ENZALUTAMIDE AND OVERALL SURVIVAL IN PATIENTS WITH PROSTATE CANCER AFTER CHEMOTHERAPY
Keywords:
Enzalutamide; castration-resistant prostate cancer; survival; chemotherapy; clinical efficacy.Abstract
Enzalutamide (MDV3100), an androgen receptor signaling pathway inhibitor, was investigated in an international phase III randomized trial involving 1,199 patients with castration-resistant prostate cancer after chemotherapy. Administration of enzalutamide at a dose of 160 mg/day significantly increased overall survival compared with placebo (18.4 vs. 13.6 months; HR 0.63; p<0.001) and demonstrated superiority across all secondary endpoints, including reduction in PSA levels, objective tumor response, improvement in quality of life, and prolonged time to progression. The main adverse events were fatigue, diarrhea, and hot flashes, with seizures observed in rare cases. These findings confirm the significant clinical efficacy of enzalutamide in patients with metastatic castration-resistant prostate cancer following chemotherapy.
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