Notice2025-18780
Determination of Regulatory Review Period for Purposes of Patent Extension; DIAMONDBACK 360 CORONARY ORBITAL ATHERECTOMY DEVICE
Primary source
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Published
September 29, 2025
Issuing agencies
Health and Human Services DepartmentFood and Drug Administration
Abstract
The Food and Drug Administration (FDA or the Agency) has determined the regulatory review period for DIAMONDBACK 360 CORONARY ORBITAL ATHERECTOMY DEVICE 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 medical device.
Full Text
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<title>Federal Register, Volume 90 Issue 186 (Monday, September 29, 2025)</title>
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[Federal Register Volume 90, Number 186 (Monday, September 29, 2025)]
[Notices]
[Pages 46606-46607]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-18780]
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DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
[Docket No. FDA-2017-E-5755]
Determination of Regulatory Review Period for Purposes of Patent
Extension; DIAMONDBACK 360 CORONARY ORBITAL ATHERECTOMY DEVICE
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 DIAMONDBACK 360 CORONARY
ORBITAL ATHERECTOMY DEVICE 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 medical device.
ADDRESSES: You may submit comments as follows. Please note that late,
untimely filed comments will not be considered. The <a href="https://www.regulations.gov">https://www.regulations.gov</a> electronic filing system will accept comments until
11:59 p.m. Eastern Time at the end of November 28, 2025. Comments
received by mail/hand delivery/courier (for written/paper submissions)
will be considered timely if they are received on or before that date.
Electronic Submissions
Submit electronic comments in the following way:
<bullet> Federal eRulemaking Portal: <a href="https://www.regulations.gov">https://www.regulations.gov</a>.
Follow the instructions for submitting comments. Comments submitted
electronically, including attachments, to <a href="https://www.regulations.gov">https://www.regulations.gov</a>
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 <a href="https://www.regulations.gov">https://www.regulations.gov</a>.
<bullet> 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:
<bullet> 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.
<bullet> 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 No.
FDA-2017-E-5755 for ``Determination of Regulatory Review Period for
Purposes of Patent Extension; DIAMONDBACK 360 CORONARY ORBITAL
ATHERECTOMY DEVICE.'' 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 <a href="https://www.regulations.gov">https://www.regulations.gov</a> or at the Dockets Management Staff between 9 a.m.
and 4 p.m., Monday through Friday, 240-402-7500.
<bullet> 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 <a href="https://www.regulations.gov">https://www.regulations.gov</a>.
Submit both copies to the Dockets Management Staff. 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 Sec. 10.20 (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: <a href="https://www.govinfo.gov/content/pkg/FR-2015-09-18/pdf/2015-23389.pdf">https://www.govinfo.gov/content/pkg/FR-2015-09-18/pdf/2015-23389.pdf</a>.
Docket: For access to the docket to read background documents or
the electronic and written/paper comments received, go to <a href="https://www.regulations.gov">https://www.regulations.gov</a> 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, 5630 Fishers Lane,
Rm. 1061, Rockville, MD 20852, 240-402-7500.
FOR FURTHER INFORMATION CONTACT: Jack Dan, Office of Regulatory Policy,
Food and Drug Administration, 10903 New Hampshire Ave., Bldg. 51, Rm.
6200, Silver Spring, MD 20993, 240-402-6940.
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 medical devices, the testing
phase begins with a clinical investigation of the device and runs until
the approval phase begins. The approval phase starts with the initial
submission of an application to market the device and continues until
permission to market the device is granted. 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
[[Page 46607]]
was issued), FDA's determination of the length of a regulatory review
period for a medical device will include all of the testing phase and
approval phase as specified in 35 U.S.C. 156(g)(3)(B).
FDA has approved for marketing the medical device, DIAMONDBACK 360
CORONARY ORBITAL ATHERECTOMY DEVICE. DIAMONDBACK 360 CORONARY ORBITAL
ATHERECTOMY DEVICE is indicated for a change in the design of the
DIAMONDBACK 360 Coronary Orbital Atherectomy System (OAS), called OAS
Micro Crown. Subsequent to this approval, the USPTO received a patent
term restoration application for DIAMONDBACK 360 CORONARY ORBITAL
ATHERECTOMY DEVICE (U.S. Patent No. 9,055,966) from Cardiovascular
Systems, Inc., and the USPTO requested FDA's assistance in determining
this patent's eligibility for patent term restoration. In a letter
dated October 16, 2017, FDA advised the Patent and Trademark Office
that this medical device had undergone a regulatory review period and
that the approval of DIAMONDBACK 360 CORONARY ORBITAL ATHERECTOMY
DEVICE represented the first permitted commercial marketing or use of
the product. Thereafter, the USPTO requested that the FDA determine the
product's regulatory review period.
II. Determination of Regulatory Review Period
FDA has determined that the applicable regulatory review period for
DIAMONDBACK 360 CORONARY ORBITAL ATHERECTOMY DEVICE is 1,069 days. Of
this time, 848 days occurred during the testing phase of the regulatory
review period, while 221 days occurred during the approval phase. These
periods of time were derived from the following dates:
1. The date an exemption under section 520(g) of the Federal Food,
Drug, and Cosmetic Act (the act) (21 U.S.C. 360j(g)) involving this
device became effective: April 17, 2014. FDA has verified the
applicant's claim that the date the investigational device exemption
(IDE) required under section 520(g) of the act for human tests to begin
became effective April 17, 2014.
2. The date an application was initially submitted with respect to
the device under section 515 of the Federal Food, Drug, and Cosmetic
Act (21 U.S.C. 360e): August 11, 2016. FDA has verified the applicant's
claim that the premarket approval application (PMA) for DIAMONDBACK 360
CORONARY ORBITAL ATHERECTOMY DEVICE (PMA P130005/S014) was initially
submitted August 11, 2016.
3. The date the application was approved: March 19, 2017. FDA has
verified the applicant's claim that PMA P130005/S014 was approved on
March 19, 2017.
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(s) for patent
extension, this applicant seeks 645 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, under
21 CFR 60.24, ask for a redetermination (see DATES). Furthermore, as
specified in Sec. 60.30 (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 Sec. 60.30, including but not limited to: must be timely (see
DATES), must be filed in accordance with Sec. 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 <a href="https://www.regulations.gov">https://www.regulations.gov</a> 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.
Grace R. Graham,
Deputy Commissioner for Policy, Legislation, and International Affairs.
[FR Doc. 2025-18780 Filed 9-26-25; 8:45 am]
BILLING CODE 4164-01-P
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