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Studies Seek Patients: Clinical Trials Across the U.S. and Canada


Clinical trials are research studies on humans that are designed to answer specific questions about vaccines or new therapies, to test new ways of using known treatments, or to find out more about a disorder. The National Institutes of Health has developed ClinicalTrials.gov to provide current information about clinical research studies. Before proceeding, you may want to learn more about clinical trials.

On this page, we have summarized all studies sponsored by the National Institutes of Health, other federal agencies, and private industry. Studies are conducted primarily in the United States and Canada*.

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* ClinicalTrials.gov currently contains approximately 9,100 clinical studies sponsored by the National Institutes of Health, other federal agencies, and private industry. Studies listed in the database are conducted primarily in the United States and Canada, but include locations in about 90 countries.

Last updated March 6, 2014