Chemohormone therapy of metastatic melanoma with megestrol acetate plus dacarbazine, carmustine, and cisplatin.
BACKGROUND: Chemotherapy with dacarbazine, carmustine, and cisplatin produces a modest objective response rate in melanoma. Megestrol acetate may ameliorate cachexia, abrogate drug resistance, and increase survival time in melanoma. METHODS: Nineteen patients with metastatic melanoma (16 evaluable) treated with dacarbazine (220 mg/m2/day for 3 days, intravenously [IV]), cisplatin (25 mg/m2/day for 3 days IV) every 3 weeks, and carmustine (150 mg/m2 IV single dose every 6 weeks) together with megestrol acetate (160 mg/day by mouth continuously) starting 2 days before chemotherapy. RESULTS: This regimen was well tolerated and resulted in a mean net weight gain of 1.45 kg. A 47% objective response rate was observed in all patients, including visceral sites of response, with a 39+ week median duration of response and median survival time of 16.7+ months in all evaluable patients. CONCLUSIONS: In this small Phase II study, the authors showed that megestrol acetate may contribute to a high objective response rate and prolonged median survival when used with a chemotherapy regimen of dacarbazine, carmustine, and cisplatin.