Schedules of Controlled Substances: Placement of Lemborexant in Schedule IV, 19387-19391 [2020-07089]
Download as PDF
Federal Register / Vol. 85, No. 67 / Tuesday, April 7, 2020 / Rules and Regulations
DEPARTMENT OF JUSTICE
Drug Enforcement Administration
21 CFR Part 1308
[Docket No. DEA–600]
Schedules of Controlled Substances:
Placement of Lemborexant in Schedule
IV
Drug Enforcement
Administration, Department of Justice.
ACTION: Interim final rule with request
for comments.
AGENCY:
On December 20, 2019, the
U.S. Food and Drug Administration
approved a new drug application for
Dayvigo (lemborexant) tablets for oral
use. Lemborexant is chemically known
as (1R,2S)-2-[(2,4-dimethylpyrimidin-5yl)oxymethyl]-2-(3-fluorophenyl)-N-(5fluoropyridin-2-yl)cyclopropane-1carboxamide. The Department of Health
and Human Services provided the Drug
Enforcement Administration (DEA) with
a scheduling recommendation to place
lemborexant in schedule IV of the
Controlled Substances Act (CSA). In
accordance with the CSA, as amended
by the Improving Regulatory
Transparency for New Medical
Therapies Act, DEA is hereby issuing an
interim final rule placing lemborexant,
including its salts, isomers, and salts of
isomers whenever the existence of such
salts, isomers, and salts of isomers is
possible, in schedule IV of the CSA.
DATES: The effective date of this
rulemaking is April 7, 2020. Interested
persons may file written comments on
this rulemaking in accordance with 21
U.S.C. 811(j)(3) and 21 CFR 1308.43(g).
Electronic comments must be
submitted, and written comments must
be postmarked, on or before May 7,
2020. Commenters should be aware that
the electronic Federal Docket
Management System will not accept
comments after 11:59 p.m. Eastern Time
on the last day of the comment period.
Interested persons may file a request
for hearing or waiver of hearing in
accordance with
21 U.S.C. 811(j)(3) and 21 CFR
1308.44. Requests for hearing and
waivers of an opportunity for a hearing
or to participate in a hearing, together
with a written statement of position on
the matters of fact and law asserted in
the hearing, must be received on or
before May 7, 2020.
ADDRESSES: To ensure proper handling
of comments, please reference ‘‘Docket
No. DEA–600’’ on all correspondence,
including any attachments.
• Electronic comments: The Drug
Enforcement Administration (DEA)
khammond on DSKJM1Z7X2PROD with RULES
SUMMARY:
VerDate Sep<11>2014
16:34 Apr 06, 2020
Jkt 250001
encourages that all comments be
submitted electronically through the
Federal eRulemaking Portal, which
provides the ability to type short
comments directly into the comment
field on the web page or attach a file for
lengthier comments. Please go to https://
www.regulations.gov and follow the
online instructions at the site for
submitting comments. Upon completion
of your submission, you will receive a
Comment Tracking Number for your
comment. Please be aware that
submitted comments are not
instantaneously available for public
view on Regulations.gov. If you have
received a Comment Tracking Number,
your comment has been successfully
submitted and there is no need to
resubmit the same comment.
• Paper comments: Paper comments
that duplicate the electronic submission
are not necessary and are discouraged.
Should you wish to mail a paper
comment in lieu of an electronic
comment, it should be sent via regular
or express mail to: Drug Enforcement
Administration, Attn: DEA Federal
Register Representative/DPW, 8701
Morrissette Drive, Springfield, VA
22152.
• Hearing requests: All requests for
hearing and waivers of participation,
together with a written statement
regarding his position on the matter of
fact and law involved in such hearing,
must be sent to: Drug Enforcement
Administration. Attn: Administrator,
8701 Morrissette Drive, Springfield,
Virginia 22152. All requests for hearing
and waivers of participation should also
be sent to: (1) Drug Enforcement
Administration, Attn: Hearing Clerk/LJ.
8701 Morrissette Drive, Springfield,
Virginia 22152: and (2) Drug
Enforcement Administration, Attn: DEA
Federal Register Representative/DPW.
8701 Morrissette Drive, Springfield,
Virginia 22152.
FOR FURTHER INFORMATION CONTACT:
Scott A. Brinks, Regulatory Drafting and
Policy Support Section, Diversion
Control Division, Drug Enforcement
Administration; Mailing Address: 8701
Morrissette Drive, Springfield, Virginia
22152; Telephone: (571) 362–3261.
SUPPLEMENTARY INFORMATION:
Posting of Public Comments
Please note that all comments
received are considered part of the
public record. They will, unless
reasonable cause is given, be made
available by the Drug Enforcement
Administration (DEA) for public
inspection online at https://
www.regulations.gov. Such information
includes personal identifying
PO 00000
Frm 00011
Fmt 4700
Sfmt 4700
19387
information (such as your name,
address, etc.) voluntarily submitted by
the commenter. The Freedom of
Information Act applies to all comments
received. If you want to submit personal
identifying information (such as your
name, address, etc.) as part of your
comment, but do not want it to be made
publicly available, you must include the
phrase ‘‘PERSONAL IDENTIFYING
INFORMATION’’ in the first paragraph
of your comment. You must also place
all of the personal identifying
information you do not want made
publicly available in the first paragraph
of your comment and identify what
information you want redacted. If you
want to submit confidential business
information as part of your comment,
but do not want it to be made publicly
available, you must include the phrase
‘‘CONFIDENTIAL BUSINESS
INFORMATION’’ in the first paragraph
of your comment. You must also
prominently identify the confidential
business information to be redacted
within the comment.
Comments containing personal
identifying information and confidential
business information identified as
directed above will generally be made
publicly available in redacted form. If a
comment has so much confidential
business information or personal
identifying information that it cannot be
effectively redacted, all or part of that
comment may not be made publicly
available. Comments posted to https://
www.regulations.gov may include any
personal identifying information (such
as name, address, and phone number)
included in the text of your electronic
submission that is not identified as
directed above as confidential.
An electronic copy of this document
and supplemental information,
including the complete Department of
Health and Human Services (HHS) and
DEA eight-factor analyses, to this
interim final rule are available at https://
www.regulations.gov for easy reference.
Request for Hearing or Appearance;
Waiver
Pursuant to 21 U.S.C. 811(a), this
action is a formal rulemaking ‘‘on the
record after opportunity for a hearing.’’
Such proceedings are conducted
pursuant to the provisions of the
Administrative Procedure Act (APA), 5
U.S.C. 551–559. 21 CFR 1308.41–
1308.45; 21 CFR part 1316, subpart D.
Interested persons may file requests for
a hearing or notices of intent to
participate in a hearing in conformity
with the requirements of 21 CFR
1308.44(a) or (b), and include a
statement of interest in the proceeding
and the objections or issues, if any,
E:\FR\FM\07APR1.SGM
07APR1
19388
Federal Register / Vol. 85, No. 67 / Tuesday, April 7, 2020 / Rules and Regulations
khammond on DSKJM1Z7X2PROD with RULES
concerning which the person desires to
be heard. 21 CFR 1316.47(a). Any
interested person may file a waiver of an
opportunity for a hearing or to
participate in a hearing together with a
written statement regarding the
interested person’s position on the
matters of fact and law involved in any
hearing as set forth in 21 CFR
1308.44(c).
All requests for a hearing and waivers
of participation together with a written
statement of position on the matters of
fact and law involved in such hearing,
must be sent to DEA using the address
information provided above.
Background and Legal Authority
Under the Improving Regulatory
Transparency for New Medical
Therapies Act, Public Law 114–89, 2(b),
129 tat. 700 (2015), DEA is required to
commence an expedited scheduling
action with respect to certain new drugs
approved by the Food and Drug
Administration (FDA). As provided in
21 U.S.C. 811(j), this expedited
scheduling is required where both of the
following conditions apply: (1) The
Secretary of HHS has advised DEA that
a New Drug Application (NDA) has been
submitted for a drug that has a
stimulant, depressant, or hallucinogenic
effect on the central nervous system
(CNS), and that it appears that such
drug has an abuse potential; and (2) the
Secretary of HHS recommends that DEA
control the drug in schedule II, III, IV,
or V pursuant to 21 U.S.C. 811(a) and
(b). In these circumstances. DEA is
required to issue an interim final rule
controlling the drug within 90 days.
