Abstract
The usefulness of estramustine phosphate (ECT) for preventing flare-up in goserelin acetate depot therapy for advanced prostate cancer was studied. Pretreatment with ECT 560 mg daily for 3 weeks almost completely prevented the rise in testosterone level seen in goserelin acetate depot therapy and no signs or symptoms of tumor flare were observed. Long-term ECT completely blocked the rise in luteinizing hormone and testosterone level, but ECT at this dosage was likely to cause complications. The administration of ECT 560 mg daily for 3 weeks prior to goserelin acetate depot therapy was considered sufficient to prevent tumor flare, and its effect was considered to be more marked than that of short-term treatment with antiandrogens.
Published Version
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