摘要

1文献来源Zhang Q,Luo J,Wu S,et al. Prognostic andpredictive impact of circulating tumor DNA in patientswith advanced cancers treated with immunecheckpoint blockade[J]. Cancer Discov,2020,10(12):1842-1853.2证据水平2b。3背景用于监测免疫检查点抑制剂治疗反应的生物标志物很少,尤其是可用于多种癌症类型的生物标志物。既往文献表明,在接受程序性死亡配体-1(programmed death ligand 1,PD-L1)抑制剂治疗的患者中,