<qa>  What was the duration of induction therapy?Participants started hormone treatment with Leuprorelin 3.75 mg once every 28 days, subcutaneously SC or intramuscularly IM. Duration of induction therapy was at least 6 months 6-9 months during which PSA and testosterone levels were measured every 3 months. When PSA decreased by greater than 90 from baseline PSA less than 10 ngml or became lower than 4.0 ngml for 2 consecutive measurements made at least 2 weeks apart the participants were included into intermittent hormone therapy regimen group IAD. Participants with PSA decrease not achieved greater than 90 or less than or equal to 4.0 ngml were given either continuous hormone therapy CAD or chemotherapy. 