JCO:HER2阳性乳腺癌患者新辅助化疗联合曲妥珠单抗或拉帕替尼治疗后生存分析

2018-03-16 MedSci MedSci原创

GeparQuinto Ⅲ期临床试验发现与曲妥珠单抗相比,拉帕替尼联合标准蒽环类-紫衫类化疗治疗HER2阳性乳腺癌病理完全缓解(pCR;pT0 ypN0)率更低。JCO近期发表了一篇文章,报道了长期随访结果。

GeparQuinto Ⅲ期临床试验发现与曲妥珠单抗相比,拉帕替尼联合标准蒽环类-紫衫类化疗治疗HER2阳性乳腺癌病理完全缓解(pCR;pT0 ypN0)率更低。JCO近期发表了一篇文章,报道了长期随访结果。

HER2阳性乳腺癌患者接受表柔比星(E)联合环磷酰胺(C)新辅助治疗,序贯多西他赛(T)联合拉帕替尼(L)或曲妥珠单抗(H;ECH-TH组:n=307,ECL-TL组:n=308)。ECH-TH组患者接受辅助曲妥珠单抗治疗12个月,ECL-TL组接受辅助曲妥珠单抗治疗18个月。中位随访时间55个月。研究结果表明,两组间三年无病生存(DFS),长期无病生存(DDFS)和总生存(OS)并无显着差别。长期临床结局与pCR相关。仅在接受曲妥珠单抗治疗达到pCR的患者中发现了总生存获益,在拉帕替尼组并未发现达到pCR和未达到pCR的患者之间存在差异。按激素受体状态分层后,两组间DFS和DDFS均未改变,而接受新辅助拉帕替尼治疗序贯辅助曲妥珠单抗治疗的激素受体阳性患者总生存更为良好。激素受体阴性的患者并未发现差异。在激素受体阴性队列中,pCR与DFS,DDFS和OS显着相关。

文章最后认为,pCR与长期临床结局有关。激素受体阳性的肿瘤患者,延长抗HER2治疗-新辅助拉帕替尼6个月,序贯辅助曲妥珠单抗12个月-与仅使用曲妥珠单抗进行抗HER2治疗相比可以显着改善患者预后。

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    2018-12-18 lidong40
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