34022 Federal Register / Vol. 86, No. 121 / Monday, June 28, 2021 / Notices 

OMB under the PRA. The collections of 

information in 21 CFR parts 312 and 

320 have been approved under OMB 

control number 0910–0014. 

III. Electronic Access 

Persons with access to the internet 

may obtain the draft guidance at https:// 

www.fda.gov/Drugs/

GuidanceComplianceRegulatory

Information/Guidances/default.htm, 

https://www.fda.gov/vaccines-bloodbiologics/guidance-complianceregulatory-information-biologics/ 

biologics-guidances, https:// 

www.fda.gov/regulatory-information/

search-fda-guidance-documents, or 

https://www.regulations.gov. 

Dated: June 22, 2021. 

Lauren K. Roth, 

Acting Principal Associate Commissioner for 

Policy. 

[FR Doc. 2021–13684 Filed 6–25–21; 8:45 am] 

BILLING CODE 4164–01–P 

DEPARTMENT OF HEALTH AND 

HUMAN SERVICES 

Food and Drug Administration 

[Docket No. FDA–2021–E–0029] 

Determination of Regulatory Review 

Period for Purposes of Patent 

Extension; TAZVERIK 

AGENCY: Food and Drug Administration, 

HHS. 

ACTION: Notice. 

SUMMARY: The Food and Drug 

Administration (FDA or the Agency) has 

determined the regulatory review period 

for TAZVERIK 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. 

DATES: Anyone with knowledge that any 

of the dates as published (see 

SUPPLEMENTARY INFORMATION) are 

incorrect may submit either electronic 

or written comments and ask for a 

redetermination by August 27, 2021. 

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 

December 27, 2021. 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 August 27, 

2021. The https://www.regulations.gov 

electronic filing system will accept 

comments until 11:59 p.m. Eastern Time 

at the end of August 27, 2021. 

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: 

• 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 No. FDA– 

2021–E–0029 for ‘‘Determination of 

Regulatory Review Period for Purposes 

of Patent Extension; TAZVERIK.’’ 

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 between 9 

a.m. and 4 p.m., Monday through 

Friday, 240–402–7500. 

• 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. 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 § 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: https://

www.govinfo.gov/content/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, 5630 Fishers Lane, Rm. 1061, 

Rockville, MD 20852, 240–402–7500. 

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 


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Federal Register / Vol. 86, No. 121 / Monday, June 28, 2021 / Notices 34023 

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, TAZVERIK 

(tazemetostat). TAZVERIK is indicated 

for the treatment of adults and pediatric 

patients aged 16 years and older with 

metastatic or locally advanced 

epithelioid sarcoma not eligible for 

complete resection. This indication is 

approved under accelerated approval 

based on overall response rate and 

duration of response. Continued 

approval for this indication may be 

contingent upon verification and 

description of clinical benefit in 

confirmatory trials. Subsequent to this 

approval, the USPTO received a patent 

term restoration application for 

TAZVERIK (U.S. Patent No. 8,410,088) 

from Epizyme, Inc., and the USPTO 

requested FDA’s assistance in 

determining the patent’s eligibility for 

patent term restoration. In a letter dated 

March 1, 2021, FDA advised the USPTO 

that this human drug product had 

undergone a regulatory review period 

and that the approval of TAZVERIK 

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 

TAZVERIK is 1,618 days. Of this time, 

1,372 days occurred during the testing 

phase of the regulatory review period, 

while 246 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 (FD&C Act) (21 U.S.C. 

355(i)) became effective: August 21, 

2015. FDA has verified the applicant’s 

claim that the date the investigational 

new drug application became effective 

was on August 21, 2015. 

2. The date the application was 

initially submitted with respect to the 

human drug product under section 505 

of the FD&C Act: May 23, 2019. FDA has 

verified the applicant’s claim that the 

new drug application (NDA) for 

TAZVERIK (NDA 211723) was initially 

submitted on May 23, 2019. 

3. The date the application was 

approved: January 23, 2020. FDA has 

verified the applicant’s claim that NDA 

211723 was approved on January 23, 

2020. 

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 650 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 § 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 

§ 60.30, including but not limited to: 

Must be timely (see DATES), must be 

filed in accordance with § 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: June 22, 2021. 

Lauren K. Roth, 

Acting Principal Associate Commissioner for 

Policy. 

[FR Doc. 2021–13743 Filed 6–25–21; 8:45 am] 

BILLING CODE 4164–01–P 

DEPARTMENT OF HEALTH AND 

HUMAN SERVICES 

Food and Drug Administration 

[Docket No. FDA–2019–E–5831] 

Determination of Regulatory Review 

Period for Purposes of Patent 

Extension; GORE CARDIOFORM ASD 

OCCLUDER 

AGENCY: Food and Drug Administration, 

HHS. 

ACTION: Notice. 

SUMMARY: The Food and Drug 

Administration (FDA or Agency) has 

determined the regulatory review period 

for GORE CARDIOFORM ASD 

OCCLUDER 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. 

DATES: Anyone with knowledge that any 

of the dates as published (see 

SUPPLEMENTARY INFORMATION) are 

incorrect may submit either electronic 

or written comments and ask for a 

redetermination by August 27, 2021. 

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 

December 27, 2021. 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 August 27, 

2021. The https://www.regulations.gov 

electronic filing system will accept 

comments until 11:59 p.m. Eastern Time 

at the end of August 27, 2021. 

Comments received by mail/hand 

delivery/courier (for written/paper 


khammond on DSKJM1Z7X2PROD with NOTICES