provides free access to information on clinical studies for a wide range of diseases and conditions. Studies listed in the database are conducted in 175 countries

Alternative Prefixes
NCT ctgov clinicaltrial
disease drug human
Missing Contact
Pattern for Local Unique Identifiers

Local identifiers in should match this regular expression:

Example Local Unique Identifier
NCT00222573   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from should match this regular expression:

Example CURIE

A summary of the relations in the Bioregistry schema can be found here.

In Collection
FHIR External Terminologies Clinical Trial Registries

The metaregistry provides mappings between the Bioregistry and other registries. There are 5 mappings to external registries for this resource with 2 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
BioContext biocontext CLINICALTRIALS logo miriam clinicaltrials
N2T Name-to-Thing logo n2t clinicaltrials
Prefix Commons Prefix Commons logo prefixcommons clinicaltrials
Wikidata Wikidata Property logo wikidata P3098

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier NCT00222573 is used to demonstrate the providers available for A guide for curating additional providers can be found here.

Name Metaprefix URI clinicaltrials
Bioregistry bioregistry miriam
Name-to-Thing n2t
Extra Providers

Additional providers curated in the Bioregistry are listed here. These are typically inherited from or Prefix Commons, and need extra curation.

Code Name URL
bio2rdf Bio2RDF
smartpatients Smart Patients