIs from drugstore.com, because the
Web site’s market share is small and
therefore does not accurately represent
market prices. This comment
recommended that we use retail cash
albuterol MDI prices from IMS Health
Inc. (IMS). Another comment took
average wholesale prices of albuterol
MDIs and inflated them according to
average retail markups on albuterol for
cash payers of 28.8 percent for branded
MDIs and 363.3 percent for generic
MDIs. From this, the comment
calculated cash payers will pay on
average $8.61 more per MDI.
Another comment contended that
price increases are of limited
importance, because insurers have an
incentive to maintain lower copayments
for albuterol. Lower copayments would
minimize the costs to insurers for
emergency department visits,
hospitalizations, etc. that result from
poorer compliance with albuterol
therapy.
A few comments said individuals
eligible for Medicare or Medicaid are
unlikely to face higher costs for
albuterol as a result of this rule.
We believe that cash albuterol MDI
prices best reflect prices paid by the
uninsured, and, consistent with the
comment, have considered data on retail
cash albuterol MDI prices from IMS,
which are generally considered to be the
best price data available. Although we
did use prices from drugstore.com in the
2004 proposed rule,10 this was done
primarily because we did not have
rights to use the IMS data when the
2004 proposed rule was being prepared.
IMS retail price data reflect the impact
on consumers better than other
measures such as estimates derived
from average wholesale cash prices
inflated by average retail markups for
cash payers.
After reviewing these comments, we
continue to believe that the likely price
increase will be approximately the
current difference in price between
generic albuterol CFC MDIs and
albuterol HFA MDIs, although
competition from IVAX’s approved
albuterol HFA MDI and other albuterol
10 Although the prices derived from IMS data give
us much greater assurance than the prices found on
drugstore.com that the numbers we use accurately
reflect market prices, in the case of albuterol MDIs
the differences in prices are not very significant.
The drugstore.com price for generic albuterol CFC
MDIs is $13.99, while the weighted average retail
price derived from IMS data is approximately
$13.50. The drugstore.com prices for VENTOLIN
HFA and PROVENTIL HFA are $39.61 and $38.99
respectively, while the weighted average retail price
derived from IMS data for albuterol HFA MDIs is
$39.50. The drugstore.com prices are those posted
on February 10, 2005. See section V.C.6 of this
document for more information on the prices
derived from IMS data.
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HFA MDIs that enter the market may
lower prices somewhat.
We believe that price increases are an
important determinant of access for
individuals without insurance, who are
likely to pay the full amount of price
increases out of their own pockets.
Copayments for albuterol MDIs for
privately insured individuals may
change when this rule goes into effect,
but such changes will be determined by
their insurers. While copayments are
generally higher for branded drugs, they
are not necessarily higher for branded
drugs that lack a generic alternative. We
are unable to predict how average
copayments may change as a result of
the rule.
We agree with the comments
suggesting that individuals eligible for
Medicare or Medicaid are unlikely to
face higher out-of-pocket costs for
albuterol as a result of this rule.
(Comment 51) Comments were
submitted about our use of estimates of
consumers’ response to drug price
increases taken from the Goldman
article (Ref. 4). One comment noted that
elasticity estimates in the Goldman
article were based on a broad range of
asthma drugs, many of which differ
from albuterol MDIs in important ways.
The comment contended that these
differences prevent us from drawing
meaningful conclusions about how
demand for albuterol MDIs will respond
to price increases.
A second comment noted that the
proposed rule failed to make use of
estimates in the Goldman article
indicating a price elasticity of demand
for asthma drugs as large as -.32.
We recognize the limitations of
applying results from the Goldman
article to the market for albuterol MDIs,
and have sought to characterize fully the
associated uncertainty. We believe,
however, that focusing on a range of
elasticity estimates from -.05 to -.15 is
reasonable and appropriate given
available information.
We used the Goldman article because
it provides recent estimates of how
consumer demand for asthma drugs
responds to price increases. The article
finds that among all users of asthma
drugs, a doubling of copayments for
asthma drugs reduced drug use by 32
percent. Among chronic asthma
sufferers, use of asthma drugs decreased
only 22 percent. To the extent that
asthmatics are more willing to reduce
their use of maintenance drugs, such as
steroid inhalers, than to reduce their use
of rescue drugs, such as albuterol MDIs,
the true consumer response to albuterol
MDI price increases may be less than
the Goldman article suggests.
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We acknowledge the potential
shortcomings of applying estimates from
the Goldman article to the market for
albuterol MDIs but, lacking better
information upon which to base our
estimates, focus on the range of
elasticity estimates from -.05 to -.15, the
same range focused upon in the
proposed rule.
(Comment 52) Several comments
sought to place our analysis of impacts
in proper historical context by
suggesting that the reductions in use
that we estimate are small compared
with historical variations. One comment
noted that introduction of generic
albuterol MDIs to the market for
albuterol MDIs in the mid-1990s, and
the associated decline in prices, was not
associated with any decrease in asthma
morbidity.
A second comment noted that the
introduction of cheaper generic
albuterol MDIs did not result in an
increase in consumption of albuterol
MDIs, implying that removal of generic
albuterol MDIs should not result in a
decrease in consumption.
A third comment pointed out that the
introduction of generic albuterol MDIs
to the market coincided roughly with
the entry of therapeutic alternatives
such as salmeterol xinafoate, ipatropium
bromide, fluticasone propionate, and
COMBIVENT, which would have
decreased demand for albuterol MDIs at
the time lower priced generics became
available.
A fourth comment noted that year-toyear fluctuations in demand for
albuterol MDIs exceed 1 million units,
implying that estimated decreases in
albuterol demand are small relative to
the market.
We believe it is difficult to draw
conclusions about the future albuterol
MDI market based on characteristics of
the market from the 1990s. Our
projected decrease in albuterol MDI
sales assumes that, apart from price
increases, other determinants of
albuterol demand are held constant. In
the mid–1990s, several factors that
influence albuterol MDI demand
changed including the prevalence and
incidence of asthma and COPD and
patterns of medical practice. However,
the effects of these changes cannot
easily be estimated with existing data.
For example, changes in asthma
prevalence before and after 1997 are
complicated by changes in the design of
the National Health Interview Survey in
1997. We believe the comment stating
that introduction of new asthma drugs
at this time decreased demand for
albuterol MDIs is probably correct, but
we lack the data needed to quantify any
decrease in demand caused by
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introduction of new asthma drugs.
Because important determinants of
albuterol MDI demand are not held
constant, the lack of a clear relationship
between aggregate albuterol MDI sales
and average prices in the 1990s does not
undermine the projection that, all other
factors remaining the same, use of
albuterol MDIs will fall as prices rise.
We agree that a reduction in albuterol
MDI use of several hundred thousand
annually is a small percentage of the
total number of albuterol MDIs used in
the United States.
I. Other Comments
(Comment 53) Speakers at the PADAC
meeting and written comments said
albuterol MDIs were overused and the
phaseout of albuterol CFC MDIs would
be an appropriate time for physicians
and patients to reevaluate the patients’
use of asthma medication. The
reevaluation would optimize drug
regimens used by asthma patients by
emphasizing use of maintenance drugs
and deemphasizing the use of albuterol
MDIs as a rescue medication. One
comment suggested we incorporate
strategies to encourage these
interchanges into this final rule.
Another written comment disagreed
with these comments, and asserted that
the elimination of the essential-use
designation for albuterol MDIs should
not be viewed as a teachable moment
and it would be inappropriate to force
patients to use other longer acting but
more expensive drugs by effectively
raising the price of albuterol MDIs.
While recognizing that many experts
believe that albuterol MDIs are being
overused, we do not have any reliable
data that show that there is a significant
pattern of overuse. In any case, the
overuse or underuse of a drug product
is not a factor that we consider under
§ 2.125(g). We do, however, welcome
any opportunity for physicians and
patients to reexamine the patients’ drug
use and to try to optimize the patients’
treatment regimens. It is also important
to remember that we do not regulate the
practice of medicine and, depending on
how the strategies are expressed, an
effort on our part to incorporate into our
regulation strategies to encourage these
consultations might be construed as the
regulation of the practice of medicine.
(Comment 54) A comment from an
industry organization stated that
educating patients and health care
providers about the transition from
albuterol CFC MDIs to albuterol HFA
MDIs is very important, and offered to
participate in cooperative education
programs with FDA and other interested
parties. GSK has outlined their
education plans in their comments.
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Other comments stated the importance
of transition education.
We agree that educating patients and
health care providers about the
transition is very important. Anyone
who wishes to discuss a cooperative
educational effort with HHS and FDA
should contact FDA or the Office of the
Secretary of HHS.
(Comment 55) One comment
recommended that, in setting an
effective date, we take into
consideration the time necessary to
educate patients and health care
providers about the transition to
albuterol HFA MDIs, and one comment
recommended more time for this
education.
We believe that educating patients
and health care providers about the
transition to albuterol HFA MDIs is very
important. From most patients’
perspective, albuterol HFA MDIs are
essentially identical11 to the albuterol
CFC MDIs they will be replacing. An
explanation that an albuterol HFA MDI
is being substituted for the albuterol
CFC MDI the patient had been receiving
and a explanation of the differences in
using the new MDI should be adequate
for the vast majority of patients. This
explanation can be given by the
patient’s physician, pharmacist, or other
health care provider. While we realize it
will take some time to prepare and
distribute educational material, we
believe that adequate education can
easily be provided before the final
transition to albuterol HFA MDIs.
(Comment 56) One comment asserted
that ‘‘a premature phaseout would
compromise the reward structure for
innovation.’’ The comment also asserted
that firms that had made substantial
investments in developing albuterol
HFA MDIs would be adequately
rewarded for the innovation even if this
rule were made effective at a date that
would allow generic albuterol HFA
MDIs to enter the market before the
removal of the essential-use designation
for albuterol MDIs. The comment stated
that GSK had profited handsomely from
sales of its combination fluticasone and
salmeterol DPI products in the United
States and abroad.
We do not see, nor does the comment
explain, how profits from the sale of
combination fluticasone and salmeterol
11 While PROVENTIL HFA and VENTOLIN HFA
can be substituted for albuterol CFC MDIs, they are
not therapeutic equivalents to albuterol CFC MDIs,
or to each other, as that term is defined in the
Orange Book. There are minor differences between
the formulations of VENTOLIN HFA and
PROVENTIL HFA that might be significant for some
small patient subpopulations (see our response to
comment 28 of this document), but for the vast
majority of patients these differences should not be
significant.
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DPIs could be seen as a reward for
GSK’s albuterol HFA MDI research and
development. Even if we assume that
GSK’s sales of other products somehow
provide adequate incentives for its
innovation, the comment does not assert
how the research and development
efforts of 3M, the manufacturer of the
first albuterol HFA MDI marketed in the
United States, have been rewarded.
The development of ozone-friendly
products is important to achieving the
goal of protection of the Earth’s ozone
layer. Accordingly, it is a factor we
considered in our analyses of impacts
(see 69 FR 33602 at 33614–33615 and
section V of this document).
(Comment 57) One comment
emphasized the importance of
encouraging the development of ozonefriendly products and stated that, in
consideration of the pharmaceutical
firms developing ODS free alternatives,
the U.S. Government had committed
itself ‘‘to ensure prompt removal of
nonessential CFC MDIs as soon as new
and reformulated products became
available.’’
As we said previously in this
document, the development of ozonefriendly products is important to
achieving the goal of protection of the
Earth’s ozone layer. However, we are
unaware of the commitment described
in this comment. The 2002 final rule
and this rulemaking have been
undertaken under our obligations under
the Clean Air Act and the Montreal
Protocol.
(Comment 58) A few comments
expressed unfavorable opinions on
salmeterol DPIs and combination
fluticasone and salmeterol DPIs.
Another comment complained about the
high prices of levalbuterol
hydrochloride (HCl) inhalation solution.
We have not considered salmeterol
DPIs, combination fluticasone and
salmeterol DPIs, or levalbuterol HCl
inhalation solution to be alternatives to
albuterol CFC MDIs. Comments about
salmeterol DPIs, combination
fluticasone and salmeterol DPIs, and
levalbuterol HCl inhalation solution are
not relevant to this rulemaking.
IV. Environmental Impact
We have carefully considered the
potential environmental effects of this
action. We have concluded that the
action will not have a significant
adverse impact on the human
environment, and that an environmental
impact statement is not required. Our
finding of no significant impact, and the
evidence supporting that finding,
contained in an environmental
assessment, may be seen in the Division
of Dockets Management (see ADDRESSES)
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between 9 a.m. and 4 p.m., Monday
through Friday.
V. Analysis of Impacts
A. Introduction
We have examined the impacts of the
final rule under Executive Order 12866,
the Regulatory Flexibility Act (5 U.S.C.
601–612), the Unfunded Mandates
Reform Act of 1995 (Public Law 104–4),
and the Congressional Review Act.
Executive Order 12866 directs agencies
to assess all costs and benefits of
available regulatory alternatives and,
when regulation is necessary, to select
regulatory approaches that maximize
net benefits (including potential
economic, environmental, public health
and safety, and other advantages;
distributive impacts; and equity). We
believe that this final rule is consistent
with the regulatory philosophy and
principles identified in the Executive
order. This final rule is considered an
economically significant regulatory
action under the Executive order.
The Regulatory Flexibility Act
requires agencies to analyze regulatory
options that would minimize any
significant impact of a rule on small
entities. We lack the data to certify that
this final rule will not have a significant
economic impact on a substantial
number of small entities. Therefore, we
have prepared a Regulatory Flexibility
Analysis.
Section 202(a) of the Unfunded
Mandates Reform Act of 1995 requires
that agencies prepare a written
statement, which includes an
assessment of anticipated costs and
benefits, before issuing ‘‘any rule that
includes any Federal mandate that may
result in the expenditure by State, local,
and tribal governments, in the aggregate,
or by the private sector, of $100,000,000
or more (adjusted annually for inflation)
in any one year.’’ The current threshold
after adjustment for inflation is $115
million, using the most current (2003)
Implicit Price Deflator for the Gross
Domestic Product. This rule, however,
does not contain such a mandate.
The Congressional Review Act
requires that regulations that have been
identified as being major must be
submitted to Congress before taking
effect. This rule is major under the
Congressional Review Act.
Limitations in the available data
prevent us from estimating
quantitatively the anticipated costs and
benefits to society, so we focus instead
on proxy measures. The costs of this
final rule include the benefits lost by
consumers who would have bought
albuterol MDIs at the current price but
are unwilling or unable to buy them at
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a higher price. The price of albuterol
MDIs will rise because this rule, by
ending the essential-use designation for
albuterol MDIs, will effectively remove
less expensive generic versions of
albuterol MDIs from the market.
Consumers and third-party payers,
including Federal and State
Governments, will spend more for
albuterol MDIs as a result of the price
increase. But this increased spending is
not part of social cost as conventionally
defined, because it represents resources
that are transferred from drug buyers
(consumers and third-party payers) to
drug sellers (drug manufacturers,
wholesalers, pharmacies, etc.). The
benefits of this rule include the value of
improvements in the environment and
public health that may result from
reduced emissions of ODSs (for
example, the reduced future incidence
of skin cancers and cataracts). The
benefits also include improved expected
returns on investments in
environmental technologies and greater
international cooperation to comply
with the Montreal Protocol. As we are
unable to estimate the costs and benefits
in dollar terms, we instead focus on the
cumulative number of albuterol MDIs
that might not be sold and the changes
in CFC emissions as a result of the rule.
As a result of this rule, approximately
96 million to 430 million albuterol CFC
MDIs will be removed from the market,
depending on whether generic albuterol
MDIs become available in 2010 or 2017.
If generic albuterol HFA MDIs enter the
market at the end of 2010 (when one of
the earlier listed patents for albuterol
HFA MDIs expires) then 96 million
albuterol CFC MDIs would have been
sold between the effective date of this
rule (December 31, 2008) and the end of
2010, without the rule. If generic
albuterol HFA MDIs enter the market at
the end of 2017 (when the last listed
patent for albuterol HFA MDIs
expires)12 430 million albuterol CFC
MDIs would otherwise have been sold
between the effective date of this rule,
and December 2017, without the rule.
