Submit Comments by

Although you can comment on any guidance at any time (see 21 CFR 10.115(g)(5)), to ensure that the FDA considers your comment on a draft guidance before it begins work on the final version of the guidance, submit either online or written comments on the draft guidance before the close date.

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-2023-D-5259


Docket Number:
FDA-2023-D-5259
Issued by:

Guidance Issuing Office

Center for Drug Evaluation and Research

Center for Biologics Evaluation and Research

Additional Guidance Resources

This guidance document provides recommendations on the design and analysis of trials 16 conducted under a master protocol as well as guidance on the submission of documentation to 17 support regulatory review.