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Lancet:Atezolizumab可作为晚期尿路上皮癌顺铂的替代治疗

2016-12-08 xing.T MedSci原创

Atezolizumab显示出令人鼓舞的持久应答率、生存期和耐受性,支持其在未经治疗的转移性尿路上皮癌患者的治疗应用。

不宜用顺铂治疗的局部晚期和转移性尿路上皮癌患者的一线化疗往往反应时间较短、治疗预后较差,并且有高毒性。这项研究评估了Atezolizumab(抗程序性死亡受体配体1[PD-L1])对不宜用顺铂治疗的转移性尿路上皮癌患者的治疗疗效。

在这个单队列、多中心的2期研究中,在北美洲和欧洲七个国家的47个教学医疗中心和社区肿瘤学实践中心进行,研究人员招募了以前未经治疗的局部晚期或转移性尿路上皮癌患者,并且这些患者不宜用顺铂治疗。患者给予1200(mg)Atezolizumab静脉滴注,每21天一次,直至疾病进展。主要终点为根据实体瘤疗效评价标准1.1版(主要综述)独立证实的客观缓解率,并对根据PD-L1表达预先设定的亚组的及所有患者进行评估。接受一个或多个剂量Atezolizumab的所有参与者被纳入主要和安全性分析。这项研究在ClinicalTrials.gov进行了登记,编号为NCT02108652。

在2014年6月9日至2015年3月30日之间,研究人员纳入了123例患者,其中119接受一个或多个剂量Atezolizumab治疗。在17.2个月的中位数随访时间,客观反应率为23%(95%可信区间为16至31%),完全缓解率为9%(n=11),有反应的27个中的19个正在进行随访,未达到中位数反应时间的反应发生在所有PD-L1和不良预后因素组。中位无进展生存期为2.7个月(2.1至4.2),中位总生存期为15.9个月(10.4至未估计)。肿瘤突变负荷与应答相关,超过10%的患者治疗相关的不良事件,主要为疲劳(36例[30%]患者)、腹泻(14例[12%]患者)和瘙痒(13例[11%]患者),1例发生治疗相关的死亡(败血症),9例(8%)患者因不良事件而导致治疗停药,14例(12%)患者出现免疫介导的事件。

由此可见,Atezolizumab显示出令人鼓舞的持久应答率、生存期和耐受性,支持其在未经治疗的转移性尿路上皮癌患者的治疗应用。


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    2017-10-02 snf701207
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    2017-01-18 howi
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    2016-12-09 cqykthl

    期待后期研究

    0

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