The law further states that the 90-day
timeframe starts the later of: (1) The date
DEA receives HHS’ scientific and
medical evaluation and scheduling
recommendation, or (2) the date DEA
receives notice of the NDA approval by
HHS. In addition, the law specifies that
the rulemaking shall become
immediately effective as an interim final
rule without requiring DEA to
demonstrate good cause therefore. Thus,
the purpose of subsection (j) is to speed
the process by which DEA schedules
newly approved drugs that are currently
either in schedule I or not controlled
(but which have sufficient abuse
potential to warrant control) so that
such drugs may be marketed without
undue delay following FDA approval.1
Subsection (j) further provides that
the interim final rule shall give
interested persons the opportunity to
1 Given the parameter of subsection (j), in DEA’s
view, it would not apply to a reformulation of a
drug containing a substance currently in schedules
II through V for which an NDA has recently been
approved.
VerDate Sep<11>2014
16:34 Apr 06, 2020
Jkt 250001
comment and to request a hearing. After
the conclusion of such proceedings,
DEA must issue a final rule in
accordance with the scheduling criteria
of subsections 21 U.S.C. 811(b), (c), and
(d) and 21 U.S.C. 812(b).
Lemborexant [(1R,2S)-2-[(2,4dimethylpyrimidin-5-yl)oxymethyl]-2(3-fluorophenyl)-N-(5-fluoropyridin-2yl)cyclopropane-1-carboxamide] is a
new molecular entity with CNS
depressant properties. Lemborexant acts
as an antagonist at both orexin-1 and
orexin-2 receptors (OX1R and OX2R,
respectively). On December 27, 2018,
Eisai, Inc., submitted an NDA for
Dayvigo (lemborexant), 5 and 10 mg oral
tablets, with the proposed dosage
suggestion of 5 mg, not to exceed a
maximum dose of 10 mg once a day. On
March 9, 2020, DEA received a letter
from FDA, dated March 5, 2020,
notifying DEA that FDA, on December
20, 2019, approved the NDA for Dayvigo
(lemborexant), under section 505(c) of
the Federal Food, Drug, and Cosmetic
Act (FDCA), for the treatment of adult
patients with insomnia, characterized
by difficulties with sleep onset and/or
sleep maintenance.2 Lemborexant has
not been marketed in any other country
for any medical indication.
Determination To Schedule
Lemborexant
On January 9, 2020, DEA received
from HHS a scientific and medical
evaluation (dated December 19, 2019)
entitled ‘‘Basis for the Recommendation
to Control Lemborexant and its Salts in
Schedule IV of the Controlled
Substances Act’’ and a scheduling
recommendation. Pursuant to 21 U.S.C.
811(b) and (c), this document contained
an eight-factor analysis of the abuse
potential, legitimate medical use, and
dependence liability of lemborexant,
along with HHS’s recommendation to
control lemborexant and its salts under
schedule IV of the CSA.
In response, DEA reviewed the
scientific and medical evaluation and
scheduling recommendation provided
by HHS, along with all other relevant
data, and completed its own eight-factor
review pursuant to 21 U.S.C. 811(c).
DEA concluded that lemborexant meets
the 21 U.S.C. 812(b)(4) criteria for
placement in schedule IV of the CSA.
Pursuant to subsection 811(j), and
based on HHS’s recommendation, the
NDA approval by HHS/FDA, and DEA’s
determination, DEA is issuing this
interim final rule to schedule
2 https://www.accessdata.fda.gov/drugsatfda_
docs/appletter/2019/212028Orig1s000ltr.pdf,
accessed March 11, 2020.
PO 00000
Frm 00012
Fmt 4700
Sfmt 4700
lemborexant as a schedule IV controlled
substance under the CSA.
Included below is a brief summary of
each factor as analyzed by HHS and
DEA, and as considered by DEA in its
scheduling action. Please note that both
DEA and HHS analyses are available in
their entirety under ‘‘Supporting
Documents’’ in the public docket for
this interim final rule at https://
www.regulations.gov, under Docket
Number ‘‘DEA–600.’’ Full analysis of,
and citations to, the information
referenced in the summary may also be
found in the supporting and related
material.
1. Its Actual or Relative Potential for
Abuse
As noted by HHS, lemborexant is a
new molecular entity that has not been
marketed in the United States or any
other country. Thus, evidence regarding
its diversion, illicit manufacture, or
deliberate ingestion is currently lacking.
DEA notes that there are no reports for
lemborexant in the National Forensic
Laboratory Information System
(NFLIS),3 which collects drug
identification results from drug cases
submitted to and analyzed by state and
local forensic laboratories. There were
also no reports in STARLiMS,4 DEA’s
laboratory drug evidence data system of
record.
As stated by HHS, lemborexant is a
sedative that is highly selective for both
the OX1R and OX2R receptors and has
little to no affinity to other CNS receptor
sites associated with abuse potential. In
a clinical study investigating the abuse
potential of lemborexant, HHS
concluded that lemborexant produced
subjective responses that were similar to
those for the schedule IV sedative
suvorexant.
3 NFLIS represents an important resource in
monitoring illicit drug trafficking, including the
diversion of legally manufactured pharmaceuticals
into illegal markets. NFLIS is a comprehensive
information system that includes data from forensic
laboratories that handle more than 96% of an
estimated 1.0 million distinct annual State and
local drug analysis cases. NFLIS includes drug
chemistry results from completed analyses only.
While NFLIS data is not direct evidence of abuse,
it can lead to an inference that a drug has been
diverted and abused. See 76 FR 77330, 77332, Dec.
12, 2011. NFLIS data were queried January 15,
2020.
4 On October 1, 2014, DEA implemented
STARLiMS (a web-based, commercial laboratory
information management system) to replace the
System to Retrieve Information from Drug Evidence
(STRIDE) as its laboratory drug evidence data
system of record. DEA laboratory data submitted
after September 30, 2014, are reposited in
STARLiMS. STARLiMS data were queried January
15, 2020.
E:\FR\FM\07APR1.SGM
07APR1
khammond on DSKJM1Z7X2PROD with RULES
Federal Register / Vol. 85, No. 67 / Tuesday, April 7, 2020 / Rules and Regulations
2. Scientific Evidence of Its
Pharmacological Effects, if Known
According to HHS, lemborexant
primarily acts as a dual orexin receptor
antagonist and does not bind with any
other CNS receptors that are typically
associated with abuse, such as opioid or
cannabinoid receptors, GABAergic, and
other ion channels. According to HHS,
general behavioral studies in animals
indicate that acute oral administration
of lemborexant using supratherapeutic
doses (100, 300, and 1000 mg/kg),
produced no overt behavioral changes
in hindlimb foot splay, forelimb grip
strength, hindlimb grip strength, and
rectal temperature in cage-side, handheld, and open-field using functional
observational methods. Additionally,
lemborexant, even at supratherapeutic
doses, does not significantly impair
motor coordination. In drug
discrimination studies, which are used
to predict subjective effects in humans,
lemborexant and suvorexant (a schedule
IV substance which is another known
dual orexin receptor antagonist) did not
fully mimic stimulus effects of
zolpidem, a schedule IV sedative. In a
self-administration study in rhesus
monkeys, the rewarding effects of
lemborexant were insufficient to
produce reinforcement.
According to HHS, in a human abuse
potential (HAP) study conducted by the
Sponsor, lemborexant (at therapeutic
and supratherapeutic doses) produced
statistically significant increases on
positive subjective measures in the
bipolar visual analog scale (VAS) (i.e.,
Drug Liking, Overall Drug Liking, Good
Effects, High, Stoned, and Take Drug
Again) that were greater than placebo
and statistically similar to suvorexant
and/or zolpidem (schedule IV
substances). With respect to two
subjective measures, such as drowsiness
and sedation, lemborexant, similar to
zolpidem and suvorexant, produced
statistically significantly greater scores
than placebo. HHS concluded that
lemborexant produces positive
subjective effects and has an abuse
potential similar to that of schedule IV
sedatives, such as suvorexant and
zolpidem, which were used as positive
controls in the aforementioned study.
According to HHS, in multiple-dose
Phase I studies, lemborexant produced
dose-dependent ‘‘abnormal dreams.’’
