近年来,肺癌的发病率及死亡率不断上升,在我国已占常见恶性肿瘤的首位,在肺癌中非小细胞肺癌(ＮＳＣＬＣ)约占75%～80%左右,其中75%的患者由于病变已侵袭邻近器官或已转移而失去手术机会[1,2]。因此探索一些疗效好而毒副作用较小的化疗方案有重要的临床意义。应用依托泊甙(ｅｔ In recent years, the incidence and mortality of lung cancer have been on the rise. As the most common malignant tumor in our country, non-small cell lung cancer (NSCLC) accounts for about 75% -80% in lung cancer, of which 75% Invading adjacent organs or has been transferred and lost the opportunity to surgery [1,2]. Therefore, to explore some good efficacy and less side effects of chemotherapy has important clinical significance. Application etoposide (et