Lancet:晚期NSCLC患者行常规分子表达谱分析是可行的

2016-01-15 sushine MedSci原创

在晚期非小细胞肺癌(NSCLC)患者的日常护理中,推荐行分子表达谱分析来检测已知的致癌因素。然而,这项政策在全国实行的可行性及效果却尚未可知。本研究旨在评估正在接受为期1年的筛查的NSCLC患者的特点、分子表达谱以及临床结果。

在晚期非小细胞肺癌(NSCLC)患者的日常护理中,推荐行分子表达谱分析来检测已知的致癌因素。然而,这项政策在全国实行的可行性及效果却尚未可知。本研究旨在评估正在接受为期1年的筛查的NSCLC患者的特点、分子表达谱以及临床结果。

本研究纳入了在法国28个已认证的区域遗传中心常规接受EGFR突变,ALK重排,以及HER2(ErbB2)、KRAS、BRAF和PIK3CA突变筛查的晚期NSCLC患者,时间为2012年4月至2013年4月,为期1年。研究人员评估了患者6个常规筛查基因突变的频率,获得分析表达谱结果的原因以及患者的临床结果。

结果共纳入了17664名NSCLC患者(中位数年龄为64.5岁;65%为男性;81%为吸烟者或存在吸烟史;76%为腺癌患者),进行了18679次分子表达谱分析。从开始分析至获得书面报告的时间中位数为11天。50%的患者存在基因突变;17706名可获得数据的患者中有1947名(11%)患者存在EGFR突变,11723个可获得数据的中有98名(1%)患者存在HER2突变,17001个可获得的数据中有4894名(29%)患者存在KRAS突变,13906个可获得的数据中有262名(2%)患者存在BRAF突变,10678个可获得的数据中有252名(2%)患者存在PIK3CA突变;8134个可获得数据中共有388名(5%)患者存在ALK重排。分析期间随访时间的中位数为24.9个月。基因突变影响4176名(51%,共8147名患者)患者的一线治疗,且可显著改善一线(存在一个基因突变者 VS. 不存在基因突变者=37% VS. 33%)及二线(17% VS. 9%)治疗中达到总体响应的患者的比例。无不存在基因突变的患者相比,患者存在某一基因突变还可显著改善其一线无进展存活率(10个月 VS. 7.1个月)以及总体存活率(16.5个月 VS. 11.8个月)。

总而言之,全国范围内,对晚期NSCLC患者行常规分子表达谱分析是可行的。基因突变的频率,分析结果获得时间以及基因突变检测所获得的临床优势表明,此政策提供了一个临床益处。

原始出处:

Fabrice Barlesi, Julien Mazieres, et al.. Routine molecular profiling of patients with advanced non-small-cell lung cancer: results of a 1-year nationwide programme of the French Cooperative Thoracic Intergroup (IFCT). Lancet, 14 January 2016.

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    2016-07-18 howi
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    2016-12-01 jklm09
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