4. Hormone therapy, also known as androgen deprivation therapy (ADT) or androgen suppression therapy, is one of the treatment options for patients with prostate cancer. Although hormone therapy plays an important role in men with advancing prostate cancer, it is increasingly being used before, during, or after local treatment as well. It is particularly used in patients whose cancer has spread too far to be cured by surgery or radiation, or when patients can’t undergo these treatments for some reason, in patients whose cancer is resistant to or returns after previous treatments, as well as in combination with or before radiation therapy to increase the probabilities of success. (Read more about hormone therapy)