To find out more about National Cancer Institute (NCI) clinical trials conducted at the National Institutes of Health (NIH) Clinical Center in Bethesda, Maryland, call the Clinical Trials Referral Office at 1-888-NCI-1937 (1-888-624-1937) Monday through Friday, 9:00 a.m. to 5:00 p.m. Eastern Time, or contact us by e-mail at ncicssc@mail.nih.gov.
The direct dial telephone number for the Clinical Trials Referral Office is 301-496-4000. If you are calling from outside the United States, the international dialing code from most countries is 00-1-301-496-4000. If this number does not work from your country please contact your local telephone service provider.
E-mail sent to Clinical Trials Referral Office may be forwarded to other appropriate NCI or NIH staff for a response. Please be advised that e-mail is not necessarily secure against interception. If your communication contains sensitive or personal information, you are encouraged to contact us by phone via our toll-free number.
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