There were few incidents of abuserelated adverse events (AEs), such as
‘‘euphoric mood,’’ ‘‘disturbance in
attention,’’ and ‘‘memory impairment.’’
Furthermore, in Phase 2 clinical studies,
lemborexant produced dose dependent
somnolence. This response was
considered appropriate given the
VerDate Sep<11>2014
16:34 Apr 06, 2020
Jkt 250001
proposed therapeutic use for
lemborexant as a treatment for
insomnia. No additional abuse-related
AEs were reported by participants at an
incidence greater than 1.0 percent. As
per the adverse event data obtained
from Phase 1 and Phase 2⁄3 clinical
safety and efficacy trials, there were no
significant abuse-related signals.
3. The State of Current Scientific
Knowledge Regarding the Drug or Other
Substance
Lemborexant is a new molecular
entity, chemically known as (1R,2S)-2[(2,4-dimethylpyrimidin-5yl)oxymethyl]-2-(3-fluorophenyl)-N-(5fluoropyridin-2-yl)cyclopropane-1carboxamide. It is nearly insoluble in
water and heptane; ‘‘sparingly’’ soluble
in 1-octanol; very soluble in dimethyl
sulfoxide; and freely soluble in
methanol, acetone, ethyl acetate, and
benzyl alcohol. Additionally,
lemborexant is soluble in acetonitrile
and ethanol. On December 20, 2019,
FDA approved an NDA for lemborexant
for medical use for the treatment of
insomnia in adult patients with
insomnia characterized by difficulties
with sleep onset and/or sleep
maintenance. Thus, lemborexant has an
accepted medical use in the United
States. Lemborexant will be marketed as
a once daily tablet taken before bedtime,
with at least 7 hours remaining before
the planned time of awakening. The
recommended dose for lemborexant is 5
mg; however, the dosage may be
increased to 10 mg based on clinical
response and tolerability.5
4. Its History and Current Pattern of
Abuse
There is no information available
relating to the history and current
pattern of abuse of lemborexant because
this drug is not currently marketed in
any country. As stated in Factor 1, DEA
notes that there has been no diversion
of lemborexant based on NFLIS and
STARLiMS data. HHS notes that
lemborexant produces abuse-related
signals and abuse potential similar to
that of the schedule IV controlled
substance suvorexant.
5. The Scope, Duration, and
Significance of Abuse
Lemborexant as a single active
ingredient in a drug product is currently
not marketed in any country. Thus,
information on the scope, duration, and
significance of abuse for lemborexant is
lacking. As described in Factor 4, NFLIS
5 https://www.accessdata.fda.gov/drugsatfda_
docs/label/2019/212028s000lbl.pdf, accessed
February 6, 2020.
PO 00000
Frm 00013
Fmt 4700
Sfmt 4700
19389
and STARLiMS databases have no
evidence of law enforcement encounters
of lemborexant. However, as HHS notes,
data from preclinical and clinical
studies summarized in Factor 2 indicate
that the scope, duration, and
significance of abuse for lemborexant
would be similar to those of suvorexant,
a schedule IV substance. As stated by
HHS, data from animal and human
studies indicate that lemborexant has an
abuse potential similar to that of
suvorexant.
6. What, if Any, Risk There Is to the
Public Health
As stated by HHS, the public health
risk associated with lemborexant is
largely a risk to the individual due to its
abuse potential. The extent of abuse
potential of a drug is an indication of its
public health risk. Data from the
preclinical and clinical studies suggest
that the abuse potential of lemborexant
is similar to schedule IV substances,
such as suvorexant and zolpidem.
Lemborexant, similar to schedule IV
sedatives, is likely to pose a public
health risk of abuse upon marketing in
the United States.
7. Its Psychic or Physiological
Dependence Liability
Physical dependence for lemborexant
was tested in a rat physical dependence
study and during Phase 2⁄3 clinical
trials. Based on the data from these
studies, HHS concluded that
lemborexant lacked physical
dependence potential. According to
HHS, in the HAP study (presented in
Factor 2), lemborexant administration
was associated with positive subjective
effects as assessed by participant
responses to measures of Drug Liking,
Overall Drug Liking, Good Drug Effects,
High, Stoned, and Take Drug Again. The
results indicated that the responses for
lemborexant were similar to that of
positive control drugs, such as zolpidem
and suvorexant. Thus, it is likely that
lemborexant can produce psychic
dependence similar to that of schedule
IV drugs, such as zolpidem and
suvorexant.
8. Whether the Substance Is an
Immediate Precursor of a Substance
Already Controlled Under the CSA
Lemborexant is not an immediate
precursor of any controlled substance,
as defined in 21 U.S.C. 802(23).
Conclusion
After considering the scientific and
medical evaluation conducted by HHS,
HHS’s recommendation, and its own
eight-factor analysis, DEA has
determined that these facts and all
E:\FR\FM\07APR1.SGM
07APR1
19390
Federal Register / Vol. 85, No. 67 / Tuesday, April 7, 2020 / Rules and Regulations
khammond on DSKJM1Z7X2PROD with RULES
relevant data constitute substantial
evidence of a potential for abuse of
lemborexant. As such, DEA hereby
schedules lemborexant as a controlled
substance under the CSA.
Determination of Appropriate Schedule
The CSA lists the findings required to
place a drug or other substance in any
particular schedule (I, II, III, IV, or V).
21 U.S.C. 812(b). After consideration of
the analysis and recommendation of the
Assistant Secretary for Health of HHS
and review of all available data, the
Acting Administrator of DEA, pursuant
to 21 U.S.C. 812(b)(4), finds that:
1. Lemborexant has a low potential
for abuse relative to the drugs or other
substances in schedule III.
Lemborexant is a dual orexin receptor
antagonist, which produces sedation in
human behavioral studies. In the HAP
study, therapeutic and supratherapeutic
doses of lemborexant produced positive
subjective responses such as Drug
Liking, Overall Drug Liking, Good Drug
Effects, High, Stoned, and Take Drug
Again that were statistically
significantly greater than those
produced by placebo. These responses
of lemborexant are similar to those
produced by schedule IV drugs
suvorexant and zolpidem. Because
lemborexant is similar to zolpidem and
suvorexant in its abuse potential,
lemborexant has a low potential for
abuse relative to the drugs and other
listed substances in schedule III of the
CSA.
2. Lemborexant has a currently
accepted medical use in the United
States.
FDA recently approved lemborexant
oral tablets for the treatment of adult
patients with insomnia, characterized
by difficulties with sleep onset and/or
sleep maintenance. Thus, lemborexant
has a currently accepted medical use in
treatment in the United States.
3. Lemborexant may lead to limited
physical dependence or psychological
dependence relative to the drugs or
other substances in schedule III.
As stated by HHS, data from a rat
physical dependence study, as well as a
physical dependence assessment at the
conclusion of the Phase 2⁄3 clinical
trials, showed that lemborexant did not
produce withdrawal symptoms
indicative of physical dependence. In
the HAP study, lemborexant produced
positive subjective responses to
measures such as Drug Liking, Overall
Drug Liking, Good Drug Effects, High,
Stoned, and Take Drug Again that were
greater than placebo and similar to that
of the schedule IV drugs zolpidem and
suvorexant. This data suggests that
lemborexant can produce psychic
VerDate Sep<11>2014
16:34 Apr 06, 2020
Jkt 250001
dependence to a similar extent as
zolpidem and suvorexant. Thus, abuse
of lemborexant may lead to limited
psychological dependence relative to
the drugs or other substances in
schedule III of the CSA.
Based on these findings, the Acting
Administrator of DEA concludes that
lemborexant warrants control in
schedule IV of the CSA. 21 U.S.C.
812(b)(4).
Requirements for Handling
Lemborexant
Lemborexant is subject to the CSA’s
schedule IV regulatory controls and
administrative, civil, and criminal
sanctions applicable to the manufacture,
distribution, reverse distribution,
dispensing, importing, exporting,
research, and conduct of instructional
activities and chemical analysis with,
and possession involving schedule IV
substances, including the following:
1. Registration. Any person who
handles (manufactures, distributes,
reverse distributes, dispenses, imports,
exports, engages in research, or
conducts instructional activities or
chemical analysis with, or possesses)
lemborexant, or who desires to handle
lemborexant, must be registered with
DEA to conduct such activities pursuant
to 21 U.S.C. 822, 823, 957, and 958 and
in accordance with 21 CFR parts 1301
and 1312. Any person who currently
handles or intends to handle
lemborexant and is not registered with
DEA must submit an application for
registration and may not continue to
handle lemborexant, unless DEA has
approved that application for
registration, pursuant to 21 U.S.C. 822,
823, 957, and 958, and in accordance
with 21 CFR parts 1301 and 1312.
