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Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at OPM.gov.

Transforming the understanding
and treatment of mental illnesses.

What You Need to Know About ClinicalTrials.gov Registration and Results Reporting

In order to register a clinical trial in the National Library of Medicine’s (NLM) ClinicalTrials.gov registry, you or your designee will need to have a Protocol Registration System (PRS) individual or organization account. This account will allow you to create and update your clinical trials records as necessary. More details are available on the PRS website .

For more information about Clinicaltrials.gov registration and results submission, see Frequently Asked Questions about Clinicaltrials.gov Registration and Results Submission for NIMH-funded Clinical Trials.