A Prostate Cancer Study in Men Undergoing Androgen Deprivation Therapy

This study is being conducted to compare the effect of an investigational drug versus placebo on bone loss in men with prostate cancer who are receiving Androgen Deprivation Therapy (ADT). The study drug or placebo will be administered every three months of four treatments in one year. In order to participate, male patients 18 years and older must be consecutive veterans from participating Veterans Administration Medical Centers.