
[Federal Register Volume 82, Number 167 (Wednesday, August 30, 2017)]
[Notices]
[Pages 41274-41276]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-18380]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

[Docket Nos. FDA-2016-E-1283; FDA-2016-E-1291]


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

AGENCY: Food and Drug Administration, HHS.

ACTION: Notice.

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SUMMARY: The Food and Drug Administration (FDA or the Agency) has 
determined the regulatory review period for KENGREAL 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 drug 
product.

DATES: Anyone with knowledge that any of the dates as published (in the 
SUPPLEMENTARY INFORMATION section) are incorrect may submit either 
electronic or written comments and ask for a redetermination by October 
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 February 26, 2018. 
See ``Petitions'' in the SUPPLEMENTARY INFORMATION section for more 
information.

ADDRESSES: You may submit comments as follows. Please note that late, 
untimely filed comments will not be considered. Electronic comments 
must be submitted on or before October 30, 2017. The https://www.regulations.gov electronic filing system will accept comments until 
midnight Eastern Time at the end of October 30, 2017. Comments received 
by mail/hand delivery/courier (for written/paper submissions) will be 
considered timely if they are postmarked or the delivery service 
acceptance receipt is on or before that date.

Electronic Submissions

    Submit electronic comments in the following way:

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     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): Dockets Management Staff (HFA-305), Food and Drug 
Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852.
     For written/paper comments submitted to the Dockets 
Management Staff, 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-2016-E-1283 and FDA-2016-E-1291 for ''Determination of Regulatory 
Review Period for Purposes of Patent Extension; KENGREAL.'' Received 
comments, those filed in a timely manner (see ADDRESSES), will be 
placed in the docket and, except for those submitted as ``Confidential 
Submissions,'' publicly viewable at https://www.regulations.gov or at 
the Dockets Management Staff Office 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 Dockets Management Staff Office. 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: https://www.gpo.gov/fdsys/pkg/FR-2015-09-18/pdf/2015-23389.pdf.
    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 Dockets Management Staff Office, 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 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 KENGREAL 
(cangrelor tetrasodium). KENGREAL is indicated as an adjunct to 
percutaneous coronary intervention for reducing the risk of 
periprocedural myocardial infarction, repeat coronary 
revascularization, and stent thrombosis in patients who have not been 
treated with a P2Y12 platelet inhibitor and are not being 
given a glycoprotein IIb/IIIa inhibitor. Subsequent to this approval, 
the USPTO received patent term restoration applications for KENGREAL 
(U.S. Patent Nos. 6,114,313 and 6,130,208) from AstraZeneca UK Limited, 
and the USPTO requested FDA's assistance in determining the patents' 
eligibility for patent term restoration. In a letter dated July 12, 
2016, FDA advised the USPTO that this human drug product had undergone 
a regulatory review period and that the approval of KENGREAL 
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 
KENGREAL is 6,122 days. Of this time, 5,338 days occurred during the 
testing phase of the regulatory review period, while 784 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: September 19, 1998. The applicant claims August 20, 1998, as 
the date the investigational new drug application (IND) became 
effective. However, FDA records indicate that the IND effective date 
was September 19, 1998, which

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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: April 30, 
2013. FDA has verified the applicant's claim that the new drug 
application (NDA) for KENGREAL (NDA 204958) was initially submitted on 
April 30, 2013.
    3. The date the application was approved: June 22, 2015. FDA has 
verified the applicant's claim that NDA 204958 was approved on June 22, 
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 application for patent extension, 
this applicant seeks 5 years 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, under 
21 CFR 60.24, ask for a redetermination (see DATES). Furthermore, as 
specified in 21 CFR 60.30, 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 comply with all the requirements of 21 CFR 60.30, 
including but not limited to: Must be timely (see DATES), must be filed 
in accordance with 21 CFR 10.20, must contain sufficient facts to merit 
an FDA investigation, and must certify that a true and complete copy of 
the petition has been served upon the patent applicant. (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 Dockets Management Staff (HFA-305), Food and Drug 
Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852.

    Dated: August 24, 2017.
Anna K. Abram,
Deputy Commissioner for Policy, Planning, Legislation, and Analysis.
[FR Doc. 2017-18380 Filed 8-29-17; 8:45 am]
 BILLING CODE 4164-01-P


