This web site was copied prior to January 20, 2005. It is now a Federal record managed by the National Archives and Records Administration. External links, forms, and search boxes may not function within this collection. Learn more.   [hide]
skipnavHome|Search|Browse|Resources|Help|What's New|About

Study Phase

Most clinical trials are designated as phase I, II, or III, based on the type of questions that study is seeking to answer: These phases are defined by the Food and Drug Administration in the Code of Federal Regulations.

Click the check box to the left of each study phase that you wish to include in your search. Select one or more study phases. If you do not select a specific phase, trials in any phase that match your other search terms will be retrieved.

U.S. National Library of Medicine, Contact NLM Customer Service
National Institutes of Health, Department of Health & Human Services
Copyright, Privacy, Accessibility, Freedom of Information Act