[Federal Register: September 28, 2004 (Volume 69, Number 187)]
[Notices]               
[Page 57938-57939]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr28se04-70]                         

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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket No. 2002E-0065]

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

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 KINERET and is publishing this notice of 
that determination as required by law. FDA has made the determination 
because of the submission of an application to the Director of Patents 
and Trademarks, Department of Commerce, for the extension of a patent 
which claims that human biological product.

ADDRESSES: Submit written or electronic comments and petitions to the 
Division of Dockets Management (HFA-305), Food and Drug Administration, 
5630 Fishers Lane, rm. 1061, Rockville, MD 20852. Submit electronic 
comments to http://frwebgate.access.gpo.gov/cgi-bin/leaving.cgi?from=leavingFR.html&log=linklog&to=http://www.fda.gov/dockets/ecomments.


FOR FURTHER INFORMATION CONTACT: Claudia V. Grillo, Office of 
Regulatory Policy (HFD-013), Food and Drug Administration, 5600 Fishers 
Lane, Rockville, MD 20857, 240-453-6699.

SUPPLEMENTARY INFORMATION: The Drug Price Competition and Patent Term 
Restoration Act of 1984 (Public Law 98-417) and the Generic Animal Drug 
and Patent Term Restoration Act (Public Law 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 biological products, the 
testing phase begins when the exemption to permit the clinical 
investigations of the biological becomes effective and runs until the 
approval phase begins. The approval phase starts with the initial 
submission of an application to market the human biological product and 
continues until FDA grants permission to market the biological 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 biological 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 biologic product 
KINERET (anakinra). KINERET is indicated for the reduction of signs and 
symptoms of moderately to severely active rheumatoid arthritis, in 
patients 18 years or older who have failed 1 or more disease modifying 
antirheumatic drugs (DMARDs). Subsequent to this approval, the Patent 
and Trademark Office received a patent term restoration application for 
Kineret (U.S. Patent No. 5,075,222) from Amgen, Inc., and the Patent 
and Trademark Office requested FDA's assistance in determining this 
patent's eligibility for patent term restoration. In a letter dated 
December 30, 2002, FDA advised the Patent and Trademark Office that 
this human biologic product had undergone a regulatory review period 
and that the approval of KINERET represented the first permitted 
commercial marketing or use of the product. Shortly thereafter, the 
Patent and Trademark Office

[[Page 57939]]

requested that FDA determine the product's regulatory review period.
    FDA has determined that the applicable regulatory review period for 
KINERET is 4,101 days. Of this time, 3,413 days occurred during the 
testing phase of the regulatory review period, while 688 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 (21 U.S.C. 355(i)) became effective: August 25, 
1990. The applicant claims August 23, 1990, as the date the 
investigational new drug application (IND) became effective. However, 
FDA records indicate that the IND effective date was August 25, 1990, 
which was 30 days after FDA receipt of the IND.
    2. The date the application was initially submitted with respect to 
the human biological product under section 351 of the Public Health 
Service Act (42 U.S.C. 262): December 28, 1999. The applicant claims 
December 27, 1999, as the date the product license application (BLA) 
for KINERET (BLA 103950) was initially submitted. However, FDA records 
indicate that BLA 103950 was submitted on December 28, 1999.
    3. The date the application was approved: November 14, 2001. FDA 
has verified the applicant's claim that BLA 103950 was approved on 
November 14, 2001.
    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 
application for patent extension, this applicant seeks 1,825 days 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) written or electronic comments and ask for a redetermination 
by November 29, 2004. 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 March 
28, 2005. 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.
    Comments and petitions should be submitted to the Division of 
Dockets Management. Three copies of any mailed information are to be 
submitted, except that individuals may submit one copy. Comments are to 
be identified with the docket number found in brackets in the heading 
of this document. Comments and petitions may be seen in the Division of 
Dockets Management between 9 a.m. and 4 p.m., Monday through Friday.

    Dated: August 30, 2004.
Jane A. Axelrad,
Associate Director for Policy, Center for Drug Evaluation and Research.
[FR Doc. 04-21675 Filed 9-27-04; 8:45 am]

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