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

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

The metaregistry provides mappings between the Bioregistry and other registries. There are 4 mappings to external registries for clinicaltrials with 1 unique external prefixes.

Registry Name Metaprefix External Prefix
BioContext biocontext CLINICALTRIALS logo miriam clinicaltrials
Name-to-Thing Name-to-Thing logo n2t clinicaltrials
Prefix Commons prefixcommons clinicaltrials

Providers are various services that resolve CURIEs to URLs. The example CURIE clinicaltrials:NCT00222573 is used to demonstrate the provides available for clinicaltrials. Generation of OLS and BioPortal URLs requires additional programmatic logic beyond string formatting.

Name Metaprefix URI clinicaltrials
Bioregistry bioregistry miriam
Name-to-Thing n2t
None smartpatients
Extra Providers

Additional providers curated in the Bioregistry are listed here.

Code Name URL
smartpatients Smart Patients