Document ID: FDA-2010-E-0039-0006
Agency: fda
Document Type: Notice
Title: Determination of Regulatory Review Period for Purposes of Patent Extension: MULTAQ
Posted Date: 2010-12-10T05:00Z

[Federal Register Volume 75, Number 237 (Friday, December 10, 2010)]
[Notices]
[Pages 76991-76992]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-31064]

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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket Nos. FDA-2010-E-0039 and FDA-2010-E-0040]

Determination of Regulatory Review Period for Purposes of Patent 
Extension; MULTAQ

AGENCY: Food and Drug Administration, HHS.

ACTION: Notice.

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SUMMARY: The Food and Drug Administration (FDA) has determined the 
regulatory review period for MULTAQ and is publishing this notice of 
that determination as required by law. FDA has made the determination 
because of the submission of applications to the Director of Patents 
and Trademarks, Department of Commerce, for the extension of patents 
which claim that human drug product.

ADDRESSES: Submit electronic comments to http://www.regulations.gov. 
Submit written petitions along with three copies and 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: Beverly Friedman, Office of Regulatory 
Policy, Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 
51, rm. 6222, Silver Spring, MD 20993-0002, 301-796-3602.

SUPPLEMENTARY INFORMATION: The Drug Price Competition and Patent Term 
Restoration Act of 1984 (Pub. L. 98-417) and the Generic Animal Drug 
and Patent Term Restoration Act (Pub. L. 100-670) generally provide 
that a patent may be extended for a period of up to 5 years so long as 
the patented item (human drug product, animal drug product, medical 
device, food additive, or color additive) was subject to regulatory 
review by FDA before the item was marketed. Under these acts, a 
product's regulatory review period forms the basis for determining the 
amount of extension an applicant may receive.
    A regulatory review period consists of two periods of time: A 
testing phase and an approval phase. For human drug products, the 
testing phase begins when the exemption to permit the clinical 
investigations of the drug becomes effective and runs until the 
approval phase begins. The approval phase starts with the initial 
submission of an application to market the human drug product and 
continues until FDA grants permission to market the drug product. 
Although only a portion of a regulatory review period may count toward 
the actual amount of extension that the Director of Patents and 
Trademarks may award (for example, half the testing phase must be 
subtracted as well as any time that may have occurred before the patent 
was issued), FDA's determination of the length of a regulatory review 
period for a human drug product will include all of the testing phase 
and approval phase as specified in 35 U.S.C. 156(g)(1)(B).
    FDA recently approved for marketing the human drug product MULTAQ 
(dronedarone hydrochloride). MULTAQ is indicated to reduce the risk of 
cardiovascular hospitalization in patients with paroxysmal or 
persistent atrial fibrillation (AF) or atrial flutter (AFL), with a 
recent episode of AF/AFL and associated cardiovascular risk factors who 
are in sinus rhythm or who will be cardioverted. Subsequent to this 
approval, the Patent and Trademark Office received patent term 
restoration applications for MULTAQ (U.S. Patent Nos. 5,223,510 and 
7,323,493) from Sanofi-Aventis, and the Patent and Trademark Office 
requested FDA's assistance in determining the patents' eligibility for 
patent term restoration. In a letter dated March 3, 2010, FDA advised 
the Patent and Trademark Office that this human drug product had 
undergone a regulatory review period and that the approval of MULTAQ 
represented the first permitted commercial marketing or use of the 
product. Thereafter, the Patent and Trademark Office requested that FDA 
determine the product's regulatory review period.
    FDA has determined that the applicable regulatory review period for 
MULTAQ is 5,076 days. Of this time, 3,593 days occurred during the 
testing phase of the regulatory review period, while 1,483 days 
occurred during the approval phase. These periods of time were derived 
from the following dates:
    1. The date an exemption under section 505(i) of the Federal Food, 
Drug, and Cosmetic Act (the FFD&C act) (21 U.S.C. 355(i)) became 
effective: August 10, 1995. FDA has verified the applicant's claim that 
the date the investigational new drug application became effective was 
on August 10, 1995.
    2. The date the application was initially submitted with respect to 
the human drug product under section 505(b) of the FFD&C act: June 10, 
2005. FDA has verified the applicant's claim that the first new drug 
application (NDA) for MULTAQ (NDA 21-913) was submitted on June 10, 
2005.

[[Page 76992]]

    3. The date the application was approved: July 1, 2009. FDA has 
verified the applicant's claim that NDA 21-425 for MULTAQ was approved 
on July 1, 2009.
    This determination of the regulatory review period establishes the 
maximum potential length of a patent extension. However, the U.S. 
Patent and Trademark Office applies several statutory limitations in 
its calculations of the actual period for patent extension. In its 
applications for patent extension, this applicant seeks 519 days and 5 
years, respectively, of patent term extension.
    Anyone with knowledge that any of the dates as published are 
incorrect may submit to the Division of Dockets Management (see 
ADDRESSES) either electronic or written comments and ask for a 
redetermination by February 8, 2011. Furthermore, any interested person 
may petition FDA for a determination regarding whether the applicant 
for extension acted with due diligence during the regulatory review 
period by June 8, 2011. To meet its burden, the petition must contain 
sufficient facts to merit an FDA investigation. (See H. Rept. 857, part 
1, 98th Cong., 2d sess., pp. 41-42, 1984.) Petitions should be in the 
format specified in 21 CFR 10.30.
    Interested persons may submit to the Division of Dockets Management 
(see ADDRESSES) electronic or written comments and written petitions. 
It is only necessary to send one set of comments. It is no longer 
necessary to send three copies of mailed comments. However, if you 
submit a written petition, you must submit three copies of the 
petition. Identify comments with the docket number found in brackets in 
the heading of this document.
    Comments and petitions that have not been made publicly available 
on regulations.gov may be viewed in the Division of Dockets Management 
between 9 a.m. and 4 p.m., Monday through Friday.

    Dated: October 22, 2010.
Jane A. Axelrad,
Associate Director for Policy, Center for Drug Evaluation and Research.
[FR Doc. 2010-31064 Filed 12-9-10; 8:45 am]
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