The mission of the Clinical Trials Registry-India (CTRI) is to ensure that all clinical trials conducted in India are prospectively registered, i.e. before the enrolment of the first participant. Additionally, post-marketing surveillance studies, BA/BE studies as well as clinical studies as part of PG thesis are also expected to be registered in the CTRI. (from homepage)

Note that the identifier in this semantic space is not the one used in the webpages

Prefix
ctri
Links
Homepage
Contact
Missing Contact
Pattern for Local Unique Identifiers

Local identifiers in India Clinical Trials Registry should match this regular expression:
^CTRI/\d{4}/\d{2,3}/\d+$

Example Local Unique Identifier
CTRI/2023/04/052053   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from India Clinical Trials Registry should match this regular expression:
^ctri:CTRI/\d{4}/\d{2,3}/\d+$

Example CURIE
ctri:CTRI/2023/04/052053
References
Other https://www.ctri.nic.in/Clinicaltrials/pmaindet2.php?trialid=82487
Contributors
Ontology

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

In Collection
Clinical Trial Registries
Providers

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 CTRI/2023/04/052053 is used to demonstrate the providers available for India Clinical Trials Registry. A guide for curating additional providers can be found here.

Name Metaprefix URI
India Clinical Trials Registry ctri https://trialsearch.who.int/Trial2.aspx?TrialID=CTRI/2023/04/052053
Bioregistry bioregistry https://bioregistry.io/ctri:CTRI/2023/04/052053