Shasha Zhao
Case Report: Exceptional survival with immunotherapy in a patient with EGFR exon 20 insertion (p.S768_D770dup) and high PD-L1 expression
EGFR exon 20 insertion (ex20ins) NSCLC typically shows limited response to immunotherapy. We report a rare case of a smoker with metastatic EGFR ex20ins (p.S768_D770dup) and high PD-L1 expression (TPS 50%) who achieved exceptional survival (OS = 63 mon…