U.S. flag An official website of the United States government
  1. Home
  2. Regulatory Information
  3. Search for FDA Guidance Documents
  4. Postapproval Changes to Drug Substances Guidance for Industry
  1. Search for FDA Guidance Documents


Postapproval Changes to Drug Substances Guidance for Industry September 2018

Docket Number:
Issued by:
Guidance Issuing Office
Center for Drug Evaluation and Research

This guidance provides recommendations to holders of approved new drug applications (NDAs), abbreviated new drug applications (ANDAs), new animal drug applications (NADAs), and abbreviated new animal drug applications (ANADAs) and holders of drug master files (DMFs) and veterinary master files (VMFs) who want to make a change to the drug substance manufacturing process during the drug product application’s postapproval period. It does not address holders of biologics license applications (BLAs) or holders of any master files cross-referenced in BLAs.

Submit Comments

You can submit online or written comments on any guidance at any time (see 21 CFR 10.115(g)(5))

If unable to submit comments online, please mail written comments to:

Dockets Management
Food and Drug Administration
5630 Fishers Lane, Rm 1061
Rockville, MD 20852

All written comments should be identified with this document's docket number: FDA-2018-D-3151.

Back to Top