机器学习和机械建模的应用,用于预测人体内静脉注射的药物动力学概况
Xuelian Jia1,2, Donato Teutonico3, Saroj Dhakal4
1Center for Biomedical Informatics and Genomics, Tulane University, New Orleans, Louisiana 70112, United States.
Journal of medicinal chemistry
|March 27, 2025
概括
机器学习模型预测人类药理动力学 (PK) 用于药物发现. 这些数据驱动的方法提供了准确的预测,改善了早期药物查和设计.
科学领域:
- 药理学 药理学是指药理学的学科.
- 计算化学计算化学
- 药物发现 药物发现 药物发现
背景情况:
- 准确预测人类的药理动力学 (PK) 对于有效的药物发现至关重要.
- 传统的PK预测方法 (全米缩放,机械建模) 是资源密集型的,并且由于依赖于体外/体内数据,因此引发了道德问题.
- 机器学习 (ML) 提供了一个数据驱动的替代方案来克服这些局限性.
研究的目的:
- 开发和验证新的机器学习框架,用于预测人类的药理动力学特征.
- 利用一个全面的小分子物理化学和PK特性数据集,包括数字化的人类血度-时间概况.
- 提高药物发现管道中的早期分子查和设计.
主要方法:
- 从公开来源编制了大量的小分子物理化学和PK特性数据集.
- 数字化了大约800种化合物的人体血度-时间概况.
- 开发并应用了一种混合建模框架,将ML与基于生理学的药理动力学建模相结合.
- 使用了具有两个学习步骤的等级ML框架,用于直接PK概况估计.
主要成果:
- 开发的ML框架实现了对化合物的40-60%的预测精度为2倍,对化合物的80-90%,AUC和Cmax的预测精度为5倍.
- 这些模型在一组106种药物上得到了验证.
- 证明了数据驱动模型能够准确预测关键PK参数的能力.
结论:
- 拟议的混合和分层ML框架为预测人类药理动力学特征提供了准确和有效的方法.
- 这些数据驱动的方法可以显著提高药物发现的早期分子查和设计.
- 该研究提升了药物开发的计算能力,有可能降低成本和时间表.
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