Assyro AI
US FDAUnited StatesALApproval Letter

Approval Letter Other 213260 (Jan 1, 2023)

Issued January 1, 2023

Issued

January 1, 2023

Application

Other • 213260

Review center

Other

Stage

Final Decision

Letter type

Approval Letter

Response due January 1, 2024Product may be marketed.

Summary

This document is a Complete Response Letter from the FDA to an applicant for New Drug Application (NDA) 213260, indicating that the application cannot be approved in its current form due to various deficiencies. It outlines the specific issues that need to be addressed before approval can be granted, including manufacturing facility observations, product reformulation, bioequivalence studies, labeling updates, safety updates, and environmental assessment requirements.

Key points

  • Satisfactorily resolve objectionable conditions, which may include preapproval inspection and/or adequate facility responses.
  • Satisfactorily resolve observations noted at the manufacturing facility.
  • List communications submitted to or held with the Agency to facilitate resolution of observed objectionable conditions or deficiencies at the facility.
  • Reformulate the proposed product and conduct additional relative bioavailability studies to demonstrate bioequivalence to the listed drug, or conduct a clinical study to support effective and safe use of the proposed atorvastatin oral suspension product.
  • Review labeling review resources on PLR Requirements for Prescribing Information and Pregnancy and Lactation Labeling Final Rule websites.
  • If revising labeling, use the SRPI checklist to ensure conformity with format items in regulations and guidances.
  • Include updated content of labeling in Structured Product Labeling (SPL) format [21 CFR 314.50(l)(1)(i)].
  • Resubmit the proposed proprietary name when responding to application deficiencies.

Cited reasons

  • Unresolved Manufacturing Facility Observations
  • Lack of Bioequivalence or Clinical Support for Atorvastatin Oral Suspension
  • Inadequate Safety Update and Data Presentation
  • Incorrect Environmental Assessment Exemption Request
  • Proprietary Name Review Terminated
  • Missing English Translations of Foreign Labeling
  • The application for atorvastatin oral suspension received a Complete Response Letter due to unresolved manufacturing facility observations, lack of bioequivalence data or clinical support for the proposed formulation, inadequate safety update documentation, an incorrectly submitted environmental assessment exemption request, and missing English translations for foreign labeling. The proprietary name review was also terminated pending resolution of these issues.

Recommended actions

  • Satisfactorily resolve objectionable conditions, which may include preapproval inspection and/or adequate facility responses.
  • Satisfactorily resolve observations noted at the manufacturing facility.
  • List communications submitted to or held with the Agency to facilitate resolution of observed objectionable conditions or deficiencies at the facility.
  • Reformulate the proposed product and conduct additional relative bioavailability studies to demonstrate bioequivalence to the listed drug, or conduct a clinical study to support effective and safe use of the proposed atorvastatin oral suspension product.
  • Review labeling review resources on PLR Requirements for Prescribing Information and Pregnancy and Lactation Labeling Final Rule websites.
  • If revising labeling, use the SRPI checklist to ensure conformity with format items in regulations and guidances.
  • Include updated content of labeling in Structured Product Labeling (SPL) format [21 CFR 314.50(l)(1)(i)].
  • Resubmit the proposed proprietary name when responding to application deficiencies.

Deficiency summary

The application for atorvastatin oral suspension received a Complete Response Letter due to unresolved manufacturing facility observations, lack of bioequivalence data or clinical support for the proposed formulation, inadequate safety update documentation, an incorrectly submitted environmental assessment exemption request, and missing English translations for foreign labeling. The proprietary name review was also terminated pending resolution of these issues.

Findings

Unresolved Manufacturing Facility Observations

Severity: major

Satisfactory resolution of objectionable conditions noted at the manufacturing facility is required, potentially involving a preapproval inspection and/or adequate facility responses, before the application can be approved.

Recommended response: Address all manufacturing observations, provide comprehensive facility responses, and prepare for a preapproval inspection.

Lack of Bioequivalence or Clinical Support for Atorvastatin Oral Suspension

Severity: critical

The proposed product requires reformulation and additional relative bioavailability studies to demonstrate bioequivalence to the listed drug, or a new clinical study to support its effective and safe use.

Recommended response: Conduct necessary reformulation and perform new bioequivalence studies or a comprehensive clinical study to support the product's efficacy and safety.

Inadequate Safety Update and Data Presentation

Severity: major

A comprehensive safety update is required as per 21 CFR 314.50(d)(5)(vi)(b). This includes detailed changes in the safety profile, retabulation of adverse events (combined with original data, comparative tables, separate tables for other indications), reasons for premature discontinuation, case report forms/narratives for deaths/serious adverse events, updated exposure information, and a summary of worldwide safety experience.

Recommended response: Provide a complete and detailed safety update, ensuring all requested data, analyses, and documentation are included and presented in the specified format.

Cited: 21 CFR 314.50(d)(5)(vi)(b)

Incorrect Environmental Assessment Exemption Request

Severity: minor

The environmental assessment exemption request needs to be resubmitted in compliance with 21 CFR 314.50(d)(1)(iii) and 21 CFR 25.30, 25.31, or 25.40.

Recommended response: Resubmit the environmental assessment exemption request, ensuring full compliance with the cited regulations.

Cited: 21 CFR 314.50 (d) (l) (iii), CFR § 25.30, 25.31, 25.40

Proprietary Name Review Terminated

Severity: minor

The review of the proposed proprietary name was terminated due to other deficiencies in the application. The proprietary name should be resubmitted once all other application deficiencies are addressed.

Recommended response: Resubmit the proposed proprietary name only after all other application deficiencies have been fully resolved.

Missing English Translations of Foreign Labeling

Severity: minor

English translations of all current approved foreign labeling not previously submitted must be provided.

Recommended response: Submit English translations for all approved foreign labeling that has not yet been provided to the agency.

Regulatory context

Submission stage
final decision
Regulatory pathway
NDA

Impact

Impact score
0.95
Estimated delay
365 days
Estimated rework cost
$0
Subsequent action
resubmission

Strategic insights

Key themes include significant manufacturing quality issues, fundamental clinical/bioequivalence concerns requiring reformulation or new studies, and substantial deficiencies in safety data reporting and administrative documentation, all preventing approval.

Regulatory change impact: Pending sponsor mitigation plan

Approval likelihood after response: 5%

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