The study investigated the efficacy and safety of two different degarelix monthly dosing regimens with a starting dose of 240 mg (40 mg/ ml) followed by monthly doses subcutaneous administration of 160 mg (40 mg/ ml) or 80 mg (20 mg/ ml), in comparison to monthly intramuscular administration of 7.5 mg leuprorelin in patients with prostate cancer requiring androgen deprivation therapy.