应用培美曲塞为基础方案化疗的晚期非小细胞肺癌患者EGFR基因突变与生存的关系  被引量:18

Association between different EGFR mutation status and survival in pemetrexed-based chemotherapy for advanced non-small cell lung cancer

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作  者:郏博[1] 何小慧[1] 杨晟[1] 王子平[1] 李峻岭[1] 王燕[1] 王宏羽[1] 邢镨元[1] 刘雨桃[1] 石远凯[1] 

机构地区:[1]中国医学科学院北京协和医学院肿瘤医院内科抗肿瘤分子靶向药物临床研究北京市重点实验室,北京100021

出  处:《中华医学杂志》2013年第46期3659-3662,共4页National Medical Journal of China

基  金:中央保健专项基金资助(B2009B124);北京市科技专项(Z121102009212055)

摘  要:目的 探讨应用培美曲塞为基础方案化疗的非小细胞肺癌(NSCLC)患者表皮生长因子受体(EGFR)基因突变与生存的关系.方法 回顾性分析2009年4月至2012年9月中国医学科学院肿瘤医院146例应用培美曲塞为基础方案化疗的NSCLC患者,其中培美曲塞为基础方案一线化疗患者79例(培美曲塞一线治疗组),培美曲塞一线化疗后培美曲塞维持治疗的患者38例(培美曲塞维持治疗组),培美曲塞一线化疗后应用酪氨酸激酶抑制剂(TKI)维持治疗的患者29例(TKI维持治疗组).对不同治疗组的中位无进展生存期(PFS)进行分析,对培美曲塞一线治疗组及培美曲塞维持治疗组不同EGFR突变状态患者的中位PFS进行比较.结果 培美曲塞一线治疗组,培美曲塞维持治疗组和TKI维持治疗组的中位PFS分别为4.6个月(95% CI:2.8 ~6.4),9.8个月(95% CI:6.1~13.5)和14.5个月(95% CI:11.8~17.2)(P =0.000).培美曲塞一线治疗组EGFR突变、无突变及突变情况不详NSCLC患者中位PFS分别为5.2个月(95% CI:2.8 ~7.7),4.0个月(95% CI:0~10.8)和4.6个月(95% CI:3.4 ~5.8) (P =0.661).培美曲塞维持治疗组EGFR突变、无突变及突变情况不详NSCLC患者的中位PFS分别为8.5个月(95% CI:4.0~13.1),12.6个月(95% CI:11.6 ~13.7)和8.0个月(95% CI:5.8 ~ 10.3)(P =0.468).结论 不同EGFR突变状态下应用培美曲塞为基础方案一线化疗的NSCLC患者生存无明显差异.无论是何种EGFR突变状态,TKI维持治疗较培美曲塞维持治疗均有生存优势.Objective To explore the association between different epidermal growth factor receptor (EGFR) mutation status and survival in pemetrexed-based chemotherapy for advanced non-small-cell lung cancer (NSCLC).Methods A retrospective cohort study was performed to assess 146 patients with advanced NSCLC at Cancer Institute/Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College.The first-line regimens included pemetrexed based chemotherapy (pemetrexed first-line therapy group,n =79),pemetrexed based chemotherapy plus pemetrexed maintenance chemotherapy (pemetrexed maintenance therapy group,n =38) and pemetrexed based chemotherapy plus tyrosine kinase inhibitors (TKI) maintenance therapy (TKI maintenance therapy group,n =29).Median progression-free survival (PFS) was determined.For comparison,median PFS was evaluated for EGFR-positive,EGFR-negative versus EGFR mutation unknown NSCLC patients in first-line pemetrexed therapy and pemetrexed maintenance therapy groups.Results The median PFS was 4.6 (95% CI:2.8-6.4),9.8 (95% CI:6.1-13.5) and 14.5 (95% CI:11.8-17.2) months in pemetrexed first-line therapy,pemetrexed maintenance therapy and TKI maintenance therapy groups respectively (P =0.000).No difference existed in PFS for pemetrexed first-line therapy group with a median PFS of 5.2 (95 % CI:2.8-7.7),4.0 (95 % CI:0-10.8) and 4.6 (95% CI:3.4-5.8) months respectively (P =0.661).Among EGFR-positive,EGFRnegative and EGFR mutation status unknown patients in pemetrexed maintenance therapy group,the median PFSwas8.5 (95%CI:4.0-13.1),12.6 (95%CI:11.6-13.7) and 8.0 (95%CI:5.8-10.3) mnonths with no significant statistical difference (P =0.468).Conclusions No significant difference exists in survival between different EGFR mutation status for pemetrexed based first-line chemotherapy.And TKI maintenance therapy is associated with better survival than pemetrexed maintenance therapy regardless of EGFR status.

关 键 词: 非小细胞肺 受体 表皮生长因子 培美曲塞二钠 突变 

分 类 号:R734.2[医药卫生—肿瘤]

 

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