Ann Oncol:HER-2无扩增早期乳腺癌患者,曲妥珠单抗能减少转移复发风险?

2018-09-25 吴星 环球医学

2018年8月,发表在《Ann Oncol》的一项由比利时、德国、法国学者进行的研究,考察了曲妥珠单抗vs 观察能否减少HER-2无扩增早期乳腺癌患者的转移复发风险。

2018年8月,发表在《Ann Oncol》的一项由比利时、德国、法国学者进行的研究,考察了曲妥珠单抗vs 观察能否减少HER-2无扩增早期乳腺癌患者的转移复发风险。

背景:曲妥珠单抗可改善HER2阳性乳腺癌女性的结局。研究者旨在评价曲妥珠单抗能否降低高风险HER2无扩增早期乳腺癌女性的循环肿瘤细胞(CTCs)的检出率。

受试者和方法:EORTC 90091-10093 BIG 1–12 Treat CTC是一项II期试验,在5个欧洲国家的70个医院和6个CTC实验室开展。集中证实患有HER-2非扩增乳腺癌,且手术和新辅助化疗后,根据CellSearch?集中证实每15?ml血液中含有≥1个CTC的患者被随机分配(1 : 1)至6个周期的静脉曲妥珠单抗vs18周观察。根据中心、局部确认的雌激素受体状态,以及辅助vs新辅助化疗。主要终点为18周每15?ml血液中CTC的检出率≥1。次要终点是侵入性无病生存期(iDFS)和心脏安全。

结果:2013年4月30日至2016年10月17日,筛选出1317例患者;95例(7.2%)携带可检测出的CTC(s),63例(4.8%)被随机分配至曲妥珠单抗(31例)或观察组(32例)。58例患者的终点可以评价,每组29例。在这58例患者中,在18周时仍然可以从9例患者中检测到CTC(s),其中,曲妥珠单抗组5例,观察组4例(单侧Fisher精确检验,P=0.765)。独立数据监测委员会建议防止终点无益的权责进一步发生。数据锁定的中位随访时间为13个月(IQR 4~16.5)。观察组的1年iDFS为93.8%(95%置信区间[CI],77.3~98.4)vs曲妥珠单抗组的1年iDFS为84.8%(95% CI,63.4~94.2)。未在曲妥珠单抗组观察到2~4级心脏事件。

结论:曲妥珠单抗没有降低HER2无扩增非转移乳腺癌中的CTCs检出率。

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    2019-04-09 minlingfeng
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    2018-09-27 zhu_jun9840
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