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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

This is a test version of the Protocol Registration and Results System (PRS). Creating or modifying records in this system will have no effect on the production (operational) PRS or ClinicalTrials.gov.

The data on this system is occasionally replaced entirely with a copy of the latest data from the production system. [Data last copied from production PRS: Feb 4, 2016] If you had an account on the production PRS at that time, the same login information should work on this system.

WARNING: Do not use the PRS Test System to prepare data for the production PRS. This system sometimes runs a software release that is not fully compatible with that of the production system.

If you notice problems or have questions while using this test system, please contact us using the Contact ClinicalTrials.gov PRS link (in the upper right corner, after logging in).




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: 



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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