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Phase II study of vinblastine, methyl-CCNU, and medroxyprogesterone in advanced renal cell cancer.

One hundred and sixty-five patients with advanced renal cell cancer were evaluable for combination or single-agent therapy with methyl-CCNU, vinblastine, and medroxyprogesterone. A low order or response was observed, and these agents were not proven effective as treatment for metastatic renal cell cancer. Performance status and a relatively long symptom-free interval from primary tumor to metastatic disease were found to be the most prognostically significant factors for survival.