一个可解释的基于机器学习的现象映射策略,用于随机临床试验中的自适应预测丰富
Evangelos K Oikonomou1, Phyllis M Thangaraj1, Deepak L Bhatt2
1Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA.
机器学习通过预测患者的益处来优化临床试验招生. 这种适应性策略减少了试验规模,同时保持了治疗效果的准确性.
科学领域:
- 生物统计学 生物统计学
- 计算生物学 计算生物学
- 临床试验设计 临床试验设计
背景情况:
- 随机临床试验 (RCT) 对于以证据为基础的医学至关重要,但成本昂贵且耗时.
- 优化患者在RCT中的招生对于效率和及时结果至关重要.
研究的目的:
- 提出和评估机器学习 (ML) 策略,用于RCT中的自适应预测丰富.
- 为了提高RCT招生效率,使用计算试验现象图.
主要方法:
- 模拟组对两个心血管结局RCT (IRIS和SPRINT) 的顺序分析.
- 在中间分析期间构建动态表型表示以推断响应概况.
- 根据预测的个人福利,有条件的潜在候选人入学概率.
主要成果:
- 在ML策略中确定了动态的表型特征,可以预测跨临时分析的个性化心血管益处.
- 模拟显示最终试验大小的潜在减少:IRIS的14.8%,SPRINT的17.6%.
- 两个试验的模拟中保留了最初的平均治疗效果.
结论:
- 使用计算现象图的自适应式ML框架可以显著提高RCT招生效率.
- 这种方法有可能减少试验规模和资源需求,同时保持科学完整性.
- 预测性丰富策略为优化未来临床试验设计提供了一个有希望的途径.
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