After generic albuterol HFA MDIs enter
the albuterol MDI market and
competition among albuterol HFA MDI
producers determines the price, there
would be no rationale related to patient
access to albuterol MDIs for maintaining
an essential-use designation for ODSs
for albuterol.
Assuming generic albuterol HFA
MDIs enter the market at the end of
2010, the removal of albuterol CFC
MDIs will eliminate competition from
low-cost generic drugs during the period
between December 2008 and December
2010, thereby raising prices and
increasing spending on albuterol MDIs
by about $2.1 billion, assuming a 3percent discount rate, or $1.7 billion,
assuming a 7-percent discount rate
(present value in 2005).
Assuming generic albuterol HFA
MDIs enter the market at the end of
2017, the removal of albuterol CFC
MDIs will eliminate competition from
low-cost generic drugs during the period
between December 2008 and December
2017, thereby raising prices and
increasing spending on albuterol MDIs
17183
by about $8.3 billion, assuming a 3percent discount rate, or $6.2 billion,
assuming a 7-percent discount rate
(present value in 2005).
Taking into account GSK’s
commitment to provide free samples
and coupons, we estimate that higher
prices due to the elimination of generic
competition will reduce the number of
albuterol MDIs sold by between 300,000
and 900,000 per year. This will induce
U.S. consumers to use between 600,000
and 1.8 million fewer albuterol MDIs
between the removal of albuterol CFC
MDIs on December 31, 2008, and
December 2010, or to use 2.7 million
and 8.1 million fewer albuterol MDIs
during the years between December 31,
2008, and December 2017. These
estimates do not take into account the
GSK and Schering patient assistance
programs designed to provide free or
low cost drugs to low-income patients.
Should generic albuterol MDIs become
available at the end of 2010, consumers
will substitute 96 million albuterol HFA
MDIs for albuterol CFC MDIs between
2008 and December 2010, reducing
atmospheric CFC emissions by 2,400
tons in total. If generic albuterol MDIs
become available at the end of 2017,
substitution of albuterol HFA MDIs for
the 430 million albuterol CFC MDIs that
would have been consumed between
2008 and December 2017 will reduce
atmospheric emissions of CFCs by about
10,800 tons in total. These quantitative
estimates of the effects of this rule are
summarized in tables 1 and 2 of this
document.
TABLE 1.—SUMMARY OF QUANTIFIABLE EFFECTS OF THE FINAL RULE RELATIVE TO HFA PATENT EXPIRATION IN 2010
Number of Affected Albuterol
MDIs (millions)
Increased Expenditures for Albuterol MDIs Present
Value in 2005 (billions)
3–percent discount rate
7–percent discount rate
$2.1
Possible Reduction in
MDI Use (millions)
$1.7
96 million
0.6 to 1.8
Reduced Aggregate
Emissions Related to
Phaseout (metric tons)
2,400
TABLE 2.—SUMMARY OF QUANTIFIABLE EFFECTS OF THE FINAL RULE RELATIVE TO HFA PATENT EXPIRATION IN 2017
Number of CFC Albuterol MDIs
Removed From the Market
Increased Expenditures for Albuterol MDIs Present
Value in 2005 (billions)
3–percent discount rate
7–percent discount rate
$8.3
Possible Reduction in
MDI Use (millions)
$6.2
430 million
While the agency believes that the
benefits of this regulation justify its
costs, we cannot estimate quantitatively
the public health effects of the phaseout.
The decreased use of albuterol MDIs
may adversely affect some patients, but
we lack an ability to characterize such
effects quantitatively. We also are
unable to estimate quantitatively the
reductions in skin cancers, cataracts,
2.7 to 8.1
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10,800
and environmental harm that may result
from the reduction in CFC emissions by
10,800 metric tons during these years.
We state the need for the regulation
and its objective in section V.B of this
12 Since publication of the 2004 proposed rule,
two patents that expire in 2017 have been listed in
the Orange Book for VENTOLIN HFA.
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Reduced Aggregate
Emissions Related to
Phaseout (metric tons)
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document. Section V.C of this document
provides background on CFC depletion
of stratospheric ozone, the Montreal
Protocol, the albuterol MDI market, and
the health conditions that albuterol is
used to treat. We analyze the benefits
and costs of the rule, including effects
on government outlays, in section V.D
of this document. We assess alternative
phaseout dates in section V.E of this
document, and conduct a sensitivity
analysis on entry dates of generic
competition in section V.F of this
document. We present an analysis of the
effects on small business in a regulatory
flexibility analysis in section V.G of this
document. We discuss our conclusions
in section V.H of this document.
B. Need for Regulation and the
Objective of this Rule
This regulation is necessary because
private markets are very unlikely to
preserve levels of stratospheric ozone
sufficient to protect the public health.
Individual users of albuterol MDIs have
no significant private incentive to
switch to non-ozone depleting albuterol
HFA MDIs. In fact, each user would bear
all of the costs and virtually none of the
benefits of such a switch, as the
environmental and health benefits
would tend to be distributed globally
and occur decades in the future. Thus,
the outcome of a private market would
be continued use of the albuterol MDI
available at the lowest price, even if the
social value of reducing emissions were
clearly much greater than the price
premium for non-ozone depleting
albuterol HFA MDIs.
The objective of this final rule is to
reduce atmospheric emissions of ODSs,
specifically CFCs. CFCs and other ODSs
deplete the stratospheric ozone that
protects the Earth from ultraviolet solar
radiation. We are ending the essentialuse designation for ODSs used in
albuterol MDIs because two acceptable
ODS-free albuterol formulations have
been successfully marketed in the
United States for more than 2 years.
Removing this essential-use designation
will comply with obligations under the
Montreal Protocol and the Clean Air
Act, thereby reducing emissions that
deplete stratospheric ozone, while
preserving access to essential drugs by
minimizing adverse effects on affected
patient populations.
C. Background
1. CFCs and Stratospheric Ozone
During the 1970s, scientists became
aware of a relationship between the
level of stratospheric ozone and
industrial use of CFCs. Ozone (O3),
which causes respiratory problems
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when it occurs in elevated
concentrations near the ground, shields
the Earth from potentially harmful solar
radiation when in the stratosphere.
Excessive exposure to solar radiation is
associated with adverse health effects
such as skin cancer and cataracts, as
well as other adverse environmental
effects. Emissions of CFCs and other
ODSs reduce stratospheric ozone
concentrations through a catalytic
reaction, thereby allowing more solar
radiation to reach the Earth’s surface.
Because of this, environmental
scientists from the United States and
other countries advocated ending all
uses of these chemicals.
2. The Montreal Protocol
The international effort to craft a
coordinated response to the global
environmental problem of stratospheric
ozone depletion culminated in the
Montreal Protocol, an international
agreement to regulate and reduce
production of ODSs. The Montreal
Protocol is described in section III.B of
this document. One hundred and
eighty-six countries have now ratified
the Montreal Protocol, and the overall
usage of CFCs has been dramatically
reduced. In 1986, global consumption of
CFCs totaled about 1.1 million metric
tons annually, and by 2000, total annual
consumption had been reduced to fewer
than 0.1 million metric tons (Ref. 5).
This decline amounts to about a 90percent decrease in consumption and is
a key measure of the success of the
Montreal Protocol. Within the United
States, consumption of ODSs, and CFCs
in particular, has fallen sharply—
consumption of CFC–11 and CFC–12 is
about 20 percent of 1990
consumption.13
A relevant aspect of the Montreal
Protocol is that production of CFCs in
any year by any country is banned after
the phase-out date unless the Parties to
the Montreal Protocol agree to designate
the use as ‘‘essential’’ and approve a
quantity of new production for that use.
Each year, each Party nominates the
amount of CFCs needed for each
essential use and provides the reason
why such use is essential. Agreement on
both the essentiality and the amount of
CFCs needed for each nominated use
has been reached by consensus at the
annual Meeting of the Parties.
3. Benefits of the Montreal Protocol
EPA has generated a series of
estimates of the environmental and
public health benefits of the Montreal
13 The ozone depleting potentials of CFC–11 and
CFC–12 are equal. See https://www.epa.gov/ozone/
ods.html.
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Protocol (Ref. 6). The benefits include
reductions of hundreds of millions of
nonfatal skin cancers, 6 million fewer
fatalities due to skin cancer, and 27.5
million cataracts avoided between 1990
and 2165 if the Montreal Protocol were
fully implemented. EPA estimates the
value of these and related benefits to
equal $4.3 trillion in present value
when discounted at 2 percent over the
period of 175 years. This amount is
equivalent to about $6 trillion after
adjusting for inflation between 1990 and
2004. This estimate includes all benefits
of total global ODS emission reductions
expected from the Montreal Protocol
and is based on reductions from a
baseline scenario in which ODS
emissions would continue to grow for
decades but for the Montreal Protocol.
4. Characteristics of COPD
Albuterol MDIs are used to treat
COPD. While there is some overlap
between asthma patients and COPD
patients, COPD encompasses a group of
diseases characterized by relatively
fixed airway obstruction associated with
breathing-related symptoms (for
example, chronic coughing,
expectoration, and wheezing). COPD is
generally associated with cigarette
smoking and is extremely rare in
persons younger than 25.
According to the Centers for Disease
Control (CDC), an estimated 10 million
U.S. adults carried the diagnosis of
COPD in 2000 (Ref. 7). Because the
underlying surveys depend on patientreported diagnoses and many affected
individuals have not been formally
diagnosed, the National Health
Interview Survey (NHIS) suggests that as
many as 24 million Americans may
actually be affected by the disease. The
proportion of the U.S. population with
mild or moderate COPD has declined
over the last quarter century, although
the rate of COPD in females increased
relative to males between 1980 and
2000. The most effective intervention in
modifying the course of COPD is
smoking cessation. Symptoms such as
coughing, wheezing, and sputum
production are treated with medication.
5. Characteristics of Asthma
Albuterol MDIs are also used to treat
asthma, a chronic respiratory disease
characterized by episodes or attacks of
bronchospasm on top of chronic airway
inflammation. These attacks can vary
from mild to life-threatening and
involve shortness of breath, wheezing,
cough, or a combination of symptoms.
Many factors, including allergens,
exercise, viral infections, and others,
may trigger an asthma attack.
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According to the 2002 NHIS,
approximately 20 million patients in the
United States reported they had asthma
(Ref. 8). The prevalence of asthma
decreases with age, with the prevalence
being 92 per 1,000 children ages 0–17
(6.1 million children) compared to 83
per 1,000 among adults ages 18–44 (7.4
million), 71 per 1,000 among adults ages
45–64 (4.6 million), and 59 per 1,000
among adults age 65 and over (1.9
million) (Ref. 8).
The NHIS reported that during 2002,
about 12 million patients reported
experiencing an asthma attack during
the previous year (Ref. 8, table 10).
According to the National Ambulatory
Medical Care Survey, in 2001 there were
1.3 million outpatient asthma visits to
physician offices and hospital clinics
and 1.9 million emergency room visits
(Ref. 8, table 16). According to the
National Center for Health Statistics,
there were 454,000 hospital admissions
for asthma in 2001 (Ref. 8, table 12), and
4,269 mortalities (Ref. 8, table 1). The
estimated direct medical cost of asthma
(hospital services, physician care, and
medications) was $9.4 billion (Ref. 8,
table 17).
While the prevalence of asthma has
been increasing in recent years, CDC
reports that the incidence of asthma (or
the rate of new diagnoses) has remained
fairly constant since 1997 (Ref. 9). NonHispanic blacks, children under 17
years old, and females have higher
incidence rates than the general
population and also have higher attack
prevalence. The CDC notes that
although numeric increases have
occurred in the numbers and rates of
physician office visits, hospital
outpatient visits, and emergency room
visits, these increases are accounted for
by the increase in prevalence. This
phenomenon might indicate early
successes by asthma intervention
programs that include access to
medications.
6. Current U.S. Albuterol MDI Market
Albuterol is the preferred, and most
commonly prescribed, short-acting relief
medication for asthma and is also
important in the treatment of COPD. For
reasons of cost, convenience, and
effectiveness, MDIs are the preferred,
and most commonly prescribed, route of
administration for albuterol.
We estimate that, in the first two
quarters of 2004, U.S. consumers bought
about 22.7 million generic albuterol
MDIs through retail channels. This
17185
estimate is based on our analysis of IMS
data (Ref. 10). Total consumption of
albuterol MDIs has fluctuated around
approximately 50 million MDIs
annually over the last several years (Ref.
11). Based on retail sales, we estimate
approximately 96 percent of albuterol
MDIs sold were generic MDIs or
branded MDIs relabeled and sold as
generic (Ref. 10) (all containing CFCs),
suggesting a total market for generic
albuterol MDIs of approximately 48
million MDIs.
IMS provides data on average retail
prices for marketers of albuterol MDIs
for each of three payer types (cash
customers, Medicaid recipients, and
patients covered by other third-party
payers), and the proportion of each
marketer’s sales to each payer type. As
described in table 3 of this document,
the weighted average (across all payer
types) of retail prescription price for
generic albuterol CFC MDIs during the
first half of 2004 was about $13.50 per
MDI, the weighted average retail
prescription price for branded versions
of albuterol CFC MDIs was about $38.90
per MDI, and the weighted average retail
prescription price for albuterol HFA
MDIs was about $39.50 per MDI.
TABLE 3.—SUMMARY OF CURRENT RETAIL PRICES FOR ALBUTEROL CFC AND HFA MDIS1
Albuterol CFC MDI Prices
Payer Type
Generic Market
Share (percent)
Generics
Albuterol HFA
MDI Prices
Weighted Average
Branded Products
Price Premium: HFA MDI Price
Relative to Generic Price
Weighted
Average
Dollars per
MDI
Estimated
Units
(millions)2
Percent
Cash
97.0
$19.13
$45.90
$46.32
$27.19
142
5.2
Medicaid3
97.3
$15.61
$37.10
$41.14
$25.53
164
8.7
Third-party
95.4
$12.03
$37.75
$38.60
$26.57
221
31.4
Total Market
96.0
$13.53
$38.87
$39.47
$25.94
192
45.3
1 Source:
(Ref. 10)
estimates reflect retail sales of generic albuterol MDIs, excluding sales at Internet and mail-order pharmacies.
3 Medicaid prices do not reflect rebates given directly to States by drug companies.
2 These
We estimate albuterol CFC MDIs are
responsible for roughly 1,200 metric
tons of CFC emissions annually. Each
albuterol CFC MDI contains about 21
grams of CFCs.14 The estimated 48
million albuterol CFC MDIs sold
annually therefore contain about 1,000
metric tons of CFCs. Adding an
additional 20 percent to account for use
in production, unusable batches, and
other factors (as manufacturers typically
14 CFC MDI manufacturers disclose the CFC
content of their MDIs to EPA as part of the process
of requesting essential-use allocations; however, the
CFC content of any particular MDI is considered
confidential business information and may not be
disclosed without the manufacturer’s consent.
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do in the process of requesting essentialuse allocations of CFCs for
manufacturing) brings the total
emissions to about 1,200 metric tons. To
the extent that CFCs used in the
production process are reclaimed and
destroyed, this estimate overstates
expected emissions reductions.
D. Benefits and Costs of the Final Rule
The benefits and costs of a
government action are conventionally
estimated relative to a baseline scenario
that in this case is a description of the
production, use, and access to albuterol
MDIs in the absence of this rule. In this
section we first describe such a baseline
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and then present our analysis of the
benefits of the final rule. Next we turn
to the costs of the rule and to an analysis
of the effects on the Medicare and
Medicaid programs.
1. Baseline Conditions
We developed baseline estimates of
future conditions to estimate the
economic effects of prohibiting
marketing of albuterol CFC MDIs after
December 31, 2008. It is standard
practice to use, as a baseline, the state
of the world absent the rulemaking in
question, or where this implements a
legislative requirement, the world
absent the statute.
