Circulation:地诺单抗或阿仑膦酸是否可延缓钙化性主动脉瓣狭窄进展?

2021-06-26 Nebula MedSci原创

地诺单抗和阿仑膦酸均不能干预钙化性主动脉瓣狭窄患者的主动脉瓣钙化进展

瓣膜钙化是主动脉瓣狭窄发病机制和进展的核心。临床前和观察性研究表明,瓣膜间质细胞的骨转换和成骨细胞分化是重要的促成机制。

本研究旨在确定用地诺单抗(denosumab)或阿仑膦酸(alendronic acid)抑制这些通路是否可以减少主动脉瓣狭窄的疾病进展。

这是一项单中心、平行组、双盲随机对照试验,招募了50岁以上的钙化性主动脉瓣狭窄患者(主动脉射流速度峰值>2.5 m/s),按2:1:2:1分至地诺单抗组(60 mg/6周)、安慰剂注射组、阿仑膦酸组(70 mg/周)或安慰剂胶囊组。多普勒超声心动图、计算机断层扫描主动脉瓣钙化评分、18F-氟化钠正电子发射断层扫描和计算机断层扫描对受试者进行连续地评估。主要终点是24 个月时主动脉瓣钙化评分的变化。

共招募了150位钙化性主动脉瓣狭窄患者(平均72±8岁,21%的女性,主动脉射流速度峰值 3.36 m/s,主动脉瓣钙化评分 1152 AU),随机分至地诺单抗组(n=49)、阿仑膦酸组(n=51)和安慰剂组(注射组和胶囊组各25人)。

6个月时各组血清C末端端肽的变化

6个月时,地诺单抗组和阿仑膦酸组患者的血清C末端端肽(一种骨转换的量度)均较基线减半(分别是0.23→0.11 ug/L和0.20→0.09 ug/L),但安慰剂组无此改变(0.23→0.26 ug/L)。

24个月时,地诺单抗和安慰剂组与基线相比的主动脉瓣钙化评分的变化没有明显差异(343 [198–804 AU] vs 354 AU [76–675 AU]; P=0.41),阿仑膦酸组和安慰剂组之间的也没有明显差异(326 [138–813 AU] vs 354 AU [76–675 AU]; P=0.49)。同样,主动脉射流速度峰值或18F-氟化钠主动脉瓣摄取的变化也没有差异。

综上所述,地诺单抗和阿仑膦酸均不能干预钙化性主动脉瓣狭窄患者的主动脉瓣钙化进展。因此,我们需要探索替代途径和机制,为越来越多的患有这种潜在致命疾病的患者寻找治疗方法。

原始出处:

Tania A. Pawade, et al. Effect of Denosumab or Alendronic Acid on the Progression of Aortic Stenosis: A Double-Blind Randomized Controlled Trial. Circulation. 2021;143:2418–2427. https://doi.org/10.1161/CIRCULATIONAHA.121.053708

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    2021-12-22 venlin
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    2021-06-27 小小医者

    #地诺单抗#的作用未来一步步检验

    0

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