Multicenter phase II-III study of oxaliplatin plus cyclophosphamide vs. cisplatin plus cyclophosphamide in chemonaive advanced ovarian cancer patients
2001
iyCAC. Kremlm-Bicelre, France, uInstituto Nacionai de Enjermedades Neoplasicas. Lima. Peru Summary Purpose: A phase 11—III randomised study to compare safety and efficacy of an oxaliplatin/cyclophosphamide (OXAC) combination, vs. the reference combination of cisplatin/cyc lophosphamide (CPC), in untreated advanced ovarian cancer patients. Patients and methods: 182 patients were enrolled, of whom 177 were treated; 86 with OXAC (130 mg/nr oxaliplatin twohour intravenous (i.v.) infusion, 1000 mg/m2 cyclophosphamide two-hour i.v. infusion), and 91 with CPC (100 mg/m2 cisplatin one-hour i.v. infusion, 1000 mg/m2 cyclophosphamide two-hour i.v. infusion). Treatment cycles were repeated every three weeks (maximum of six cycles). Results: The main toxicities, which were significantly less severe in the OXAC arm, were myelosuppression and vomiting, including (OXAC vs CPC, % patients): grade 3-4 leukopenia (37% vs. 56%), and anaemia (7% vs. 32%), with blood transfusions in 8% vs. 21%. In the OXAC arm. 64% of surgically assessable patients and 33% of clinically assessable patients achieved an objective response. In the CPC arm. 67% patients achieved a surgical response and 42% achieved an objective clinical response. In the OXAC and CPC arms, median progression free-survival was 13.0 and 13.3 months, and overall survival was 36.0 and 25.1 months respectively, without statistically significant difference. Conclusion: The activity and time-related parameters of the OXAC and CPC combinations in advanced ovarian cancer patients, are comparable. Combined with the better safety profile of the oxaliplatin-containing regimen, this confirms the interest of oxaliplatin combined with active new agents in this indication.
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