摘要

1文献来源Sartore-Bianchi A,Pietrantonio F,Lonardi S,etal. Circulating tumor DNA to guide rechallenge withpanitumumab in metastatic colorectal cancer:the phase 2 CHRONOS trial[J]. Nat Med,2022,28(8):1612-1618.2证据水平1b。3背景最初受益于抗表皮生长因子受体(epithermal growth factor receptor,EGFR)治疗的转移性结直肠癌(metastatic colorectal cancer,mCRC)患者,几乎总会产生耐药性。