Draft Guidance for Industry on Bioequivalence Recommendations for Rifaximin Tablets; Availability, 7585-7586 [2012-3234]

Download as PDF Federal Register / Vol. 77, No. 29 / Monday, February 13, 2012 / Notices practices regulation (21 CFR 10.115). The draft guidance, when finalized, will represent the Agency’s current thinking on this topic. It does not create or confer any rights for or on any person and does not operate to bind FDA or the public. An alternative approach may be used if such approach satisfies the requirements of the applicable statutes and regulations. II. Comments III. Paperwork Reduction Act of 1995 This draft guidance refers to previously approved collections of information found in FDA regulations. These collections of information are subject to review by the Office of Management and Budget (OMB) under the Paperwork Reduction Act of 1995 (44 U.S.C. 3501–3520). In the draft guidance, FDA advises drug and medical device manufacturers who receive and use crude heparin to manufacture drugs and medical devices to notify the Agency of crude heparin found to contain any amount of OSCS (for human drugs 21 CFR 314.81(b)(1)(ii); for animal drugs 21 CFR 514.80(b); for medical devices 21 CFR 803.50). The collections of information in 21 CFR 314.81(b)(1)(ii) have been approved under OMB control number 0910–0001; in 21 CFR 514.80(b) under OMB control number 0910–0284; and in 21 CFR 803.50 under OMB control number 0910–0437. erowe on DSK2VPTVN1PROD with NOTICES IV. Electronic Access Persons with access to the Internet may obtain the document at either https://www.fda.gov/Drugs/Guidance ComplianceRegulatoryInformation/ Guidances/default.htm, https:// www.fda.gov/AnimalVeterinary/ GuidanceComplianceEnforcement/ GuidanceforIndustry/default.htm, https://www.fda.gov/MedicalDvices/ DeviceRegulationandGuidance/ GuidanceDocuments/default.htm, or https://www.regulations.gov. 14:46 Feb 10, 2012 [FR Doc. 2012–3229 Filed 2–10–12; 8:45 am] BILLING CODE 4160–01–P DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration [Docket No. FDA–2007–D–0369] Interested persons may submit to the Division of Dockets Management (see ADDRESSES) either electronic or written comments regarding this document. It is only necessary to send one set of comments. It is no longer necessary to send two copies of mailed comments. Identify comments with the docket number found in brackets in the heading of this document. Received comments may be seen in the Division of Dockets Management between 9 a.m. and 4 p.m., Monday through Friday. VerDate Mar<15>2010 Dated: February 8, 2012. Leslie Kux, Acting Assistant Commissioner for Policy. Jkt 226001 Draft Guidance for Industry on Bioequivalence Recommendations for Rifaximin Tablets; Availability AGENCY: Food and Drug Administration, HHS. ACTION: Notice. The Food and Drug Administration (FDA) is announcing the availability of two draft guidances for industry entitled ‘‘Bioequivalence Recommendations for Rifaximin,’’ one for the 200-milligram (mg) strength (rifaximin-200) and one for the 550-mg strength (rifaximin-550). The recommendations provide specific guidance on the design of bioequivalence (BE) studies to support abbreviated new drug applications (ANDAs) for rifaximin tablets. DATES: Although you can comment on any guidance at any time (see 21 CFR 10.115(g)(5)), to ensure that the Agency considers your comment on the draft guidances before it begins work on the final versions of the guidances, submit either electronic or written comments on the draft guidances by April 13, 2012. SUMMARY: Submit written requests for single copies of the draft guidances to the Division of Drug Information, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 51, rm. 2201, Silver Spring, MD 20993–0002. Send one self-addressed adhesive label to assist that office in processing your requests. See the SUPPLEMENTARY INFORMATION section for electronic access to the draft guidance documents. Submit electronic comments on the draft guidances to https:// www.regulations.gov. Submit written comments to the Division of Dockets Management (HFA–305), Food and Drug Administration, 5630 Fishers Lane, rm. 1061, Rockville, MD 20852. FOR FURTHER INFORMATION CONTACT: Doan T. Nguyen, Center for Drug Evaluation and Research (HFD–600), Food and Drug Administration, 7519 Standish Pl., Rockville, MD 20855, 240– 276–8608. ADDRESSES: PO 00000 Frm 00021 Fmt 4703 Sfmt 4703 7585 SUPPLEMENTARY INFORMATION: I. Background In the Federal Register of June 11, 2010 (75 FR 33311), FDA announced the