For drugs please refer to FDA IND Application Reporting: Protocol Amendments Sponsors are expected to submit protocol amendments for new protocols or changes to existing protocols before implementation of the respective changes if there are safety concerns with the proposed change. New studies may begin when the sponsor has submitted the change to FDA for its review and the new protocol or changes to the existing protocol have been approved by the Institutional Review Board (IRB) with the responsibility for review and approval of the studies. If the IND application sponsor desires FDA to comment on a submission, they should submit a request for such comment and the specific questions that FDA's response should address and follow-up with the project manager to obtain informal feedback.
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Juliane Carvalho RAC, MSc
Lead Regulatory Health Project Manager at CBER - OTP
US Food and Drug Administration
United States
**My comments are an informal communication and represent my own best judgement. These comments do not bind or obligate the U.S. Food and Drug Administration**
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Original Message:
Sent: 31-Mar-2024 12:24
From: Anonymous Member
Subject: Administrative letter vs protocol amendment
This message was posted by a user wishing to remain anonymous
When is it to use an administrative letter for change(s) in the study vs when a protocol amendment is required for FDA ? Any resources, guidelines, regulations on when to use administrative letter are much appreciated.