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A phase 1b/2, open-label, dose-escalation, and dose-confirmation study of eribulin mesilate in combination with capecitabine.
British Journal of Cancer ( IF 6.4 ) Pub Date : 2019-02-20 , DOI: 10.1038/s41416-018-0366-5
Chris Twelves 1 , Alan Anthoney 1 , Claudio I Savulsky 2 , Matthew Guo 3 , Larisa Reyderman 4 , Nicola Cresti 5 , Vladimir Semiglazov 6 , Constanta Timcheva 7 , Ishtiaq Zubairi 8 , Rosemary Morrison 9 , Ruth Plummer 5 , T R Jeffry Evans 9, 10
Affiliation  

BACKGROUND Capecitabine and eribulin are widely used as single agents in metastatic breast cancer (MBC) and have nonoverlapping toxicities. METHODS In phase 1b (dose escalation), patients with advanced, treatment-refractory, solid tumours received eribulin mesilate intravenously in 21-day cycles according to schedule 1 (day 1) or schedule 2 (days 1, 8) with twice-daily oral capecitabine (1000 mg/m2 days 1-14). In phase 2 (dose confirmation), women with advanced/MBC and ≤3 prior chemotherapies received eribulin mesilate at the maximum tolerated dose (MTD) per the preferred schedule plus capecitabine. Primary objectives were MTD and dose-limiting toxicities (DLTs; phase 1b) and objective response rate (ORR; phase 2). Secondary objectives included progression-free survival (PFS), safety, and pharmacokinetics. RESULTS DLTs occurred in 4/19 patients (schedule 1) and 2/15 patients (schedule 2). Eribulin pharmacokinetics were dose proportional, irrespective of schedule or capecitabine coadministration. The MTD of eribulin was 1.6 mg/m2 day 1 for schedule 1 and 1.4 mg/m2 days 1 and 8 for schedule 2. ORR in phase 2 (eribulin 1.4 mg/m2 days 1, 8 plus capecitabine) was 43% and median PFS 7.2 months. The most common treatment-related adverse events were neutropenia, leukopenia, alopecia, nausea, and lethargy. CONCLUSIONS The combination of capecitabine and eribulin showed promising efficacy with manageable tolerability in patients with MBC.

中文翻译:


甲磺酸艾日布林联合卡培他滨的 1b/2 期、开放标签、剂量递增和剂量确认研究。



背景卡培他滨和艾日布林作为单一药物广泛用于转移性乳腺癌(MBC)并且具有非重叠毒性。方法 在 1b 期(剂量递增)中,晚期难治性实体瘤患者根据方案 1(第 1 天)或方案 2(第 1、8 天)以 21 天为一个周期,静脉注射甲磺酸艾日布林,每日两次口服卡培他滨(1000 mg/m2,第 1-14 天)。在第 2 阶段(剂量确认)中,患有晚期/MBC 且既往化疗次数≤3 次的女性按照首选方案接受最大耐受剂量 (MTD) 的甲磺酸艾日布林加卡培他滨。主要目标是 MTD 和剂量限制毒性(DLT;1b 期)和客观缓解率(ORR;2 期)。次要目标包括无进展生存期 (PFS)、安全性和药代动力学。结果 4/19 名患者(附表 1)和 2/15 名患者(附表 2)发生 DLT。艾日布林药代动力学与剂量成正比,与给药方案或卡培他滨联合给药无关。方案 1 的艾日布林的 MTD 为第 1 天 1.6 mg/m2,方案 2 的第 1 天和第 8 天为 1.4 mg/m2。第 2 期(艾日布林 1.4 mg/m2 第 1、8 天加卡培他滨)的 ORR 为 43%,中位 PFS 7.2个月。最常见的治疗相关不良事件是中性粒细胞减少、白细胞减少、脱发、恶心和嗜睡。结论 卡培他滨和艾日布林联合治疗 MBC 患者显示出良好的疗效和可控的耐受性。
更新日期:2019-02-20
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