Efficacy and safety of PD-1/PD-L1 inhibitors as first-line treatment for esophageal squamous cell carcinoma: a systematic review and meta-analysis
PurposeThis study aims to investigate the efficacy and safety of PD-1/PD-L1 inhibitors in the first-line treatment of esophageal squamous cell carcinoma (ESCC) and identify factors influencing efficacy through a meta-analysis of multiple phase 3 random…