EGFR-TKIs治疗术后复发肺腺鳞癌患者的临床研究

  目的  分析表皮生长因子受体酪氨酸激酶抑制剂（epidermal growth factor receptor tyrosine kinase inhibitors，EGFR-TKIs）治疗术后肺腺鳞癌（adenosquamous carcinoma of the lung，ASC）患者的疗效。  方法  回顾性分析2006年1月至2014年12月上海交通大学附属胸科医院诊治的ASC 205例，采用描述性分析及Kaplan-Meier法进行生存分析。  结果  筛选出27例EGFR突变并接受TKIs治疗的ASC患者，其中15例患者存在19号外显子缺失突变，12例患者存在21号外显子点突变。临床疗效方面，9例患者部分缓解（partial response，PR），11例患者疾病稳定（stable disease，SD），疾病控制率（disease control rate，DCR）为74.1%。生存分析结果显示，术后中位生存时间为39.0个月（95% CI:25.6~52.4），中位无进展生存时间为15.0个月（95% CI:12.9~17.1），3、5年生存率分别为51.9%、15.3%。  结论  具有EGFR敏感突变的ASC患者能够从TKIs治疗中获益，推荐对ASC患者进行常规EGFR基因突变检测，实现个体化、多学科治疗以改善患者预后。 

Clinical outcomes of epidermal growth factor receptor tyrosine kinase inhibitors in re-current adenosquamous carcinoma of the lung after resection

Objective:To investigate the efficacy of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) in adenosqua-mous carcinoma (ASC) of the lung after resection. Methods:Clinical data of patients suffering from ASC and receiving EGFR-TKI treat-ment at one institution between January 2006 and December 2014 were retrospectively reviewed. Results:A total of 27 EGFR muta-tion-positive patients with ASC subjected to EGFR-TKI therapy were enrolled in this study. EGFR mutations included deletion in exon 19 in 15 cases and point mutation at codon 858 in exon 21 in 12 cases. Of the 27 ASC patients who received EGFR-TKI treatment, 9 exhibit-ed a partial response and 11 manifested a stable disease, and these patients accounted for a disease control rate of 74.1%(20/27). The median overall survival (OS), median progression-free survival, and median relapse OS of the EGFR mutation-positive patients who underwent TKI therapy were 39 months 95%confidence interval (CI)=25.6-52.4], 15 months (95%CI=12.9-17.1), and 19 months (95%CI=0.9-37.1), respectively. The 3-and 5-year survival rates of these patients after operation were 51.9%and 15.3%, respectively. Con-clusion:The survival of EGFR mutation-positive ASC patients treated with EGFR-TKIs was satisfactory. EGFR testing was recommended for ASCs and EGFR-TKI treatment was suitable for ASCs with EGFR-sensitizing mutation.