Braintree Laboratories, Inc.Suflave

NDA 215344 COMPLETE RESPONSE

Braintree Laboratories, Inc. Attention: Vivian Caballero

Vice President, Regulatory Affairs 60 Columbian Street West

P.O. Box 850929

Braintree, MA 02185

Dear Ms. Caballero:

Please refer to your new drug application (NDA) dated and received on August 6, 2021, submitted under section 505(b) of the Federal Food, Drug, and Cosmetic Act for Suflave (polyethylene glycol 3350, sodium sulfate, potassium chloride, magnesium sulfate, and sodium chloride) for oral solution.

We have completed our review of this application and have determined that we cannot approve this application in its present form. We have described our reasons for this action below and, where possible, our recommendations to address these issues.

PRODUCT QUALITY/ FACILITY INSPECTION DEFICIENCIES

During a recent inspection of ™ the manufacturing facility for this application, our field investigator conveyed deficiencies to the representative of the facility. Satisfactory resolution of these deficiencies is required before this application may be approved.

PRESCRIBING INFORMATION

Submit draft labeling that is responsive to our electronic communication dated June 1, 2022.

Prior to resubmitting the labeling, use the SRPI checklist to correct any formatting errors to ensure conformance with the format items in regulations and guidances. In addition, submit updated content of labeling [21 CFR 314.50(1)(1)(i))] in structured product labeling (SPL) format as described at FDA.gov.'

’ http:/www.fda.gow/Forlndustry/DataStandards/StructuredProductLabeling/default.htm

U.S. Food and Drug Administration Silver Spring, MD 20993 www.fda.gov

Reference ID: 4994982

NDA 215344 Page 2

To facilitate review of your submission, provide a highlighted or marked-up copy that shows all changes, as well as a clean Word version. The marked-up copy should include annotations that support any proposed changes.

Your proposed Prescribing Information (PI) must conform to the content and format regulations found at 21 CFR 201.56(a) and (d) and 201.57. As you develop your proposed PI, we encourage you to review the labeling review resources on the

Prescription Drug Labeling Resources? and Pregnancy and Lactation Labeling Final Rule’ websites, which include:

e The Final Rule (Physician Labeling Rule) on the content and format of the PI for human drug and biological products

e The Final Rule (Pregnancy and Lactation Labeling Rule) on the content and format of information in the PI on pregnancy, lactation, and females and males of reproductive potential

e Regulations and related guidance documents

e Asample tool illustrating the format for Highlights and Contents, and

e The Selected Requirements for Prescribing Information (SRPI) - a checklist of important format items from labeling regulations and guidances.

e FDA's established pharmacologic class (EPC) text phrases for inclusion in the Highlights Indications and Usage heading.

e Additional resources for the PI, patient labeling, and carton/container labeling. CARTON AND CONTAINER LABELING

Submit draft carton and container labeling based on your submissions received on June 3, 2022.

PROPRIETARY NAME

(1) Please refer to correspondence dated, October 21, 2021, which addresses the proposed proprietary name, Suflave. This name was found acceptable pending

2 https://www.fda.gov/drugs/laws-acts-and-rules/prescription-drug-labeling-resources 3 https://www.fda.gov/drugs/labeling-information-drug-products/pregnancy-and-lactation-labeling-drugs- finalrule

U.S. Food and Drug Administration Silver Spring, MD 20993 www.fda.gov

Reference ID: 4994982

NDA 215344 Page 3

approval of the application in the current review cycle. Please resubmit the proposed proprietary name when you respond to the application deficiencies.

SAFETY UPDATE

When you respond to the above deficiencies, include a safety update as described at 21 CFR 314.50(d)(5)(vi)(b). The safety update should include data from all nonclinical and clinical studies/trials of the drug under consideration regardless of indication, dosage form, or dose level.

(1) Describe in detail any significant changes or findings in the safety profile.

(2) When assembling the sections describing discontinuations due to adverse events, serious adverse events, and common adverse events, incorporate new safety data as follows:

e Present new safety data from the studies/clinical trials for the proposed indication using the same format as in the original submission.

e Present tabulations of the new safety data combined with the original application data.

e Include tables that compare frequencies of adverse events in the original application with the retabulated frequencies described in the bullet above.

e For indications other than the proposed indication, provide separate tables for the frequencies of adverse events occurring in Clinical trials.

(3) Present a retabulation of the reasons for premature trial discontinuation by incorporating the drop-outs from the newly completed trials. Describe any new trends or patterns identified.

(4) Provide case report forms and narrative summaries for each subject who died during a Clinical trial or who did not complete a trial because of an adverse event. In addition, provide narrative summaries for serious adverse events.

(5) Describe any information that suggests a substantial change in the incidence of common, but less serious, adverse events between the new data and the original application data.

(6) Provide updated exposure information for the clinical studies/trials (e.g., number of subjects, person time).

U.S. Food and Drug Administration Silver Spring, MD 20993 www.fda.gov

Reference ID: 4994982

NDA 215344 Page 4

(7) Provide a summary of worldwide experience on the safety of this drug. Include an updated estimate of use for drug marketed in other countries.

(8) Provide English translations of current approved foreign labeling not previously submitted.

OTHER

Within one year after the date of this letter, you are required to resubmit or take other actions available under 21 CFR 314.110. If you do not take one of these actions, we may consider your lack of response a request to withdraw the application under

21 CFR 314.65. You may also request an extension of time in which to resubmit the application.

A resubmission must fully address all the deficiencies listed in this letter and should be clearly marked with "RESUBMISSION" in large font, bolded type at the beginning of the cover letter of the submission. The cover letter should clearly state that you consider

his resubmission a complete response to the deficiencies outlined in this letter. A partial response to this letter will not be processed as a resubmission and will not start a new review cycle.

You may request a meeting or teleconference with us to discuss what steps you need to ‘ake before the application may be approved. If you wish to have such a meeting, submit your meeting request as described in the draft guidance for industry Formal Meetings Between the FDA and Sponsors or Applicants of PDUFA Products.

The drug product may not be legally marketed until you have been notified in writing hat this application is approved.

If you have any questions, contact Anum Shami, PharmD, Regulatory Project Manager,

at 301-837-7103 or anum.shami@fda.hhs.gov.

Sincerely, {See appended electronic signature page}

Jessica J. Lee, MD, MMSc

Director

Division of Gastroenterology

Office of Immunology and Inflammation Center for Drug Evaluation and Research

U.S. Food and Drug Administration Silver Spring, MD 20993 www.fda.gov

Reference ID: 4994982

Signature Page 1 of 1

This is a representation of an electronic record that was signed electronically. Following this are manifestations of any and all electronic signatures for this electronic record.

JESSICA J LEE 06/06/2022 04:19:32 PM

Reference ID: 4994982