The Prostate Cancer Prevention Trial
(Updated: 06/24/2003) - A collection of material about a study designed to see whether the drug finasteride (trade name Proscar) can prevent prostate cancer in men ages 55 and older.
The SELECT Prostate Cancer Prevention Trial
(Updated: 08/03/2004) - A collection of material about SELECT (Selenium and Vitamin E Cancer Prevention Trial), which will determine whether these two dietary supplements can protect against prostate cancer.
Study of Tamoxifen and Raloxifene (STAR) Trial
(Updated: 08/09/2004) - A collection of material about the Study of Tamoxifen and Raloxifene, or STAR trial, one of the largest breast cancer prevention studies ever.
Chemoprevention
A fact sheet about NCI's research efforts to find substances that prevent cancer or reduce the risk of cancer recurrence after treatment.