2. Disposal of stocks. Any person who
does not desire or is not able to
maintain a schedule IV registration must
surrender all quantities of currently
held lemborexant or may transfer all
quantities of lemborexant to a person
registered with DEA in accordance with
21 CFR part 1317, in additional to all
other applicable Federal, State, local,
and tribal laws.
3. Security. Lemborexant is subject to
schedule III–V security requirements
and must be handled and stored in
accordance with 21 CFR 1301.71–
1301.77. Non-practitioners handling
lemborexant must also comply with the
employee screening requirements of
1301.90–1301.93.
4. Labeling and Packaging. All labels,
labeling, and packaging for commercial
containers of lemborexant must comply
with 21 U.S.C. 825 and 958(e), and be
in accordance with 21 CFR part 1302.
PO 00000
Frm 00014
Fmt 4700
Sfmt 4700
5. Inventory. Every DEA registrant
who possesses any quantity of
lemborexant must take an inventory of
lemborexant on hand, pursuant to 21
U.S.C. 827 and 958, and in accordance
with 21 CFR 1304.03, 1304.04, and
1304.11.
Any person who becomes registered
with DEA to handle lemborexant must
take an initial inventory of all stocks of
controlled substances (including
lemborexant) on hand on the date the
registrant first engages in the handling
of controlled substances, pursuant to 21
U.S.C. 827 and 958(e), and in
accordance with 21 CFR 1304.03,
1304.04, and 1304.11.
After the initial inventory, every DEA
registrant must take a new inventory of
all stocks of controlled substances
(including lemborexant) on hand at least
every two years, pursuant to 21 U.S.C.
827 and 958(e), and in accordance with
21 CFR 1304.03, 1304.04, and 1304.11.
6. Records and Reports. DEA
registrants must maintain records and
submit reports for lemborexant,
pursuant to 21 U.S.C. 827, 832(a), and
958(e), and in accordance with 21 CFR
1301.74(b) and (c) and parts 1304, 1312,
and 1317.
7. Prescriptions. All prescriptions for
lemborexant, or products containing
lemborexant, must comply with 21
U.S.C. 829, and be issued in accordance
with 21 CFR parts 1306 and 1311,
subpart C.
8. Manufacturing and Distributing. In
addition to the general requirements of
the CSA and DEA regulations that are
applicable to manufacturers and
distributors of schedule IV controlled
substances, such registrants should be
advised that (consistent with the
foregoing considerations) any
manufacturing or distribution of
lemborexant may only be for the
legitimate purposes consistent with the
drug’s labeling, or for research activities
authorized by the FDCA and the CSA.
9. Importation and Exportation. All
importation and exportation of
lemborexant must be in compliance
with 21 U.S.C. 952, 953, 957, and 958,
and in accordance with 21 CFR part
1312.
10. Liability. Any activity involving
lemborexant not authorized by, or in
violation of, the CSA or its
implementing regulations, is unlawful,
and may subject the person to
administrative, civil, and/or criminal
sanctions.
Regulatory Analyses
Administrative Procedure Act
Section 553 of the APA (5 U.S.C. 553)
generally requires notice and comment
E:\FR\FM\07APR1.SGM
07APR1
Federal Register / Vol. 85, No. 67 / Tuesday, April 7, 2020 / Rules and Regulations
for rulemakings. However, 21 U.S.C.
811(j) provides that in cases where a
certain new drug is: (1) Approved by
HHS, under section 505(c) of the FDCA,
and (2) HHS recommends control in
CSA schedule II–V, DEA shall issue an
interim final rule scheduling the drug
within 90 days. As stated in the legal
authority section, the 90-day time frame
is the later of: (1) The date DEA receives
HHS’s scientific and medical
evaluation/scheduling recommendation,
or (2) the date DEA receives notice of
the NDA approval by HHS.
Additionally, the law specifies that the
rulemaking shall become immediately
effective as an interim final rule without
requiring DEA to demonstrate good
cause.
Executive Orders 12866, 13563, and
13771, Regulatory Planning and Review,
Improving Regulation and Regulatory
Review, and Reducing Regulation and
Controlling Regulatory Costs
In accordance with 21 U.S.C. 811(a)
and (j), this scheduling action is subject
to formal rulemaking procedures
performed ‘‘on the record after
opportunity for a hearing,’’ which are
conducted pursuant to the provisions of
5 U.S.C. 556 and 557. The CSA sets
forth the procedures and criteria for
scheduling a drug or other substance.
Such actions are exempt from review by
the Office of Management and Budget
(OMB) pursuant to section 3(d)(1) of
Executive Order 12866 and the
principles reaffirmed in Executive Order
13563.
This interim final rule is not an
Executive Order 13771 regulatory action
pursuant to Executive Order 12866 and
OMB guidance.6
khammond on DSKJM1Z7X2PROD with RULES
Executive Order 12988, Civil Justice
Reform
This regulation meets the applicable
standards set forth in sections 3(a) and
3(b)(2) of Executive Order 12988 to
eliminate drafting errors and ambiguity,
minimize litigation, provide a clear legal
standard for affected conduct, and
promote simplification and burden
reduction.
Executive Order 13132, Federalism
This rulemaking does not have
federalism implications warranting the
application of Executive Order 13132.
The rule does not have substantial
direct effects on the States, on the
relationship between the national
government and the States, or on the
6 Office of Mgmt. & Budget, Exec. Office of The
President, Interim Guidance Implementing Section
2 of the Executive Order of January 30, 2017 Titled
‘‘Reducing Regulation and Controlling Regulatory
Costs’’ (Feb. 2, 2017).
VerDate Sep<11>2014
16:34 Apr 06, 2020
Jkt 250001
distribution of power and
responsibilities among the various
levels of government.
Executive Order 13175, Consultation
and Coordination With Indian Tribal
Governments
This rule does not have tribal
implications warranting the application
of Executive Order 13175. It does not
have substantial direct effects on one or
more Indian tribes, on the relationship
between the Federal government and
Indian tribes, or on the distribution of
power and responsibilities between the
Federal government and Indian tribes.
Regulatory Flexibility Act
The Regulatory Flexibility Act (RFA)
(5 U.S.C. 601–612) applies to rules that
are subject to notice and comment
under section 553(b) of the APA. Under
21 U.S.C. 811(j), DEA is not required to
publish a general notice of proposed
rulemaking. Consequently, the RFA
does not apply to this interim final rule.
Unfunded Mandates Reform Act of 1995
In accordance with the Unfunded
Mandates Reform Act (UMRA) of 1995,
2 U.S.C. 1501 et seq., DEA has
determined that this action would not
result in 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 1 year.’’
Therefore, neither a Small Government
Agency Plan nor any other action is
required under UMRA of 1995.
Paperwork Reduction Act of 1995
This action does not impose a new
collection of information requirement
under the Paperwork Reduction Act of
1995. 44 U.S.C. 3501–3521. This action
would not impose recordkeeping or
reporting requirements on State or local
governments, individuals, businesses, or
organizations. An agency may not
conduct or sponsor, and a person is not
required to respond to, a collection of
information unless it displays a
currently valid OMB control number.
Congressional Review Act
This rule is not a major rule as
defined by the Congressional Review
Act (CRA), 5 U.S.C. 804. This rule will
not result in: An annual effect on the
economy of $100 million or more; a
major increase in costs or prices for
consumers, individual industries,
Federal, State, or local government
agencies, or geographic regions; or
significant adverse effects on
competition, employment, investment,
productivity, innovation, or on the
PO 00000
Frm 00015
Fmt 4700
Sfmt 4700
19391
ability of United States-based
companies to compete with foreignbased companies in domestic and
export markets. However, pursuant to
the CRA, DEA has submitted a copy of
this interim final rule to both Houses of
Congress and to the Comptroller
General.
