Circulation:黄嘌呤氧化酶抑制剂别嘌呤醇未能改善心衰患者的状况(EXACT-HF研究)

2015-04-27 MedSci MedSci原创

    氧化应激可导致心脏衰竭(HF)的进展。在高尿酸血症HF患者抑制黄嘌呤氧化酶可能提高疗效。    我们随机分配253例有心衰症状,左心室射血分数(LVEF)≤40%,血清尿酸水平≥9.5毫克/分升的患者接受别嘌呤醇(目标剂量,每天600毫克)或安慰剂的双盲,多中心临床试验。在24周的主要复合终点是基于生存,心衰恶化,和病人的全球评估。次要终点包括生活质

氧化应激可导致心脏衰竭(HF)的进展。在高尿酸血症HF患者抑制黄嘌呤氧化酶可能提高疗效。

我们随机分配253例有心衰症状,左心室射血分数(LVEF)≤40%,血清尿酸水平≥9.5毫克/分升的患者接受别嘌呤醇(目标剂量,每天600毫克)或安慰剂的双盲,多中心临床试验。在24周的主要复合终点是基于生存,心衰恶化,和病人的全球评估。次要终点包括生活质量的改变,亚极量运动能力和LVEF。与安慰剂组相比,别嘌呤醇治疗组中尿酸水平显著降低(治疗差异,在12和24周分别为-4.2[-4.9,-3.5〕毫克/分升和-3.5[-4.2,-2.7〕毫克/分升,P<0.0001)。在24周时,别嘌呤醇和安慰剂组的患者在临床状态没有显著差异(分别为恶化45%和46%,环比持平为42%和34%,提高了13%和19%; P = 0.68)。在12和24周,在堪萨斯城心肌病问卷分数或2组之间6分钟步行路程的距离变化无显著差异。在24周时,两组的LVEF没有组件变化。别嘌呤醇组皮疹发生更频繁(10% VS 2%,P = 0.01),但有在各组间的严重不良事件的发生率(20% VS 15%,p = 0.36)没有什么区别。

在高危心衰射血分数降低和升高的尿酸水平患者中,含有别嘌呤醇的黄嘌呤氧化酶抑制剂未能在24周时改善临床状况,运动能力,生活质量,或LVEF。

原始出处:

Michael M. Givertz1*; Kevin J. Anstrom2; Margaret M. Redfield3; Anita Deswal4; Haissam Haddad5; Javed Butler6; W. H. Wilson Tang7; Mark E. Dunlap8; Martin M. LeWinter9; Douglas L. Mann10; G. Michael Felker2; Christopher M. O'Connor2; Steven R. Goldsmith11; Elizabeth O. Ofili12;Effects of Xanthine Oxidase Inhibition in Hyperuricemic Heart Failure Patients: The EXACT-HF Study,Circulation,2015.4.14

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    2015-05-26 jklm09

    #抑制剂#

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    2015-08-01 cenghis

    #黄嘌呤#

    0

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    2015-04-29 yuanming7