Based on NCCN guideline of the epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKIs) such as erlotinib, gefitinib and icotinib as the first line treatment for advanced Non-Small Cell Lung Cancer (NSCLC), the efficacy of EGFR-TKIs in combination with thoracic radiotherapy as the first line treatment for stage IV NSCLC with active EGFR mutation remains unknown. In this single-arm phase II trial, we chose the subjects with stage IV harboring active EGFR mutation,who were treated by EGFR-TKIs combined with radiation therapy. The primary endpoint is 1-year rate of progression-free survival and the second endpoints are overall survival (OS), objective response rate and toxic and side effect. By evaluating them, we expect to find out the evidence that the combination therapy can benefit the short-term and long-term survival of the patients. Meanwhile, via the stratification analysis of tumor biomarker and immune index, we obtain the evidences for the benefits of comprehensive and individual treatment for advanced NSCLC.
