Serplulimab for Patients With Non-small Cell Lung Cancer (NSCLC) With TPS ≥ 50%: a Prospective, Single-center, Single-arm Phase 2 Study.

The study aims to explore new strategies for neoadjuvant treatment of resectable NSCLC patients with TPS ≥ 50%, and to identify potential prognostic biomarkers. Participants with stage ⅠB-ⅢA and TPS ≥ 50% non-small cell lung cancer, excluding EGFR and ALK gene mutations will receive 4 cycles of Serplulimab monotherapy at 4.5mg/kg as neoadjuvant treatment before surgery. Subsequently, they will undergo surgical resection and evaluation of the effect of neoadjuvant therapy. 14 cycles of Serplulimab as adjuvant treatment. Participants will provide blood samples before neoadjuvant treatment, before the third cycle of neoadjuvant treatment, before surgery, and 4-7 days after surgery for Minimal Residual Disease（MRD） detection to assist in evaluating the treatment effect.