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相关概念视频

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Author Spotlight: Exercise Test for Evaluation of the Functional Efficacy of the Pig Cardiovascular System
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在临床前心血管研究中评估研究设计严谨性:一项复制研究

Isaiah C Jimenez1,2, Gabrielle C Montenegro1,3, Keyana Zahiri1,4

  • 1Stanford Cardiovascular Institute, Stanford, CA.

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临床前心血管研究的方法严谨性,包括性别作为变量,随机化,盲目化和样本大小估计,仍然很低,十年来没有改善. 需要进一步努力,以提高研究设计质量和可重复性.

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科学领域:

  • 心血管研究研究心血管研究
  • 临床前研究 临床前研究
  • 科学复制性 科学复制性

背景情况:

  • 方法论严谨对于可重现的临床前心血管研究至关重要.
  • 缺乏可复制性阻碍了研究成果转化为临床实践.
  • 研究结果的不确定性会影响公众的信任和接受.

研究的目的:

  • 在临床前心血管研究中评估研究设计要素 (SDEs) 的报告.
  • 评估2011年至2021年SDE纳入的趋势.
  • 为了比较SDE包含与人/动物替代研究之间的研究与仅动物研究之间的研究,以及在不同的动物模型之间.

主要方法:

  • 在2011-2021年期间发表的针对SDEs的临床前心血管研究文章进行了选:性别作为生物变量,随机化,盲目化和样本大小功率估计.
  • 复制并扩展了拉米雷斯等人之前的研究. (2017年) 的时间.
  • 基于研究类型 (人/动物与仅动物) 和动物模型大小,分析了SDE纳入的差异.

主要成果:

  • 包括SDEs的比例很低:15.2% (性别),30.4% (随机化),32.1% (盲目化),8.2% (样本大小估计).
  • 在10年期间,没有观察到SDE报告的显著增加.
  • 在人/动物替代研究和仅对动物进行的研究之间发现了随机化和样本大小估计的显著差异.

结论:

  • 临床前心血管研究的方法严谨性在研究类型和动物模型之间不一致.
  • 2011年至2021年期间,SDEs的报告没有得到改善.
  • 需要加大努力,将严格的研究设计元素纳入临床前心血管研究中.