Skip to main content is a registry of federally and privately supported clinical trials conducted in the United States and around the world. contains information about medical studies in human volunteers. Most of the records in describe clinical trials (also called interventional studies). also includes records describing observational studies and programs providing access to investigational drugs outside of clinical trial (expanded access). Studies listed in the database are conducted in all 50 US States as well as 187 other countries.

As well as the standard ontologies, the Linguamatics index includes its own domain specific ontology providing concepts specific to clinical trials e.g. Recruitment Status, Study Phase/Type/Design. Access to Linguamatics for text mining enables researchers to assess clinical trial inclusion/exclusion criteria for patient selection, trial site evaluation and study design as well as to discover competitive intelligence around companies, diseases, targets and novel drugs.

Learn how I2E users can benefit from access to

Case study: Clinical Trials at AstraZeneca.

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