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晚期非小细胞肺癌TKI耐药后治疗进展 被引量:1

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摘要 在非小细胞肺癌( NSCLC )中约15%白种人患者存在表皮生长因子受体( EGFR)突变〔1〕,而亚裔人种的EGFR突变率较高,约为30%〔2〕。多项大型临床资料显示以EGFR-酪氨酸激酶抑制剂( TKI)为代表的分子靶向药物治疗晚期NSCLC可提高患者的生活质量,延长患者的生存期,已成为临床治疗肺癌的手段之一。 IPASS、NEJ002、WJTOG3405、EURTAC 等研究已证实EGFR-TKI一线治疗EGFR突变的晚期NSCLC患者的疗效优于化疗,患者有明显的缓解率( RR)和无进展生存期( PFS)获益〔1〕。 EGFR-TKI如吉非替尼和厄洛替尼已作为一种靶向治疗药物,同时也广泛运用于NSCLC的二三线治疗。研究证实EGFR体细胞活化突变是决定患者对吉非替尼高度敏感的一个决定因素〔3,4〕。这种突变主要体现在19外显子编码的几个高度保守的氨基酸序列( LREA )的缺失和21外显子的点突变(L858)〔4,5〕。很多临床资料显示,EGFR-TKI用于临床治疗患者的无疾病进展中位生存期7~12.6个月〔6,7〕。提示NSCLC易对EGFR-TKI产生耐药。目前EGFR-TKI耐药机制已成为了一个热点话题。
机构地区 吉林省肿瘤医院
出处 《中国老年学杂志》 CAS CSCD 北大核心 2014年第22期6535-6538,共4页 Chinese Journal of Gerontology
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参考文献27

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同被引文献9

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