List of Subjects in 21 CFR Part 1308
Administrative practice and
procedure, Drug traffic control,
Reporting and recordkeeping
requirements.
For the reasons set out above, DEA
amends 21 CFR part 1308 as follows:
PART 1308—SCHEDULES OF
CONTROLLED SUBSTANCES
1. The authority citation for 21 CFR
part 1308 continues to read as follows:
■
Authority: 21 U.S.C. 811, 812, 871(b),
956(b), unless otherwise noted.
2. Amend § 1308.14 by:
a. Redesignating paragraphs (c)(30)
through (c)(56) as (c)(31) through (c)(57);
and
■ b. Adding new paragraph (c)(30).
The addition reads as follows:
■
■
§ 1308.14
*
Schedule IV.
*
*
(c) * * *
*
*
(30) Lemborexant .............................
*
*
*
*
2245
*
Uttam Dhillon,
Acting Administrator.
[FR Doc. 2020–07089 Filed 4–6–20; 8:45 am]
BILLING CODE 4410–09–P
DEPARTMENT OF LABOR
Mine Safety and Health Administration
30 CFR Parts 56 and 57
[Docket No. MSHA–2019–0007]
RIN 1219–AB88
Electronic Detonators
Mine Safety and Health
Administration, Labor.
ACTION: Direct final rule; confirmation of
effective date.
AGENCY:
The Mine Safety and Health
Administration (MSHA) confirms the
effective date for the direct final rule,
Electronic Detonators, which was
published on January 14, 2020, to revise
certain safety standards for explosives at
metal and nonmetal mines.
DATES: The effective date of the final
rule published in the Federal Register
SUMMARY:
E:\FR\FM\07APR1.SGM
07APR1
Agencies
[Federal Register Volume 85, Number 67 (Tuesday, April 7, 2020)]
[Rules and Regulations]
[Pages 19387-19391]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-07089]
[[Page 19387]]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF JUSTICE
Drug Enforcement Administration
21 CFR Part 1308
[Docket No. DEA-600]
Schedules of Controlled Substances: Placement of Lemborexant in
Schedule IV
AGENCY: Drug Enforcement Administration, Department of Justice.
ACTION: Interim final rule with request for comments.
-----------------------------------------------------------------------
SUMMARY: On December 20, 2019, the U.S. Food and Drug Administration
approved a new drug application for Dayvigo (lemborexant) tablets for
oral use. Lemborexant is chemically known as (1R,2S)-2-[(2,4-
dimethylpyrimidin-5-yl)oxymethyl]-2-(3-fluorophenyl)-N-(5-
fluoropyridin-2-yl)cyclopropane-1-carboxamide. The Department of Health
and Human Services provided the Drug Enforcement Administration (DEA)
with a scheduling recommendation to place lemborexant in schedule IV of
the Controlled Substances Act (CSA). In accordance with the CSA, as
amended by the Improving Regulatory Transparency for New Medical
Therapies Act, DEA is hereby issuing an interim final rule placing
lemborexant, including its salts, isomers, and salts of isomers
whenever the existence of such salts, isomers, and salts of isomers is
possible, in schedule IV of the CSA.
DATES: The effective date of this rulemaking is April 7, 2020.
Interested persons may file written comments on this rulemaking in
accordance with 21 U.S.C. 811(j)(3) and 21 CFR 1308.43(g). Electronic
comments must be submitted, and written comments must be postmarked, on
or before May 7, 2020. Commenters should be aware that the electronic
Federal Docket Management System will not accept comments after 11:59
p.m. Eastern Time on the last day of the comment period.
Interested persons may file a request for hearing or waiver of
hearing in accordance with
21 U.S.C. 811(j)(3) and 21 CFR 1308.44. Requests for hearing and
waivers of an opportunity for a hearing or to participate in a hearing,
together with a written statement of position on the matters of fact
and law asserted in the hearing, must be received on or before May 7,
2020.
ADDRESSES: To ensure proper handling of comments, please reference
``Docket No. DEA-600'' on all correspondence, including any
attachments.
Electronic comments: The Drug Enforcement Administration
(DEA) encourages that all comments be submitted electronically through
the Federal eRulemaking Portal, which provides the ability to type
short comments directly into the comment field on the web page or
attach a file for lengthier comments. Please go to https://www.regulations.gov and follow the online instructions at the site for
submitting comments. Upon completion of your submission, you will
receive a Comment Tracking Number for your comment. Please be aware
that submitted comments are not instantaneously available for public
view on Regulations.gov. If you have received a Comment Tracking
Number, your comment has been successfully submitted and there is no
need to resubmit the same comment.
Paper comments: Paper comments that duplicate the
electronic submission are not necessary and are discouraged. Should you
wish to mail a paper comment in lieu of an electronic comment, it
should be sent via regular or express mail to: Drug Enforcement
Administration, Attn: DEA Federal Register Representative/DPW, 8701
Morrissette Drive, Springfield, VA 22152.
Hearing requests: All requests for hearing and waivers of
participation, together with a written statement regarding his position
on the matter of fact and law involved in such hearing, must be sent
to: Drug Enforcement Administration. Attn: Administrator, 8701
Morrissette Drive, Springfield, Virginia 22152. All requests for
hearing and waivers of participation should also be sent to: (1) Drug
Enforcement Administration, Attn: Hearing Clerk/LJ. 8701 Morrissette
Drive, Springfield, Virginia 22152: and (2) Drug Enforcement
Administration, Attn: DEA Federal Register Representative/DPW. 8701
Morrissette Drive, Springfield, Virginia 22152.
FOR FURTHER INFORMATION CONTACT: Scott A. Brinks, Regulatory Drafting
and Policy Support Section, Diversion Control Division, Drug
Enforcement Administration; Mailing Address: 8701 Morrissette Drive,
Springfield, Virginia 22152; Telephone: (571) 362-3261.
SUPPLEMENTARY INFORMATION:
Posting of Public Comments
Please note that all comments received are considered part of the
public record. They will, unless reasonable cause is given, be made
available by the Drug Enforcement Administration (DEA) for public
inspection online at https://www.regulations.gov. Such information
includes personal identifying information (such as your name, address,
etc.) voluntarily submitted by the commenter. The Freedom of
Information Act applies to all comments received. If you want to submit
personal identifying information (such as your name, address, etc.) as
part of your comment, but do not want it to be made publicly available,
you must include the phrase ``PERSONAL IDENTIFYING INFORMATION'' in the
first paragraph of your comment. You must also place all of the
personal identifying information you do not want made publicly
available in the first paragraph of your comment and identify what
information you want redacted. If you want to submit confidential
business information as part of your comment, but do not want it to be
made publicly available, you must include the phrase ``CONFIDENTIAL
BUSINESS INFORMATION'' in the first paragraph of your comment. You must
also prominently identify the confidential business information to be
redacted within the comment.
Comments containing personal identifying information and
confidential business information identified as directed above will
generally be made publicly available in redacted form. If a comment has
so much confidential business information or personal identifying
information that it cannot be effectively redacted, all or part of that
comment may not be made publicly available. Comments posted to https://www.regulations.gov may include any personal identifying information
(such as name, address, and phone number) included in the text of your
electronic submission that is not identified as directed above as
confidential.
An electronic copy of this document and supplemental information,
including the complete Department of Health and Human Services (HHS)
and DEA eight-factor analyses, to this interim final rule are available
at https://www.regulations.gov for easy reference.
Request for Hearing or Appearance; Waiver
Pursuant to 21 U.S.C. 811(a), this action is a formal rulemaking
``on the record after opportunity for a hearing.'' Such proceedings are
conducted pursuant to the provisions of the Administrative Procedure
Act (APA), 5 U.S.C. 551-559. 21 CFR 1308.41-1308.45; 21 CFR part 1316,
subpart D. Interested persons may file requests for a hearing or
notices of intent to participate in a hearing in conformity with the
requirements of 21 CFR 1308.44(a) or (b), and include a statement of
interest in the proceeding and the objections or issues, if any,
[[Page 19388]]
concerning which the person desires to be heard. 21 CFR 1316.47(a). Any
interested person may file a waiver of an opportunity for a hearing or
to participate in a hearing together with a written statement regarding
the interested person's position on the matters of fact and law
involved in any hearing as set forth in 21 CFR 1308.44(c).