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For the baseline in this analysis, we
assume that access to CFC propellants,
and therefore to albuterol CFC MDIs,
continues indefinitely. This assumption
focuses our analysis on the impact of
removing less expensive generic
albuterol CFC MDIs from the market,
until the date that competition from
generic albuterol HFA MDIs lowers
prices. As stated previously in this
document, we have identified listed
patents on the HFA technology with
expiration dates of 2009, 2010, 2014,
2015, and December 2017. In
performing our analysis, we make two
different sets of assumptions. First, we
perform an evaluation based on the
assumption that generic versions of
albuterol HFA MDIS will come on the
market after patents expire in 2010.
Second, we perform an evaluation based
on the assumption that generic albuterol
HFA MDIs will come on the market after
the last listed patent expires in 2017.
Without this rule, U.S. commitments to
the Montreal Protocol could limit future
access to CFCs and, therefore,
inexpensive generic albuterol CFC
MDIs. This observation suggests an
alternative baseline where Parties to the
Montreal Protocol stop approving
nominations for the use of CFCs in
albuterol MDIs at a particular date.
While the Parties could theoretically
take such action for calendar year 2008,
it would be speculative on our part to
assume that they would take such action
for that specific date or any other. As a
result, we do not pursue a quantitative
analysis with such alternative baselines.
Throughout our analysis, we assume
that future prices for albuterol CFC and
HFA MDIs do not change from current
levels. This assumption overstates
prices to the extent that competition
from new entrants reduces future
albuterol HFA MDI prices. We assume,
however, that competition among the
albuterol HFA MDI manufacturers will
leave prices roughly stable and note that
one manufacturer has pledged to freeze
prices until at least the beginning of
2008.
Throughout this analysis, we assume
that sufficient inventories of CFCs are
available to meet demand up to
December 31, 2008, and that albuterol
HFA MDIs available on and after
December 31, 2008, will be adequate to
meet demand. In calculating the present
value of increased expenditures, we
discount expected future increases in
expenditures by both 7 percent and 3
percent annually for each year after
2005.
2. Benefits of the Final Rule
The benefits of the final rule include
environmental and public health
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improvements from protecting
stratospheric ozone by reducing CFC
emissions. Benefits also include
expectations of increased returns on
investments in environmentally friendly
technology, reduced risk of unexpected
disruption of supply of albuterol MDIs,
and continued international cooperation
to comply with the spirit of the
Montreal Protocol, thereby potentially
reducing future emissions of ODS
throughout the world.
a. Reduced CFC emissions. Market
withdrawal of albuterol CFC MDIs will
reduce emissions by approximately
1,200 metric tons of CFCs per year. We
have reviewed current CFC inventories
and believe currently available
quantities are likely to be sufficient to
supply the albuterol CFC MDI market
for approximately 12 months.
Nominations for new CFC production
are generally approved by the Parties to
the Montreal Protocol 2 years in
advance. The final rule bans marketing
of albuterol CFCs after December 31,
2008. There is considerable uncertainty
with respect to the amount of
inventories that will be available in the
future, but we anticipate that utilization
of existing inventory will allow the
United States to avoid requesting a 2008
exemption, or to significantly reduce the
amount requested. Therefore, we
estimate the final regulation will reduce
CFC use by 1,200 metric tons per year
after the end of 2008, a benefit that will
continue beyond the evaluation period.
In an evaluation of its program to
administer the Clean Air Act, EPA has
estimated that the benefits of controlling
ODSs under the Montreal Protocol are
the equivalent of $6 trillion in current
dollars. However, EPA’s report provides
no information on the total tons of
reduced emissions or the incremental
value per ton of reduced emissions. EPA
derived its benefits estimates from a
baseline that included continued
increases in emissions in the absence of
the Montreal Protocol. We have
searched for authoritative scientific
research that quantifies the marginal
economic benefit of incremental
emission reductions under the Montreal
Protocol, but have found none
conducted during the last 10 years. As
a result, we are unable to quantify the
environmental and human health
benefits of reduced ODS emissions from
this regulation. Such benefits, in any
event, were apparently included in
EPA’s earlier estimate of benefits.
As a share of total global emissions,
the reduction associated with the
elimination of albuterol CFC MDIs
represents only a small fraction of 1
percent. Current allocations of CFCs for
albuterol MDIs account for about 0.1
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percent of the total 1986 global
consumption of CFCs (Ref. 5).
Furthermore, current U.S. CFC
emissions from MDIs represent a much
smaller, but unknown share of the total
emissions reduction associated with
EPA’s estimate of $6 trillion in benefits
because that estimate reflects future
emissions growth that has not occurred.
Although the direct benefits of this
regulation are small relative to the
overall benefits of the Montreal
Protocol, we believe the reduced
exposure to UV–B radiation that will
result from these reduced emissions will
help protect public health. However, we
are unable to assess or quantify specific
reductions in future skin cancers and
cataracts associated with these reduced
emissions.
b. Returns on investment for
environmental technology. Establishing
a phaseout date prior to the expiration
of patents on albuterol HFA MDIs not
only rewards the developers of the HFA
technology, but also serves as a signal to
other potential developers of ozone-safe
technologies. In particular, such a
phaseout date would preserve
expectations that the government
protects incentives to research and
develop ozone-safe technologies.
Newly developed technologies to
avoid ODS emissions have resulted in
more environmentally ‘‘friendly’’ air
conditioners, refrigerants, solvents, and
propellants, but only after significant
investments. Several manufacturers
have claimed development costs that
total between $250 million and $400
million to develop HFA MDIs and new
propellant-free devices for the global
market (Ref. 11).
These investments have resulted in
several innovative products in addition
to albuterol HFA MDIs. For example,
breath-activated delivery systems, dose
counters, dry powder inhalers, and
mini-nebulizers have also been
successfully marketed. This technology
could also affect other drugs used for
the treatment of asthma and COPD
because of the likelihood that,
eventually, CFCs will not be available
for any drug use. To compare the effect
of alternative phaseout dates on these
returns to investment, we compare the
ratio of the present value of increased
revenues expected to accrue to
innovative firms from a December 31,
2008, phaseout date and the present
value of the future revenue stream of
alternative phaseout dates, using both 7
percent and 3 percent annual discount
rates. This ratio can provide a basis for
relative assessments of the returns to
investors for alternative phaseout dates.
We present estimates of this ratio in a
later discussion of alternatives.
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Returns on investment are very
sensitive to the current market prices in
the United States. The pharmaceutical
markets of other Parties to the Montreal
Protocol operate with implicit or
explicit price controls. These controls
have depressed the potential returns to
technological innovation. For example,
in 2003, the ex-manufacturer prices (the
prices of the drugs when they leave the
production facilities) of the albuterol
HFA MDIs most widely sold in France,
Germany, and the United Kingdom
ranged between roughly $3.30 and
$6.40; in the United States these prices
were in the neighborhood of $29 to
$30.15
c. International cooperation. The
advantages of selecting a date that
maintains international cooperation are
substantial because the Montreal
Protocol, like most international
environmental treaties, relies primarily
on a system of national selfenforcement, although it also includes a
mechanism to address noncompliance.
In addition, compliance with its
directives is subject to differences in
national implementation procedures.
Economically less-developed nations,
which have slower phaseout schedules
than developed nations, have
emphasized that progress in eliminating
ODSs in developing nations is affected
by observed progress by developed
nations, such as the United States. If we
had adopted a later phaseout date, other
Parties could attempt to delay their own
control measures.
3. Costs of the Final Rule
The effects of the final rule include
increased spending for needed albuterol
medication. The social costs of the final
rule include the lost benefits of
albuterol use that may result from the
price increase. We discuss the increased
spending and then the social costs in
turn.
In the absence of this regulation, we
would expect 430 million generic
albuterol MDIs to be sold during the
entire period between December 31,
2008, and December 2017, when the last
patent listed in the Orange Book for an
albuterol HFA MDI will expire. Of
these, 96 million would be sold before
2010, an earlier date when generics
might arrive. These figures are based on
the estimate that approximately 96
percent (Ref. 10) of the approximately
50 million albuterol MDIs sold per year
(Ref. 11) are generic, suggesting that
15 Analysis completed by FDA based on
information provided by IMS Health, IMS
MIDASTM, United States, Germany, France and the
United Kingdom, 2003.
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about 48 million generic albuterol MDIs
are sold annually.
With this regulation, patients who
would have used generic albuterol CFC
MDIs are expected generally to switch to
albuterol HFA MDIs. We estimated in
section V.C.6 of this document a
weighted average price difference at
retail pharmacies (across all payer
types) of about $26 between these
products. If this difference can be
applied to future transactions involving
48 million generic albuterol MDIs
annually (less the 2 million free samples
promised by GSK and decreased
demand of 300,000 to 900,000 MDIs
resulting from price increases—as
calculated later in this analysis), then
increased expenditures from consumers
and private or public third-party payers
would reach about $1.2 billion per year.
This estimate is based, in part, on
estimated increases in Medicaid prices
that do not take into account rebates
given directly to States by drug
companies. To the extent that such
rebates are larger for branded albuterol
MDIs, which are more expensive, the
increased expenditures are
overestimated.
The present value of these increased
expenditures in 2005 is about $6.2
billion using a 7 percent annual
discount rate and $8.3 billion using a 3
percent annual discount rate. In
estimating this increased spending, we
focus on the period between December
31, 2008, and December 2017, when the
last patent listed in the Orange Book
will expire. We also ignore the fact that
after a VENTOLIN HFA MDI is first
used, it expires much more quickly than
a PROVENTIL HFA MDI or albuterol
CFC MDIs. Although this change in the
usable life of some MDIs may affect the
quantity consumed, we are unable to
quantify the magnitude of such an
effect.
These increased expenditures
represent primarily transfers from
consumers and third-party payers,
including State and Federal
Governments, to branded
pharmaceutical manufacturers; they are,
therefore, not net costs to society.
Because these estimates are based on
average retail prices, they include
additional spending that will go to
parties other than innovative
manufacturers, such as distributors and
retail pharmacies. We estimate that
about 11 percent of this increase—about
$130 million annually—may be paid by
uninsured customers ($130 million)
(Ref. 10). We derive these estimates
assuming increased spending is the
product of the number of albuterol MDIs
sold for cash and the difference between
the average price for generic albuterol
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17187
MDIs and the simple mean of the prices
for albuterol HFA MDIs. We estimate
that 5 million generic albuterol MDIs are
sold to uninsured patients annually and
that retail cash prices for albuterol MDIs
will rise by about $27 per MDI (details
of these estimates follow later in this
section of the document.) Taking in to
account savings from coupons and free
samples, uninsured albuterol users
would therefore spend about $120
million more each year.16
According to MEPS, private nongroup
and uninsured individuals used, on
average, 3.3 albuterol prescriptions per
year (Ref. 12). Based on IMS data, we
estimate the average albuterol
prescription is for 1.2 MDIs (Ref. 10).
The average uninsured, or
underinsured, albuterol user would
therefore use about 4 MDIs/year. Based
on these figures, we estimate that a
population of uninsured albuterol users
of about 1.25 million17 would pay, on
average, $95 more per year for
albuterol.18 This estimate does not take
in to account the reduced use of
albuterol MDIs among the uninsured
that may result from higher prices or the
extent to which quicker expiration of
some HFA albuterol MDIs, relative to
CFC MDIs, will increase albuterol MDI
demand and expenditures. In the future,
some fraction of these cash payers will
likely be covered by Medicare (Ref. 10).
We expect price increases resulting
from market withdrawal of less
expensive generic albuterol MDIs will
reduce albuterol use by several hundred
thousand MDIs annually (as explained
below), although there is substantial
uncertainty about these estimates. The
impact of this reduction on health
outcomes is too uncertain to quantify
given available data. Some patients,
however, respond to price increases for
medications for chronic conditions in
ways that may adversely affect their
health. A recent article found that:
***copayment increases led to increased
use of emergency department visits and
hospital days for the sentinel conditions of
diabetes, asthma, and gastric acid disorder:
predicted annual emergency department
visits increased by 17 percent and hospital
days by 10 percent when copayments
doubled * * *.
However, the article proceeds to
characterize these results as ‘‘not
definitive.’’ (Ref. 4) This finding
16 (5 million MDIs - 300,000 free sample MDIs) x
($25/MDI) - (450,000 coupons) x ($10) =
$117,500,000. Here, we assume coupons and free
samples reach uninsured albuterol users in
proportion to estimates of the uninsured fraction of
the overall population (15 percent).
17 (5 million MDIs) / 4 MDIs per uninsured user
= 1.25 million uninsured users.
18 ($117,500,000) / (1.25 million uninsured users)
= $94.00 per uninsured user.
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suggests that increased prices for
albuterol may lead to some adverse
public health effects among the
populations that would face increased
prices. This evidence is insufficient to
permit us to quantify any adverse public
health effects. We use expected
reductions in albuterol MDI purchases
as a surrogate measure of the impact.
Our approach to estimating the effects
of the rule assumes that the primary
effect of an elimination of albuterol CFC
MDIs from the market would be an
increase in the average price of albuterol
MDIs. Given the price increase expected
from the elimination of generics and
existing estimates of market responses
to price increases, we have projected
how the quantity of albuterol MDIs
consumed may decline as a result of this
rule. As in the 2004 proposed rule, we
assume that the reduction in the use of
albuterol MDIs attributable to this rule
can be calculated as the product of the
sensitivity of use with respect to the
price increase, the baseline use of
albuterol MDIs among price—sensitive
patients, and the price increase in
percentage terms. We discuss these in
turn.
We have no information about how
consumers react to increases in the price
of MDIs per se or to increases in the
price of ‘‘rescue’’ types of MDIs, such as
albuterol, in particular. Economists have
researched the response of consumers to
higher insurance copayments for drugs
in general. The results appear to
indicate price elasticities in the range of
-.1 to -.2, meaning that a 10 percent
increase in insurance copayments
appears to lead to a reduction in the
number of prescriptions of between 1
and 2 percent (Ref. 13). Some
researchers have reported estimates of
price elasticities as great as -.3 for
asthma drugs (Ref. 4), but the authors
report that there is wide variance based
on the availability of over-the-counter
substitutes. For example, for drugs with
no over-the-counter substitute—a set
that presumably includes albuterol—the
reported price elasticity was -.15.19 We
have used price elasticities of between
-.05 and -.15 to estimate the potential
effect of price increases on demand. We
recognize that elasticity estimates
derived from insurance copayment
studies may not be specifically
applicable to the effects of average retail
19 Some patients may view PRIMATENE, an
epinephrine MDI available over the counter, as a
substitute for prescription albuterol MDIs. If this
view is widespread, the decline in albuterol MDI
use may be greater than that estimated here.
However, insofar as PRIMATENE is effective in
treating asthma, the adverse health effects would
not be greater. We lack data to evaluate patients’
willingness to substitute PRIMATENE for albuterol
MDIs.
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price increases on uninsured patients’
demand for albuterol.
To derive an estimate of the number
of albuterol MDIs not sold as a result of
this rule, we need an estimate of the
baseline use of albuterol MDI sales by
price-sensitive consumers. From data on
retail sales by payer type from the first
half of 2004, we find about 5 million
generic albuterol MDIs are sold to
uninsured patients annually. This
estimate includes sales to people over
age 65 not covered by Medicaid who we
expect will be covered by Medicare in
the future, but it excludes mail order
and Internet sales and sales through
hospitals and nursing homes.
Alternatively, if uninsured individuals
under age 65 use albuterol MDIs in
proportion to their share of the
population (roughly 15 percent) (Ref.
14), then roughly 7 million of 46 million
generic albuterol MDIs would be sold to
the uninsured (46 million = 48 million
generic albuterol MDIs - 2 million free
samples).
Finally, to estimate the price increase
from this rule, we first assess IMS data,
which indicate that cash payers paid, on
average, $19.10 for generic albuterol
MDIs and $46.30 for albuterol HFA
MDIs, a difference that would suggest a
price increase of $27.20 per MDI, or 142
percent. However, alternative
assumptions about the future market
share of different albuterol HFA MDI
manufacturers would result in a smaller
price increase—130 percent. These
estimated price differences faced by
cash payers are only a proxy for price
differences faced by uninsured patients,
because some people with insurance
may pay cash, and some uninsured
patients may buy drugs from mail-order
and Internet pharmacies.
