Federal Register / Vol. 83, No. 248 / Friday, December 28, 2018 / Notices 67293 

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. 

You may submit comments on any 

guidance at any time (see 21 CFR 

10.115(g)(5)). 

Submit written requests for single 

copies of the draft guidance to the 

Division of Drug Information, Center for 

Drug Evaluation and Research, Food 

and Drug Administration, 10001 New 

Hampshire Ave., Hillandale Building, 

4th Floor, Silver Spring, MD 20993– 

0002. Send one self-addressed adhesive 

label to assist that office in processing 

your requests. See the SUPPLEMENTARY

INFORMATION section for electronic 

access to the draft guidance document. 

FOR FURTHER INFORMATION CONTACT: 

Wendy Good, Center for Drug 

Evaluation and Research, Food and 

Drug Administration, 10903 New 

Hampshire Ave., Bldg. 75, Rm. 4714, 

Silver Spring, MD 20993–0002, 240– 

402–1146. 

SUPPLEMENTARY INFORMATION: 

I. Background 

In the Federal Register of June 11, 

2010 (75 FR 33311), FDA announced the 

availability of a guidance for industry 

entitled ‘‘Bioequivalence 

Recommendations for Specific 

Products,’’ which explained the process 

that would be used to make productspecific guidances available to the 

public on FDA’s website at https://

www.fda.gov/Drugs/Guidance

ComplianceRegulatoryInformation/ 

Guidances/default.htm. 

As described in that guidance, FDA 

adopted this process to develop and 

disseminate product-specific guidances 

and to provide a meaningful 

opportunity for the public to consider 

and comment on the guidances. This 

notice announces the availability of a 

draft guidance for generic linaclotide 

oral capsules. 

FDA initially approved new drug 

application 202811 for LINZESS 

(linaclotide) oral capsules in August 

2012. We are now issuing a draft 

guidance for industry on linaclotide oral 

capsules (‘‘Draft Guidance on 

Linaclotide’’). 

In July 2016, Hyman, Phelps & 

McNamara, PC (‘‘Hyman Phelps’’), on 

behalf of Allergan plc submitted a 

citizen petition requesting, among other 

things, that FDA refuse to receive and 

refuse to approve any ANDAs seeking 

approval to market a generic version of 

LINZESS unless, among other things, 

certain BE criteria are met. (Docket No. 

FDA–2016–P–1962, available at https:// 

www.regulations.gov). FDA is separately 

responding to Hyman Phelps’s citizen 

petition today as well. 

The draft guidance is being issued 

consistent with FDA’s good guidance 

practices regulation (21 CFR 10.115). 

The draft guidance, when finalized, will 

represent the current thinking of FDA 

on the design of BE studies to support 

ANDAs for linaclotide oral capsules. It 

does not establish any rights for any 

person and is not binding on FDA or the 

public. You can use an alternative 

approach if it satisfies the requirements 

of the applicable statutes and 

regulations. This guidance is not subject 

to Executive Order 12866. 

II. Electronic Access 

Persons with access to the internet 

may obtain the draft guidance at either 

https://www.fda.gov/Drugs/Guidance

ComplianceRegulatoryInformation/ 

Guidances/default.htm or https://

www.regulations.gov. 

Dated: December 19, 2018. 

Leslie Kux, 

Associate Commissioner for Policy. 

[FR Doc. 2018–28213 Filed 12–27–18; 8:45 am] 

BILLING CODE 4164–01–P 

DEPARTMENT OF HEALTH AND 

HUMAN SERVICES 

Food and Drug Administration 

[Docket Nos. FDA–2017–E–6003, FDA– 

2017–E–6016, and FDA–2017–E–6017] 

Determination of Regulatory Review 

Period for Purposes of Patent 

Extension; PARSABIV 

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 PARSABIV 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 (see the 

SUPPLEMENTARY INFORMATION section) are 

incorrect may submit either electronic 

or written comments and ask for a 

redetermination by February 26, 2019. 