All requests for a hearing and waivers of participation together
with a written statement of position on the matters of fact and law
involved in such hearing, must be sent to DEA using the address
information provided above.
Background and Legal Authority
Under the Improving Regulatory Transparency for New Medical
Therapies Act, Public Law 114-89, 2(b), 129 tat. 700 (2015), DEA is
required to commence an expedited scheduling action with respect to
certain new drugs approved by the Food and Drug Administration (FDA).
As provided in 21 U.S.C. 811(j), this expedited scheduling is required
where both of the following conditions apply: (1) The Secretary of HHS
has advised DEA that a New Drug Application (NDA) has been submitted
for a drug that has a stimulant, depressant, or hallucinogenic effect
on the central nervous system (CNS), and that it appears that such drug
has an abuse potential; and (2) the Secretary of HHS recommends that
DEA control the drug in schedule II, III, IV, or V pursuant to 21
U.S.C. 811(a) and (b). In these circumstances. DEA is required to issue
an interim final rule controlling the drug within 90 days.
The law further states that the 90-day timeframe starts the later
of: (1) The date DEA receives HHS' scientific and medical evaluation
and scheduling recommendation, or (2) the date DEA receives notice of
the NDA approval by HHS. In addition, the law specifies that the
rulemaking shall become immediately effective as an interim final rule
without requiring DEA to demonstrate good cause therefore. Thus, the
purpose of subsection (j) is to speed the process by which DEA
schedules newly approved drugs that are currently either in schedule I
or not controlled (but which have sufficient abuse potential to warrant
control) so that such drugs may be marketed without undue delay
following FDA approval.\1\
---------------------------------------------------------------------------
\1\ Given the parameter of subsection (j), in DEA's view, it
would not apply to a reformulation of a drug containing a substance
currently in schedules II through V for which an NDA has recently
been approved.
---------------------------------------------------------------------------
Subsection (j) further provides that the interim final rule shall
give interested persons the opportunity to comment and to request a
hearing. After the conclusion of such proceedings, DEA must issue a
final rule in accordance with the scheduling criteria of subsections 21
U.S.C. 811(b), (c), and (d) and 21 U.S.C. 812(b).
Lemborexant [(1R,2S)-2-[(2,4-dimethylpyrimidin-5-yl)oxymethyl]-2-
(3-fluorophenyl)-N-(5-fluoropyridin-2-yl)cyclopropane-1-carboxamide] is
a new molecular entity with CNS depressant properties. Lemborexant acts
as an antagonist at both orexin-1 and orexin-2 receptors (OX1R and
OX2R, respectively). On December 27, 2018, Eisai, Inc., submitted an
NDA for Dayvigo (lemborexant), 5 and 10 mg oral tablets, with the
proposed dosage suggestion of 5 mg, not to exceed a maximum dose of 10
mg once a day. On March 9, 2020, DEA received a letter from FDA, dated
March 5, 2020, notifying DEA that FDA, on December 20, 2019, approved
the NDA for Dayvigo (lemborexant), under section 505(c) of the Federal
Food, Drug, and Cosmetic Act (FDCA), for the treatment of adult
patients with insomnia, characterized by difficulties with sleep onset
and/or sleep maintenance.\2\ Lemborexant has not been marketed in any
other country for any medical indication.
---------------------------------------------------------------------------
\2\ https://www.accessdata.fda.gov/drugsatfda_docs/appletter/2019/212028Orig1s000ltr.pdf, accessed March 11, 2020.
---------------------------------------------------------------------------
Determination To Schedule Lemborexant
On January 9, 2020, DEA received from HHS a scientific and medical
evaluation (dated December 19, 2019) entitled ``Basis for the
Recommendation to Control Lemborexant and its Salts in Schedule IV of
the Controlled Substances Act'' and a scheduling recommendation.
Pursuant to 21 U.S.C. 811(b) and (c), this document contained an eight-
factor analysis of the abuse potential, legitimate medical use, and
dependence liability of lemborexant, along with HHS's recommendation to
control lemborexant and its salts under schedule IV of the CSA.
In response, DEA reviewed the scientific and medical evaluation and
scheduling recommendation provided by HHS, along with all other
relevant data, and completed its own eight-factor review pursuant to 21
U.S.C. 811(c). DEA concluded that lemborexant meets the 21 U.S.C.
812(b)(4) criteria for placement in schedule IV of the CSA.
Pursuant to subsection 811(j), and based on HHS's recommendation,
the NDA approval by HHS/FDA, and DEA's determination, DEA is issuing
this interim final rule to schedule lemborexant as a schedule IV
controlled substance under the CSA.
Included below is a brief summary of each factor as analyzed by HHS
and DEA, and as considered by DEA in its scheduling action. Please note
that both DEA and HHS analyses are available in their entirety under
``Supporting Documents'' in the public docket for this interim final
rule at https://www.regulations.gov, under Docket Number ``DEA-600.''
Full analysis of, and citations to, the information referenced in the
summary may also be found in the supporting and related material.
1. Its Actual or Relative Potential for Abuse
As noted by HHS, lemborexant is a new molecular entity that has not
been marketed in the United States or any other country. Thus, evidence
regarding its diversion, illicit manufacture, or deliberate ingestion
is currently lacking. DEA notes that there are no reports for
lemborexant in the National Forensic Laboratory Information System
(NFLIS),\3\ which collects drug identification results from drug cases
submitted to and analyzed by state and local forensic laboratories.
There were also no reports in STARLiMS,\4\ DEA's laboratory drug
evidence data system of record.
---------------------------------------------------------------------------
\3\ NFLIS represents an important resource in monitoring illicit
drug trafficking, including the diversion of legally manufactured
pharmaceuticals into illegal markets. NFLIS is a comprehensive
information system that includes data from forensic laboratories
that handle more than 96% of an estimated 1.0 million distinct
annual State and local drug analysis cases. NFLIS includes drug
chemistry results from completed analyses only. While NFLIS data is
not direct evidence of abuse, it can lead to an inference that a
drug has been diverted and abused. See 76 FR 77330, 77332, Dec. 12,
2011. NFLIS data were queried January 15, 2020.
\4\ On October 1, 2014, DEA implemented STARLiMS (a web-based,
commercial laboratory information management system) to replace the
System to Retrieve Information from Drug Evidence (STRIDE) as its
laboratory drug evidence data system of record. DEA laboratory data
submitted after September 30, 2014, are reposited in STARLiMS.
STARLiMS data were queried January 15, 2020.
---------------------------------------------------------------------------
As stated by HHS, lemborexant is a sedative that is highly
selective for both the OX1R and OX2R receptors and has little to no
affinity to other CNS receptor sites associated with abuse potential.
In a clinical study investigating the abuse potential of lemborexant,
HHS concluded that lemborexant produced subjective responses that were
similar to those for the schedule IV sedative suvorexant.
[[Page 19389]]
2. Scientific Evidence of Its Pharmacological Effects, if Known
According to HHS, lemborexant primarily acts as a dual orexin
receptor antagonist and does not bind with any other CNS receptors that
are typically associated with abuse, such as opioid or cannabinoid
receptors, GABAergic, and other ion channels. According to HHS, general
behavioral studies in animals indicate that acute oral administration
of lemborexant using supratherapeutic doses (100, 300, and 1000 mg/kg),
produced no overt behavioral changes in hindlimb foot splay, forelimb
grip strength, hindlimb grip strength, and rectal temperature in cage-
side, hand-held, and open-field using functional observational methods.
Additionally, lemborexant, even at supratherapeutic doses, does not
significantly impair motor coordination. In drug discrimination
studies, which are used to predict subjective effects in humans,
lemborexant and suvorexant (a schedule IV substance which is another
known dual orexin receptor antagonist) did not fully mimic stimulus
effects of zolpidem, a schedule IV sedative. In a self-administration
study in rhesus monkeys, the rewarding effects of lemborexant were
insufficient to produce reinforcement.
