JCO:厄洛替尼治疗EGFR突变肺癌患者有效

2015-04-30 丁宁译 MedSci原创

目的:AUY922是一种会引起HSP分子伴侣及其伴随蛋白,包括表皮生长因子受体,降解的Hsp90抑制剂。为评估AUY922和厄洛替尼治疗EGFR突变肺癌患者的效果,及研究在进行厄洛替尼治疗时疾病的进展,我们进行了一个I / II两阶段的临床试验。 方法:所有患者均在厄洛替尼治疗后获得抗性,并在EGFR T790M突变研究项目评估之前进行了重复的肿瘤活检。在第一阶段,18例患者进行了每周一次的AU

目的:AUY922是Hsp90抑制剂,可能具有治疗肺癌的潜力。为评估AUY922和厄洛替尼联合治疗用于已对TKI耐药的EGFR突变肺癌患者的效果,进行了一个I / II两阶段的临床试验。

方法:所有患者均经在厄洛替尼治疗后获得抗性,并在EGFR T790M突变研究项目评估之前进行了重复的肿瘤活检。在第一阶段,18例患者进行了每周一次的AUY922静脉注射治疗,和以28天为周期,每天一次的3 + 3厄洛替尼剂量递增治疗。在第二阶段,另外19例患者进行了最大耐受剂量治疗。第二阶段试验的主要指标是患者的完全和部分缓解率。

结果:在第一阶段(n = 18),除最高剂量组(AUY922 70 mg和厄洛替尼150mg)外,每组中的三例患者进行了治疗,之后拓展到六例患者因为剂量限制性毒性(IE,交界性心律),常见的不良反应是腹泻,皮疹,高血糖,和夜盲症。所有进行最大耐受剂量治疗的患者(n = 25)均可评估药物反应,其部分反应率为16%(4/25,95% CI, 5% ~36%)且为独立的肿瘤T790M状态。

结论:部分反应是能被观察到的,但是AUY922与厄洛替尼治疗因为毒性,特别是夜盲症,其持续时间是有限的,而AUY922和厄洛替尼的II期研究未达到主要目标。

原始出处

Johnson ML1, Yu HA2, Hart EM2, Weitner BB2, Rademaker AW2, Patel JD2, Kris MG2, Riely GJ2.Phase I/II Study of HSP90 Inhibitor AUY922 and Erlotinib for EGFR-Mutant Lung Cancer With Acquired Resistance to Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors.J Clin Oncol. 2015 Apr 13.

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    2016-01-26 lidong40
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    2015-05-02 liuyiping

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