Radiation and Androgen Ablation for Prostate Cancer

Inclusion Criteria: * Histologically confirmed, locally confined adenocarcinoma of the prostate * Patient must fit D'Amico intermediate risk criteria by clinical stage (T2b-T2c), PSA (prostatic specific antigen) (10-20 ng/mL), and/or Gleason score (Gleason 7). * The patient has decided to undergo external beam radiation as treatment choice for his prostate cancer. * Signed study-specific consent form prior to registration Exclusion Criteria: * Stage T3-4 disease. * Gleason 8 or higher score. * PSA \> 20 ng/ml. * IPSS (International Prostate Symptom Score) \> 15 * Clinical or Pathological Lymph node involvement (N1). * Evidence of distant metastases (M1). * Radical surgery for carcinoma of the prostate. * Previous Chemotherapy, unless intervention was greater than 5 years from beginning treatment for current prostate cancer. * Previous pelvic radiation therapy. * Previous or concurrent cancers other than basal or squamous cell skin cancers or superficial bladder cancer unless disease free for at least 5 years. * History of inflammatory bowel disease. * Major medical or psychiatric illness which, in the investigator's opinion, would prevent completion of treatment and would interfere with follow up. * Myocardial infarction or cerebrovascular accident within one year from consultation, or other major vascular risk factor which would prevent a patient from receiving appropriate androgen deprivation therapy.11 * Liver function tests (LFTs) greater than twice the upper limit of …