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Gynecologic oncology

A phase II trial of paclitaxel, carboplatin, and bevacizumab in advanced and recurrent endometrial carcinoma (EMCA).


PMID 25485782

Abstract

To evaluate the effect of adding bevacizumab to adjuvant paclitaxel and carboplatin and as maintenance on progression-free survival (PFS) in advanced or recurrent endometrial carcinoma (EMCA). A phase II trial was conducted in patients with measurable disease. Paclitaxel (175mg/m(2)/3h), carboplatin (AUC 5) and bevacizumab (15mg/kg) were administered q 21 days. Patients with a complete response after 6-8cycles received maintenance therapy with bevacizumab 15mg/kg q 21 days for 16cycles. Based on GOG 177 which had a 6-month PFS rate of 59%, an increase in 6-month PFS to 72% with the treatment regimen was considered of clinical interest. 15 patients were enrolled on protocol when accrual to the study was discontinued due to the initiation of a national randomized phase II trial. A total of 127 courses (median 8, range 1-20) of carboplatin, paclitaxel, and bevacizumab combination therapy were administered. One patient suffered a bowel perforation after her first course of therapy and was inevaluable for response. Fourteen of the 15 patients (93%, 95% CI: 82-100) were progression free at 6months. The median follow-up was 36months (7-58+). The median PFS was 18months (CI: 11-25). Five complete responses and 6 partial responses were seen for an overall response rate of 73% (CI: 45-91). The median overall survival was 58months (CI: 48-68). The bevacizumab, paclitaxel, and carboplatin regimen is active and tolerable in advanced and recurrent EMCA. Its impact awaits results of the recently completed randomized phase II trial.