Treatment of Advanced Prostatic Cancer with Buserelin, an Analogue of Gonadotrophin Releasing Hormone

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Abstract
Twenty-two consecutive patients with newly diagnosed symptomatic, locally advanced or metastatic prostate cancer were treated with intranasal buserelin, a long-acting analogue of gonadotrophin releasing hormone, in divided dosages of between 600 and 1000 micrograms daily. Suppression of testosterone occurred in 1 of 5 patients treated with 600 micrograms daily and in all 17 patients receiving 1000 micrograms daily. Two of 5 patients treated with the 600 micrograms regimen and 16 of 17 patients receiving the 1000 micrograms regimen showed subjective and objective evidence of disease regression. Follow-up was from 1 to 16 months (mean 7.1 months); 6 patients have relapsed during this period. Buserelin offers an effective alternative medical treatment of carcinoma of the prostate and, apart from impotence, does not have the side effects of oestrogens.