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 

June 26, 2019. 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 February 26, 

2019. The https://www.regulations.gov 

electronic filing system will accept 

comments until 11:59 p.m. Eastern Time 

at the end of February 26, 2019. 

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.’’ 


amozie on DSK3GDR082PROD with NOTICES1
67294 Federal Register / Vol. 83, No. 248 / Friday, December 28, 2018 / Notices 

Instructions: All submissions received 

must include the Docket Nos. FDA– 

2017–E–6003; FDA–2017–E–6016; and 

FDA–2017–E–6017, for ‘‘Determination 

of Regulatory Review Period for 

Purposes of Patent Extension; 

PARSABIV.’’ 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. 

• 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.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, 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, PARSABIV 

(etelcalcetide). PARSABIV is indicated 

for secondary hyperparathyroidism in 

adult patients with chronic kidney 

disease (CKD) on hemodialysis. 

(Limitations of Use: PARSABIV has not 

been studied in adult patients with 

parathyroid carcinoma, primary 

hyperparathyroidism, or with CKD who 

are not on hemodialysis and is not 

recommended for use in these 

populations). Subsequent to this 

approval, the USPTO received patent 

term restoration applications for 

PARSABIV (U.S. Patent Nos. 8,377,880; 

8,999,932; and 9,278,995) from KAI 

Pharmaceuticals, Inc. and the USPTO 

requested FDA’s assistance in 

determining the patent’s eligibility for 

patent term restoration. In a letter dated 

October 16, 2017, FDA advised the 

USPTO that this human drug product 

had undergone a regulatory review 

period and that the approval of 

PARSABIV 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 

PARSABIV is 2,335 days. Of this time, 

1,801 days occurred during the testing 

phase of the regulatory review period, 

while 534 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: September 19, 

2010. FDA has verified the applicant’s 

claim that the date the investigational 

new drug application became effective 

was on September 19, 2010. 

2. The date the application was 

initially submitted with respect to the 

human drug product under section 

505(b) of the FD&C Act: August 24, 

2015. FDA has verified the applicant’s 

claim that the new drug application 

(NDA) for PARSABIV (NDA 208325) 

was initially submitted on August 24, 

2015. 

3. The date the application was 

approved: February 7, 2017. FDA has 

verified the applicant’s claim that NDA 

208325 was approved on February 7, 

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 applications for patent extension, 

this applicant seeks 193 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 


amozie on DSK3GDR082PROD with NOTICES1
Federal Register / Vol. 83, No. 248 / Friday, December 28, 2018 / Notices 67295 

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: December 20, 2018. 

Leslie Kux, 

Associate Commissioner for Policy. 

[FR Doc. 2018–28221 Filed 12–27–18; 8:45 am] 

BILLING CODE 4164–01–P 

DEPARTMENT OF HEALTH AND 

HUMAN SERVICES 

Food and Drug Administration 

[Docket Nos. FDA–2017–E–6700, FDA– 

2017–E–6708, and FDA–2017–E–6701] 

Determination of Regulatory Review 

Period for Purposes of Patent 

Extension; RYDAPT 

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 RYDAPT 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 (see the 

SUPPLEMENTARY INFORMATION section) are 

incorrect may submit either electronic 

or written comments and ask for a 

redetermination by February 26, 2019. 

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 

June 26, 2019. 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 February 26, 

2019. The https://www.regulations.gov 

electronic filing system will accept 

comments until 11:59 p.m. Eastern Time 

at the end of February 26, 2019. 

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 Nos. FDA– 

2017–E–6700; FDA–2017–E–6708; and 

FDA–2017–E–6701 for ‘‘Determination 

of Regulatory Review Period for 

Purposes of Patent Extension; 

RYDAPT.’’ Received comments, those 

filed in a timely manner (see 

ADDRESSES), will be placed in the 

dockets 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. 

• 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.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, 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 


amozie on DSK3GDR082PROD with NOTICES1