低剂量阿司匹林用于PI3K改变局部结肠直肠癌
Anna Martling1,2, Ida Hed Myrberg3, Mef Nilbert4
1Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm.
在患有PIK3CA突变的患者中,阿司匹林显著降低了结直肠癌复发率. 这一随机试验表明阿司匹林对这些特定癌症患者的无疾病生存有益.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 临床试验 临床试验
背景情况:
- 阿司匹林使用与减少结直肠癌发病率有关.
- 观察性研究表明,阿司匹林可以改善PIK3CA突变瘤患者的生存率.
- 需要随机试验数据来确认这些好处.
研究的目的:
- 评估阿司匹林在预防结肠直肠癌复发中的有效性.
- 评估阿司匹林对患有PIK3K通路基因变异的患者无疾病生存的影响.
- 确定阿司匹林在这个患者群体中的安全性.
主要方法:
- 进行了一项双盲,随机,安慰剂对照试验.
- 包括患有II/III期结肠癌或I-III期直肠癌以及PI3K通路基因变异的患者.
- 参与者接受阿司匹林 (每天160毫克) 或安慰剂3年,根据PIK3CA突变状态分层.
主要成果:
- 在患有PIK3CA热点突变的患者中,阿司匹林显著降低了3年复发发病率 (7.7%vs14.1%) 和其他PI3K路径改变 (7.7%vs16.8%).
- 在两组中,阿司匹林改善了3年的无疾病生存率.
- 与安慰剂 (11.6%) 相比,阿司匹林组 (16.8%) 的严重不良事件更频繁.
结论:
- 在患有PIK3CA热点突变的患者中,阿司匹林显著降低了结直肠癌复发率.
- 在其他体质PI3K通路基因变异的患者中也观察到类似的益处.
- 这些发现支持阿司匹林在改善特定结肠直肠癌患者亚组的结果中的作用.
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