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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.
Welcome to the ClinicalTrials.gov Protocol Registration and Results System (PRS).
OMB NO: 0925-0586
EXPIRATION DATE: 03/31/2026
Burden Statement


NOTICE
The Modernized PRS is now the primary website for Protocol Registration and submission of Study Documents and Results. After logging in, you will be directed to the new website. The Classic PRS remains available for users who need to access features that have not yet been migrated to the Modernized PRS.
Organization: 
One-word organization name assigned by PRS (sent via email when account was created)
Username: 
Password:  Forgot password



See How to Apply on ClinicalTrials.gov for information on how to apply for a PRS account.

See PRS Guided Tutorials for assistance with entering registration and results information in the PRS.

Send email to ClinicalTrials.gov PRS Administration.




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