Overview External Beam Radiation With or Without Chemotherapy to Treat High Risk Prostate Cancer Status: Terminated Trial end date: 2014-05-01 Target enrollment: Participant gender: Summary The purpose of this study is to compare the effects on prostate cancer using radiation therapy with or without chemotherapy. Phase: Phase 2/Phase 3 Details Lead Sponsor: Proton Collaborative GroupTreatments: AndrogensAscorbic AcidDocetaxelEstrogens, Conjugated (USP)HormonesMethyltestosteroneProlactin Release-Inhibiting Factors