Circulation:达格列净治疗射血分数降低的心衰患者

2019-11-03 QQY MedSci原创

2型糖尿病患者的预后试验表明使用钠-葡萄糖共转运体-2抑制剂可降低心力衰竭(HF)的住院率。但这些患者中很少有心衰,而那些有心衰的患者特征不明显。因此,钠-葡萄糖共转运体-2抑制剂用于射血分数降低的心衰患者的效应尚不明确。DEFINE-HF试验(研究达格列净对射血分数降低的心衰患者的生物标志物、症状和功能状态的影响)是一项多中心的随机对照试验,患者的纳入标准为左心室射血分数≤40%、NYHA II

2型糖尿病患者的预后试验表明使用钠-葡萄糖共转运体-2抑制剂可降低心力衰竭(HF)的住院率。但这些患者中很少有心衰,而那些有心衰的患者特征不明显。因此,钠-葡萄糖共转运体-2抑制剂用于射血分数降低的心衰患者的效应尚不明确。

DEFINE-HF试验(研究达格列净对射血分数降低的心衰患者的生物标志物、症状和功能状态的影响)是一项多中心的随机对照试验,患者的纳入标准为左心室射血分数≤40%、NYHA II-III级、估计肾小球滤过率≥30mL/min/1.73m2和利钠肽升高。共263位患者被随机分至达格列净组或安慰剂组,持续治疗12周。主要终点是平均NT-proBNP和堪萨斯城心肌病问卷评分增加5分及以上的患者比例,或NT-proBNP减少超过20%。

6周和12周时,达格列净组和安慰剂组的校正NT-proBNP没有显著差异。达格列净组和安慰剂组达到堪萨斯城心肌病问卷评分增加5分及以上或NT-proBNP减少超过20%的患者比例分别是61.5%和50.4%。无论有无2型糖尿病,上述结果保持不变。

射血分数降低的心衰患者采用达格列净治疗12周并不影响NT-proBNP的平均值,但会增加具有临床意义的与心衰相关的健康状态或利钠肽改善的患者比例,而且患者是否合并2型糖尿病并不影响达格列净的效益。

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