吉西他滨联合长春瑞滨用于乳腺癌二线新辅助化疗的观察

  • 摘要: 目的:评价GN方案(吉西他滨联合长春瑞滨)作为二线新辅助化学治疗方案,用于治疗TAC方案(多西他赛、阿霉素和环磷酰胺)化学治疗耐药的局部晚期乳腺癌(LABC)的疗效和安全性。方法:26例经2~4周期TAC方案化学治疗反应不佳的LABC患者,采用GN方案治疗;吉西他滨1 000 mg/ m2静脉滴注,第1、8日;长春瑞滨25 mg/ m2静脉滴注,第1、8日。每21日为1周期, 2周期后评定疗效,同时记录不良事件。病情稳定或进展的患者停止化学治疗,缓解的患者继续行化学治疗至最多6周期,所有患者化学治疗结束2周后行手术切除。结果:26例患者共完成83周期化疗,平均3.2周期。其中完全缓解2例(8%),部分缓解10例(38%),病情稳定9例(35%),进展4例(15%),其中1例(4%)患者获得病理完全缓解。总反应率46%(12/26)。4例(15%)患者成功实施保乳手术,无1例患者需植皮。主要毒副反应为Ⅰ~Ⅱ度骨髓抑制、胃肠道反应、黏膜炎和周围神经毒性。结论:GN方案可作为二线新辅助化疗方案,用于蒽环类和紫杉类耐药的LABC患者,临床反应率较好,耐受性尚可。

     

    Abstract: Objective:To study the efficiency and toxicity on the neoadjuvant second- line vinorelbine and gemcitabine(GN) in the treatment of locally advanced breast cancer (LABC) resistant to anthracyclines and taxanes-containing regimen. Methods:Twenty-six LABC patients who failed to achieve response to 2-4 cycles of acombination of docetaxel, doxorubicin, and cyclophosphamide (TAC) were enrolled. Vinorelbine and gemcitabine were given at a dose of 25mg /m2 and 1000mg / m2 by intravenous injection at day 1, 8 respectively, repeated every 21 days. Response was assessed every two cycles. Stable and progressed patients were operated upon while responding cases continue. All patients received 2-6 cycles of chemotherapy, then underwent adequate surgery 2 weeks later. Results Among these 26 patients, the Clinical response rate was 46.% with 2 CR, 10 PR. Breast conservative surgery (BCS) became possible in 4 cases (15%).The most common toxicities were neutropenia, thrombocytopenia, nausea, vomiting , mucositis and neuropathy. Conclusion:Vinorelbine and gemcitabine(GN) combination can be used as second-line neoadjuvant chemotherapy in LABC patients who resistant to anthracyclines and taxanes-containing regimen. Clinical responses was effective and toxicities were tolerable.

     

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