EUR J Cancer:一项比较SB3(曲妥珠单抗生物类似物)和曲妥珠单抗的III期临床研究

2018-02-26 MedSci MedSci原创

在早期或局部晚期人表皮生长因子受体2阳性乳腺癌患者的治疗中,研究人员对比了SB3(曲妥珠单抗生物类似物)和曲妥珠单抗的在最终安全性,免疫原性和生存结果等方面的差异。

在早期或局部晚期人表皮生长因子受体2阳性乳腺癌患者的治疗中,研究人员对比了SB3(曲妥珠单抗生物类似物)和曲妥珠单抗的在最终安全性,免疫原性和生存结果等方面的差异。

患者被随机平均分配为两组,分别接受SB3或曲妥珠单抗治疗 8个周期,同时进行化疗(4个周期的多西他赛,然后4个周期的5-氟尿嘧啶/ epirubicin /环磷酰胺)。在随机分配的875例患者中,764例(SB3n = 380;曲妥珠单抗,n = 384)完成了研究。中位随访时间分别为437天(SB3组)和438天(曲妥珠单抗组)。在整个研究期间,各组间治疗出现不良事件的发生率相当(SB397.5%;曲妥珠单抗,96.1%)。在研究结束时,两个治疗组的抗药物抗体总发生率较低。12个月时的无事件存活率(EFS)率为93.7%SB3)和93.4%(曲妥珠单抗)。风险比(SB3 / 曲妥珠单抗)为0.9495%的置信区间为0.59-1.51)。 

原始出处:

Pivot, X., et al. "A phase III study comparing SB3 (a proposed trastuzumab biosimilar) and trastuzumab reference product in HER2-positive early breast cancer treated with neoadjuvant-adjuvant treatment: Final safety, immunogenicity and survival results." European Journal of Cancer 2018 93: 19-27. doi.org/10.1016/j.ejca.

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    2019-01-26 juliusluan78
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HER2扩增或过表达(IHC3+)侵袭性乳腺癌辅助性曲妥珠单抗治疗能减少复发并改善生存,NSABP B-31和N9831的回顾性研究认为HER2低表达乳腺癌也可能获益于曲妥珠单抗辅助治疗。事实究竟如何呢?NSABP B-47研究结果证实IHC1+/2+或FISH比率<2.0乳腺癌,标准辅助治疗中加入曲妥珠单抗无获益。

J Clin Oncol:拉帕替尼+曲妥珠单抗单抗+AI治疗HR+HER2+转移性乳腺癌

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