Failure to Respond to an ANDA CRL – What Does the FDA Guidance Say?
The United States Food and Drug Administration (US FDA) released guidance in December 2022, a revision of the guidance titled ‘Failure to Response to an ANDA Complete Response Letter (CRL) Within the Regulatory Timeframe Guidance for Industry,’ of July 2022. It is meant to guide the applicants of Abbreviated New Drug Applications (ANDAs) submitted under section 505(j) of the Federal Food, Drug, and Cosmetic Act (FD&C Act) (21 U.S.C. 355(j)). A complete and relevant response to a CRL is crucial for the approval of the generic drug.