J Clin Oncol:Atezolizumab和Bevacizumab治疗转移肾细胞肿瘤多中心二期研究结果分析

2019-12-07 AlexYang MedSci原创

最近,有研究人员在多中心二期试验中,评估了atezolizumab联合bevacizumab在晚期肾细胞肿瘤(RCC)患者中的治疗情况,这些肿瘤具有不同的组织学变化或者具有≥20%的肉瘤样分化。研究中,60名患者至少接受1个剂量的研究药物,大多数患者(65%)之前均未接受过治疗。整个群体的总体响应比例(ORR)为33%,在具有肉瘤样分化的透明细胞RCC患者中为50%,在具有不同病理学RCC患者中为

最近,有研究人员在多中心二期试验中,评估了atezolizumab联合bevacizumab在晚期肾细胞肿瘤(RCC)患者中的治疗情况,这些肿瘤具有不同的组织学变化或者具有≥20%的肉瘤样分化。

研究中,60名患者至少接受1个剂量的研究药物,大多数患者(65%)之前均未接受过治疗。整个群体的总体响应比例(ORR)为33%,在具有肉瘤样分化的透明细胞RCC患者中为50%,在具有不同病理学RCC患者中为26%。PFS均值为8.3个月(95% CI, 5.7到10.9个月)。PD-L1状态在36名患者中是可以检测的;15名(42%)患者的肿瘤细胞表达≥1%。ORR在PD-L1阳性患者中为60%(n=9),而在PD-L1阴性患者中为19%(n=4)。另外,8名(13%)患者发展为治疗相关3级毒性反应。研究没有发现与治疗相关的4-5级毒性反应。QOL在整个治疗期间均保持稳定。

最后,研究人员指出,Atezolizumab和Bevacizumab治疗时安全的,并且在不同组织学RCC患者或者≥20%的肉瘤样分化患者中具有客观的响应。他们的研究也促使了对罕见RCC患者更深入的探索,尤其是那些PD-L1阳性肿瘤。

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    2020-01-11 minlingfeng
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    2020-01-17 snf701207
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    2019-12-07 anti-cancer

    谢谢梅斯分享这么多精彩信息

    0

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