availability of a guidance for industry entitled ‘‘Bioequivalence Recommendations for Specific Products,’’ which explained the process that would be used to make productspecific BE recommendations available to the public on FDA’s Web site at https://www.fda.gov/Drugs/ GuidanceComplianceRegulatory Information/Guidances/default.htm. As described in that guidance, FDA adopted this process as a means to develop and disseminate productspecific BE recommendations and provide a meaningful opportunity for the public to consider and comment on those recommendations. This notice announces the availability of two draft BE recommendations, one for rifaximin200 and one for rifaximin-550. Xifaxan (rifaximin) 200-mg tablets, approved by FDA in May 2004, are indicated for the treatment of patients (≥ 12 years of age) with travelers’ diarrhea caused by noninvasive strains of Escherichia coli. Xifaxan (rifaximin) 550-mg tablets, approved by FDA in March 2010, are indicated for reduction in risk of hepatic encephalopathy recurrence in patients ≥ 18 years of age. Xifaxan, 200 mg, and Xifaxan, 550 mg, are designated the reference listed drugs (RLDs) and therefore any ANDAs for generic rifaximin-200 or rifaximin-550 must demonstrate BE to the relevant RLD prior to approval. There are no approved ANDAs for these products. In November 2011, FDA posted on its Web site a draft guidance for industry on the Agency’s recommendations for BE studies to support ANDAs for rifaximin-200 (Draft Rifaximin-200 BE Recommendations). FDA is now issuing a draft guidance for industry on BE recommendations for generic rifaximin550 (Draft Rifaximin-550 BE Recommendations). In May 2008, Salix Pharmaceuticals, Inc. (Salix), manufacturer of the RLD, Xifaxan (200 mg), filed a citizen petition requesting that FDA refuse to receive for substantive review, or approve, ANDAs for generic rifaximin-200 unless the ANDAs contain certain data to demonstrate BE (Docket No. FDA–2008– P–0300). FDA is reviewing the issues raised in the petition and will consider any comments on the Draft Rifaximin200 BE Recommendations before responding to Salix’s citizen petition and finalizing its BE recommendations for rifaximin-200. These draft guidances are being issued consistent with FDA’s good E:\FR\FM\13FEN1.SGM 13FEN1 7586 Federal Register / Vol. 77, No. 29 / Monday, February 13, 2012 / Notices guidance practices regulation (21 CFR 10.115). The draft guidances, when finalized, will represent the Agency’s current thinking on the design of BE studies to support ANDAs for rifaximin200 and rifaximin-550. They do not create or confer any rights for or on any person and do not operate to bind FDA or the public. An alternative approach may be used if such approach satisfies the requirements of the applicable statutes and regulations. II. Comments Interested persons may submit to the Division of Dockets Management (see ADDRESSES) either electronic or written comments regarding this document. It is only necessary to send one set of comments. It is no longer necessary to send two copies of mailed comments. Identify comments with the docket number found in brackets in the heading of this document. Received comments may be seen in the Division of Dockets Management between 9 a.m. and 4 p.m., Monday through Friday. III. Electronic Access Persons with access to the Internet may obtain the documents at either https://www.fda.gov/Drugs/ GuidanceCompliance RegulatoryInformation/Guidances/ default.htm or https:// www.regulations.gov. Dated: February 7, 2012. Leslie Kux, Acting Assistant Commissioner for Policy. [FR Doc. 2012–3234 Filed 2–10–12; 8:45 am] BILLING CODE 4160–01–P DEPARTMENT OF HEALTH AND HUMAN SERVICES [Docket No. FDA–2007–D–0369] Draft Guidance for Industry on Bioequivalence Recommendation for Nitroglycerin Metered Spray/ Sublingual Products and Metered Aerosol/Sublingual Products; Availability Food and Drug Administration, HHS. ACTION: Notice. The Food and Drug Administration (FDA) is announcing the availability of two draft guidances for industry entitled ‘‘Bioequivalence Recommendations for Nitroglycerin,’’ one for nitroglycerin metered spray/ sublingual products and one for nitroglycerin metered aerosol/ sublingual products. The erowe on DSK2VPTVN1PROD with NOTICES SUMMARY: VerDate Mar<15>2010 14:46 Feb 10, 2012 Jkt 226001 Submit written requests for single copies of the draft guidances to the Division of Drug Information, Center for Drug Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 51, rm. 2201, Silver Spring, MD 20993–0002. Send one