A randomized trial of five versus eight courses of cisplatin or carboplatin in advanced epithelial ovarian carcinoma A North Thames Ovary Group Study
1997
Summary Background: There is no clear data on the optimum number of courses of platinum chemotherapy required for treating advanced ovarian cancer. A prospective randomised trial was performed to compare five with eight courses of either carboplatin 400 mg/m2 or cisplatin 75 mg/m2 given four-weekly to patients with stage IC-IV ovarian cancer. Patients and methods: 255 patients were entered into the study and 233 were eligible for randomisation: 118 to five courses and 115 to eight courses. In each randomisation, half the patients received carboplatin and half received cisplatin. Results: The mean number of courses received on the five arm was 4.74 and on the eight arm, 6.42, an increase of 35%. The median survival for all patients was 24 months with the median survival for the 156 patients with stage 3 disease being 21 months. No difference was detected in survival (P = 0.53) or time to progresion from initial surgery (P - 0.29) between the two arms of the trial. False-negative calculations based on a multivariate analysis show that the trial currently has 95% power for excluding a difference of 10% in favour of the eight course arm at three years. Conclusion: There is insufficient evidence at the present time to justify more than five courses of first-line single agent platinum chemotherapy in the management of advanced ovarian cancer.
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