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Lancet:HERA 研究 11 年随访:曲妥珠单抗可提高 Her2 阳性乳腺癌生存

2017-03-21 高小羊 肿瘤时间

曲妥珠单抗可显着提高 HER-2 阳性乳腺癌患者的总生存期(OS)和无病生存期(DFS),但目前尚无相关长期随访数据。

曲妥珠单抗可显着提高 HER-2 阳性乳腺癌患者的总生存期(OS)和无病生存期(DFS),但目前尚无相关长期随访数据。

爱丁堡大学癌症中心的 Cameron 教授近期发表于 The Lancet 的研究公布了对曲妥珠单抗辅助治疗(HERA)患者 11 年的随访结果。

HERA 试验共纳入 5102 例 HER-2 阳性、左室射血分数 ≥ 55% 的乳腺癌患者。患者在接受初始治疗(包括手术、化疗及放疗)后,被随机分为 1 年组、2 年组及观察组。

1 年组:曲妥珠单抗 8 mg/kg iv once→6 mg/kg iv q3w,维持 1 年

2 年组:曲妥珠单抗 8 mg/kg iv once→6 mg/kg iv q3w,维持 2 年

主要研究终点为 DFS,次要终点为 OS、首次复发部位、心脏事件、激素受体阳性乳腺癌的疗效分析。结果如下



结果表明,1 年组较观察组显着降低了 DFS 的风险事件(HR 0.76)及死亡率(HR 0.74)。2 年组较 1 年组并未提高 DFS(HR 1.02)。

激素受体状态亚组分析:激素受体状态对曲妥珠单抗疗效无显着影响

激素受体状态是乳腺癌预后的重要决定因素,激素受体阴性的患者更易复发或死亡。

HERA 试验中, 2370 例接受了内分泌治疗的激素受体阳性患者中,1 年组对观察组的 HR 为 0.8,10 年 DFS 绝对获益率为 5.6%;激素受体阴性的患者10 年 DFS 较低。激素受体阳性与阴性患者早期(<24 个月)DFS 的 HR 分别为 0.63、0.59,后期(≥ 24 个月)HR 分别为 0.98、0.91。



按淋巴结状态进行亚组分析:腋窝淋巴结转移数更多者 DFS 更差

1 年组中,淋巴结转移阴性患者的 DFS 为 80%,淋巴结数为 1~3 个的患者为 75%,淋巴结数 ≥ 4 个者则为 55%。1 年组对观察组中,淋巴结阴性、1~3 个淋巴结、≥ 4 个淋巴结的患者的 HR 分别为 0.78、0.72、0.71。

小结:HER-2 阳性的早期乳腺癌化疗后,曲妥珠单抗辅助使用 1 年较观察组可显着提高 DFS,辅助用药 2 年无额外获益。

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    2017-04-15 howi
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    2017-03-22 tofsw

    有望提高乳腺癌预后

    0

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    2017-03-21 cqykthl

    1年靶向治疗仍是标准。

    0

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