Results
As of October 27, 2025, 152 NSCLC pts had received ≥1 dose of YL202/BNT326. Median age: 59 years; all pts were Chinese, and 85.5% had ECOG 1. Efficacy was analyzed separately in patients with EGFRm NSCLC (n=96), AGA-negative non-squamous NSCLC (n=27), squamous NSCLC (n=22). With a median follow-up of 7.8 m, ORR was 41.7% in EGFRm, 48.1% in AGA- non-squamous, and 22.7% in squamous NSCLC (Table). Treatment-related adverse events (TRAEs) occurred in 148 pts (97.4%), 61 (total: 40.1%, 2 mg/kg: 26.4%, 3 mg/kg: 55.8%) had Grade ≥3, 8 pts (5.3%) discontinued treatment due to TRAEs, and one 1 pt died from pneumonia (2.0 mg/kg). Common TRAEs: anemia (67.8%), nausea (44.7%), and decreased appetite (43.4%). Grade ≥3 TRAEs: decreased lymphocyte count (13.2%), anemia (10.5%), decreased neutrophil count (8.6%) and white blood cell count (7.9%). 1 pt had interstitial lung disease (ILD). Table: 11MO