According to HHS, in a human abuse potential (HAP) study conducted
by the Sponsor, lemborexant (at therapeutic and supratherapeutic doses)
produced statistically significant increases on positive subjective
measures in the bipolar visual analog scale (VAS) (i.e., Drug Liking,
Overall Drug Liking, Good Effects, High, Stoned, and Take Drug Again)
that were greater than placebo and statistically similar to suvorexant
and/or zolpidem (schedule IV substances). With respect to two
subjective measures, such as drowsiness and sedation, lemborexant,
similar to zolpidem and suvorexant, produced statistically
significantly greater scores than placebo. HHS concluded that
lemborexant produces positive subjective effects and has an abuse
potential similar to that of schedule IV sedatives, such as suvorexant
and zolpidem, which were used as positive controls in the
aforementioned study. According to HHS, in multiple-dose Phase I
studies, lemborexant produced dose-dependent ``abnormal dreams.'' There
were few incidents of abuse-related adverse events (AEs), such as
``euphoric mood,'' ``disturbance in attention,'' and ``memory
impairment.'' Furthermore, in Phase 2 clinical studies, lemborexant
produced dose dependent somnolence. This response was considered
appropriate given the proposed therapeutic use for lemborexant as a
treatment for insomnia. No additional abuse-related AEs were reported
by participants at an incidence greater than 1.0 percent. As per the
adverse event data obtained from Phase 1 and Phase \2/3\ clinical
safety and efficacy trials, there were no significant abuse-related
signals.
3. The State of Current Scientific Knowledge Regarding the Drug or
Other Substance
Lemborexant is a new molecular entity, chemically known as (1R,2S)-
2-[(2,4-dimethylpyrimidin-5-yl)oxymethyl]-2-(3-fluorophenyl)-N-(5-
fluoropyridin-2-yl)cyclopropane-1-carboxamide. It is nearly insoluble
in water and heptane; ``sparingly'' soluble in 1-octanol; very soluble
in dimethyl sulfoxide; and freely soluble in methanol, acetone, ethyl
acetate, and benzyl alcohol. Additionally, lemborexant is soluble in
acetonitrile and ethanol. On December 20, 2019, FDA approved an NDA for
lemborexant for medical use for the treatment of insomnia in adult
patients with insomnia characterized by difficulties with sleep onset
and/or sleep maintenance. Thus, lemborexant has an accepted medical use
in the United States. Lemborexant will be marketed as a once daily
tablet taken before bedtime, with at least 7 hours remaining before the
planned time of awakening. The recommended dose for lemborexant is 5
mg; however, the dosage may be increased to 10 mg based on clinical
response and tolerability.\5\
---------------------------------------------------------------------------
\5\ https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/212028s000lbl.pdf, accessed February 6, 2020.
---------------------------------------------------------------------------
4. Its History and Current Pattern of Abuse
There is no information available relating to the history and
current pattern of abuse of lemborexant because this drug is not
currently marketed in any country. As stated in Factor 1, DEA notes
that there has been no diversion of lemborexant based on NFLIS and
STARLiMS data. HHS notes that lemborexant produces abuse-related
signals and abuse potential similar to that of the schedule IV
controlled substance suvorexant.
5. The Scope, Duration, and Significance of Abuse
Lemborexant as a single active ingredient in a drug product is
currently not marketed in any country. Thus, information on the scope,
duration, and significance of abuse for lemborexant is lacking. As
described in Factor 4, NFLIS and STARLiMS databases have no evidence of
law enforcement encounters of lemborexant. However, as HHS notes, data
from preclinical and clinical studies summarized in Factor 2 indicate
that the scope, duration, and significance of abuse for lemborexant
would be similar to those of suvorexant, a schedule IV substance. As
stated by HHS, data from animal and human studies indicate that
lemborexant has an abuse potential similar to that of suvorexant.
6. What, if Any, Risk There Is to the Public Health
As stated by HHS, the public health risk associated with
lemborexant is largely a risk to the individual due to its abuse
potential. The extent of abuse potential of a drug is an indication of
its public health risk. Data from the preclinical and clinical studies
suggest that the abuse potential of lemborexant is similar to schedule
IV substances, such as suvorexant and zolpidem. Lemborexant, similar to
schedule IV sedatives, is likely to pose a public health risk of abuse
upon marketing in the United States.
7. Its Psychic or Physiological Dependence Liability
Physical dependence for lemborexant was tested in a rat physical
dependence study and during Phase \2/3\ clinical trials. Based on the
data from these studies, HHS concluded that lemborexant lacked physical
dependence potential. According to HHS, in the HAP study (presented in
Factor 2), lemborexant administration was associated with positive
subjective effects as assessed by participant responses to measures of
Drug Liking, Overall Drug Liking, Good Drug Effects, High, Stoned, and
Take Drug Again. The results indicated that the responses for
lemborexant were similar to that of positive control drugs, such as
zolpidem and suvorexant. Thus, it is likely that lemborexant can
produce psychic dependence similar to that of schedule IV drugs, such
as zolpidem and suvorexant.
8. Whether the Substance Is an Immediate Precursor of a Substance
Already Controlled Under the CSA
Lemborexant is not an immediate precursor of any controlled
substance, as defined in 21 U.S.C. 802(23).
Conclusion
After considering the scientific and medical evaluation conducted
by HHS, HHS's recommendation, and its own eight-factor analysis, DEA
has determined that these facts and all
[[Page 19390]]
relevant data constitute substantial evidence of a potential for abuse
of lemborexant. As such, DEA hereby schedules lemborexant as a
controlled substance under the CSA.
Determination of Appropriate Schedule
The CSA lists the findings required to place a drug or other
substance in any particular schedule (I, II, III, IV, or V). 21 U.S.C.
812(b). After consideration of the analysis and recommendation of the
Assistant Secretary for Health of HHS and review of all available data,
the Acting Administrator of DEA, pursuant to 21 U.S.C. 812(b)(4), finds
that:
1. Lemborexant has a low potential for abuse relative to the drugs
or other substances in schedule III.
Lemborexant is a dual orexin receptor antagonist, which produces
sedation in human behavioral studies. In the HAP study, therapeutic and
supratherapeutic doses of lemborexant produced positive subjective
responses such as Drug Liking, Overall Drug Liking, Good Drug Effects,
High, Stoned, and Take Drug Again that were statistically significantly
greater than those produced by placebo. These responses of lemborexant
are similar to those produced by schedule IV drugs suvorexant and
zolpidem. Because lemborexant is similar to zolpidem and suvorexant in
its abuse potential, lemborexant has a low potential for abuse relative
to the drugs and other listed substances in schedule III of the CSA.
2. Lemborexant has a currently accepted medical use in the United
States.
FDA recently approved lemborexant oral tablets for the treatment of
adult patients with insomnia, characterized by difficulties with sleep
onset and/or sleep maintenance. Thus, lemborexant has a currently
accepted medical use in treatment in the United States.
3. Lemborexant may lead to limited physical dependence or
psychological dependence relative to the drugs or other substances in
schedule III.
As stated by HHS, data from a rat physical dependence study, as
well as a physical dependence assessment at the conclusion of the Phase
\2/3\ clinical trials, showed that lemborexant did not produce
withdrawal symptoms indicative of physical dependence. In the HAP
study, lemborexant produced positive subjective responses to measures
such as Drug Liking, Overall Drug Liking, Good Drug Effects, High,
Stoned, and Take Drug Again that were greater than placebo and similar
to that of the schedule IV drugs zolpidem and suvorexant. This data
suggests that lemborexant can produce psychic dependence to a similar
extent as zolpidem and suvorexant. Thus, abuse of lemborexant may lead
to limited psychological dependence relative to the drugs or other
substances in schedule III of the CSA.
Based on these findings, the Acting Administrator of DEA concludes
that lemborexant warrants control in schedule IV of the CSA. 21 U.S.C.
812(b)(4).
Requirements for Handling Lemborexant
Lemborexant is subject to the CSA's schedule IV regulatory controls
and administrative, civil, and criminal sanctions applicable to the
manufacture, distribution, reverse distribution, dispensing, importing,
exporting, research, and conduct of instructional activities and
chemical analysis with, and possession involving schedule IV
substances, including the following:
1. Registration. Any person who handles (manufactures, distributes,
reverse distributes, dispenses, imports, exports, engages in research,
or conducts instructional activities or chemical analysis with, or
possesses) lemborexant, or who desires to handle lemborexant, must be
registered with DEA to conduct such activities pursuant to 21 U.S.C.
