Treatment of EGFR-TKI for Residual Lesions of Multiple Synchronous Ground-glass Opacities

This study is a multi-center, prospective, double-blind randomized controlled clinical trial. The purpose is to evaluate the efficacy and safety of EGFR-TKI on residual GGOs after surgery in patients with multiple primary lung cancers with ground glass nodules. This study is expected to prove that compared with placebo in the control group, EGFR-TKI can significantly reduce the residual GGOs lesions in patients with EGFR-positive multiple primary lung cancers with ground-glass opacity, and bring a higher objective response rate (ORR), thus provides new insights for treatment of these patients.