We believe that estimates of the recent
price premium for albuterol HFA MDIs
may be a reasonable approximation of
the price increase anticipated from this
rule, at least to the extent that patent
protection and the more costly criteria
for FDA approval of albuterol HFA
MDIs substantially curb competition. At
least one listed patent is expected to
expire in December 2017. While
increased competition from new
patented albuterol HFA MDIs may
reduce future albuterol HFA MDI prices,
such reduction may be small until
generic albuterol MDIs are reintroduced
into the market. Apart from any patents,
marketing of new albuterol HFA MDIs
before the patents expire requires FDA
approval of a completed NDA. After the
patents expire, FDA can approve generic
albuterol HFA MDIs by the abbreviated
new drug application (ANDA) process.
The NDA process is more complicated,
expensive, and time consuming than the
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ANDA process by which new generic
drugs are brought to market. This NDA
requirement constitutes a barrier to
entry in the market that will tend to
further limit competition until the
patents expire as compared to markets
where generic drugs can be marketed.
Finally, as noted previously in this
document, one manufacturer has also
announced a voluntary price freeze on
its albuterol HFA MDI until 2008.
We combine different measures of
price elasticities (-.05 to -.15), the size
of the uninsured generic albuterol MDI
market (5 to 7 million MDIs), and
estimated price increases (130 percent
to 140 percent) to estimate the impact of
price increases on use. For example,
assuming a price elasticity of .15 and 6
million generic albuterol MDIs sold to
the uninsured annually, a 130 percent
price increase would reduce demand for
albuterol MDIs from the uninsured by
about 1.2 million MDIs annually (6
million x -.15 elasticity x 130 percent
price increase = 1,200,000 MDIs). These
preliminary estimates do not take into
account offsetting increases in
consumption from changes in
promotional efforts already announced
by GSK. We also note that the elasticity
estimates are based on relatively small
price changes and may not be applicable
to large price changes such as these.
Manufacturers have announced
programs to distribute free samples and
coupons to mitigate any adverse effect
of higher prices on utilization. For
example, GSK has committed to provide
2 million albuterol HFA MDIs each year
to physician offices in expectation that
they would be distributed to patients in
need (2003P–0029/CR1, p. 7). In
addition, GSK has committed to
annually providing 3 million coupons
worth $10 each in rebates for
VENTOLIN HFA to any patient. Both
GSK and Schering currently operate
outreach programs that assist patients to
obtain needed medications, but we are
unable to assess how many albuterol
MDI users are currently helped by these
programs or how many more would be
helped in the future.
Free samples and coupons help
mitigate adverse impacts on uninsured
patients only to the extent that they are
distributed to physicians and other
health care professionals who then give
them to uninsured individuals.20 To
assess how free samples and coupons
might affect albuterol MDI use, we
conducted a thorough review of the
relevant peer-reviewed literature and
20 We found no information addressing how
pharmaceutical companies distribute free samples
among physicians and clinics, but assume that GSK
will not systematically channel free samples away
from low-income areas.
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found two pertinent articles. One found
that, while 54 percent of the free
samples were actually distributed to
patients, only 9 percent of the patients
who received free samples were
uninsured (Ref. 15). These data suggest
that 4.8 percent of the free samples were
actually distributed to uninsured
patients. Assuming this estimate is
applicable to the albuterol HFA MDIs
distributed by the GSK program, then
about 96,000 albuterol HFA MDIs per
year would reach the uninsured. The
second article estimated that 71 percent
of free samples were given to patients
(Ref. 16). As an upper bound, assuming
all samples are distributed to patients
and that the uninsured receive them in
proportion to their share of the
population, approximately 300,000
MDIs (15 percent of 2 million) would
reach the uninsured each year.
We expect coupons will do relatively
little to improve access to albuterol
among the uninsured. If 150,000 (5
percent (Ref. 15)) to 450,000 (15
percent) of the 3 million coupons reach
uninsured patients each year and 100
percent of them are redeemed, this
would increase albuterol MDI
consumption by roughly 2,000 to 15,000
MDIs per year, based on the range of
price elasticities considered.
Taking into account the offsetting
effect of free samples and coupons, we
focus on a range of 300,000 to 900,000
fewer albuterol MDIs sold each year as
a result of increased prices stemming
from removal of generic albuterol MDIs
from the market. This assessment does
not take into account Schering’s and
GSK’s patient assistance programs
designed to provide free or low cost
drugs to low-income patients as we are
unable to assess how many albuterol
MDI users are currently helped by these
programs or how many more would be
helped in the future. Over the course of
the evaluation period, this would equal
between 2.7 million and 8.1 million
fewer albuterol MDIs sold. We recognize
that due to varying measures of the size
of the generic albuterol MDI market for
the uninsured, uncertainty about the
magnitude of price increases,
consumers’ response, and the impact of
free samples and coupons, and other
factors, the true impact of the rule could
fall outside this range.
4. Effects on Medicare and Medicaid
In order to apportion the possible
spending increases described previously
in this document to the Medicaid and
Medicare programs, FDA and the
Centers for Medicare & Medicaid
Services (CMS) have analyzed
utilization data related to Medicaid and
Medicare, as well as Medicaid program
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spending data. As explained in this
section of the document, these data
suggest that, were this rule in effect in
2003, Medicaid spending (including
spending by States) would have
increased by approximately $100
million for that year. In addition (based
on 2001 utilization and 2004 prices), it
would have increased drug spending on
Medicare beneficiaries by roughly $240
million, although this estimate includes
copayments and coinsurance paid by
individuals and may be too low because
the estimate does not take into account
increases in utilization associated with
the increase in insurance coverage.
These data yield the very rough estimate
that the rule would increase Medicare
and Medicaid spending by $340 million
annually relative to a situation where
access to generic albuterol CFC MDIs
continued.
a. Medicaid. Medicaid spending on
albuterol MDIs would have been higher
by roughly $100 million in 2003—after
taking into account rebates from drug
companies—if albuterol CFC MDIs were
not available. CMS estimates that 58
percent of this amount would be paid by
the Federal Government and 42 percent
by States.
Deriving this cost estimate required
making some adjustments to available
data. Our point of departure is the State
Drug Utilization Data, available at http:/
/www.cms.hhs.gov/medicaid/drugs/
drug5.asp for 2003. These data on
utilization and spending on drugs paid
for by the Medicaid program suggest
that State reimbursements under
Medicaid would have been
approximately $127 million higher in
2003 if no albuterol CFC MDIs were
available (that is, if only albuterol HFA
MDIs were available). This estimate
assumes substitutes for all albuterol CFC
MDIs were purchased at the weighted
average price of albuterol HFA MDIs.
However, it does not take into account
the effect of the rebates from drug
companies to States and the Federal
Government. CMS estimates that
Medicaid program rebates constitute
roughly 20 percent of gross spending on
prescription drugs under the Medicaid
program, suggesting that Medicaid
spending on albuterol MDIs after rebates
would have been roughly $100 million
higher in 2003 if albuterol CFC MDIs
were not available. It is important to
note that this is a rough estimate, as
rebates for a specific drug may differ
from the 20 percent estimate.
Incomplete data for 2004 suggest that
comparable estimates for 2004 are
higher but we believe that these are not
reliable because of the incompleteness
of the data.
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17189
b. Medicare. Our analysis of the
impacts of this rule on Medicare
addresses: (1) The total utilization of
albuterol MDIs, (2) the likely price
increase, and (3) the aggregate spending
increase.
CMS estimates that
noninstitutionalized Medicare
beneficiaries not eligible for Medicaid
drug coverage filled about 8 million
prescriptions for albuterol MDIs
(including VENTOLIN and
PROVENTIL) in 2001, based on the
Medicare Current Beneficiary Survey
(MCBS) and with an adjustment for
under-reporting for aggregate analysis
purposes. As noted in this section of the
document, this estimate is based on
Medicare beneficiaries’ self-reported
outpatient prescription drug utilization,
including prescriptions filled at both
retail and mail order pharmacies. In
addition, the adjustment for
underreporting is normally used for
aggregate use or spending data in MCBS
and may not necessarily reflect actual
underreporting for albuterol.
This analysis used data from the 2001
MCBS, a continuous, multipurpose
survey of a nationally representative
sample of Medicare beneficiaries. The
survey is focused on health care use,
cost, and sources of payment. No ‘‘paid
claims’’ data on use of albuterol MDIs
exist because Medicare will pay for
albuterol MDIs only after the
implementation of the new Medicare
outpatient prescription drug benefit in
January 2006. MCBS is the largest
nationally representative set of data
available on prescription drug
utilization and spending by Medicare
beneficiaries. The MCBS data have been
used by both CMS’s Office of the
Actuary and the Congressional Budget
Office to prepare estimates related to the
new Medicare prescription drug benefit.
However, because the data are selfreported, there are considerable
limitations, most notably
underreporting. CMS has studied the
underreporting in the survey and has
developed methods to adjust the data.
For purposes of the estimates done for
the Medicare drug benefit, the data on
drug spending are analyzed in the
aggregate (that is, for large collections of
drugs). Estimates of individual drug
product utilization and spending,
however, may be even more vulnerable
to the limitations inherent in selfreported utilization data.
A reliable assessment of impacts must
avoid double counting of people who
are eligible for both Medicaid and
Medicare. With the implementation of
the new Medicare prescription drug
benefit, payment for outpatient
prescription drugs on behalf of
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Medicare beneficiaries who are also
eligible for prescription drug benefits
under Medicaid will be moved from the
Medicaid program to the Medicare
program. For purposes of this analysis,
this population of dually eligible
beneficiaries (that is, Medicare
beneficiaries also eligible for fullbenefits under Medicaid) is excluded
from the analysis of the MCBS data,
since their albuterol MDI utilization is
captured within the Medicaid data.
Approximately half of total Medicaid
prescription drug spending is for this
dually eligible population. However, the
proportion will vary based on the type
of drug involved. It is worth noting that
albuterol MDIs are used to treat asthma
in both the aged and disabled in the
Medicare/Medicaid dually eligible
population, as well as to treat asthma in
children, who make up a large share of
Medicaid beneficiaries.
For purposes of this analysis, we
assess only data for the time periods for
which data are available and we do not
make projections for future years. As
was noted in the impact analysis for the
proposed rule on the Medicare
prescription drug benefit (69 FR 46632,
August 3, 2004), there is considerable
uncertainty in making estimates when
there is no program experience from
prior years. This uncertainty is
exacerbated in the context of making
estimates related to a particular drug.
For example, in the context of preparing
aggregate estimates for the Medicare
drug benefit, CMS makes assumptions
about how increased coverage induces
greater utilization and, based on the
National Health Expenditures, projects
growth in per capita drug spending. But
making such calculations for a specific
individual drug would be difficult and
not likely reliable. Furthermore, in the
case of albuterol MDIs, the drug is
subject to large annual fluctuations in
demand per user and size of population
using the drug due to the nature of the
conditions being treated, such as asthma
where acute episodes may vary by
environmental factors (for example,
allergies), prevalence of infectious
diseases (for example, colds), and
seasonal weather conditions (for
example, temperature-related bronchial
conditions). In addition, analyzing the
effect on Medicare of a change related
to one drug is further complicated, for
example, by the need to consider the
interactions with beneficiary costsharing in the context of the Medicare
drug benefit design and the availability
of additional low-income subsidies for
certain populations. Also, the
introduction of an albuterol HFA MDI
from IVAX is expected to increase
competition in the market to some
extent, potentially dampening
anticipated price increases in part. Our
estimates, therefore, apply only to past
years.
We believe that prices paid by private
insurers offer a potentially reasonable
approximation of prices negotiated in
the context of a privately administered
risk-based insurance program such as
the new Medicare Part D drug plans.
Using proprietary data from IMS Health,
we determined that prices for patients
with third-party insurance were on
average about $30 more per prescription
for albuterol HFA MDIs than for
albuterol CFC MDIs, according to IMS’s
National Prescription Audit for the first
half of 2004 (Ref. 10). This price
estimate reflects transactions in U.S.
retail pharmacies, excluding Internet
and mail-order sales. It also reflects both
payments by insurers and copayments
or coinsurance payments by patients.
We calculate the average price per
prescription for the albuterol HFA MDIs
and the albuterol CFC MDIs,
respectively, as the weighted average of
the price per prescription of different
firms’ products, where the weights are
the firms’ shares of the total albuterol
MDIs sold. Price differences per
prescription are larger than price
differences per MDI, because some
prescriptions are for more than one
MDI.
Given this estimate of the price
difference that would have existed
without CFC albuterol MDIs, spending
by, and on behalf of, Medicare
beneficiaries without Medicaid drug
coverage could have been roughly $240
million more in order to fill the 8
million prescriptions estimated to have
been filled in 2001 (based on the MCBS
data). This estimate is quite
approximate because it relies on an
estimate of albuterol MDI prescriptions
from 2001 and estimates of prescription
price differences from the first half of
2004. In addition, albuterol MDI use
may grow as the Medicare drug benefit
reduces the cost to individuals of using
albuterol MDIs.
E. Alternative Phaseout Dates
In developing this rule, we considered
removing the essential-use designation
for ODSs in albuterol MDIs for different
dates between 12 months after issuance
of a final rule and December 31, 2009.
As shown previously in this document,
earlier removal would increase
consumer expenditures while increasing
environmental benefits. A later date
would reduce the potential health effect
from reduced access, but also reduce the
environmental benefit and potentially
put at risk international cooperation. We
also considered and rejected small
business exemptions as inconsistent
with international commitments.
Table 4 of this document shows the
effects of selecting December 31, 2005,
as the effective date, and Table 5 of this
document shows the effects if we had
selected December 31, 2009 (assuming
continued availability of CFCs).
TABLE 4.—EFFECTS OF PHASEOUT AS OF DECEMBER 31, 2005
Increased Expenditures for Albuterol
MDIs Present Value in 2005 (billions)
Number of
Affected of
Albuterol MDIs
(millions)
3-percent
discount rate
576
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7-percent
discount rate
$11.6
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$9.3
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Possible
Reduction in
MDI Use
(millions)
Reduced Aggregate
CFC Emissions
Related to Phaseout
(metric tons)
3.6 to 9.8
Fmt 4701
Sfmt 4700
Relative Return on Investment to New
Technology (return for 12/31/08
phaseout = 1)
3-percent
discount rate
14,400
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04APR3
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discount rate
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TABLE 5.—EFFECTS OF PHASEOUT AS OF DECEMBER 31, 2009
Increased Expenditures for Albuterol
MDIs Present Value in 2005 (billions)
Number of
Affected
Albuterol MDIs
(millions)
3-percent
discount rate
384
7-percent
discount rate
$7.3
$5.3
F. Sensitivity Analyses
We have conducted a sensitivity
analysis to address how key sources of
Possible
Reduction in
Albuterol MDI
Use (millions)
Reduced Aggregate
CFC Emissions
Related to Phaseout
(metric tons)
2.4 to 7.2
Relative Return on Investment to New
Technology (return for 12/31/08
phaseout = 1)
3-percent
discount rate
8,400
uncertainty may affect our estimates.
Our key focus is the effect of alternative
dates when generic competition for
albuterol HFA MDIs may begin.
7-percent
discount rate
.88
.85
In Table 6 of this document, we
present estimates assuming that generic
competition arrives in 2015.
TABLE 6.—EFFECTS OF PHASEOUT ON DECEMBER 31, 2008—ASSUMING GENERIC ENTRY IN 2015
Increased Expenditures for Albuterol
Present Value in 2005 (billions)
Number of
Affected
Albuterol MDIs
(millions)
3-percent
discount rate
336
7-percent
discount rate
$6.7
$5.2
This analysis suggests that the
eventual date that generic competition
arrives will have a substantial effect on
the total reduction in albuterol MDI use
and the aggregate reductions in CFC
emissions. Further analysis of the
arrival of generic competition would
require an evaluation of the legal merits
of the different patents, but such an
evaluation is beyond the expertise of
FDA.
G. Small Business Impact
Current HHS guidance (Ref. 17)
suggests that a 3 to 5 percent impact on
total costs or revenues of small entities
could constitute a significant regulatory
impact. We lack the data to certify that
this final rule will not have a significant
economic impact on a substantial
number of small entities. Therefore, this
analysis, together with other relevant
sections of this document, serves as
FDA’s Regulatory Flexibility Analysis,
as required under the Regulatory
Flexibility Act.
