根据基线Icosapent乙烯的心血管结果低密度脂蛋白胆固醇:REDUCE-IT随机试验的二次分析
Rahul Aggarwal1, Deepak L Bhatt2, Ph Gabriel Steg3
1Brigham and Women's Hospital Heart and Vascular Center Harvard Medical School Boston MA.
伊科萨乙烯有效地降低了高危患者的心血管事件,高血糖水平,无论他们的基线低密度脂蛋白胆固醇 (LDL-C) 水平. 这一发现支持它的使用,即使在接受他类药物治疗的患有良好控制的LDL-C的患者中.
科学领域:
- 心脏病学 心脏病学
- 药理学 药理学是指药理学的学科.
- 临床试验 临床试验
背景情况:
- 在患有良好控制的基线低密度脂蛋白胆固醇 (LDL-C) 的患者中,icosapent ethyl的有效性仍在研究中.
- 接受他类药物治疗的患有高心血管风险和高甘油的患者是心血管事件减少策略的关键人群.
研究的目的:
- 评估icosapent乙烯在根据基线LDL-C水平分层的患者中减少心血管事件的疗效.
- 为了确定基线LDL-C是否影响高风险患者中icosapent ethyl的益处.
主要方法:
- 进行了对REDUCE-IT随机临床试验 (NCT01492361) 的后期分析.
- 分析了接受他类药物治疗的患者的高甘油 (135-499毫克/分升) 和基线LDL-C (41-100毫克/分升).
- 参与者被随机分配给icosapent乙烯或安慰剂,并根据基线LDL-C分层 (<55 mg/dL与≥55 mg/dL).
- 主要复合终点包括心血管死亡,非致命的心肌梗塞,非致命中风,冠状动脉再血管化或不稳定的心痛.
主要成果:
- 在8175名患者中,12.9%的LDL-C<55 mg/dL,87.1%的LDL-C≥55 mg/dL.
- 伊可萨乙烯显著降低了两个组的主要复合终点:HR 0.66 (95% CI,0.50-0.87) 的LDL-C <55 mg/dL和HR 0.76 (95% CI,0.69-0.85) 的LDL-C ≥55 mg/dL.
- 在基线LDL-C和治疗效果之间没有观察到显著的相互作用 (P的相互作用=0.40).
- 在二次终点和敏感性分析中,研究结果一致.
结论:
- 伊科萨乙烯在治疗他类药物患者的心血管事件中显示出有效性,这些患者的甘油三水平升高,心血管风险高.
- 伊可萨乙烯对心血管的益处独立于基线LDL-C水平.
- 这种药物即使在患者在基线达到最佳LDL-C控制时也有效.
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