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Clinical Trials

Information about actively enrolling, ongoing, and completed clinical trials of cancer prevention, early detection, and supportive care, including phase I, II, and III agent and action trials and clinical trials management.

Active and Enrolling Trials
NCI-funded current prevention, screening, early detection, and supportive care trials actively seeking participants are listed here.

Closed or Completed Trials
NCI clinical trials in prevention, screening, and early detection that are closed to new participants or are completed are found here, including the Study of Tamoxifen and Raloxifene (STAR),theSelenium and Vitamin E Cancer Prevention Trial (SELECT), the Prostate Cancer Prevention Trial (PCPT), the National Lung Screening Trial (NLST), and the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial (PLCO).

Clinical Trials Management
Information for researchers about developing, reporting, and managing NCI-funded cancer prevention clinical trials.