1. Affected Sector and Nature of Impacts
The affected industry sector includes
manufacturers of pharmaceutical
products (NAICS 32514). We obtained
data on this industry from the 1997
Economic Census and estimated
revenues per establishment. Although
other economic measures, such as
profitability, may provide preferable
alternatives to revenues as a basis for
estimating the significance of regulatory
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Possible
Reduction in
MDI Use
(millions)
Reduced Aggregate
Emissions Related to
Phaseout (metric
tons)
2.1 to 5.6
Frm 00025
Fmt 4701
Sfmt 4700
3-percent
discount rate
8,400
impacts, we do not believe it would
change the results of this analysis.
The impact of this rule on generic
manufacturers is the lost revenues
currently generated by sales of generic
albuterol CFC MDIs. While ‘‘lost
revenues’’ are an imperfect measure,
because production resources could be
shifted to alternative markets, they
provide a measure that suggests the
magnitude of the impact.
The Small Business Administration
(SBA) has defined as small any entity in
this industry with fewer than 750
employees. According to Census data,
84 percent of the industry is considered
small. The average annual revenue for a
small entity is $26.6 million per entity.
However, the agency does not have
revenue information specific to the
affected entities. According to retail
sales in the first half of 2004, of the 22.7
million generic or relabeled annual
prescriptions for albuterol,
approximately 63 percent (14.3 million
MDIs) were distributed by Schering, a
large firm, under the Warrick label. Six
different companies marketed the other
8.4 million albuterol MDIs, with three
companies accounting for over 99
percent of these 8.4 million (Ref. 10).
According to data collected by the
Congressional Budget Office (Ref. 18),
the value of shipments from
manufacturers of generic drug products
accounts for approximately 35 percent
of the retail price of the product. If so,
revenue from 1.7 million albuterol MDIs
PO 00000
Relative Return on Investment to New
Technology (return for 12/31/08
phaseout with genetic entry in
017 = 1)
.81
7-percent
discount rate
.84
would approximate $8.0 million per
year (1.7 million prescriptions X $13.50
per generic prescription X 35 percent).
Because we lack company-specific
revenue data, we are unable to estimate
the impact of this rule on these small
entities. To the extent that generic
albuterol HFA MDIs might become
available prior to the removal of the
essential-use designation, any impact on
small entities would be mitigated.
2. Outreach
The Montreal Protocol and Clean Air
Act have been in place for more than a
decade. Manufacturers of albuterol CFC
MDIs have long known that CFCs would
eventually lose their essential-use
designations for this purpose. During
the proposal stage of this rulemaking,
we specifically solicited comments on
the impact on small entities. No
comments were received that explicitly
addressed this issue.
H. Conclusion
This final rule could result in
increased health care expenditures of
about $1.2 billion for each year between
the removal of the essential-use
designation and reintroduction of
generic competition at patent
expiration. Taking into account GSK’s
commitment to provide free samples
and coupons, we estimate that higher
prices due to the elimination of generic
competition will reduce the number of
MDIs sold by between 300,000 and
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Federal Register / Vol. 70, No. 63 / Monday, April 4, 2005 / Rules and Regulations
900,000 per year. This estimate does not
take into account Schering’s and GSK’s
patient assistance programs designed to
provide free or low cost drugs to lowincome patients as we are unable to
assess how many albuterol MDI users
are currently helped by these programs
or how many more would be helped in
the future. In addition, each year
without using CFCs in albuterol MDIs
will reduce atmospheric emissions of
ODSs by 1,200 metric tons and provide
increased investment returns for
environmentally friendly technology
that may induce further gains. Removal
of the essential-use designation is
consistent with FDA’s role in
determining the essentiality of MDIs
under section 601 of the Clean Air Act,
and also meets U.S. obligations under
international agreements. Finally, we
lack the data to certify that this final
rule will not have a significant
economic impact on a substantial
number of small entities.
VI. The Paperwork Reduction Act of
1995
This final rule contains no collections
of information. Therefore, clearance by
the Office of Management and Budget
under the Paperwork Reduction Act of
1995 is not required.
VII. Federalism
We have analyzed this final rule in
accordance with the principles set forth
in Executive Order 13132. We have
determined that the rule does not
contain policies that have substantial
direct effects on the States, on the
relationship between the National
Government and the States, or on the
distribution of power and
responsibilities among the various
levels of government. While this rule
may result in States increasing spending
for albuterol MDIs in programs such as
Medicaid, the increased spending is not
a substantial direct compliance cost, as
the term is used in Executive Order
13132. Accordingly, we have concluded
that the rule does not contain policies
that have federalism implications as
defined in the Executive order and,
consequently, a federalism summary
impact statement is not required.
VIII. References
The following references have been
placed on display in the Division of
VerDate jul<14>2003
15:22 Apr 01, 2005
Jkt 205001
Dockets Management (see ADDRESSES)
and may be seen by interested persons
between 9 a.m. and 4 p.m., Monday
through Friday.
1. U.S. Food and Drug Administration,
‘‘Guidance for Industry: Integration of DoseCounting Mechanisms into MDI Drug
Products,’’ March 2003.
2. Penick, T. B. et al., ‘‘Accuracy of Float
Testing for Metered-Dose Inhaler Canisters,’’
Journal of the American Pharmaceutical
Association, 42:582, July/August 2002.
3. Craig-McFeely, P. M. et al., ‘‘Prospective
Observational Cohort Safety Study to
Monitor the Introduction of a Non-CFC
Formulation of Salbutamol with HFA 134a in
England,’’ International Journal of Clinical
Pharmacology and Therapeutics, 41:67–76,
2003.
4. Goldman, D. P. et al., ‘‘Pharmacy
Benefits and the Use of Drugs by the
Chronically Ill,’’ The Journal of the American
Medical Association, 291:2344–2350, 2349,
May 19, 2004.
5. United Nations Environmental
Programme, ‘‘Production and Consumption
of Ozone-Depleting Substances 1986–2000,’’
2002.
6. U.S. Environmental Protection Agency,
‘‘The Benefits and Costs of the Clean Air Act:
1990–2010’’ (https://www.epa.gov/air/
sect812/copy99.html).
7. Mannino, D. M. et al., ‘‘Chronic
Obstructive Pulmonary Disease
Surveillance—United States, 1971–2000,’’
Morbidity and Mortality Weekly Report,
51(SS06):1–16, August 2, 2002.
8. American Lung Association, ‘‘Trends in
Asthma Morbidity and Mortality,’’
Epidemiology & Statistics Unit, Research and
Scientific Affairs, April 2004.
9. Mannino, D. M. et al., ‘‘Surveillance for
Asthma—United States, 1980–1999,’’
Morbidity and Mortality Weekly Report,
51(SS01):1–13, March 29, 2002.
10. Analysis completed by FDA based on
information provided by IMS Health, IMS
National Prescription AuditTM, 2004; IMS
Health, IMS MIDASTM, Q1/2004—Q2/2004.
These data can be purchased from IMS
Health. Please send all inquiries to: IMS
Health, Attn: Brian Palumbo, Account
Manager, 660 West Germantown Pike,
Plymouth Meeting, PA 19462.
11. Rozek, R. P., and E. R. Bishko,
‘‘Economics Issues Raised in the FDA’s
Proposed Rule on Removing the EssentialUse Designation for Albuterol MDIs,’’
National Economic Research Associates,
August 13, 2004 (FDA Docket No. 2003P–
0029/C25).
12. Agency for Healthcare Research and
Quality, ‘‘Albuterol Inhalers: Prescriptions
per User, Price per Prescription and
Expenditure Given Use,’’ spreadsheet
prepared at FDA’s request for this
rulemaking, 2004.
PO 00000
Frm 00026
Fmt 4701
Sfmt 4700
13. Ringel, J. S. et al., ‘‘The Elasticity of
Demand for Health Care,’’ National Defense
Research Institute, Rand Health, 2002.
14. U.S. Census Bureau, ‘‘Income, Poverty,
and Health Insurance Coverage in the United
States: 2003,’’ Current Population Reports,
U.S. Department of Commerce, pp. 14–15,
August 2004.
15. Morelli, D., and M. R. Koenigsberg,
‘‘Sample Medication Dispensing in a
Residency Practice,’’ Journal of Family
Practice, 34(1):42–48, 1992.
16. Peterson, M. C. et al., ‘‘Disposition of
Pharmaceutical Samples from a Private
Medical Clinic,’’ Journal of the American
Pharmacists Association, 44(3):397–398,
2004.
17. U.S. Department of Health & Human
Services, ‘‘Guidance on Proper Consideration
of Small Entities in Rulemakings of the U.S.
Department of Health and Human Services,’’
May 2003.
18. Congressional Budget Office, ‘‘How
Increased Competition from Generic Drugs
Has Affected Prices and Returns in the
Pharmaceutical Industry,’’ July 1998.
List of Subjects in 21 CFR Part 2
Administrative practice and
procedure, Cosmetics, Devices, Drugs,
Foods.
Therefore, under the Federal Food,
Drug, and Cosmetic Act and the Clean
Air Act and under authority delegated to
the Commissioner of Food and Drugs,
after consultation with the
Administrator of the Environmental
Protection Agency, 21 CFR part 2 is
amended as follows:
I
PART 2—GENERAL ADMINISTRATIVE
RULINGS AND DECISIONS
1. The authority citation for 21 CFR
part 2 continues to read as follows:
I
Authority: 15 U.S.C. 402, 409; 21 U.S.C.
321, 331, 335, 342, 343, 346a, 348, 351, 352,
355, 360b, 361, 362, 371, 372, 374; 42 U.S.C.
7671 et seq.
§ 2.125
[Amended]
2. Section 2.125 is amended by
removing and reserving paragraph
(e)(2)(i).
I
Dated: March 29, 2005.
Jeffrey Shuren,
Assistant Commissioner for Policy.
[FR Doc. 05–6599 Filed 3–31–05; 8:45 am]
BILLING CODE 4160–01–S
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Agencies
[Federal Register Volume 70, Number 63 (Monday, April 4, 2005)]
[Rules and Regulations]
[Pages 17168-17192]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-6599]
[[Page 17167]]
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Part III
Department of Health and Human Services
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Food and Drug Administration
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21 CFR Part 2
Use of Ozone-Depleting Substances; Removal of Essential-Use
Designations; Final Rule
Federal Register / Vol. 70, No. 63 / Monday, April 4, 2005 / Rules
and Regulations
[[Page 17168]]
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DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
21 CFR Part 2
[Docket No. 2003P-0029]
RIN 0910-AF18
Use of Ozone-Depleting Substances; Removal of Essential-Use
Designations
AGENCY: Food and Drug Administration, HHS.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The Food and Drug Administration (FDA) is amending its
regulation on the use of ozone-depleting substances (ODSs) in self-
pressurized containers to remove the essential-use designations for
albuterol used in oral pressurized metered-dose inhalers (MDIs). Under
the Clean Air Act, FDA, in consultation with the Environmental
Protection Agency (EPA), is required to determine whether an FDA-
regulated product that releases an ODS is an essential use of the ODS.
Two albuterol MDIs that do not use an ODS have been marketed for more
than 3 years. FDA has determined that the two non-ODS MDIs will be
satisfactory alternatives to albuterol MDIs containing ODSs and is
removing the essential-use designation for albuterol MDIs as of
December 31, 2008. Albuterol MDIs containing an ODS cannot be marketed
after this date.
DATES: This rule is effective December 31, 2008.
ADDRESSES: Received comments, a transcript of, and material submitted
for, the Pulmonary-Allergy Advisory Committee meeting held on June 10,
2004, the environmental assessment, and the finding of no significant
impact may be seen in the Division of Dockets Management, 5630 Fishers
Lane, rm. 1061, Rockville, MD 20852, between 9 a.m. and 4 p.m., Monday
through Friday.
FOR FURTHER INFORMATION CONTACT: Wayne H. Mitchell, Center for Drug
Evaluation and Research (HFD-7), Food and Drug Administration, 5600
Fishers Lane, Rockville, MD 20857,301-594-2041.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Introduction and Highlights of the Rule
II. Background
A. Albuterol
B. CFCs
C. Regulation of ODSs
1. The 1978 Rules
2. The Montreal Protocol
3. The 1990 Amendments to the Clean Air Act
4. EPA's Implementing Regulations
5. FDA's 2002 Regulation
III. Comments on the 2004 Proposed Rule
A. General Comments
B. The Same Active Moiety with the Same Route of Administration,
for the Same Indication, and With Approximately the Same Level of
Convenience of Use
1. The Same Active Moiety with the Same Route of Administration,
for the Same Indication
2. Approximately the Same Level of Convenience of Use
C. Supplies and Production Capacity for the Non-ODS Products Will
Exist at Levels Sufficient to Meet Patient Need
D. Adequate U.S. Postmarketing Use Data is Available for the Non-
ODS Products
E. Patients Are Adequately Served by the Non-ODS Products
F. Effective Date
G. CFCs and the Environment
H. Comments on the Analysis of Impacts
I. Other Comments
IV. Environmental Impact
V. Analysis of Impacts
A. Introduction
B. Need for Regulation and the Objective of this Rule
C. Background
1. CFCs and Stratospheric Ozone
2. The Montreal Protocol
3. Benefits of the Montreal Protocol
4. Characteristics of COPD
5. Characteristics of Asthma
6. Current U.S. Albuterol MDI Market
D. Benefits and Costs of the Final Rule
1. Baseline Conditions
2. Benefits of the Final Rule
3. Costs of the Final Rule
4. Effects on Medicare and Medicaid
E. Alternative Phaseout Dates
F. Sensitivity Analyses
G. Small Business Impact
1. Affected Sector and Nature of Impacts
2. Outreach
H. Conclusion
VI. The Paperwork Reduction Act of 1995
VII. Federalism
VIII. References
I. Introduction and Highlights of the Rule
We published a proposed rule in the Federal Register of June 16,
2004 (69 FR 33602) (the 2004 proposed rule), proposing to remove the
essential-use designation for albuterol MDIs. Albuterol MDIs containing
chlorofluorocarbons (CFCs) or other ODSs cannot be marketed without an
essential-use designation. We have determined that the following four
criteria for removing an essential use have been met or will be met by
the effective date of the final rule:
More than one non-ODS product with the same active moiety
is marketed with the same route of administration, for the same
indication, and with approximately the same level of convenience of use
as the ODS product containing that active moiety;
Supplies and production capacity for the non-ODS products
will exist at levels sufficient to meet patient need;
Adequate U.S. postmarketing use data is available for the
non-ODS products; and
Patients who medically required the ODS product will be
adequately served by the non-ODS products containing that active moiety
and other available products.
We have also determined that the appropriate effective date for the
removal of the essential-use designation for albuterol MDIs is December
31, 2008.
We will discuss our determinations on the criteria and the
effective date in section V of this document ``Comments on the 2004
Proposed Rule.''
II. Background
A. Albuterol
Albuterol is a relatively selective beta2-adrenergic
agonist used in the treatment of bronchospasm associated with asthma
and chronic obstructive pulmonary disease (COPD). Albuterol has the
molecular formula C13H21NO3. Albuterol
is the name established for the drug by the U.S. Pharmacopeia and the
U.S. Adopted Names Council. FDA uses the name albuterol, and it is the
name commonly used in the United States. In most of the rest of the
world, the drug is called salbutamol, which is the International
Nonproprietary Name for the drug (the name recommended by the World
Health Organization). Albuterol is widely used in its sulfate salt
form, which has the molecular formula
(C13H21NO3)2H2SO4
. We will use ``albuterol'' to refer to both albuterol base and
albuterol sulfate, unless otherwise indicated.
Albuterol is available in many dosage forms for the treatment of
asthma and COPD. Syrups and tablets may be taken by mouth to be
absorbed into the blood through the digestive tract. Albuterol drug
products are marketed in various forms for inhalational use. Albuterol
is available in inhalation solutions for use
[[Page 17169]]
in nebulizers, and was previously marketed in the United States in a
compact dry-powder inhaler. Most important for purposes of this
document, albuterol is marketed in MDIs, which are small, pressurized
aerosol devices that deliver a measured dose of an aerosolized drug
into a patient's mouth for inhalation into the lungs.
