Ann Oncol:ALK不影响培美曲塞抗晚期非小细胞肺癌效果

2012-08-16 君亭 医学论坛网

     《肿瘤学年鉴》(Ann Oncol)近期发表的一项研究表明,在接受培美曲塞或非铂类/培美曲塞联合治疗的晚期非小细胞肺癌(NSCLC)患者中,间变性淋巴瘤激酶(ALK)阳性和阴性患者的无进展生存期(PFS)相似。在不吸烟或有轻度吸烟史的患者中,无论ALK状态如何,一线铂类/培美曲塞治疗可能延长PFS。   ALK阳性NSCLC对crizotinib反应良好。为了确定ALK阳性

  

  《肿瘤学年鉴》(Ann Oncol)近期发表的一项研究表明,在接受培美曲塞或非铂类/培美曲塞联合治疗的晚期非小细胞肺癌(NSCLC)患者中,间变性淋巴瘤激酶(ALK)阳性和阴性患者的无进展生存期(PFS)相似。在不吸烟或有轻度吸烟史的患者中,无论ALK状态如何,一线铂类/培美曲塞治疗可能延长PFS。

  ALK阳性NSCLC对crizotinib反应良好。为了确定ALK阳性NSCLC是否也对培美曲塞敏感,研究者在接受培美曲塞为基础化疗的晚期NSCLC患者中,回顾性地评估了ALK阳性和阴性患者的PFS。

  研究者在美国、澳大利亚和意大利确定了121例晚期ALK阳性NSCLC患者。作为对比,研究者还评估了266例晚期、ALK阴性、表皮生长因子受体(EGFR)野生型NSCLC患者,其中包括79例KRAS突变和187例KRAS野生型(WT/WT/WT)患者。此外,研究者确定了接受不同培美曲塞方案治疗患者的PFS。

  在70例接受铂类/培美曲塞联合治疗的ALK阳性患者中,中位PFS(mPFS)为7.3个月。51例接受培美曲塞单药或非铂类/培美曲塞联合治疗的ALK阳性患者的mPFS为5.5个月。

  在ALK阴性患者中,除了一线接受铂类/培美曲塞联合治疗的KRAS突变和WT/WT/WT患者的mPFS分别为4.2和5.4个月之外,接受各种培美曲塞为基础治疗患者的PFS与相应的ALK阳性患者相似。

  但是,在一线接受铂类/培美曲塞治疗的不吸烟或有轻度吸烟史(0~10包-年)的患者中,ALK阳性和阴性患者的PFS无差异。

  相关链接:Shaw AT, Varghese AM, Solomon BJ, Costa DB, Novello S, Mino-Kenudson M, Awad MM, Engelman JA, Riely GJ, Monica V, Yeap BY, Scagliotti GV.Pemetrexed-based chemotherapy in patients with advanced, ALK-positive non-small cell lung cancer.Ann Oncol. 2012 Aug 10



    

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    2013-02-19 minlingfeng
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