Unsatisfactory Resolution of Facility Inspection Deficiencies
Severity: criticalDuring recent inspections of Pharmaceutics International manufacturing and testing facilities (FEI 3006503102 and FEI 1000513101), field investigators conveyed deficiencies. Satisfactory resolution of these deficiencies is required before this application may be approved.
Recommended response: Address all deficiencies identified during the facility inspections at Pharmaceutics International (FEI 3006503102 and FEI 1000513101) to ensure satisfactory resolution and compliance with GMP.
Inadequate Prescribing Information and Formatting
Severity: majorSubmit draft labeling responsive to the electronic communication dated December 15, 2021. Correct formatting errors using the SRPI checklist to ensure conformance with regulations and guidances. Submit updated content of labeling in structured product labeling (SPL) format as described at FDA.gov, conforming to 21 CFR 314.50(l)(1)(i), 21 CFR 201.56(a) and (d), and 201.57. Provide a highlighted/marked-up copy and a clean Word version.
Recommended response: Revise prescribing information to address all agency comments, ensure compliance with formatting regulations (21 CFR 201.56, 201.57), and submit in SPL format (21 CFR 314.50(l)(1)(i)) with marked-up and clean versions.
Cited: 21 CFR 314.50(l)(1)(i), 21 CFR 201.56(a), 21 CFR 201.56(d), 21 CFR 201.57
Resubmission of Proprietary Name Required
Severity: minorThe proposed proprietary name, BRIXADI, was found acceptable pending approval of the application in the current review cycle. Resubmit the proposed proprietary name when responding to the application deficiencies.
Recommended response: Resubmit the proprietary name BRIXADI as part of the complete response to the application deficiencies.
Comprehensive Safety Update Required
Severity: majorInclude a safety update as described at 21 CFR 314.50(d)(5)(vi)(b) when responding to deficiencies. This update must detail significant changes or findings in the safety profile, present new safety data from studies, provide tabulations of new and combined data, include tables comparing frequencies of adverse events, provide separate tables for other indications, retabulate reasons for premature trial discontinuation, provide case report forms and narrative summaries for deaths/serious adverse events, describe changes in incidence of common AEs, provide updated exposure information, summarize worldwide experience, and include English translations of current approved foreign labeling.
Recommended response: Provide a comprehensive safety update in accordance with 21 CFR 314.50(d)(5)(vi)(b), incorporating all new nonclinical and clinical safety data, detailed analyses, and worldwide experience.
Cited: 21 CFR 314.50(d)(5)(vi)(b)
Postmarketing Study Requirements Identified
Severity: infoIf approved, postmarketing studies will be required under section 505(o)(3) of the FDCA to assess known serious risks (precipitated withdrawal) and unexpected risks (systemic histopathological changes, reproductive/developmental effects, or cancer due to elemental impurities or leachables). Specifically, two postmarketing clinical trials are required to explore safe accelerated dose-initiation regimens for weekly and monthly BRIXADI, with prespecified case definitions for precipitated withdrawal/lack of tolerability and dose inadequacy.
Recommended response: Prepare protocols for the two specified postmarketing clinical trials addressing precipitated withdrawal and dose initiation, and consider potential risks from elemental impurities/leachables as part of future development.
Cited: section 505(o)(3) of the FDCA