This is a single center, single arm, open label and prospective clinical study. Patients who have EGFR-mutant stage IIIA-IIIB and unresectable lung adenocarcinoma will receive Icotinib as consolidation therapy after synchronous or sequential chemoradiotherapy. The primary objective of this study is relapse free survival. The secondary objectives are overall survival, the frequency of adverse events and patients' quality of life.
The main purpose of this study is to evaluate the relapse free survival of patients who have EGFR-mutant stage IIIA-IIIB Non-small Cell Lung Cancer and receive Icotinib as consolidation therapy after synchronous or sequential chemoradiotherapy.