JCO:埃罗替尼不能延长NSCLC无病生存时间

2015-09-27 MedSci MedSci原创

 每年被诊断为肺癌的患者约有20-25%的可以切除治疗的非小细胞肺癌(NSCLC)。但是,仅有六成的患者可以在术后存活超过五年。在十年前第一次有报道基于顺铂的辅助化疗可以带来显著的存活率。随后其他的随机试验也证明了NSCLC2和3期患者接受辅助化疗可以存活更久。埃罗替尼是一种口服的小分子表皮生长因子受体酪氨酸激酶抑制剂,已经被证明对晚期肺癌有效。 研究人员首先假设埃罗替尼用于N

每年被诊断为肺癌的患者约有20-25%的可以切除治疗的非小细胞肺癌(NSCLC)。但是,仅有六成的患者可以在术后存活超过五年。在十年前第一次有报道基于顺铂的辅助化疗可以带来显著的存活率。随后其他的随机试验也证明了NSCLC 2和3期患者接受辅助化疗可以存活更久。埃罗替尼是一种口服的小分子表皮生长因子受体酪氨酸激酶抑制剂,已经被证明对晚期肺癌有效(EJC:培美曲塞+埃罗替尼可改善非鳞状NSCLC生存)。

研究人员首先假设埃罗替尼用于NSCLC的辅助疗法有效。随机开展了一项国际性的随机、双盲、安慰剂对照临床研究。受试者全部是ⅠB到ⅢA期NSCLC患者,所有人都接受了肿瘤切除手术。按照2:1的比例,患者被分为两组。前者每天服用一次150mg埃罗替尼,后者则服用安慰剂,服药周期长达两年。分类因素包括了癌症分期、组织切片、先前的辅助化疗、吸烟状态、EGFR放大状态和国籍。主要终点是无病存活率(DFS)。共有973人参与此次研究。两组的DFS无统计学上的显著性差异。在EGFRm阳性组中的161名患者中,埃罗替尼组的DFS更高,达到了46.4个月,而安慰剂组为28.5个月,但是由于分层检测操作的原因,并没有统计学上的显著性差异。最常见的不良反应是皮疹和腹泻。

此次研究表明,埃罗替尼辅助化疗并不能延长EGFR表达NSCLC或EGFRm阳性患者的DFS。

原始出处:
Karen Kelly et al. Adjuvant Erlotinib Versus Placebo in Patients With Stage IB-IIIA Non–Small-Cell Lung Cancer (RADIANT): A Randomized, Double-Blind, Phase III Trial. Published Ahead of Print on August 31, 2015

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    2015-11-25 lidong40
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