self-addressed adhesive label to assist that office in processing your requests. See the SUPPLEMENTARY INFORMATION section for electronic access to the draft guidance documents. Submit electronic comments on the draft guidances to https:// www.regulations.gov. Submit written comments to the Division of Dockets Management (HFA–305), Food and Drug Administration, 5630 Fishers Lane, rm. 1061, Rockville, MD 20852. FOR FURTHER INFORMATION CONTACT: Doan T. Nguyen, Center for Drug Evaluation and Research (HFD–600), Food and Drug Administration, 7519 Standish Pl., Rockville, MD 20855, 240– 276–8608. SUPPLEMENTARY INFORMATION: ADDRESSES: I. Background Food and Drug Administration AGENCY: recommendations provide specific guidance on the design of bioequivalence (BE) studies to support abbreviated new drug applications (ANDAs) for these products. The draft guidances are revised versions of previously published draft guidances on the subject. DATES: Although you can comment on any guidance at any time (see 21 CFR 10.115(g)(5)), to ensure that the Agency considers your comment on the draft guidances before it begins work on the final versions of the guidances, submit either electronic or written comments on the draft guidances by April 13, 2012. In the Federal Register sof June 11, 2010 (75 FR 33311), FDA announced the availability of a guidance for industry, ‘‘Bioequivalence Recommendations for Specific Products,’’ which explained the process that would be used to make product-specific BE recommendations available to the public on FDA’s Web site at https://www.fda.gov/Drugs/ GuidanceComplianceRegulatory Information/Guidances/default.htm. As described in that guidance, FDA adopted this process as a means to develop and disseminate productspecific BE recommendations and provide a meaningful opportunity for the public to consider and comment on those recommendations. This document announces the availability of two revised draft BE recommendations, one for nitroglycerin metered spray/ sublingual products and one for PO 00000 Frm 00022 Fmt 4703 Sfmt 4703 nitroglycerin metered aerosol/ sublingual products. Nitrolingual Pumpspray (nitroglycerin lingual spray), approved by FDA in October 1985, is a metered dose spray indicated for acute relief of an attack or prophylaxis of angina pectoris due to coronary artery disease. Nitromist (nitroglycerin lingual aerosol), approved by FDA in November 2006, is another metered dose spray indicated for acute relief of an attack or acute prophylaxis of angina pectoris due to coronary artery disease. Nitrolingual Pumpspray and Nitromist are designated as reference listed drugs (RLDs), and therefore any ANDAs for generic nitroglycerin lingual spray or generic nitroglycerin lingual aerosol must demonstrate BE to the relevant RLD prior to approval. There are no approved ANDAs for these products. In February 2010, FDA posted on its Web site a draft guidance for industry on the Agency’s recommendations for BE studies to support ANDAs for nitroglycerin metered spray/sublingual products (Draft Nitroglycerin Spray BE Recommendations of February 2010). In that draft guidance, FDA recommended three studies to demonstrate BE of generic nitroglycerin metered spray/ sublingual products: An in vivo fasting study, an in vitro study of unit dose and uniformity of unit dose, and an in vitro study of priming and tail off. In March 2010, FDA posted on its Web site a draft guidance for industry on the Agency’s recommendations for BE studies to support ANDAs for nitroglycerin metered aerosol/ sublingual products (Draft Nitroglycerin Aerosol BE Recommendations of March 2010). In that draft guidance, FDA recommended three studies to demonstrate BE of generic nitroglycerin metered aerosol/sublingual products: An in vivo fasting study, an in vitro study of unit dose and uniformity of unit dose, and an in vitro study of priming and tail off. FDA has reconsidered the recommendations for both of these draft guidances and has decided to revise them. In November 2011, FDA withdrew the Draft Nitroglycerin Spray BE Recommendations of February 2010 and the Draft Nitroglycerin Aerosol BE Recommendations of March 2010. FDA is now issuing revised draft guidances for industry on BE recommendations for nitroglycerin metered spray/sublingual products (Revised Draft Nitroglycerin Spray BE Recommendations) and nitroglycerin metered aerosol/ sublingual products (Revised Draft Nitroglycerin Aerosol BE Recommendations). In these revised draft guidances, FDA recommends one E:\FR\FM\13FEN1.SGM 13FEN1

