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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.
Print Article: KA-03933

How do I contact ClinicalTrials.gov if I have a question about my study record?

If you have questions or need help updating your record, e-mail register@clinicaltrials.gov. If the question is about a specific study record, please provide the NCT Number or the Unique Protocol ID (if an NCT Number has not yet been assigned). Please include enough information about the issue so that we may better assist you. We generally respond to all e-mails within 1 business day.