ASCO 2014:对比6周期ET与8周期EC-T治疗腋窝淋巴结阳性的乳腺癌患者的疗效

2014-05-31 刘小军 译 医学论坛网

摘要号:#1042 标题:6周期ET方案VS4周期ET方案序贯4周期EC-T方案辅助治疗腋窝淋巴结阳性可手术乳腺癌的比较 第一作者:袁芃,中国医学科学院肿瘤医院 背景:了解6周期ET方案和4周期ET方案序贯4周期EC-T方案辅助治疗是否具有相似的疗效,更短的治疗时间和更低的毒副反应。 方法:本研究纳入了腋窝淋巴结阳性可手术乳腺癌患者,随机分为ET方案组

摘要号:#1042

标题:6周期ET方案VS4周期ET方案序贯4周期EC-T方案辅助治疗腋窝淋巴结阳性可手术乳腺癌的比较

第一作者:袁芃,中国医学科学院肿瘤医院

背景:了解6周期ET方案和4周期ET方案序贯4周期EC-T方案辅助治疗是否具有相似的疗效,更短的治疗时间和更低的毒副反应。

方法:本研究纳入了腋窝淋巴结阳性可手术乳腺癌患者,随机分为ET方案组:EPI/TAX 75/175 mg/m2,共6周期,每3周重复;EC-T方案组:EPI/CTX 90/600 mg/m2,共4周期,每3周重复,然后序贯单药TAX 175 mg/m2,共4周期,每2周重复。主要研究终点为DFS。本研究设计的HR的95%CI上限为1.3。为达到a=0.05的差异,设计样本量905例。按10%的脱组率计算,共需样本量为996例。DFS的首次分析预计在50%患者完成入组时进行。

结果:从2009年8月至2013年10月,496例患者被纳入到本研究中,445例患者按规定完成了治疗。EC组入组214例患者,另外231例患者纳入到EC-T组。两组患者的特征匹配良好。两组患者的中位年龄49岁。在EC-T和ET组,分别有87.4%和92.2%的患者为ER/PR阳性。中位随访时间35.5月,观察到28个临床事件(每组各14个)。EC-T和ET组4年的DFS为91.3%和91.4 (log-rank p= 0.719,HR = 0.873, 95%CI = 0.416-1.832)。两个化疗方案均耐受良好。EC-T和ET组各有92.1% 88.7%的患者完成了治疗。最常见的毒副反应为3/4级中性粒细胞减少、恶心、贫血,两组之间没有明显差异。

结论:对于腋窝淋巴结阳性的早期乳腺癌患者,6周期ET方案与8周期EC-T方案的毒副反应相似。两个化疗方案的疗效有待更多的患者入组、以及更长的观察随访时间后明确。临床试验信息:NCT01134523.

研究链接:Comparison of six cycles of epirubicin and paclitaxel (ET) versus four cycles of epirubicin and cyclophosphamide, followed by four cycles of paclitaxel (EC-T) as adjuvant therapy for operable breast cancer in women with positive axillary nodes. (Abstract 1042)


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    2014-12-24 quxin068
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    2014-06-02 sodoo
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