Albuterol MDIs were first approved for use in the United States in
1981, when the new drug applications (NDAs) for VENTOLIN (NDA 18-473)
and PROVENTIL (NDA 17-559) albuterol MDIs were approved by FDA. The
first generic albuterol MDI was approved in 1995. Albuterol MDIs have
historically used the CFCs trichlorofluoromethane (CFC-11) and
dichlorodifluoromethane (CFC-12) as propellants.
Albuterol MDIs are among the most widely used drug products for the
treatment of asthma and COPD. Because of albuterol's relatively rapid
onset of action, albuterol MDIs are frequently used as ``rescue''
inhalers for treatment of bronchospasm during acute episodes. Albuterol
MDIs can be considered lifesaving for some patients at certain times;
they are very important for controlling symptoms in many more patients
who suffer from asthma or COPD. We recognize and take very seriously
our obligation to examine with particular care any action that could
affect the availability of these important drugs.
B. CFCs
CFCs are organic compounds that contain carbon, chlorine, and
fluorine atoms. CFCs were first used commercially in the early 1930s as
a replacement for hazardous materials then used in refrigeration, such
as sulfur dioxide and ammonia. Subsequently, CFCs were found to have a
large number of uses, including as solvents and as propellants in self-
pressurized aerosol products, such as MDIs.
CFCs are very stable in the troposphere, the lowest part of the
atmosphere. They move to the stratosphere, a region that begins about
10 to 16 kilometers (km) (6 to 10 miles) above Earth's surface and
extends up to about 50 km (31 miles) altitude. Within the stratosphere,
there is a zone about 15 to 40 km (10 to 25 miles) above the Earth's
surface in which ozone is relatively highly concentrated. This zone in
the stratosphere is generally called the ozone layer. Once in the
stratosphere, CFCs are gradually broken down by strong ultraviolet
light, where they release chlorine atoms that then deplete
stratospheric ozone. Depletion of stratospheric ozone by CFCs and other
ODSs allows more ultraviolet-B (UV-B) radiation to reach the Earth's
surface, where it increases skin cancers and cataracts, and damages
some marine organisms, plants, and plastics.
C. Regulation of ODSs
The link between CFCs and the depletion of stratospheric ozone was
discovered in the mid-1970s. Since 1978, the U.S. Government has
pursued a vigorous and consistent policy, through the enactment of laws
and regulations, of limiting the production, use, and importation of
ODSs, including CFCs.
1. The 1978 Rules
In the Federal Register of March 17, 1978 (43 FR 11301 at 11318),
FDA and EPA published rules banning, with a few exceptions, the use of
CFCs as propellants in aerosol containers. These rules were issued
under authority of the Federal Food, Drug, and Cosmetic Act (the act)
(21 U.S.C. 321 et seq.) and the Toxic Substances Control Act (15 U.S.C.
2601 et seq.), respectively. FDA's rule (the 1978 rule) was codified as
Sec. 2.125 (21 CFR 2.125). The rules issued by FDA and EPA had been
preceded by rules issued by FDA and the Consumer Product Safety
Commission requiring products that contain CFC propellants to bear
warning statements on their labeling (42 FR 22018, April 29, 1977; 42
FR 42780, August 24, 1977).
The 1978 rule prohibited the use of CFCs as propellants in self-
pressurized containers in any food, drug, medical device, or cosmetic.
As originally published, the rule listed five essential uses that were
exempt from the ban. The third listed essential use was for
``[m]etered-dose adrenergic bronchodilator human drugs for oral
inhalation.'' This language describes albuterol MDIs, so the list of
essential uses did not have to be amended in 1981 when VENTOLIN and
PROVENTIL albuterol MDIs were approved by FDA.
The 1978 rule provided criteria for adding new essential uses, and
several uses were added to the list, the last one in 1996. The 1978
rule did not provide any mechanism for removing essential uses from the
list as alternative products were developed or CFC-containing products
were removed from the market. The absence of a removal procedure came
to be viewed as a deficiency in the 1978 rule, and was addressed in a
later rulemaking, discussed in section II.C.5 of this document.
2. The Montreal Protocol
On January 1, 1989, the United States became a party to the
Montreal Protocol on Substances that Deplete the Ozone Layer (Montreal
Protocol) (September 16, 1987, 26 I.L.M. 1541 (1987)), available at
https://www.unep.org/ozone/pdfs/Montreal-Protocol2000.pdf.\1\ The United
States played a leading role in the negotiations of the Montreal
Protocol, believing that internationally coordinated control of ozone-
depleting substances would best protect both the U.S. and global public
health and the environment from potential adverse effects of depletion
of stratospheric ozone. Currently, there are 188 parties to this
treaty.\2\ When it joined the treaty, the United States committed to
reducing production and consumption of certain CFCs to 50 percent of
1986 levels by 1998 (Article 2(4) of the Montreal Protocol). It also
agreed to accept an ``adjustment'' procedure, whereby, following
assessment of the existing control measures, the Parties could adjust
the scope, amount, and timing of those control measures for substances
already subject to the Montreal Protocol. As the evidence regarding the
impact of ODSs on the ozone layer became stronger, the Parties used
this adjustment procedure to accelerate the phaseout of ODSs. At the
fourth meeting of the Parties to the Montreal Protocol, held at
Copenhagen in November 1992, the Parties adjusted Article 2 of the
Montreal Protocol to eliminate the production and importation of CFCs
by Parties that are developed countries by January 1, 1996 (Decision
IV/2).\3\ The adjustment also indicated that it would apply ``save to
the extent that the Parties decide to permit the level of production or
consumption that is necessary to satisfy uses agreed by them to be
essential'' (Article 2A(4)). Under the treaty's rules of procedure, the
Parties may make such an essential-use decision by a two-thirds
majority vote,
[[Page 17170]]
although, to date, all such decisions have been made by consensus.
---------------------------------------------------------------------------
\1\ FDA has verified all Web site addresses cited in this
document, but FDA is not responsible for any subsequent changes to
the Web sites after this document has published in the Federal
Register.
\2\ The summary descriptions of the Montreal Protocol and
decisions of parties to the Montreal Protocol contained in this
document are presented here to help you understand the background of
the action we are taking. These descriptions are not intended to be
formal statements of policy regarding the Montreal Protocol.
Decisions by the parties to the Montreal Protocol are cited in this
document in the conventional format of ``Decision IV/2,'' which
refers to the second decision recorded in the Report of the Fourth
Meeting of the parties to the Montreal Protocol on Substances That
Deplete the Ozone Layer. Reports of meetings of the parties to the
Montreal Protocol may be found on the United Nations Environment
Programme's Web site at https://www.unep.org/ozone/mop/mop-
reports.shtml.
\3\ Production of CFCs in economically less-developed countries
is being phased out and is scheduled to end by January 1, 2010. See
Article 2a of the Montreal Protocol.
---------------------------------------------------------------------------
To produce or import CFCs for an essential use under the Montreal
Protocol, a Party must request and obtain approval for an exemption at
a meeting of the Parties. One of the most important essential uses of
CFCs under the Montreal Protocol is their use in MDIs for the treatment
of asthma and COPD. The decision on whether the use of CFCs in MDIs is
``essential'' for purposes of the Montreal Protocol turns on whether:
``(1) It is necessary for the health, safety, or is critical for the
functioning of society (encompassing cultural and intellectual aspects)
and (2) there are no available technically and economically feasible
alternatives or substitutes that are acceptable from the standpoint of
environment and health'' (Decision IV/25). Each request and any
subsequent exemption is for only 1 year's duration (Decision V/18).
Since 1994 the United States and some other Parties to the Montreal
Protocol have annually requested, and been granted, essential-use
exemptions for the production or importation of CFCs for their use in
MDIs for the treatment of asthma and COPD (see, among others, Decisions
VI/9 and VII/28). The exemptions have been consistent with the criteria
established by the Parties, which make the grant of an exemption
contingent on a finding that the use for which the exemption is being
requested is essential for health, safety, or the functioning of
society, and that there are no available technically and economically
feasible alternatives or substitutes that are acceptable from the
standpoint of health or the environment (Decision IV/25).
Phasing out the use of CFCs in MDIs for the treatment of asthma and
COPD has been an issue of particular interest to the Parties to the
Montreal Protocol. Several decisions of the Parties have dealt with the
transition to CFC-free MDIs, including the following decisions:
Decision VIII/10 stated that the Parties that are
developed countries would take various actions to promote industry's
participation in a smooth and efficient transition away from CFC-based
MDIs (San Jose, Costa Rica, 1996).
Decision IX/19 required the Parties that are developed
countries to present an initial national or regional transition
strategy by January 31, 1999 (Montreal, Canada, 1997).
Decision XII/2 elaborated on the content of national or
regional transition strategies required under Decision IX/19 and
indicated that any MDI for the treatment of asthma or COPD approved for
marketing after 2000 would not be an ``essential use'' unless it met
the criteria laid out by the Parties for essential uses (Ouagadougou,
Burkina Faso, 2000).
Decision XIV/5 requested that each Party report annually
the quantities of CFC and non-CFC MDIs and dry-powder inhalers sold or
distributed within that country and the approval and marketing status
of non-CFC MDIs and dry-powder inhalers. Decision XIV/5 also noted
``with concern the slow transition to CFC-free metered-dose inhalers in
some Parties'' (Rome, Italy, 2002).
Decision XV/5 states that no essential uses of CFCs will
be authorized for Parties that are developed countries at the 17th
meeting of the Parties (in autumn 2005), or thereafter, unless the
Party requesting the essential-use allocation has submitted an action
plan. Among other items, the action plan should include a specific date
by which the Party plans to cease requesting essential-use allocations
of CFCs for albuterol MDIs to be sold or distributed in developed
countries. The action plan must be submitted before the 25th meeting of
the Open-Ended Working Group\4\ in the summer of 2005 (Nairobi, Kenya,
2003).
---------------------------------------------------------------------------
\4\ The Open-Ended Working Group (OEWG) was established in 1989
at the first meeting of the Parties to the Montreal Protocol held in
Helsinki. The OEWG, among other duties, considers proposals for
amendments and adjustments to the Montreal Protocol and prepares
consolidated reports based on the reports of various scientific,
technical, and economic panels. These proposals and reports may
subsequently be acted on by a meeting of the Parties to the Montreal
Protocol.
---------------------------------------------------------------------------
In addition to fulfilling our obligations under the Clean Air Act
and other provisions of the Montreal Protocol, this rule is intended to
provide, for purposes of Decision XV/5, the specific date after which
the United States will not request essential-use allocations of CFCs
for albuterol MDIs.
3. The 1990 Amendments to the Clean Air Act
In 1990, Congress amended the Clean Air Act to, among other things,
better protect stratospheric ozone (Public Law 101-549, November 15,
1990) (the 1990 amendments). The 1990 amendments were drafted to
complement, and be consistent with, our obligations under the Montreal
Protocol (see section 614 of the Clean Air Act (42 U.S.C. 7671m)).
Section 614(b) of the Clean Air Act provides that in the case of a
conflict between any provision of the Clean Air Act and any provision
of the Montreal Protocol, the more stringent provision will govern.
Section 604 of the Clean Air Act requires the phaseout of the
production of CFCs by 2000 (42 U.S.C. 7671c),\5\ while section 610 of
the Clean Air Act (42 U.S.C. 7671i) required EPA to issue regulations
banning the sale or distribution in interstate commerce of nonessential
products containing CFCs. Sections 604 and 610 provide exceptions for
``medical devices.'' Section 601(8) (42 U.S.C. 7671(8)) of the Clean
Air Act defines ``medical device'' as
---------------------------------------------------------------------------
\5\ In conformance with Decision IV/2, EPA issued regulations
accelerating the complete phaseout of CFCs, with exceptions for
essential uses, to January 1, 1996 (58 FR 65018, December 10, 1993).
---------------------------------------------------------------------------
any device (as defined in the Federal Food, Drug, and Cosmetic
Act (21 U.S.C. 321)), diagnostic product, drug (as defined in the
Federal Food, Drug, and Cosmetic Act), or drug delivery system-
(A) if such device, product, drug, or drug delivery system
utilizes a class I or class II substance for which no safe and
effective alternative has been developed, and where necessary,
approved by the Commissioner [of Food and Drugs]; and
(B) if such device, product, drug, or drug delivery system, has,
after notice and opportunity for public comment, been approved and
determined to be essential by the Commissioner [of Food and Drugs]
in consultation with the Administrator [of EPA].''
4. EPA's Implementing Regulations
EPA regulations implementing the Montreal Protocol and the
stratospheric ozone protection provisions of the 1990 amendments are
codified in part 82 of title 40 of the Code of Federal Regulations (40
CFR part 82). (See 40 CFR 82.1 for a statement of intent.) Like the
1990 amendments, EPA's implementing regulations contain two separate
prohibitions, one on the production and import of CFCs (subpart A of 40
CFR part 82) and the other on the sale or distribution of products
containing CFCs (40 CFR 82.66).
The prohibition on production and import of CFCs contains an
exception for essential uses and, more specifically, for essential
MDIs. The definition of essential MDI at 40 CFR 82.3 requires that the
MDI be intended for the treatment of asthma or COPD, be essential under
the Montreal Protocol, and if the MDI is for sale in the United States,
be approved by FDA and listed as essential in FDA's regulations at
Sec. 2.125.
The prohibition on the sale of products containing CFCs includes a
specific prohibition on aerosol products and other pressurized
dispensers. The aerosol product ban contains an exception for medical
devices listed in Sec. 2.125(e). The term ``medical device'' is used
with the same meaning it was given in the 1990 amendments and
[[Page 17171]]
includes drugs as well as medical devices.
5. FDA's 2002 Regulation
In the 1990s, we decided that Sec. 2.125 required revision to
better reflect our obligations under the Montreal Protocol, the 1990
amendments, and EPA's regulations, and to encourage the development of
ozone-friendly alternatives to medical products containing CFCs. In
particular, as acceptable alternatives that did not contain CFCs or
other ODSs came on the market, there was a need to provide a mechanism
for removing essential uses from the list in Sec. 2.125(e). In the
Federal Register of March 6, 1997 (62 FR 10242), we published an
advance notice of proposed rulemaking (the 1997 ANPRM) in which we
outlined our then-current thinking on the content of an appropriate
rule regarding ODSs in products FDA regulates. We received almost
10,000 comments on the 1997 ANPRM. In response to the comments, we
revised our approach and drafted a proposed rule published in the
Federal Register of September 1, 1999 (64 FR 47719) (the 1999 proposed
rule). We received 22 comments on the 1999 proposed rule. After minor
revisions in response to these comments, we published a final rule in
the Federal Register of July 24, 2002 (67 FR 48370) (the 2002 final
rule) (corrected in 67 FR 49396, July 30, 2002, and 67 FR 58678,
September 17, 2002).
Among other changes, the 2002 final rule, in revised Sec.
2.125(g)(3), set standards that FDA would use for determining whether
the use of an ODS in a medical product is no longer essential. The 2002
final rule provided that to remove an essential-use designation, FDA
must find that:
At least one non-ODS product with the same active moiety
is marketed with the same route of administration, for the same
indication, and with approximately the same level of convenience of use
as the ODS product containing that active moiety;
Supplies and production capacity for the non-ODS
product(s) exist or will exist at levels sufficient to meet patient
need;
Adequate U.S. postmarketing use data is available for the
non-ODS product(s); and
Patients who medically required the ODS product are
adequately served by the non-ODS product(s) containing that active
moiety and other available products.
To remove the essential-use designation of an active moiety
marketed in an ODS product represented by one NDA, there must be at
least one acceptable alternative, while for an active moiety marketed
in ODS products and represented by two or more NDAs, there must be at
least two acceptable alternatives.
Because there are multiple NDAs for albuterol MDIs containing an
ODS, the rule requires that there must be at least two acceptable
alternatives available for us to remove the essential-use designation
for albuterol. We have determined that there are two acceptable
alternatives for albuterol MDIs containing an ODS.
