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Brit J Cancer:晚期尿路上皮癌中结合临床和基因组因素的模型预测对PD-1/PD-L1阻断的响应

2020-01-04 AlexYang MedSci原创

在转移尿路上皮癌(mUC)中,与免疫检查点抑制剂(ICIs)响应相关的可预测生物标记仍旧缺乏。最近,有研究人员在mUC中调查分析了与ICIs响应有关的基因组和临床因素。研究包括了62名进行了ICI治疗的mUC患者,并进行了肿瘤靶向测序。研究人员调查了候选生物标记与临床益处(CB,肿瘤大小的任何客观上的减少)和非临床益处(NCB,肿瘤大小没有变化或者肿瘤大小增加)。研究还包括了一个由39名紫杉烷治疗

在转移尿路上皮癌(mUC)中,与免疫检查点抑制剂(ICIs)响应相关的可预测生物标记仍旧缺乏。最近,有研究人员在mUC中调查分析了与ICIs响应有关的基因组和临床因素。

研究包括了62名进行了ICI治疗的mUC患者,并进行了肿瘤靶向测序。研究人员调查了候选生物标记与临床益处(CB,肿瘤大小的任何客观上的减少)和非临床益处(NCB,肿瘤大小没有变化或者肿瘤大小增加)。研究还包括了一个由39名紫杉烷治疗的mUC患者组成的比较群体。研究发现,在ICI群体单变量分析中,9个临床和7个基因组因素与临床结果相关。在其中的16个因素中,多变量分析表明中性粒细胞与淋巴细胞比值(NLR)≥5(OR=0.12, 95% CI, 0.01-1.15)、内脏转移(OR=0.05, 95% CI, 0.01-0.43)和单核苷酸变异(SNV)数量<10(OR=0.04, 95% CI, 0.006-0.27)鉴定为ICI的NCB独立预测因子(c-statistic=0.90)。在紫杉烷治疗的群体中,16个变量中与任何一个均与临床益处无关。

最后,研究人员指出,他们的3因素模型包括了基因组(SNV数>9)和临床(NLR<5,不包括内脏转移)变量,能够预测对mUC患者中ICI的受益情况,但是对紫杉烷治疗没有预测价值。研究人员也指出他们的结果还需要进一步的外部验证,才能在常规临床护理中使用。

原始出处:

Amin H. Nassar, Kent W. Mouw, Opeyemi Jegede et al. A model combining clinical and genomic factors to predict response to PD-1/PD-L1 blockade in advanced urothelial carcinoma. Brit J Cancer. 20 Dec 2019

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    2020-01-06 smartjoy
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    2020-01-04 CHANGE

    梅斯里提供了很多疾病的模型计算公式,赞一个!

    0

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