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JAMA:Losmapimod对急性MI住院患者心血管结局的影响

2016-04-11 Mechront 译 MedSci原创

p38丝裂原活化蛋白激酶(MAPK)刺激炎症参与动脉粥样硬化的形成,还与斑块不稳定和心肌梗死(MI)的过程有关。非ST段抬高MI的2期临床试验数据表明,p38 MAPK抑制剂losmapimod可减轻炎症、提高疗效。因此研究者进行了一项随机、安慰剂对照、双盲研究(LATITUDE-TIMI 60),探究losmapimod对急性MI住院患者的安全性和有效性。研究纳入了2013-6-3至2015-1

p38丝裂原活化蛋白激酶(MAPK)刺激炎症参与动脉粥样硬化的形成,还与斑块不稳定和心肌梗死(MI)的过程有关。非ST段抬高MI的2期临床试验数据表明,p38 MAPK抑制剂losmapimod可减轻炎症、提高疗效。因此研究者进行了一项随机、安慰剂对照、双盲研究(LATITUDE-TIMI 60),探究losmapimod对急性MI住院患者的安全性和有效性。

研究纳入了2013-6-3至2015-12-8日来自34个国家322个地点的急性MI住院患者,并且至少有1项心血管风险预测因素。A部分由3503名患者组成,提供安全性和有效性的初步评价。B部分由约22000名患者组成,进一步进行评估。

在指南推荐的治疗背景下,losmapimod组患者(n = 1738)服用7.5 mg bid,安慰剂组有1765人。患者治疗12周,随访12周。以12周时心血管死亡、MI、严重的需要紧急冠状动脉血运重建复发性缺血作为主要终点。

数据显示,A部分3503名患者的中位数年龄66岁,其中1036 [29.6%]是女性,99.1%的患者完成了整个调查。losmapimod组和安慰剂组主要终点分别为137(8.1%)和123(7.0%)人(HR=1.16; 95% CI, 0.91-1.47; P = .24),严重不良事件治疗率分别为16.0%和14.2%。

数据表明,losmapimod并未降低急性MI患者降低主要的缺血性心血管事件风险(与安慰剂对照组相比)。不过这一探索性的有效性研究结果还没有在对现有患者人群进行更大的疗效试验中得到验证。

原始出处:

Michelle L. O’Donoghue, MD, MPH; Ruchira Glaser, MD, MSCE,et al.Effect of Losmapimod on Cardiovascular Outcomes in Patients Hospitalized With Acute Myocardial Infarction.JAMA. Published online April 04, 2016. doi:10.1001/jama.2016.3609


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    2016-04-14 李继凯

    高大上的文章

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    2016-04-14 李继凯

    值得学习

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    2016-04-12 江川靖瑶
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