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Circulation:马昔腾坦治疗艾森曼格综合征的评估

2018-08-25 xiangting MedSci原创

在ES患者从基线到第16周运动能力变化的主要终点上,马昔腾坦没有显示出优于安慰剂的优势。

艾森曼格综合征(Eisenmenger syndrome,ES)有先天性心脏病相关的严重肺动脉高压,并伴随右向左分流。这项多中心、双盲、随机、安慰剂对照的16周III期MAESTRO研究评估了内皮素受体拮抗剂马昔腾坦在ES患者中的疗效和安全性。

研究纳入年龄≥12岁且WHO功能分级(FC)II-IV级的ES患者,按照1:1的比例随机分为安慰剂组或马昔腾坦10mg,每日一次组,共16周。患有复杂心脏畸形、唐氏综合征和既往PAH治疗的患者符合入选条件。主要终点是在6分钟步行距离(6MWD)从基线到第16周的变化。次要终点包括WHO FC从基线到第16周的变化。探索性终点包括治疗结束时的NT-proBNP,表示为基线的百分比。在血流动力学亚组研究中,探索性终点包括第16周的肺血管阻力指数(PVRi),表示为占基线的百分比。

226名患者被随机分组(马昔腾坦组 n=114;安慰剂组n=112)。基线时,60%的患者为WHO FC II,27%的患者接受磷酸二酯酶5型抑制剂治疗。第16周,马昔腾坦和安慰剂组6MWD从基线的平均变化为18.3m和19.7m(最小二乘平均差,-4.7 m;95%CL,-22.8,13.5; P=0.612)。马昔腾坦组和安慰剂组中分别有8.8%和14.3%患者的WHO FC从基线到第16周有所改善(优势比,0.53; 95%CL,0.23,1.24)。与安慰剂相比,马昔腾坦组的NT-proBNP水平降低(几何平均值,0.80; 95%CL,0.68,0.94)。在血液动力学亚组研究中(n=39),与安慰剂相比,马昔腾坦的PVRi降低(几何平均值比率为0.87;95%CL,0.73,1.03)。马昔腾坦与安慰剂相比,最常见的不良事件是头痛(11.4 vs 4.5%)和上呼吸道感染(9.6 vs 6.3%);36.0% vs 8.9%的患者血红蛋白从基线降低≥2g/dL。5名患者(3名马昔腾坦;2名安慰剂)提前终止了治疗,1名患者死亡(马昔腾坦组)。

在ES患者从基线到第16周运动能力变化的主要终点上,马昔腾坦没有显示出优于安慰剂的优势。

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    2018-08-25 owlhealth

    hey 不错了,学习了

    0

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    2018-08-25 phoebeyan520

    学习了

    0

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