[Federal Register: October 13, 1998 (Volume 63, Number 197)]
[Notices]
[Page 54719-54720]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr13oc98-93]

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

DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration
[Docket No. 97E-0087]


Determination of Regulatory Review Period for Purposes of Patent
Extension; Ray Threaded Fusion Cage<SUP>TM</SUP>

AGENCY: Food and Drug Administration, HHS.

ACTION: Notice.

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

SUMMARY: The Food and Drug Administration (FDA) has determined the
regulatory review period for Ray Threaded Fusion Cage<SUP>TM</SUP> 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 Commissioner of Patents and Trademarks, Department of Commerce,
for the extension of a patent which claims that medical device.

ADDRESSES: Written comments and petitions should be directed to the
Dockets Management Branch (HFA-305), Food and Drug Administration, 5630
Fishers Lane, rm. 1061, Rockville, MD 20852.

FOR FURTHER INFORMATION CONTACT: Brian J. Malkin, Office of Health
Affairs (HFY-20), Food and Drug Administration, 5600 Fishers Lane,
Rockville, MD 20857, 301-827-6620.

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 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 Commissioner of Patents and Trademarks may award
(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 medical device will include
all of the testing phase and approval phase as specified in 35 U.S.C.
156(g)(3)(B).
    FDA recently approved for marketing the medical device Ray Threaded
Fusion Cage<SUP>TM</SUP>. Ray Threaded Fusion Cage<SUP>TM</SUP> is
indicated for use with autogenous bone graft in patients with
degenerative disk disease (DDD) at one or two levels from L2 to S1.
These DDD patients may also have up to Grade 1 spondylolisthesis at the
involved level(s). Subsequent to this approval, the Patent and
Trademark Office received a patent term restoration application for Ray
Threaded Fusion Cage<SUP>TM</SUP> (U.S. Patent No. 4,961,740) from
United States Surgical Corp., and the Patent and Trademark Office
requested FDA's assistance in determining this patent's eligibility for
patent term restoration. In a letter dated April 11, 1997, FDA advised
the Patent and Trademark Office that this medical device had undergone
a regulatory review period and that the approval of Ray Threaded Fusion
Cage<SUP>TM</SUP> represented the first permitted commercial marketing
or use of the product. Shortly 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
Ray Threaded Fusion Cage<SUP>TM</SUP> is 1,861 days. Of this time,
1,357 days occurred during the testing phase of the regulatory review
period, while 504 days occurred during the approval phase. These
periods of time were derived from the following dates:
    1. The date a clinical investigation involving this device was
begun: September 27, 1991. The applicant claims that the
investigational device exemption (IDE) required under section 520(g) of
the Federal Food, Drug, and Cosmetic Act (the act) (21 U.S.C. 360j(g))
for human tests to begin became effective on November 15, 1991.
However, FDA records indicate that the IDE was determined substantially
complete for clinical studies to have begun on September 27, 1991,
which represents the IDE effective date.
    2. The date the application was initially submitted with respect to
the device under section 515 of the act (21 U.S.C. 360e): June 14,
1995. FDA has verified the applicant's claim that the premarket
approval application (PMA) for Ray Threaded Fusion Cage<SUP>TM</SUP>
(PMA P950019) was initially submitted June 14, 1995.
    3. The date the application was approved: October 29, 1996. FDA has
verified the applicant's claim that PMA P950019 was approved on October
29, 1996.
    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 742 days of
patent term extension.
    Anyone with knowledge that any of the dates as published is
incorrect may, on or before December 14, 1998, submit to the Dockets
Management Branch (address above) written comments and ask for a
redetermination. Furthermore, any interested person may petition FDA,
on or before April 12, 1999, 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 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.
    Comments and petitions should be submitted to the Dockets
Management Branch (address above) in three copies (except that
individuals may submit single copies) and identified with the

[[Page 54720]]

docket number found in brackets in the heading of this document.
Comments and petitions may be seen in the Dockets Management Branch
between 9 a.m. and 4 p.m., Monday through Friday.

    Dated: September 28, 1998.
Thomas J. McGinnis,
Deputy Associate Commissioner for Health Affairs.
[FR Doc. 98-27284 Filed 10-9-98; 8:45 am]
BILLING CODE 4160-01-F