使用PBPK-GSA方法分析驱动吸收年龄相关变化的参数影响
Donnia Robins1, Andreas Lehmann2, Katharina Krollik2
1Global Drug Product Development, Global CMC Development, Merck KGaA, Frankfurter Straße 250, Darmstadt, Germany; Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece.
以生理学为基础的药理动力学 (PBPK) 模型得到了全球灵敏度分析的增强,以评估与年龄相关的吸收变化. 这种方法改善了对老年人群药物安全性的风险分析.
科学领域:
- 药理动力学和药物开发
- 老年人药理学 老年人药理学
- 计算建模 计算建模
背景情况:
- 老年人面临更高的药物副作用的风险,原因是药物动力学变化,特别是吸收.
- 数据有限和高可变性使得理解老年人药物吸收变化变得复杂.
- 基于生理学的药理动力学 (PBPK) 模型为研究老年人等特殊人群提供了优势.
研究的目的:
- 将全球敏感性分析与PBPK模型整合起来,以描述与年龄相关的吸收变化.
- 评估与年龄相关的吸收变异对药物药理动学的影响.
- 改进在老年人群中口服药物剂量的风险评估.
主要方法:
- 使用PK-Sim®开发了基于生理学的药理动力学 (PBPK) 模型.
- 全球灵敏度分析,特别是基本效应 (莫里斯) 方法,在R.中实施.
- 来自生物制药分类系统I-III类的三种药物与三种与年龄相关的假设进行了测试.
主要成果:
- 成功地将全球敏感性分析与与年龄相关吸收的PBPK模型集成.
- 证明了莫里斯方法在PBPK模型中评估参数相互作用的实用性.
- 量化了与年龄相关的吸收变化对特定药物的药理动学的影响.
结论:
- 全球敏感性分析为PBPK模型在特殊人群中的风险评估提供了强大的方法.
- 这种综合方法增强了与年龄相关的药物动力学变异性的特征.
- 改进的PBPK建模可以更好地预测和减轻老年人与药物相关的风险.
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