ClinicalTrials.gov offers up-to-date information for locating federally and privately supported clinical trials for a wide range of diseases and conditions. A clinical trial (also clinical research) is a research study in human volunteers to answer specific health questions. Interventional trials determine whether experimental treatments or new ways of using known therapies are safe and effective under controlled environments. Observational trials address health issues in large groups of people or populations in natural settings.
ClinicalTrials.gov currently contains approximately 11,800 clinical studies sponsored by the National Institutes of Health, other federal agencies, and private industry. Studies listed in the database are conducted in all 50 States and in over 90 countries. ClinicalTrials.gov receives over 2.5 million page views per month and hosts approximately 16,000 visitors daily.
The U.S. National Institutes of Health (NIH), through its National Library of Medicine (NLM), has developed this site in collaboration with the Food and Drug Administration (FDA), as a result of the FDA Modernization Act, which was passed into law in November 1997. See the FDA document - Guidance for Industry: Information Program on Clinical Trials for Serious or Life-Threatening Diseases and Conditions (March 2002).
Learn more about the site from its Frequently Asked Questions and Factsheet.
See Submitting studies for information about listing studies in ClinicalTrials.gov.
See Linking to ClinicalTrials.gov for information about linking to this site from your Web page.
Please read our Terms and Conditions regarding use of ClinicalTrials.gov data.
Last updated: 04 October 2004
|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|