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Grey Literature

Provides resources and information on how to search for "grey literature."

Why Search for Clinical Trials?

"Only 63% of results from abstracts describing randomized or controlled clinical trials are published in full. ’Positive’ results were more frequently published than not ’positive’ results."¹

Many of the resources on this page list clinical trials that are still in process. Having as much information as you can find about the positive and negative results of a trial will help you avoid bias in your research.

¹From the Plain Language Summary of: Scherer RW, Langenberg P, von Elm E. Full publication of results initially presented in abstracts. Cochrane Database of Systematic Reviews 2007, Issue 2. Art. No.: MR000005. DOI: 10.1002/14651858.MR000005.pub3.

Clinical Trials/Registered Research

There's an App for That!

Two apps let you search clinical trials using apps.  cTrials is for Android only; Clinical Trials is for iOS only.

Regulatory Data