Multi Dimensional Precise Exploration of Immunoconsolidation Therapy for Locally Advanced NSCLC After Chemo-radiotherapy

The purpose of this study is to carry out a prospective observational study in patients with locally advanced NSCLC receiving radical concurrent chemoradiotherapy and follow-up immune consolidation therapy. By detecting ctDNA and TILs of the patients, we explored the value of blood dynamic monitoring of ctDNA in patients with prognosis stratification and treatment effect, and explored the patients before and after concurrent chemoradiotherapy and immune consolidation therapy The characteristics of DNA, RNA, T cells and other biomarkers were correlated with the efficacy and prognosis.