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FAQ: Clinical Trial Results

Trial results are not always publicly available, even after a clinical trial ends. Sometimes, a trial ends before completion, and/or researchers may never publish results. The company that makes the product or sponsored the trial may be the only source of information.

Some sources for finding published trial results are:

  • MEDLINE®/PubMed®
    • Search for the name of the study or study number by combining ([si] OR clinical trial[pt]) with the named disease, condition, or therapy in your search. The first part of the search strategy retrieves references from the databases. The second part of the search strategy retrieves MEDLINE references identified as reporting on clinical trials.
    • Search for the name of the study's principal investigator or collaborators: (disease AND last name [ir]).
    • MEDLINE/PubMed has journal article citations and abstracts. Some links to free full-text articles are available. Speak to a local librarian about getting full-text articles if you see no links.
  • NIH may write about a trial’s results as a Clinical Alert, an Advisory, or in the NIH News.

For more information about clinical trials and results, see the following resources:

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