NEJM:急性冠状动脉综合征后接受阿利人单抗治疗和心血管结局

2018-11-29 xing.T MedSci原创

由此可见,在曾患有急性冠状动脉综合征且接受高强度他汀类药物治疗的患者中,接受阿利人单抗治疗的患者复发缺血性心血管事件的风险低于服用安慰剂的患者。

急性冠状动脉综合征患者发生复发性缺血性血管事件的风险很高。近日,顶级医学期刊NEJM上发表了一篇研究文章,研究人员试图确定在接受高强度他汀类药物治疗的患者中,前蛋白转化酶枯草杆菌蛋白酶9型(PCSK9)的人单克隆抗体阿利人单抗是否会改善急性冠状动脉综合征后的血管结局。

研究人员进行了一项多中心、随机、双盲、安慰剂对照试验,涉及18924名1至12个月前患有急性冠状动脉综合征的患者,其低密度脂蛋白(LDL)胆固醇水平至少为70 mg/dl(1.8mmol/L),非高密度脂蛋白胆固醇水平至少100 mg/dl(2.6mmol/L),或载脂蛋白B水平至少80 mg/dl,并接受强化剂量或最大耐受剂量的他汀类药物治疗。患者被随机分配接受阿利人单抗皮下注射剂量为75 mg(9462名患者)或匹配安慰剂(9462名患者),每2周一次。在不知情的条件下调节阿利人单抗的剂量以使LDL胆固醇水平为25-50mg/dL(0.6-1.3mmol/L)。主要终点为冠心病、非致死性心肌梗死、致死性或非致死性缺血性卒中死亡或需要住院治疗的不稳定性心绞痛死亡的综合事件。

中位随访时间为2.8年。阿利人单抗组903名患者(9.5%)和安慰剂组1052名患者(11.1%)发生复合主要终点事件(风险比为0.85; 95%置信区间[CI]为0.78-0.93; P<0.001)。阿利人单抗组共334名患者(3.5%)和安慰剂组392名患者(4.1%)死亡(风险比为0.85; 95%CI为0.73-0.98)。在基线LDL胆固醇水平为100 mg/dL或更高的患者中,阿利人单抗相对于复合主要终点的绝对益处大于基线水平较低的患者。两组的不良事件发生率相似,但局部注射部位反应除外( 阿利人单抗组为3.8%,安慰剂组为2.1%)。

由此可见,在曾患有急性冠状动脉综合征且接受高强度他汀类药物治疗的患者中,接受阿利人单抗治疗的患者复发缺血性心血管事件的风险低于服用安慰剂的患者。

原始出处:

Gregory G. Schwartz,et al.Alirocumab and Cardiovascular Outcomes after Acute Coronary Syndrome.NEJM.2018.https://www.nejm.org/doi/full/10.1056/NEJMoa1801174

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