
[Federal Register Volume 78, Number 21 (Thursday, January 31, 2013)]
[Notices]
[Page 6826]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-02085]



[[Page 6826]]

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

DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket No. FDA-2012-E-0037]


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

AGENCY: Food and Drug Administration, HHS.

ACTION: Notice.

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

SUMMARY: The Food and Drug Administration (FDA) has determined the 
regulatory review period for XALKORI 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 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. 6284, 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 XALKORI 
(crizotinib). XALKORI is a kinase inhibitor indicated for the treatment 
of patients with locally advanced or metastatic non-small cell lung 
cancer that is anaplastic lymphoma kinase-positive as detected by an 
FDA-approved test. Subsequent to this approval, the Patent and 
Trademark Office received a patent term restoration application for 
XALKORI (U.S. Patent No. 7,230,098) from Pfizer 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 
July 9, 2012, FDA advised the Patent and Trademark Office that this 
human drug product had undergone a regulatory review period and that 
the approval of XALKORI 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 
XALKORI is 2,054 days. Of this time, 1,904 days occurred during the 
testing phase of the regulatory review period, while 150 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 FD&C Act) (21 U.S.C. 355(i)) became 
effective: January 12, 2006. The applicant claims January 21, 2006, as 
the date the investigational new drug application (IND) became 
effective. However, FDA records indicate that the IND effective date 
was January 12, 2006, which was 30 days after FDA receipt of the IND.
    2. The date the application was initially submitted with respect to 
the human drug product under section 505(b) of the FD&C Act: March 30, 
2011. FDA has verified the applicant's claim that the new drug 
application (NDA) for XALKORI (NDA 202-570) was submitted on March 30, 
2011.
    3. The date the application was approved: August 26, 2011. FDA has 
verified the applicant's claim that NDA 202-570 was approved on August 
26, 2011.
    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 178 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 April 1, 2013. 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 July 30, 2013. 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. 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 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: January 24, 2013.
Leslie Kux,
Assistant Commissioner for Policy.
[FR Doc. 2013-02085 Filed 1-30-13; 8:45 am]
BILLING CODE 4160-01-P


