
[Federal Register Volume 79, Number 102 (Wednesday, May 28, 2014)]
[Notices]
[Pages 30625-30626]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-12277]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket No. FDA-2012-E-0039]


Determination of Regulatory Review Period for Purposes of Patent 
Extension; ADCETRIS--Biologics License Application 125388

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 ADCETRIS based on biologics license 
application (BLA) 125388 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 biological product, ADCETRIS.

ADDRESSES: Submit electronic comments to http://www.regulations.gov. 
Submit written petitions (two copies are required) and written comments 
to the Division of Dockets Management (HFA-305), Food and Drug 
Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852. 
Submit petitions electronically to http://www.regulations.gov at Docket 
No. FDA-2013-S-0610.

FOR FURTHER INFORMATION CONTACT: Beverly Friedman, Office of 
Management, Center for Drug Evaluation and Research, Food and Drug 
Administration, 10903 New Hampshire Ave., Bldg. 51, Rm. 6257, Silver 
Spring, MD 20993-0002, 301-796-7900.

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 biological products, the 
testing phase begins when the exemption to permit

[[Page 30626]]

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 human biological product 
will include all of the testing phase and approval phase as specified 
in 35 U.S.C. 156(g)(1)(B).
    FDA has approved for marketing the human biologic product ADCETRIS 
(brentuximab vedotin). ADCETRIS as approved under BLA 125388 is 
indicated for treatment of patients with Hodgkin lymphoma after failure 
of autologous stem cell transplant (ASCT) or after failure of at least 
two prior multiagent chemotherapy regimens in patients who are not ASCT 
candidates. Subsequent to this approval, the Patent and Trademark 
Office received patent term restoration applications for ADCETRIS (U.S. 
Patent Nos. 7,090,843 and 7,829,531) from Seattle Genetics, Inc., and 
the Patent and Trademark Office requested FDA's assistance in 
determining the patents' eligibility for patent term restoration. In a 
letter dated February 4, 2013, FDA advised the Patent and Trademark 
Office that this human biological product had undergone a regulatory 
review period and that the approval of ADCETRIS under BLA 125388 and 
BLA 125399 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 
ADCETRIS is 1,851 days. Of this time, 1,678 days occurred during the 
testing phase of the regulatory review period, while 173 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: July 27, 
2006. FDA has verified the applicant's claim that the date the 
investigational new drug application became effective was on July 27, 
2006. This is the same investigational new drug application (IND) and 
the same date FDA determined was the beginning of the regulatory review 
period for ADCETRIS approved under BLA 125399. The regulatory review 
period for ADCETRIS approved under BLA 125399 is publishing elsewhere 
in this issue of the Federal Register.
    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): February 28, 2011. FDA has verified the 
applicant's claim that the BLA for ADCETRIS (BLA 125388) was initially 
submitted on February 28, 2011.
    3. The date the application was approved: August 19, 2011. FDA has 
verified the applicant's claim that BLA 125388 was approved on August 
19, 2011.
    This determination of the regulatory review period establishes the 
maximum potential length of a patent extension. However, the 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 1,002 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) either electronic or written comments and ask for a 
redetermination by July 28, 2014. 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 November 24, 2014. 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 or 
electronic petitions. It is only necessary to send one set of comments. 
Identify comments with the docket number found in brackets in the 
heading of this document. If you submit a written petition, two copies 
are required. A petition submitted electronically must be submitted to 
http://www.regulations.gov, Docket No. FDA-2013-S-0610. Comments and 
petitions that have not been made publicly available on http://www.regulations.gov may be viewed in the Division of Dockets Management 
between 9 a.m. and 4 p.m., Monday through Friday.

    Dated: May 21, 2014.
Leslie Kux,
Assistant Commissioner for Policy.
[FR Doc. 2014-12277 Filed 5-27-14; 8:45 am]
BILLING CODE 4160-01-P


