CRIR has now an account with is a free resource provided by the U.S. National Library of Medicine. It is a web-based data entry system allowing the registration of clinical trials.

For researchers, it permits searching the database to stay up to date on developments in their field, to find collaborators, and identify unmet needs. Increasingly, scientific journals will only accept to publish clinical trials that have been registered before initiation of participant recruitment.

For more information, see the Tools section