Hormone therapy is one of the treatment option for prostate cancer, which is often used along with other treatment options like are surgery, chemotherapy, radiation therapy and others. The success rate of treatment of prostate cancer by hormone therapy, depends on several factors like type of cancer, the stage of cancer, location, age of patient, general health, associated comorbidities and others. Consult an oncologist, who on evaluation of the patient will guide you to choose the best treatment suitable for the patient. Hope our answer helps you.