
[Federal Register Volume 80, Number 88 (Thursday, May 7, 2015)]
[Notices]
[Pages 26271-26272]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-11004]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket No. FDA-2013-E-1690]


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

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 SYNRIBO 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 the U.S. 
Patent and Trademark Office (USPTO), 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 (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, Food and Drug Administration, 10001 New Hampshire Ave., 
Hillandale Campus, Rm. 3180, Silver Spring, MD 20993, 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 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 USPTO 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 has approved for marketing the human drug product SYNRIBO 
(omacetaxine mepesuccinate). SYNRIBO is indicated for treatment of 
adult patients with chronic or accelerated phase chronic myeloid 
leukemia with resistance and/or intolerance to two or more tyrosine 
kinase inhibitors. Subsequent to this approval, the USPTO received a 
patent term restoration application for SYNRIBO (U.S. Patent No. 
6,987,103) from Robin, Mahon, Maisonneuve, Maloisel, and Blanchard, and 
the USPTO requested FDA's assistance in determining this patent's 
eligibility for patent term restoration. In a letter dated January 30, 
2014, FDA

[[Page 26272]]

advised the USPTO that this human drug product had undergone a 
regulatory review period and that the approval of SYNRIBO represented 
the first permitted commercial marketing or use of the product. 
Thereafter, the USPTO requested that FDA determine the product's 
regulatory review period.
    FDA has determined that the applicable regulatory review period for 
SYNRIBO is 4,182 days. Of this time, 3,037 days occurred during the 
testing phase of the regulatory review period, while 1,145 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: May 17, 2001. The applicant claims May 18, 2001, as the date 
the investigational new drug application (IND) became effective. 
However, FDA records indicate that the IND effective date was May 17, 
2001, 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: September 
8, 2009. The applicant claims September 4, 2009, as the date the new 
drug application (NDA) for SYNRIBO was initially submitted. However, 
FDA records indicate that the NDA was submitted on September 8, 2009.
    3. The date the application was approved: October 26, 2012. FDA has 
verified the applicant's claim that the NDA for SYNRIBO was approved on 
October 26, 2012.
    This determination of the regulatory review period establishes the 
maximum potential length of a patent extension. However, the USPTO 
applies several statutory limitations in its calculations of the actual 
period for patent extension. In its application for patent extension, 
this applicant seeks 1,217 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 6, 2015. 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 3, 2015. 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 1, 2015.
Leslie Kux,
Associate Commissioner for Policy.
[FR Doc. 2015-11004 Filed 5-6-15; 8:45 am]
 BILLING CODE 4164-01-P


