
[Federal Register Volume 81, Number 229 (Tuesday, November 29, 2016)]
[Notices]
[Pages 85965-85966]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-28653]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket Nos. FDA-2015-E-4669 and FDA-2015-E-4659]


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

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 IXINITY 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 the U.S. 
Patent and Trademark Office (USPTO), Department of Commerce, for the 
extension of a patent which claims that human biological product.

DATES: Anyone with knowledge that any of the dates as published (see 
the SUPPLEMENTARY INFORMATION section) are incorrect may submit either 
electronic or written comments and ask for a redetermination by January 
30, 2017. 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 May 30, 2017. See 
``Petitions'' in the SUPPLEMENTARY INFORMATION section for more 
information.

ADDRESSES: You may submit comments as follows:

Electronic Submissions

    Submit electronic comments in the following way:
     Federal eRulemaking Portal: https://www.regulations.gov. 
Follow the instructions for submitting comments. Comments submitted 
electronically, including attachments, to https://www.regulations.gov 
will be posted to the docket unchanged. Because your comment will be 
made public, you are solely responsible for ensuring that your comment 
does not include any confidential information that you or a third party 
may not wish to be posted, such as medical information, your or anyone 
else's Social Security number, or confidential business information, 
such as a manufacturing process. Please note that if you include your 
name, contact information, or other information that identifies you in 
the body of your comments, that information will be posted on https://www.regulations.gov.
     If you want to submit a comment with confidential 
information that you do not wish to be made available to the public, 
submit the comment as a written/paper submission and in the manner 
detailed (see ``Written/Paper Submissions'' and ``Instructions'').

Written/Paper Submissions

    Submit written/paper submissions as follows:
     Mail/Hand delivery/Courier (for written/paper 
submissions): Division of Dockets Management (HFA-305), Food and Drug 
Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852.
     For written/paper comments submitted to the Division of 
Dockets Management, FDA will post your comment, as well as any 
attachments, except for information submitted, marked and identified, 
as confidential, if submitted as detailed in ``Instructions.''
    Instructions: All submissions received must include the Docket Nos. 
FDA-2015-E-4669 and FDA-2015-E-4659 for ``Determination of Regulatory 
Review Period for Purposes of Patent Extension; IXINITY.'' Received 
comments will be placed in the dockets and, except for those submitted 
as ``Confidential Submissions,'' publicly viewable at https://www.regulations.gov or at the Division of Dockets

[[Page 85966]]

Management between 9 a.m. and 4 p.m., Monday through Friday.
     Confidential Submissions--To submit a comment with 
confidential information that you do not wish to be made publicly 
available, submit your comments only as a written/paper submission. You 
should submit two copies total. One copy will include the information 
you claim to be confidential with a heading or cover note that states 
``THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION.'' The Agency will 
review this copy, including the claimed confidential information, in 
its consideration of comments. The second copy, which will have the 
claimed confidential information redacted/blacked out, will be 
available for public viewing and posted on https://www.regulations.gov. 
Submit both copies to the Division of Dockets Management. If you do not 
wish your name and contact information to be made publicly available, 
you can provide this information on the cover sheet and not in the body 
of your comments and you must identify this information as 
``confidential.'' Any information marked as ``confidential'' will not 
be disclosed except in accordance with 21 CFR 10.20 and other 
applicable disclosure law. For more information about FDA's posting of 
comments to public dockets, see 80 FR 56469, September 18, 2015, or 
access the information at: http://www.fda.gov/regulatoryinformation/dockets/default.htm.
    Docket: For access to the docket to read background documents or 
the electronic and written/paper comments received, go to https://www.regulations.gov and insert the docket number, found in brackets in 
the heading of this document, into the ``Search'' box and follow the 
prompts and/or go to the Division of Dockets Management, 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. 6250, Silver Spring, MD 20993, 301-796-3600.

SUPPLEMENTARY INFORMATION:

I. Background

    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 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 the 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 
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 IXINITY 
(Coagulation Factor IX (recombinant)). IXINITY is indicated for control 
and prevention of bleeding episodes and for perioperative management, 
in adults and children >=12 years of age with hemophilia B. Subsequent 
to this approval, the USPTO received patent term restoration 
applications for IXINITY (U.S. Patent Nos. 7,645,602 and 8,603,823) 
from the University of North Carolina at Chapel Hill, and the USPTO 
requested FDA's assistance in determining the patents' eligibility for 
patent term restoration. In a letter dated March 10, 2016, FDA advised 
the USPTO that this human biological product had undergone a regulatory 
review period and that the approval of IXINITY represented the first 
permitted commercial marketing or use of the product. Thereafter, the 
USPTO requested that FDA determine the product's regulatory review 
period.

II. Determination of Regulatory Review Period

    FDA has determined that the applicable regulatory review period for 
IXINITY is 2,437 days. Of this time, 1,318 days occurred during the 
testing phase of the regulatory review period, while 1,119 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 28, 
2008. FDA has verified the applicant's claim that the date the 
investigational new drug application became effective was on August 28, 
2008.
    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): April 6, 2012. The applicant claims April 
5, 2012, as the date the biologics license application (BLA) for 
IXINITY (BLA 125426) was initially submitted. However, FDA records 
indicate that BLA 125426 was submitted on April 6, 2012.
    3. The date the application was approved: April 29, 2015. FDA has 
verified the applicant's claim that BLA 125426 was approved on April 
29, 2015.
    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 applications for patent extension, 
this applicant seeks 1,526 days or 505 days of patent term extension.

III. Petitions

    Anyone with knowledge that any of the dates as published are 
incorrect may submit either electronic or written comments and ask for 
a redetermination (see DATES). 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. 
To meet its burden, the petition must be timely (see DATES) and 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.
    Submit petitions electronically to https://www.regulations.gov at 
Docket No. FDA-2013-S-0610. Submit written petitions (two copies are 
required) to the Division of Dockets Management (HFA-305), Food and 
Drug Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852.

    Dated: November 22, 2016.
Leslie Kux,
Associate Commissioner for Policy.
[FR Doc. 2016-28653 Filed 11-28-16; 8:45 am]
 BILLING CODE 4164-01-P


