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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 Clinical Trial Survey System (CTSS) landing page. CTSS is an application for patient self-reporting in association with the Clinical Trials Database (CTDB) project.

Please contact your patient care coordinator for the study brochure link. The brochure link will provide information about the study and clinical teams, any necessary visit information, frequently asked questions, and how to access and complete questionnaires.