Agencies

[Federal Register Volume 77, Number 29 (Monday, February 13, 2012)]
[Notices]
[Pages 7585-7586]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-3234]


-----------------------------------------------------------------------

DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket No. FDA-2007-D-0369]


Draft Guidance for Industry on Bioequivalence Recommendations for 
Rifaximin Tablets; Availability

AGENCY: Food and Drug Administration, HHS.

ACTION: Notice.

-----------------------------------------------------------------------

SUMMARY: The Food and Drug Administration (FDA) is announcing the 
availability of two draft guidances for industry entitled 
``Bioequivalence Recommendations for Rifaximin,'' one for the 200-
milligram (mg) strength (rifaximin-200) and one for the 550-mg strength 
(rifaximin-550). The recommendations provide specific guidance on the 
design of bioequivalence (BE) studies to support abbreviated new drug 
applications (ANDAs) for rifaximin tablets.

DATES: Although you can comment on any guidance at any time (see 21 CFR 
10.115(g)(5)), to ensure that the Agency considers your comment on the 
draft guidances before it begins work on the final versions of the 
guidances, submit either electronic or written comments on the draft 
guidances by April 13, 2012.

ADDRESSES: Submit written requests for single copies of the draft 
guidances to the Division of Drug Information, Center for Drug 
Evaluation and Research, Food and Drug Administration, 10903 New 
Hampshire Ave., Bldg. 51, rm. 2201, Silver Spring, MD 20993-0002. Send 
one self-addressed adhesive label to assist that office in processing 
your requests. See the SUPPLEMENTARY INFORMATION section for electronic 
access to the draft guidance documents.
    Submit electronic comments on the draft guidances to https://www.regulations.gov. Submit written comments to the Division of Dockets 
Management (HFA-305), Food and Drug Administration, 5630 Fishers Lane, 
rm. 1061, Rockville, MD 20852.

FOR FURTHER INFORMATION CONTACT: Doan T. Nguyen, Center for Drug 
Evaluation and Research (HFD-600), Food and Drug Administration, 7519 
Standish Pl., Rockville, MD 20855, 240-276-8608.

SUPPLEMENTARY INFORMATION: 

I. Background

    In the Federal Register of June 11, 2010 (75 FR 33311), FDA 
announced the availability of a guidance for industry entitled 
``Bioequivalence Recommendations for Specific Products,'' which 
explained the process that would be used to make product-specific BE 
recommendations available to the public on FDA's Web site at  https://www.fda.gov/Drugs/GuidanceComplianceRegulatoryInformation/Guidances/default.htm. As described in that guidance, FDA adopted this process as 
a means to develop and disseminate product-specific BE recommendations 
and provide a meaningful opportunity for the public to consider and 
comment on those recommendations. This notice announces the 
availability of two draft BE recommendations, one for rifaximin-200 and 
one for rifaximin-550.
    Xifaxan (rifaximin) 200-mg tablets, approved by FDA in May 2004, 
are indicated for the treatment of patients (>= 12 years of age) with 
travelers' diarrhea caused by noninvasive strains of Escherichia coli. 
Xifaxan (rifaximin) 550-mg tablets, approved by FDA in March 2010, are 
indicated for reduction in risk of hepatic encephalopathy recurrence in 
patients >= 18 years of age. Xifaxan, 200 mg, and Xifaxan, 550 mg, are 
designated the reference listed drugs (RLDs) and therefore any ANDAs 
for generic rifaximin-200 or rifaximin-550 must demonstrate BE to the 
relevant RLD prior to approval. There are no approved ANDAs for these 
products.
    In November 2011, FDA posted on its Web site a draft guidance for 
industry on the Agency's recommendations for BE studies to support 
ANDAs for rifaximin-200 (Draft Rifaximin-200 BE Recommendations). FDA 
is now issuing a draft guidance for industry on BE recommendations for 
generic rifaximin-550 (Draft Rifaximin-550 BE Recommendations).
    In May 2008, Salix Pharmaceuticals, Inc. (Salix), manufacturer of 
the RLD, Xifaxan (200 mg), filed a citizen petition requesting that FDA 
refuse to receive for substantive review, or approve, ANDAs for generic 
rifaximin-200 unless the ANDAs contain certain data to demonstrate BE 
(Docket No. FDA-2008-P-0300). FDA is reviewing the issues raised in the 
petition and will consider any comments on the Draft Rifaximin-200 BE 
Recommendations before responding to Salix's citizen petition and 
finalizing its BE recommendations for rifaximin-200.
    These draft guidances are being issued consistent with FDA's good

[[Page 7586]]

guidance practices regulation (21 CFR 10.115). The draft guidances, 
when finalized, will represent the Agency's current thinking on the 
design of BE studies to support ANDAs for rifaximin-200 and rifaximin-
550. They do not create or confer any rights for or on any person and 
do not operate to bind FDA or the public. An alternative approach may 
be used if such approach satisfies the requirements of the applicable 
statutes and regulations.

II. Comments

    Interested persons may submit to the Division of Dockets Management 
(see ADDRESSES) either electronic or written comments regarding this 
document. It is only necessary to send one set of comments. It is no 
longer necessary to send two copies of mailed comments. Identify 
comments with the docket number found in brackets in the heading of 
this document. Received comments may be seen in the Division of Dockets 
Management between 9 a.m. and 4 p.m., Monday through Friday.

III. Electronic Access

    Persons with access to the Internet may obtain the documents at 
either https://www.fda.gov/Drugs/GuidanceComplianceRegulatoryInformation/Guidances/default.htm or https://www.regulations.gov.

    Dated: February 7, 2012.
Leslie Kux,
Acting Assistant Commissioner for Policy.
[FR Doc. 2012-3234 Filed 2-10-12; 8:45 am]
BILLING CODE 4160-01-P
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