随机临床试验设计的演变,以评估阿尔茨海默病的治疗方法
Etienne Aumont1,2, Joseph Therriault1,2, Angela T H Kwan1,3
1McGill University Research Centre for Studies in Aging, McGill University, Montréal, Quebec, Canada.
JAMA network open
|August 29, 2025
概括
阿尔茨海默病的临床试验规模和持续时间显著增加,并纳入了生物标志物证据. 这些不断发展的随机临床试验设计增强了检测新疗法的微妙治疗效果的能力.
科学领域:
- 神经学
- 临床试验方法
- 阿尔茨海默病的研究
背景情况:
- 最近阿尔茨海默病 (AD) 随机临床试验 (RCT) 的成功主要集中在抗粉样蛋白疗法上.
- 这一成功之前的ADRCT设计特征的演变不太清楚.
研究的目的:
- 在AD干预RCT中描述设计特征的时间演变.
- 分析随着时间的推移,样本大小,持续时间,目标人口,结果,资金和招生标准的变化.
主要方法:
- 在PubMed,Scopus和Web of Science系统搜索1992年至2024年间发表的第2期和第3期ADRCT.
- 纳入标准:AD干预,安慰剂或标准护理对照. 四位独立评估人员审查了研究特征.
- 使用线性回归和奇二测试对时间趋势的分析.
主要成果:
- 分析了203个涉及79589名参与者的ADRC.
- 平均样本大小增加了464% (第二阶段) 和50% (第三阶段). 平均试验持续时间增加了188% (第二阶段) 和256% (第三阶段).
- 生物标志物注册显著增加 (从2006年之前的2.7%到2019年后的52.6%). 抗粉素/抗的试验更多的是由行业资助的. 提高了RCT的透明度.
结论:
- 阿尔茨海默病的RCT已经大大发展,变得更大,更长.
- 这些变化提高了检测较小临床差异和治疗的微妙疗效的统计能力.
- 增加生物标志物的使用和提高透明度标志着AD临床试验方法的重大进展.
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