MEDICAL RESEARCH COUNCIL STUDY ON CHEMOTHERAPY IN ADVANCED OVARIAN CANCER

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Abstract
Summary: A total of 264 eligible patients with advanced ovarian cancer were randomised to single or triple agent cytotoxic therapy; 261 were available for analysis. The treatments were continuous oral cyclophosphamide (arm S), and a combination of oral cyclophosphamide, hexamethylmelamine and methotrexate on a pulsed basis (arm T). Mortality attributed to cancer was slightly lower on arm T (p = 0.06), but this was offset by the greater toxicity of this regimen, and overall survival and activity index were similar on the two arms. There was thus little evidence of greater clinical benefit on the triple agent regimen. Tumour mass removed at operation, extent of remaining tumour and age all showed significant correlation with prognosis. Survival was longer in patients whose disease responded to either therapeutic regimen.