ASCO 2020:PD-1单抗Keytruda在三阴性乳腺癌中脱颖而出

2020-05-16 MedSci原创 MedSci原创

默克的明星PD-1单抗Keytruda在转移性三阴性乳腺癌患者的一线治疗中显示出令人鼓舞的结果,使其很可能与罗氏的PD-L1单抗Tecentriq竞争。

默克在ASCO 2020年会议上披露的关键3期数据表明,PD-1单抗Keytruda(pembrolizumab)联合化学疗法可将高表达PD-L1、先前未经治疗的转移性三阴性乳腺癌(TNBC)患者的死亡风险降低35%。

Keytruda联合化疗还改善了患者的无进展生存期(PFS),中位时间为9.7个月,而接受单纯化疗的患者为5.6个月。

对于肿瘤表达较低水平的PD-L1的患者,Keytruda加化疗方案与单纯化疗相比也可改善PFS,但结果未达到统计学意义。

罗氏的PD-L1单抗Tecentriq(atezolizumab)是TNBC市场上无可争议的领导者,去年3月获批成为该疾病的首个免疫疗法。到现在为止,罗氏(Roche)基本上已经占据了TNBC市场,这家瑞士制药公司估计,该适应症可能为Tecentriq带来高达10亿美元的收入。

原始出处:

http://www.pmlive.com/pharma_news/mercks_keytruda_hits_the_mark_in_triple_negative_breast_cancer_1340336

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    2020-09-27 quxin068
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    2020-05-18 xlysu

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