分析:评估等性食道炎随机对照试验中安慰剂比率与结果的评估
Angelica Rivas1, Newaz Shubidito Ahmed1, Yuhong Yuan2,3
1Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
Alimentary pharmacology & therapeutics
|November 15, 2024
概括
超过40%的患有乙性食管炎的患者在安慰剂治疗中表现出临床改善,受试验设计的影响. 像内镜和组织学这样的客观措施显示了最小的安慰剂反应,有助于未来临床试验的效率.
科学领域:
- 胃肠病学 胃肠病学
- 临床试验 临床试验
- 药理学 药理学是指药理学的学科.
背景情况:
- 较高的安慰剂反应率复杂化了对乙性食道炎的药物开发.
- 对于埃索诺菲尔性食道炎的最佳试验结果措施尚未明确定义.
研究的目的:
- 在eosinophilic oesophagitis随机对照试验 (RCTs) 中描述临床,内镜和组织学安慰剂反应.
- 为了帮助设计更高效的未来临床试验,以eosinophilic oesophagitis.
主要方法:
- 更新了Cochrane系统综述和安慰剂对照的RCT对eosinophilic oesophagitis治疗的元分析.
- 使用治疗意图和随机效应模型,对安慰剂的临床,内镜和组织学反应者/转发者的聚合比例.
- 使用元回归探索异质性的来源.
主要成果:
- 包括25个RCT. 对安慰剂的综合临床反应为41.0% (实质性的异质性).
- 年龄较大和对安慰剂随机化概率较高降低了临床响应.
- 组织学缓解率较低 (4.3%对于PEC ≤ 6,1.3%对于PEC ≤ 1).
- 安慰剂显示,在Eosinophilic Oesophagitis内镜参考评分中,标准化平均差异为-0.25.
结论:
- 超过40%的患有乙性食管炎的患者经历了临床安慰剂反应,受试验设计因素的影响.
- 客观的内镜和组织学结局表明安慰剂反应率非常低.
- 研究结果支持使用客观措施来提高性食道炎临床试验的效率.
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