A Non-interventional Retrospective Study on Overall Survival in Completely Resected Chinese NSCLC Patients With Adenocarcinoma Histology- ICAN Extension Study

ICAN was a non-interventional study to explore the EGFR gene mutation status, clinical outcome and recurrent risk factors in early stage Chinese NSCLC with adenocarcinoma histology after complete resection (NIS-OCN-DUM-2009/1). The study had enrolled 571 patients from Apr. 2010 to Dec. 2010 in 24 sites located in the mainland of China. The study had completed and major results showed that EGFR mutation rate was 55.1% and 3-year DFS rate was 61.7% in early stage Chinese NSCLC with adenocarcinoma histology after complete resection. Postoperative pathologic stage, gender, surgical and resection types had a statistically significant association with 3-year DFS. This study is ICAN extension study with the purpose to collect the overall survival data from previous ICAN study. Approximately 571 patients who participated in ICAN study will be enrolled.