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Total androgen blockade with castration and antiandrogens has become the primary therapy in metastatic prostate carcinoma. Several reports have been published on the flutamide withdrawal syndrome with a favorable response in patients with progression of disease after lengthy remission while taking combined hormone therapy. The experience with withdrawal of the experimental nonsteroidal antiandrogen casodex * in 3 patients is reported. All patients received casodex monotherapy initially, then luteinizing hormone-releasing hormone analogues were added on progression of disease (bone scan and prostate specific antigen (PSA)) and eventually casodex was withdrawn on further progression of disease (PSA and bone scan).

Total androgen blockade with castration and antiandrogens has become the primary therapy in metastatic prostate carcinoma. Several reports have been published on the flutamide withdrawal syndrome with a favorable response in patients with progression of disease after lengthy remission while taking combined hormone therapy. The experience with withdrawal of the experimental nonsteroidal antiandrogen casodex * in 3 patients is reported. All patients received casodex monotherapy initially, then luteinizing hormone-releasing hormone analogues were added on progression of disease (bone scan and prostate specific antigen (PSA)) and eventually casodex was withdrawn on further progression of disease (PSA and bone scan).