High Risk Prostate Cancer Prevention Study

The purpose of this study is to study the molecular effects of the chemopreventative agent, finasteride, in combination with dietary soy supplementation in patients at high risk for the development of prostate cancer. Also, the investigators intend to create a large database with health information from men who are at high risk of developing prostate cancer, along with serum and tissue samples from those patients who are willing to provide tissue and serum samples.