修改生物制药药物动力学,对口服药物吸收产生科学和监管影响
Nikolaos Alimpertis1,2, Athanasios A Tsekouras2,3, Panos Macheras4,5
1Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece.
Pharmaceutical research
|August 3, 2023
概括
有限吸收时间 (F.A.T.) 概念重新评估了经典的药物吸收模型,显示%吸收与时间曲线是双线的,而不是指数的. 这影响了生物制药和药物吸收分析的监管指南.
科学领域:
- 药物动力学和生物制药学
- 在药物开发中的数学建模.
背景情况:
- 药物吸收分析的经典瓦格纳-尼尔森和卢-里格曼方法假设无限的吸收时间.
- 自20世纪60年代以来,这些传统方法在生物制药和药物动力学中已成为标准.
- 最近开发的生理学上健全的有限吸收时间 (F.A.T.) 这个概念提供了一个新的视角.
研究的目的:
- 根据有限吸收时间 (F.A.T.) 重新评估瓦格纳-尼尔森和卢-里格尔曼方法. 一个概念,一个概念.
- 修改经典药物吸收方程以纳入有限的吸收时间.
- 探索F.A.T.的影响. 对于体外-体内相关性和药物动力学建模.
主要方法:
- 修改了随着时间的推移吸收药物的百分比的经典方程,以包括在FAT的吸收终止.
- 使用生理学基础的药理动力学有限时间 (PBFTK) 模型进行数学分析 (一或两部分).
- 开发一种基于计算机的方法来估计F.A.T.T. 根据实验数据.
主要成果:
- 修改后的%吸收与时间曲线是双线的,有一个上升的肢体在F.A.T.交叉横线.
- 一种基于计算机的F.A.T.的方法. 根据实验数据进行估计.
- 多个线性上升的肢体表明了多个吸收阶段; F.A.T. 估计与使用PBFTPK模型的非线性回归一致.
结论:
- 该研究挑战了生物制药中长期使用指数%吸收与时间曲线的长期使用.
- 这就是F.A.T. 这个概念为药物吸收分析提供了更生理合理的方法.
- 这些发现支持F.A.T.的整合. 进入药物吸收研究,监管指南,解卷技术和生物等价性研究.
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