A Phase III Trial of Zoladex and Flutamide Versus Orchiectomy in the Treatment of Patients With Advanced Carcinoma of the Prostate

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Abstract
In a multicenter Phase III trial 264 patients with advanced prostatic cancer were randomized to either bilateral orchiectomy or treatment with zoladex supplemented by flutamide. Presently, median follow-up time is 30 months. A small difference in objective response was recorded in favor of the combination therapy, whereas no statistically significant difference was found in subjective response to therapy, time to progression, and overall survival. Adverse effects were more commonly encountered in the pharmacologically treated patients. It is concluded that the combination of zoladex plus flutamide is not clinically superior to orchiectomy in the treatment of patients with advanced carcinoma of the prostate.