用PCSK9抑制剂埃沃洛库马布达到非常低的LDL胆固醇度的临床疗效和安全性:FOURIER试验的预先规定的二次分析
Robert P Giugliano1, Terje R Pedersen2, Jeong-Gun Park1
1TIMI Study Group, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, MA, USA.
Lancet (London, England)
|September 2, 2017
概括
通过使用evolocumab达到非常低的LDL胆固醇水平,可以显著降低心血管风险,但没有安全问题. 这些发现支持将LDL胆固醇降低到目前心血管疾病患者的指导标准以下.
科学领域:
- 心血管医学
- 药理学
- 临床试验
背景情况:
- 低密度脂蛋白 (LDL) 胆固醇是动脉样硬化心血管疾病的主要危险因素.
- 对于降低LDL胆固醇的最佳和安全门仍然是争论的主题.
- 在FOURIER试验中,研究了PCSK9抑制剂evolocumab对心血管风险的降低.
研究的目的:
- 研究4周LDL胆固醇水平与FOURIER试验中的临床结果之间的关系.
- 评估逐步降低LDL胆固醇度的安全性.
- 在患有心血管疾病的广泛患者群体中评估evolocumab的疗效.
主要方法:
- 这是一项预先规定的对25982名随机 FOURIER 试验患者的二次分析.
- 检查了4周LDL胆固醇与心血管结果和安全事件之间的关系,平均时间为2.2年.
- 使用多变量建模来调整影响LDL胆固醇水平的基线因素.
主要成果:
- 在较低的LDL胆固醇和初级和二级复合心血管终点的风险降低之间观察到显著的单调关系,扩展到< 0. 2 mmol/ L.
- 达成的LDL胆固醇水平和安全结果,包括严重的不良事件之间没有发现显著的关联.
- 10% 的患者达到LDL胆固醇<0. 5 mmol/ L,并观察到最低百分位数的好处.
结论:
- 达到非常低的LDL胆固醇度 (< 0. 2 mmol/ L) 与主要心血管事件的显著减少有关.
- 非常低的LDL胆固醇水平在2.2年的中位数随访期间被发现是安全的.
- 这些发现支持在患有心血管疾病的患者中采取更积极的降低LDL胆固醇的策略,可能低于目前的建议.
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