Find NCI-Supported Clinical Trials

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NCI-supported clinical trials are those sponsored or otherwise financially supported by NCI.

Search Tip: For more search options, use our advanced search.

The Clinical Trials API: Use our data to power your own clinical trial search

An application programming interface (API) helps translate large amounts of data in meaningful ways. This clinical trials search is now powered by an API to help provide better search results and for developers to use this open data.