FDA approved the NDA for PROVENTIL HFA, albuterol sulfate MDI, on
August 15, 1996 (NDA 20-503), and the product was introduced into the
U.S. market later that year. PROVENTIL HFA is manufactured by 3M Co.
(3M) and marketed by Schering-Plough Corp. (Schering). VENTOLIN HFA,
albuterol sulfate MDI, was approved on April 19, 2001 (NDA 20-983), and
it was introduced into the U.S. market in February 2002. VENTOLIN HFA
is manufactured and marketed by GlaxoSmithKline (GSK). Both of these
products use the hydrofluoroalkane HFA-134a as a replacement for ODSs.
HFA-134a does not affect stratospheric ozone. We will use the phrase
``albuterol HFA MDIs'' to refer to both of these products in this
document. IVAX Corp. (IVAX) has recently begun marketing an albuterol
HFA MDI, but the short period of time that the IVAX MDI has been on the
market prevents us from considering the drug an alternative to
albuterol CFC MDIs for purposes of this rulemaking (see our response to
comment 14 of this document). Albuterol HFA MDIs are the subject of
patents, listed in our publication Approved Drug Products with
Therapeutic Equivalence Evaluations (the Orange Book), which will,
presumably, block the marketing of generic albuterol HFA MDIs until
they expire. See our response to comment 36 of this document for a
discussion of the patent issues that were raised in this rulemaking.
There is a separate essential-use designation for metered-dose
ipratropium bromide and albuterol sulfate, in combination, administered
by oral inhalation for human use, Sec. 2.125(e)(2)(viii). This
essential use was added to the list of essential uses (Sec. 2.125(e)),
even though albuterol and ipratropium bromide were already separately
included in the list of essential uses. (See 60 FR 53725, October 17,
1995, and 61 FR 15699, April 9, 1996.) The only drug product marketed
under the essential-use designation for metered-dose ipratropium
bromide and albuterol sulfate, in combination, is Boehringer Ingelheim
Phamaceuticals' product COMBIVENT. Because COMBIVENT has two active
ingredients, it is not subject to Decision XV/5, which concerns MDIs
with albuterol as the sole active ingredient. This rule will not affect
the essential-use status of COMBIVENT.
III. Comments on the 2004 Proposed Rule
On June 10, 2004, we held a meeting of the Pulmonary-Allergy Drug
Advisory Committee (the PADAC meeting) to discuss the issues involved
in removing the essential-use designation for albuterol MDIs (see the
Federal Registers of May 11, 2004 (69 FR 26169), and June 2, 2004 (69
FR 31126)). Presentations were made by 13 speakers representing patient
advocacy groups, medical professional organizations, an industry
organization, an environmental advocacy group, an economics consulting
firm, GSK, Schering, Honeywell Chemicals (Honeywell), and IVAX. We
address the comments made in written material submitted to the
committee and oral comments made during the open public hearing and
committee discussion portions of the meeting in addition to the written
and electronic comments submitted to the docket in response to the 2004
proposed rule.\6\
---------------------------------------------------------------------------
\6\ Fran Du Melle, Executive Vice President of the American Lung
Association, submitted a citizen petition on behalf of the U.S.
Stakeholders Group on MDI Transition on January 29, 2003 (Docket No.
2003P-0029/CP1) (Stakeholders' petition). The Stakeholders' petition
requested that we initiate rulemaking to remove the essential-use
designation of albuterol MDIs. Several comments were submitted in
response to the petition. All of the opinions and information in
those comments, with one exception (see comment 39 of this
document), were also contained in testimony at the PADAC meeting or
in comments on the proposed rule. In nearly every case, parties
submitting comments on the petition also testified at the PADAC
meeting, submitted comments on the proposed rule, or both.
Accordingly, with the exception of comment 39 of this document, we
will not be directly responding in this document to the
Stakeholders' petition or the comments on the petition.
---------------------------------------------------------------------------
We received over 75 written and electronic comments in response to
the 2004 proposed rule. They were submitted by patients, health care
providers, patient advocacy groups, professional groups, manufacturers,
a law firm, an economics consulting firm, and industry organizations.
Most of the parties who spoke at the PADAC meeting also submitted
written comments.
A. General Comments
(Comment 1) We received several comments that expressed general
approval for the 2004 proposed rule.
[[Page 17172]]
We appreciate the effort that the people who submitted these
comments, and all other comments, made in expressing their opinions on
this important rulemaking.
(Comment 2) We received several comments that expressed a general
opposition to the phaseout of albuterol CFC MDIs, without giving any
reasons for the opposition.
We cannot address these general comments. Comments that gave
specific reasons why the person submitting the comment opposes the
elimination of the essential-use designation for albuterol CFC MDIs
will be discussed in the appropriate sections of this document.
(Comment 3) A few comments seemed to be based on a perception that
this rulemaking would remove all albuterol MDIs from the market.
The perception is inaccurate. This rulemaking is based on the fact
that there will be at least two different albuterol MDIs that are
acceptable alternatives under Sec. 2.125(g) available after the rule
goes into effect.
(Comment 4) Several comments were made advocating an expeditious
phaseout of albuterol CFC MDIs. A few comments recommended we proceed
slowly and cautiously.
We believe this final rule provides for the phaseout of albuterol
CFC MDIs with a speed that is consistent with our duty to protect the
public health and our legal obligations.
(Comment 5) One comment requested we publish this rule by December
31, 2004.
We did not publish this rule by December 31, 2004, because it
involves complicated and sensitive issues that required extensive
consultation and deliberation within FDA and the Department of Health
and Human Services (HHS), and with EPA and other Federal agencies. We
have issued this rule in the most expeditious manner, consistent with
the complexities and sensitivity of the issues involved.
(Comment 6) One comment asked that we consider in this rulemaking
the availability of CFC drug products that do not have a non-CFC
substitute, the availability of generic albuterol MDIs, and the impact
that higher priced drugs may have on the public health.
As we discuss in several places in the 2004 proposed rule and this
document, issues of price and generic competition were major concerns
to us. However, because this rulemaking deals exclusively with the
essential-use designation for albuterol MDIs, we did not examine the
availability of non-CFC substitutes for drug products other than
albuterol CFC MDIs.
(Comment 7) One comment stated we did not adequately communicate to
the medical community the details of our policy regarding CFC MDIs. The
comment expressed concern that we did not give a timeframe for the
phaseout of albuterol CFC MDIs.
We believe we have done a good job of keeping the public and the
medical community informed on our policy regarding the elimination of
essential-use designations for medical products. We first discussed our
general policy on the issue in the 1997 ANPRM. We received nearly
10,000 comments in response to the 1997 ANPRM, which demonstrates that
this document received wide publicity. We received additional comments
in response to the 1999 proposed rule, which proposed changes in Sec.
2.125 to provide a mechanism for eliminating essential uses. A citizen
petition was submitted on behalf of the U.S. Stakeholders Group on MDI
Transition (stakeholders group) on January 29, 2003 (Docket No. 2003P-
0029/CP1), essentially requesting that we initiate this rulemaking.
This stakeholders group consists of both patient advocacy and
professional organizations. These groups were aware of our policies.
FDA staff has spoken several times before professional medical
organizations, patient advocacy groups, and the National Asthma
Education and Prevention Program Coordinating Committee of the National
Institutes of Health. FDA staff have also answered countless telephone
calls and correspondence on the subject. We have provided press
releases and opportunities for interviews to the general, trade, and
professional media. We believe we have done what can be reasonably
expected to inform the public and the medical profession. However, we
were not able to provide a timeframe for eliminating the essential-use
designation for albuterol MDIs. We specifically solicited comments on
an appropriate effective date for the elimination of the essential-use
designation for albuterol MDIs. The effective date could not be
established until we had finished our evaluation of the comments
submitted in response to the 2004 proposed rule, prepared a draft of
this document, and consulted with EPA and other Federal agencies.
B. The Same Active Moiety with the Same Route of Administration, for
the Same Indication, and With Approximately the Same Level of
Convenience of Use
1. The Same Active Moiety with the Same Route of Administration, for
the Same Indication
We did not receive any comments disagreeing with our tentative
conclusions stated in the 2004 proposed rule, or addressing the
conclusions in any substantive way, that albuterol HFA MDIs have the
same active moiety with the same route of administration for the same
indications as albuterol CFC MDIs. We therefore finalize our tentative
conclusion that albuterol HFA MDIs have the same active moiety with the
same route of administration for the same indications as albuterol CFC
MDIs.
2. Approximately the Same Level of Convenience of Use
(Comment 8) One comment asserted that the VENTOLIN HFA MDIs were
not an adequate alternative for albuterol CFC MDIs because the VENTOLIN
HFA MDI requires more force to operate.
Although we do have some data on the force needed to operate the
various albuterol MDIs, because that information comes from different
sources using different measuring techniques and apparatus, we are not
able to meaningfully compare the amounts of force needed to operate
albuterol HFA MDIs compared to the force needed for albuterol CFC MDIs.
However, of the approximately 20 comments we received that indicated
that the person submitting the comment had some experience using
albuterol HFA MDIs, only one complained that the albuterol HFA MDIs
required excessive effort to operate. None of the thirteen comments
from health care providers indicated that their patients had problems
operating the albuterol HFA MDIs. The PROVENTIL HFA MDI is somewhat
shorter and wider than the VENTOLIN HFA MDI. Patients who find it
difficult to apply adequate pressure to the VENTOLIN HFA MDI may wish
to try the shorter PROVENTIL HFA MDI or other albuterol HFA MDIs that
may come onto the market.
(Comment 9) One comment said that the VENTOLIN HFA MDIs were not an
adequate alternative for albuterol CFC MDIs because the VENTOLIN HFA
MDI needs to be primed before use.
The approved labeling for both PROVENTIL HFA and VENTOLIN HFA
recommend that patients prime the MDI before using it for the first
time and in cases where the MDI has not been used for more than 2 weeks
by releasing four
[[Page 17173]]
test sprays into the air, away from the face. The approved labeling for
PROVENTIL CFC MDIs and Warwick brand albuterol CFC MDIs contain a
similar instruction about priming, but recommend priming if the MDI has
not been used for 4 days, as opposed to the more convenient 2 weeks for
the albuterol HFA MDIs. The approved labeling for VENTOLIN CFC MDIs,
and for the generic albuterol CFC MDIs which refer to the VENTOLIN CFC
MDI, contain an essentially identical recommendation, but refer to the
operation as ``test sprays'' rather than priming. These test sprays are
recommended if these albuterol CFC MDIs have not been used for more
than 4 weeks. Therefore, priming is recommended for all of the
albuterol CFC MDI products affected by this rulemaking. The only
difference between albuterol CFC MDIs and albuterol HFA MDIs that would
inconvenience patients is the shorter period of non-use before priming
is recommended for the albuterol HFA MDIs compared to VENTOLIN CFC MDIs
and the generic albuterol CFC MDIs which refer to the VENTOLIN CFC MDI.
We consider this difference to be at most a minor inconvenience, and
not a ``significant [variation] in convenience that materially
impede[s] patient compliance.'' (See the 2002 final rule (67 FR 48370
at 48377).) When we compare the albuterol HFA MDIs to PROVENTIL CFC
MDIs and Warwick brand albuterol CFC MDIs, the albuterol HFA MDIs are
actually more convenient, because of the longer period of non-use
before priming is recommended.
(Comment 10) One comment stated that the VENTOLIN HFA MDIs were not
an adequate alternative for albuterol CFC MDIs because the float test
cannot be used to determine whether the VENTOLIN HFA MDI is empty.
The float test is a widely described, but inaccurate, method of
ascertaining whether an MDI is empty by seeing if it floats. In
addition to being an inaccurate method to ascertain whether an MDI
still contains usable quantities of the drug, the float test can damage
the MDI (See Refs. 1 and 2). The float test is not recommended in the
approved labeling of any albuterol CFC MDI. The only accurate way to
determine whether an MDI still contains usable quantities of the drug
is to keep track of the number of actuations. This is true for both
albuterol CFC and HFA MDIs. Therefore we cannot view the inability to
perform the float test on the albuterol HFA MDIs as a ``significant
[variation] in convenience that materially impede patient compliance.''
(See the 2002 final rule (67 FR 48370 at 48377).)
We find that albuterol HFA MDIs have approximately the same level
of convenience of use as albuterol CFC MDIs.
C. Supplies and Production Capacity for the Non-ODS Products Will Exist
at Levels Sufficient to Meet Patient Need
(Comment 11) At the PADAC meeting a representative of GSK stated
GSK was currently producing approximately 300,000 albuterol HFA MDIs
annually at their Zebulon, NC, plant. She further stated the current
installed capacity at Zebulon is 15 million albuterol HFA MDIs
annually, but that it would take GSK 6 to 12 months after a final
decision on an effective date in this rulemaking to hire staff and
reconfigure existing space to take full advantage of the installed
capacity. She stated it would take GSK 12 to 18 months after a final
decision on an effective date in this rulemaking to install additional
manufacturing equipment and secure required component supplies to
enable GSK to manufacture 30 to 33 million albuterol MDIs.
A representative of Schering stated at the PADAC meeting that 3M
would be able to manufacture enough albuterol MDIs to meet Schering's
``share of the expected demand'' for approximately 50 million albuterol
HFA MDIs (transcript of PADAC meeting at p. 130). Answering a question
from a committee member, the Schering representative clarified that his
statement regarding Schering's and 3M's share of the manufacturing
capacity was consistent with the earlier statements made on behalf of
GSK.
In a subsequent written comment (2003P-0029/C20), GSK revised its
production estimates and stated they would begin increasing production
before the publication of this rule, and that they currently
anticipated having the capacity to produce 30 million albuterol HFA
MDIs annually by December 31, 2005. GSK further said they will also
begin building up their inventory at least 3 months before the
effective date of this rule. GSK also said they would reevaluate their
expansion plans if the effective date of this rule were substantially
beyond December 31, 2005.
Schering also revised their projections on increasing production
capacity in a written comment submitted after the PADAC meeting (2003P-
0029/C31). Schering said they will have adequate production available
to meet demand for albuterol HFA MDIs by December 2005. Schering also
said they would reevaluate their expansion plans if the effective date
of this rule were substantially beyond December 2005. 3M, which
produces the albuterol HFA MDIs Schering markets, confirmed Schering's
comment by stating that they will have the capacity to manufacture 30
million albuterol HFA MDIs annually by December 31, 2005.
These projections were major considerations we took into account in
establishing the effective date for this rule. We discuss our rationale
for setting a December 31, 2008, effective date in our response to
comment 32 of this document.
(Comment 12) A comment from a manufacturer of HFA-134a stated there
would be more than adequate supplies of HFA-134a for albuterol MDIs if
the essential-use designation is removed.
We appreciate this confirmation that adequate supplies of HFA-134a
will exist to meet the increased demand for the propellant.
(Comment 13) A few comments from patients expressed concerns that
shortages of albuterol MDIs may result from the elimination of the
essential-use status of albuterol MDIs. Comments from a trade
organization and a chain drug store expressed concerns about whether
production capacity for albuterol HFA MDIs would be in place as quickly
as had been discussed in the 2004 proposed rule.
The issue of adequate supply and production capacity has been key
to this rulemaking. We regard the statements by GSK, Schering, and 3M
that they will have adequate production in place as the best evidence
on the availability of production capacity. When we chose December 31,
2008, as the effective date of this rule, we did so with every
reasonable expectation that adequate supplies and production capacity
would be in place by December 31, 2008.
(Comment 14) A representative of IVAX stated at the PADAC meeting
that IVAX had submitted an NDA for an albuterol HFA MDI in January
2003, and received an approvable letter\7\ from FDA for the NDA on
November 28, 2003. He also said IVAX had submitted a separate NDA for
an albuterol HFA breath-actuated inhaler in August 2003. He said he
expected the products to be on the market in the near future. He stated
that IVAX would soon have the capacity to manufacture 50 to 60 million
HFA MDIs a year at IVAX's Waterford,
[[Page 17174]]
Ireland, plant, although he did not specify what proportion of that
capacity would be allocated to albuterol HFA products or to products
for the U.S. market.
