ASCO 2011: 埃克替尼耐受性优于吉非替尼

2011-06-20 MedSci原创 MedSci原创

 ASCO 2011报道:Sun等的一项研究报告表明,在先前接受过一种或两种化疗药物治疗非小细胞肺癌(NSCLC)患者中,埃克替尼疗效与吉非替尼相似,但前者耐受性优于后者。   一线或二线化疗后疾病进展的NSCLC患者被随机分为埃克替尼(150 mg每日3次)或吉非替尼治疗组(250 mg 每日1次)。主要终点是无进展生存期(PFS)。次要终点是总生存期(OS)、客观缓解率(ORR)、至肿瘤进

 ASCO 2011报道:Sun等的一项研究报告表明,在先前接受过一种或两种化疗药物治疗非小细胞肺癌NSCLC)患者中,埃克替尼疗效与吉非替尼相似,但前者耐受性优于后者。

  一线或二线化疗后疾病进展的NSCLC患者被随机分为埃克替尼(150 mg每日3次)或吉非替尼治疗组(250 mg 每日1次)。主要终点是无进展生存期(PFS)。次要终点是总生存期(OS)、客观缓解率(ORR)、至肿瘤进展时间(TTP)和耐受性。研究采用DsX Scorpion ARMS(基因检测设备)进行FGFR突变分析。

  结果显示,从2009年2月至2010年11月,共有399例患者随机接受埃克替尼(200例)或吉非替尼(199例)治疗。两组的基线特征平衡。埃克替尼组中位PFS较吉非替尼组延长35日[吉非替尼(137日) 对 吉非替尼(102日),危险比(HR)为0.84,95%可信区间(CI)为0.67~1.05],达到了主要非劣效性终点。49.4%的患者在结束时存活,埃克替尼和吉非替尼组OS相似(中位OS分别为504日和531日)。此外,埃克替尼和吉非替尼组ORR(27.6% 对 27.2%)、DCR(75.4% 对 74.9%)、TTP(156日 对 111日)和健康相关生活质量(QoL,101.4±9.6 对 103.0±19.1)相似。埃克替尼和吉非替尼组不良反应发生率分别为60.5%和70.4%,前者显著低于后者(P=0.04)。埃克替尼组 对 吉非替尼组皮疹、腹泻和转氨酶升高的发生率分别为:39.5% 对 49.2%、18.5% 对 27.6%(P=0.03)和8.0% 对 12.6%。132例患者接受了EGFR基因突变分析。66例(50%)患者被检测出基因突变,埃克替尼组和吉非替尼组分别有27(40.9%)和39例(59.1%)。在埃克替尼组和吉非替尼组,无论是突变型(M)还是野生型(W)患者,ORR和PFS无显著差异。在埃克替尼组,M和W患者ORR分别为59.3%(16/27)和5.1%(2/39),PFS分别为198日和70日。在吉非替尼组,M和W患者ORR分别为52.6%(20/39)和3.7%(1/21),PFS分别为158日和76日。

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