在精神病临床试验中估计治疗效果的异质性
Joshua S Siegel1, Jinglin Zhong2, Sasagu Tomioka2
1Sumitomo Pharma America Inc., Marlborough, MA, USA; Department of Psychiatry, New York University Grossman School of Medicine, New York, USA.
Journal of psychiatric research
|October 23, 2025
概括
一种新的方法,治疗效果估计异质性 (eHTE),确定药物是否同样有利于所有患者. 这种方法在精神病药物试验中发现了显著的治疗异质性,提供了超出平均效果的新见解.
科学领域:
- 临床试验方法论 临床试验方法论
- 生物统计学 生物统计学
- 药理学 药理学是指药理学的学科.
背景情况:
- 与安慰剂对照的试验通常报告了平均变化和效果大小,掩盖了个体患者的反应变化.
- 现有的方法往往无法在精神病学试验中检测治疗效应 (HTE) 的异质性.
研究的目的:
- 引入一种新的方法,即治疗效果的估计异质性 (eHTE),用于评估HTE.
- 评估零假设,即药物对所有参与者都有同等的益处 (HTE = 0).
- 将eHTE的性能与检测HTE的传统方法进行比较.
主要方法:
- 开发了eHTE,这是一种比较研究臂之间的分布差异以检测响应异质性的测量方法.
- 通过模拟验证了eHTE,以评估其保真度,灵敏度和功率.
- 在多个大型安慰剂控制的临床试验中应用了eHTE,包括精神病学研究.
主要成果:
- 模拟显示,eHTE精确估计了异质性,并且可以在大约200名参与者的试验中检测到它.
- 在基于差异的方法失败的精神病学试验中,eHTE确定了治疗异质性的可重现实例.
- 在对文拉法辛 (抑郁症) 和达索特拉林 (暴饮暴食障碍) 的试验中发现了显著的异质性,通常在手臂变异中没有差异.
结论:
- eHTE为临床试验提供了有价值的结果指标,独立于群体级中心趋势.
- 对于药物开发人员,临床医生和患者来说,eHTE方法为药物疗效变化提供了关键的见解.
- 这种方法有助于在临床研究中更好地理解和报告治疗效应.
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