---------------------------------------------------------------------------
\7\ An ``approvable letter'' is a written communication to an
applicant from FDA stating that we will approve the NDA if specific
additional information or material is submitted or specific
conditions are met. An approvable letter does not constitute
approval of any part of an NDA and does not permit marketing of the
drug that is the subject of the NDA (21 CFR 314.3).
---------------------------------------------------------------------------
We did not consider this information in making our decision on the
essential-use designation for albuterol MDIs. The IVAX albuterol HFA
MDI was approved on October 29, 2004, and introduced into the market in
December 2004. Because this product has been on the market for such a
short time, the available U.S. postmarketing use data is inadequate for
purposes of Sec. 2.125(g)(3)(iii). IVAX's albuterol HFA breath-
actuated inhaler has not been approved or marketed. Section
2.125(g)(4)(i) requires alternative products to be marketed. In
addition, because the product has not been marketed, there can be no
U.S. postmarketing use data available to allow us to evaluate whether
the breath-actuated inhaler will be an acceptable alternative to
albuterol CFC MDIs.
(Comment 15) One comment asserted the entire supply of albuterol
HFA MDIs for the United States would be produced at one GSK facility
and one 3M facility. The comment concluded that adequate supplies of
albuterol HFA MDIs were insufficient because it was unclear whether one
facility could supply the entire market if the other facility were
forced to close.
We appreciate the concerns expressed in this comment; however, the
factual premise for the comment is misstated. We believe that a switch
to albuterol HFA MDIs will improve the security of the U.S. supply of
albuterol MDIs. Immediately after the phaseout of albuterol CFC MDIs,
we will have one GSK facility and two 3M/Schering facilities supplying
the U.S. market for albuterol MDIs. This compares favorably to the
current situation with albuterol MDIs, where one Schering facility and
one IVAX facility supply 95 percent of the U.S. market for albuterol
CFC MDIs (comment from NERA dated August 13, 2004 (2003P-0029/C25)),
exhibit 4; and corrected comment from GSK, dated August 25, 2004
(2003P-0029/CR1). IVAX's recently approved albuterol HFA MDI, although
not considered an alternative product for purposes of this rule (see
our response to comment 14 of this document), gives additional
assurance that there will be adequate supplies of albuterol HFA MDIs if
there is an interruption of production at one of the GSK or 3M approved
manufacturing sites. We also would like to point out that GSK and 3M
have overseas production facilities that are not listed as authorized
manufacturing facilities in the approved NDAs for PROVENTIL HFA and
Ventolin HFA. These facilities may be able to export albuterol HFA MDIs
to the United States in an emergency shortage situation.
In our rulemaking establishing the criteria for eliminating an
essential-use designation, we considered requiring multiple production
sites to ensure a secure supply of non-ODS drug products (see the 1997
ANPRM (69 FR 10242 at 10245), the 1999 proposed rule (64 FR 47719 at
47723), and the 2002 final rule (67 FR 48370 at 48377)). We chose not
to require multiple production sites for the alternative products as a
criterion for eliminating the essential-use designation. In any case,
albuterol HFA MDIs can be manufactured at three or more sites, which
will provide a high degree of security for continued supplies of
albuterol HFA MDIs, compared to the supply of other drugs intended for
treatment of serious or life-threatening diseases, many of which are
only manufactured in one facility.
(Comment 16) One comment recommended we delay the effective date
for this rule until albuterol MDIs from IVAX and Sepracor Inc.
(Sepracor) are on the market to ensure adequate supplies and provide
price competition. Another comment recommended we establish an earlier
effective date if the albuterol MDIs from IVAX and Sepracor Inc., are
approved.
The IVAX albuterol HFA MDI is already approved (see our response to
comment 14 of this document). Sepracor's levalbuterol tartrate\8\ MDI
XOPENEX HFA was approved on March 11, 2005, but has not been marketed
by the time this document was published. Because XOPENEX HFA has not
been marketed, we cannot consider it an alternative to albuterol CFC
MDIs (see our response to comment 14 of this document). While we
believe that the presence of additional suppliers of non-ODS albuterol
products would be desirable for the reasons given in the comment, we do
not believe they are necessary for the purposes of this rulemaking.
Based on statements from GSK, Schering, and 3M, we expect that adequate
production capacity for alternative products evaluated under Sec.
2.125(g) will exist by the effective date of this rule. As we discuss
in our responses to comment 18 and in section V of this document, we
also believe that anticipated prices for albuterol HFA MDIs will not
prevent patients from being adequately served by the albuterol HFA
MDIs, even without the downward price pressure of additional
competition.
---------------------------------------------------------------------------
\8\ Levalbuterol tartrate is the tartrate salt of levalbuterol,
the single R-enantiomer of albuterol, which is the active ingredient
in both CFC and HFA MDIs as a racemic mixture of the two
stereoisomers (R and S) at a 1:1 ratio. We have not determined
whether we will, in the future, consider products whose active
ingredient is a stereoisomer to be alternatives to drug products
whose active ingredient is the corresponding racemic mixture.
---------------------------------------------------------------------------
We find that supplies and production capacity for albuterol HFA
MDIs will exist at levels sufficient to meet patient needs by December
31, 2008.
D. Adequate U.S. Postmarketing Use Data is Available for the Non-ODS
Products
We did not receive any substantive comments about whether adequate
U.S. postmarketing use data is available for the albuterol HFA MDIs. We
therefore finalize our tentative conclusion that adequate U.S.
postmarketing use data is available for PROVENTIL HFA and VENTOLIN HFA,
the albuterol HFA MDIs that we considered as alternatives in this
rulemaking.
E. Patients Are Adequately Served by the Non-ODS Products
(Comment 17) A representative of GSK speaking at the PADAC meeting
described GSK's Bridges to Access program. Bridges to Access provides
GSK drugs at very low cost to lower-income individuals and families.
She also mentioned GSK's Orange Card Program and the Together Rx
program in which GSK participates. Both of these programs allow
eligible Medicare patients to purchase drugs at significantly reduced
prices. She added that GSK intended to annually distribute 2 million
VENTOLIN HFA MDIs to physicians as samples. She also said GSK expected
that many physicians would primarily provide these samples to their
lower-income patients.
A subsequent written comment from GSK provided additional
information on the Bridges to Access, Orange Card, and Together Rx
programs. The comment also describes a Ventolin HFA Savings Check
program which will distribute at least 3 million $10 coupons for use in
purchasing VENTOLIN HFA MDIs.
A representative of Schering speaking at the PADAC meeting said
Schering's SP Cares program, which is similar to GSK's Bridges to
Access program, distributes free drugs, including PROVENTIL HFA, to
low-income uninsured patients.
A written comment asserted that the Bridges to Access program
provided albuterol HFA MDIs to only approximately 1.4 percent of the
uninsured patients who need albuterol MDIs, and that the program would
have to be expanded to an extreme degree to
[[Page 17175]]
provide meaningful supplies of albuterol MDIs to all uninsured
patients. This comment also asserted that GSK's commitment to annually
provide 2 million free albuterol HFA MDIs would have a limited benefit
to the uninsured population because large numbers of uninsured patients
receive medical care in the emergency departments of hospitals rather
than in a physician's office, and it is unlikely that the free
albuterol HFA MDIs will be distributed to the emergency departments.
This comment was submitted before GSK's comment describing the Ventolin
HFA Savings Check program.
Another comment stated that any patient assistance program must be
targeted to those most in need, particularly low-income children and
minority populations, while yet another comment stressed the importance
of patient assistance programs in the transition to albuterol HFA MDIs.
We took these comments into consideration in determining that
patients would be adequately served by albuterol HFA MDIs. These
patient assistance programs have the potential to alleviate
difficulties that lower income patients may have in obtaining the
higher-priced albuterol HFA MDIs.
We agree with the comment that stated that these programs must
carefully target the populations most in need of financial assistance
in procuring needed albuterol MDIs, and we strongly recommend that GSK
and Schering take all reasonable steps to ensure that their programs
serve patients with the greatest needs, regardless of whether those
patients are treated in a physician's office, clinic, or hospital
emergency department. This targeting is particularly important in
distributing free albuterol HFA MDIs.
We believe that many of the concerns expressed by the comment
critical of GSK's Bridges to Access are valid, but that the comment
underestimates the positive effect that Bridges to Access and other
patient assistance programs can have. The estimate in the comment did
not factor in the 2 million free albuterol HFA MDIs GSK has committed
to distribute to physicians as samples and whatever free albuterol HFA
MDIs Schering may distribute. The comment also could not factor in the
effect of GSK's Ventolin HFA Savings Check program. With successful
targeting, these free albuterol HFA MDIs and $10 coupons should have a
beneficial impact; with less successful targeting the impact could be
very limited (see section VII.D.2 of this document). The comment also
ignores the potential impact of Schering's SP Cares program, which is
similar to GSK's Bridges to Access program. We recognize that the
Bridges to Access and SP Cares programs will have to expand to reach
all uninsured low and moderate income patients who will need albuterol
HFA MDIs, but the degree of expansion required would be smaller than
that described in the comment critical of the Bridges to Access
program. We also believe that GSK and Schering understand the need to
expand these programs, and that this understanding was implicit in
their testimony at the PADAC meeting and written comments (see pp. 5-6
of GSK's corrected comment of August 25, 2004 (2003P-0029/CR1) and p. 4
of Schering's comment of August 13, 2004 (2003P-0029/C31)).
(Comment 18) A speaker at the PADAC meeting said because albuterol
HFA inhalers retail for $20 more than generic albuterol CFC MDIs, an
early phaseout of albuterol HFA MDIs could result in a total $5 billion
in additional treatment costs until HFA inhalers come off patent. The
speaker also said the economic burden would fall most heavily on those
Americans least able to pay the price, with a disproportionate effect
on minorities, inner-city children, elderly patients on fixed incomes,
and the rural poor. The speaker asserted that eliminating the
essential-use designation before lower-priced generic albuterol HFA
MDIs are on the market would force many lower-income patients to
discontinue use of albuterol MDIs. The speaker also referred to a
recent study in JAMA: The Journal of the American Medical Association
indicating that increasing copayments can reduce prescription drug use
up to 32 percent. She further stated this would result in a cascading
increase in total health care costs, as patients who discontinue their
albuterol are admitted to emergency rooms and hospital wards.
A speaker representing an economics consulting firm under contract
to GSK stated at the PADAC meeting that patients would be adequately
served by albuterol HFA MDIs. He projected the average price per MDI
would increase by $9.87 and the yearly average cost per patient would
rise by $16.02. He also said adequate programs were in place to
minimize the adverse impact on lower-income patients.
Several comments from patients, health care professionals, and
other parties stated the elimination of lower-priced generic albuterol
MDIs that would result from this rule would force many patients to
discontinue the use of albuterol MDIs, with significant adverse impact
on their health, increased hospitalizations, loss of time at work, and
a worsening quality of life. Many of these comments recommended the
essential-use status of albuterol MDIs not be removed until after
generic albuterol HFA MDIs are approved and marketed.
Other comments agreed with our tentative conclusion stated in the
2004 proposed rule that patients will be adequately served by albuterol
HFA MDIs.
While we do not agree with the statement from the speaker from the
contract economic consulting firm that the average price per MDI would
only increase by $9.87 and that the yearly average cost per patient
would only rise by $16.02, we do agree with the conclusion of the
speaker that the price of albuterol HFA MDIs will not prevent patients
from being adequately served. As discussed in more detail in section V
of this document, we estimate that the retail cash price per MDI would
increase by $27 and the average yearly cost to uninsured patients would
rise $95. While higher drug prices are undesirable, we do not believe
that asthma and COPD patients will be forced to stop using albuterol
MDIs because of price increases. We believe that the programs discussed
in comment 17 of this document can, if properly utilized, provide a
safety net for lower-income patients who otherwise could not afford
this very important drug. Section V of this document contains a fuller
discussion of the economic issues presented by this rulemaking. While
we recognize that sales of albuterol MDIs may decline by approximately
1 or 2 percent as a result of this rulemaking, this decline in sales
does not necessarily equate to patients having to forgo appropriate
treatment of their asthma or COPD because of price increases. There are
many ways patients may modify their behavior in order to minimize the
impact of elimination of generic albuterol MDIs, including: increasing
their use of other asthma and COPD drugs, including non-albuterol
bronchodilators (and thereby decreasing their need for albuterol);
buying fewer MDIs to keep in different locations because they have
chosen to limit the number of MDIs they have beyond the one patients
generally carry on their person. Patients with infrequent bouts of
bronchospasm may also choose not to purchase albuterol HFA MDIs that
the patients believe they might not use, even though the patients are
financially able to do so.
(Comment 19) A speaker at the PADAC meeting said an FDA policy that
removed lower priced generic drugs from the market was contrary to the
intent of the Drug Price Competition and Patent Term Restoration Act of
1984
[[Page 17176]]
(Public Law 98-417) (Hatch-Waxman amendments). A written comment
asserted the real intent of this rulemaking was to remove generic
albuterol MDIs from the market.
We recognize that one of the consequences, although not one we
desire, of this rulemaking will be the removal, for a period of time,
of generic albuterol MDIs from the market. We agree with the speaker at
the PADAC meeting that one of the general intentions of the Hatch-
Waxman amendments is to encourage the entry of lower-priced generic
drug products into the market. However, another key purpose of the
Hatch-Waxman amendments is to encourage significant innovations in
human drugs (see generally 130 Cong. Rec. H9113-14 and H9121-22 (Sept.
6, 1984) (statements of Rep. Waxman)). The development of HFA inhalers
represents large investments of time and money by innovator firms. This
investment resulted in innovative products that significantly serve the
public health by protecting the stratospheric ozone. While the
provisions of the Hatch-Waxman amendments do not directly apply to this
rulemaking, the underlying general policy of encouraging innovation and
protecting investment in research and development does apply as much as
the policy of encouraging the availability of lower-priced generic
drugs. Most importantly, there is no specific provision in the Hatch-
Waxman amendments that prohibits us from removing generic albuterol
MDIs from the market. There is, however, specific language in the Clean
Air Act (42 U.S.C. 7671) that requires us to evaluate whether a use of
an ozone-depleting substance in a drug product is, or remains, an
essential use. We are obligated to follow the specific mandate Congress
gave us in the Clean Air Act, rather than one of two general policies
underlying another piece of legislation.
(Comment 20) One comment suggested we approve generic albuterol HFA
MDIs immediately, to lower expenses incurred by asthma patients.
Albuterol HFA MDIs are the subject of patents that may affect the
availability of generic albuterol HFA MDIs until they expire. FDA's
ability to approve generics is constrained by the patent and
exclusivity protections afforded by the Hatch-Waxman amendments. FDA
may not approve generic albuterol HFA MDIs before permitted by law.
(Comment 21) One comment expressed concern that the removal of the
essential-use designation for albuterol MDIs would lead to higher costs
to the Federal Government as a result of the Medicare prescription drug
benefits that will go into effect on January 1, 2006 (see Title I of
the Medicare Prescription Drug Improvement and Modernization Act of
2003 (Public Law 108-173, December 8, 2003)). The comment recommended
that the essential-use designation for albuterol not be removed until
generic albuterol HFA MDIs come on the market, to minimize spending by
the Federal Government.
Although cost to the Federal Government is not a criterion under
Sec. 2.125(g), the availability of prescription drug benefits under
Medicare does affect whether patients are adequately served by the non-
ODS products. In fact, the prescription drug benefits will reduce the
impact of higher prices for albuterol MDIs on Medicare-eligible
patients, who would not otherwise have prescription drug insurance
benefits. This will help ensure that patients are adequately served by
albuterol HFA MDIs.
(Comment 22) A few comments suggested that prices for albuterol HFA
MDIs would increase after the rulemaking. A GSK spokesperson at the
PADAC meeting stated that GSK had committed to a price freeze on
VENTOLIN HFA until December 31, 2007. The commitment was repeated in
GSK's subsequent written comments.
We believe that GSK's price freeze will be effective in keeping
prices at the current level through much of the transition period
before the effective date of this rule. Although Schering has not made
a similar commitment, it seems unlikel