Clinical Trials Information For Cancer | National Cancer Institute

National Cancer Institute

9609 Medical Center Drive, Bethesda, MD 20892

Not Applicable.

Eligibility

There are no restrictions for this service.

Required documents

None.

Hours

Online database is available 24 hours a day, 7 days a week.
Helpline and chat available Monday - Friday: 9:00am to 9:00pm.

(800) 422-6237

Voice·

voice | 1-800-4-CANCER

Website

http://www.cancer.gov/research/participate/clinical-trials

Languages

Spanish available by phone and online.
Spanish available by online chat at www.cancer.gov/espanol/contactenos.

Application process

Call the toll-free helpline or visit the website at www.cancer.gov for more information. "LiveHelp" chat available online at https://livehelp.cancer.gov.

Fees

No fee.

Service area

United States

Maintains an online database of clinical trials now accepting participants. Also provides recently released results from cancer clinical trials.

Last Verified

04/22/2026

What's Here

Clinical Trials Information Cancer

Providing organization

National Cancer Institute

Federal agency serving as the government's principal agency for cancer research and training. Offers a hotline to provide comprehensive, accurate information on a range of cancer topics, including the most recent advances in cancer treatment. Provides smoking cessation information, smoking cessation support, and smoking prevention through a Quit Helpline, online resources at www.SmokeFree.gov, and automated text messaging.

Data provided by

211 Summit