822, 823, 957, and 958 and in accordance with 21 CFR parts 1301 and
1312. Any person who currently handles or intends to handle lemborexant
and is not registered with DEA must submit an application for
registration and may not continue to handle lemborexant, unless DEA has
approved that application for registration, pursuant to 21 U.S.C. 822,
823, 957, and 958, and in accordance with 21 CFR parts 1301 and 1312.
2. Disposal of stocks. Any person who does not desire or is not
able to maintain a schedule IV registration must surrender all
quantities of currently held lemborexant or may transfer all quantities
of lemborexant to a person registered with DEA in accordance with 21
CFR part 1317, in additional to all other applicable Federal, State,
local, and tribal laws.
3. Security. Lemborexant is subject to schedule III-V security
requirements and must be handled and stored in accordance with 21 CFR
1301.71-1301.77. Non-practitioners handling lemborexant must also
comply with the employee screening requirements of 1301.90-1301.93.
4. Labeling and Packaging. All labels, labeling, and packaging for
commercial containers of lemborexant must comply with 21 U.S.C. 825 and
958(e), and be in accordance with 21 CFR part 1302.
5. Inventory. Every DEA registrant who possesses any quantity of
lemborexant must take an inventory of lemborexant on hand, pursuant to
21 U.S.C. 827 and 958, and in accordance with 21 CFR 1304.03, 1304.04,
and 1304.11.
Any person who becomes registered with DEA to handle lemborexant
must take an initial inventory of all stocks of controlled substances
(including lemborexant) on hand on the date the registrant first
engages in the handling of controlled substances, pursuant to 21 U.S.C.
827 and 958(e), and in accordance with 21 CFR 1304.03, 1304.04, and
1304.11.
After the initial inventory, every DEA registrant must take a new
inventory of all stocks of controlled substances (including
lemborexant) on hand at least every two years, pursuant to 21 U.S.C.
827 and 958(e), and in accordance with 21 CFR 1304.03, 1304.04, and
1304.11.
6. Records and Reports. DEA registrants must maintain records and
submit reports for lemborexant, pursuant to 21 U.S.C. 827, 832(a), and
958(e), and in accordance with 21 CFR 1301.74(b) and (c) and parts
1304, 1312, and 1317.
7. Prescriptions. All prescriptions for lemborexant, or products
containing lemborexant, must comply with 21 U.S.C. 829, and be issued
in accordance with 21 CFR parts 1306 and 1311, subpart C.
8. Manufacturing and Distributing. In addition to the general
requirements of the CSA and DEA regulations that are applicable to
manufacturers and distributors of schedule IV controlled substances,
such registrants should be advised that (consistent with the foregoing
considerations) any manufacturing or distribution of lemborexant may
only be for the legitimate purposes consistent with the drug's
labeling, or for research activities authorized by the FDCA and the
CSA.
9. Importation and Exportation. All importation and exportation of
lemborexant must be in compliance with 21 U.S.C. 952, 953, 957, and
958, and in accordance with 21 CFR part 1312.
10. Liability. Any activity involving lemborexant not authorized
by, or in violation of, the CSA or its implementing regulations, is
unlawful, and may subject the person to administrative, civil, and/or
criminal sanctions.
Regulatory Analyses
Administrative Procedure Act
Section 553 of the APA (5 U.S.C. 553) generally requires notice and
comment
[[Page 19391]]
for rulemakings. However, 21 U.S.C. 811(j) provides that in cases where
a certain new drug is: (1) Approved by HHS, under section 505(c) of the
FDCA, and (2) HHS recommends control in CSA schedule II-V, DEA shall
issue an interim final rule scheduling the drug within 90 days. As
stated in the legal authority section, the 90-day time frame is the
later of: (1) The date DEA receives HHS's scientific and medical
evaluation/scheduling recommendation, or (2) the date DEA receives
notice of the NDA approval by HHS. Additionally, the law specifies that
the rulemaking shall become immediately effective as an interim final
rule without requiring DEA to demonstrate good cause.
Executive Orders 12866, 13563, and 13771, Regulatory Planning and
Review, Improving Regulation and Regulatory Review, and Reducing
Regulation and Controlling Regulatory Costs
In accordance with 21 U.S.C. 811(a) and (j), this scheduling action
is subject to formal rulemaking procedures performed ``on the record
after opportunity for a hearing,'' which are conducted pursuant to the
provisions of 5 U.S.C. 556 and 557. The CSA sets forth the procedures
and criteria for scheduling a drug or other substance. Such actions are
exempt from review by the Office of Management and Budget (OMB)
pursuant to section 3(d)(1) of Executive Order 12866 and the principles
reaffirmed in Executive Order 13563.
This interim final rule is not an Executive Order 13771 regulatory
action pursuant to Executive Order 12866 and OMB guidance.\6\
---------------------------------------------------------------------------
\6\ Office of Mgmt. & Budget, Exec. Office of The President,
Interim Guidance Implementing Section 2 of the Executive Order of
January 30, 2017 Titled ``Reducing Regulation and Controlling
Regulatory Costs'' (Feb. 2, 2017).
---------------------------------------------------------------------------
Executive Order 12988, Civil Justice Reform
This regulation meets the applicable standards set forth in
sections 3(a) and 3(b)(2) of Executive Order 12988 to eliminate
drafting errors and ambiguity, minimize litigation, provide a clear
legal standard for affected conduct, and promote simplification and
burden reduction.
Executive Order 13132, Federalism
This rulemaking does not have federalism implications warranting
the application of Executive Order 13132. The rule does not 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.
Executive Order 13175, Consultation and Coordination With Indian Tribal
Governments
This rule does not have tribal implications warranting the
application of Executive Order 13175. It does not have substantial
direct effects on one or more Indian tribes, on the relationship
between the Federal government and Indian tribes, or on the
distribution of power and responsibilities between the Federal
government and Indian tribes.
Regulatory Flexibility Act
The Regulatory Flexibility Act (RFA) (5 U.S.C. 601-612) applies to
rules that are subject to notice and comment under section 553(b) of
the APA. Under 21 U.S.C. 811(j), DEA is not required to publish a
general notice of proposed rulemaking. Consequently, the RFA does not
apply to this interim final rule.
Unfunded Mandates Reform Act of 1995
In accordance with the Unfunded Mandates Reform Act (UMRA) of 1995,
2 U.S.C. 1501 et seq., DEA has determined that this action would not
result in 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 1 year.'' Therefore, neither a Small Government
Agency Plan nor any other action is required under UMRA of 1995.
Paperwork Reduction Act of 1995
This action does not impose a new collection of information
requirement under the Paperwork Reduction Act of 1995. 44 U.S.C. 3501-
3521. This action would not impose recordkeeping or reporting
requirements on State or local governments, individuals, businesses, or
organizations. An agency may not conduct or sponsor, and a person is
not required to respond to, a collection of information unless it
displays a currently valid OMB control number.
Congressional Review Act
This rule is not a major rule as defined by the Congressional
Review Act (CRA), 5 U.S.C. 804. This rule will not result in: An annual
effect on the economy of $100 million or more; a major increase in
costs or prices for consumers, individual industries, Federal, State,
or local government agencies, or geographic regions; or significant
adverse effects on competition, employment, investment, productivity,
innovation, or on the ability of United States-based companies to
compete with foreign-based companies in domestic and export markets.
However, pursuant to the CRA, DEA has submitted a copy of this interim
final rule to both Houses of Congress and to the Comptroller General.
List of Subjects in 21 CFR Part 1308
Administrative practice and procedure, Drug traffic control,
Reporting and recordkeeping requirements.
For the reasons set out above, DEA amends 21 CFR part 1308 as
follows:
PART 1308--SCHEDULES OF CONTROLLED SUBSTANCES
0
1. The authority citation for 21 CFR part 1308 continues to read as
follows:
Authority: 21 U.S.C. 811, 812, 871(b), 956(b), unless otherwise
noted.
0
2. Amend Sec. 1308.14 by:
0
a. Redesignating paragraphs (c)(30) through (c)(56) as (c)(31) through
(c)(57); and
0
b. Adding new paragraph (c)(30).
The addition reads as follows:
Sec. 1308.14 Schedule IV.
* * * * *
(c) * * *
(30) Lemborexant............................................... 2245
* * * * *
Uttam Dhillon,
Acting Administrator.
[FR Doc. 2020-07089 Filed 4-6-20; 8:45 am]
BILLING CODE 4410-09-P