基于生理学的药理动力学建模,以预测孕期孕产妇的药理动力学和胎儿对卡巴马西平的暴露
Yuying Chen1, Meng Ke1, Weipeng Fang1
1Department of Pharmacy, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong M. Rd, Fuzhou 350005, People's Republic of China; Department of Pharmacy, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China.
在怀孕期间使用卡巴马齐平的生理学基础的药理动力学 (PBPK) 模型显示,怀孕期间药物度下降. 建议在第一,第二和第三季度分别调整1.4x,1.8x和2.1x的剂量.
科学领域:
- 药理动力学 药理动力学
- 药理学 药理学是指药理学的学科.
- 药物新陈代谢 药物新陈代谢
背景情况:
- 卡巴马泽平是一种重要的抗药物,经常被处方给孕妇.
- 怀孕引起的生理变化可以显著改变药物的疗效和药理动力学.
- 在怀孕期间了解卡巴马西平的药理动力学对于优化孕产妇和胎儿的结果至关重要.
研究的目的:
- 开发和验证卡巴马西平及其活性代谢物卡巴马西平-10,11-氧化物的一种生理学基础的药理动力学 (PBPK) 模型.
- 模拟和分析不同孕期的孕产妇和胎儿的药理动力学变化.
- 在怀孕期间提出基于证据的卡巴马西平剂量调整建议.
主要方法:
- 使用PK-Sim®和Mobi®软件的卡巴马西平和卡巴马西平-10,11-环氧化物的已确立妊娠PBPK模型.
- 根据观察到的临床数据和胎盘转移参数验证的PBPK模型.
- 在整个怀孕期间模拟的卡巴马泽平和卡巴马泽平-10,11-氧化物药理学.
主要成果:
- 在第一,第二和第三个三个月内,模拟平均稳定状态最低度的卡巴马西平在血中分别下降了27%,43.1%和52%.
- 计算剂量调整建议在第一,第二和第三季度给出1.4倍,1.8倍和2.1倍的基线卡巴马西平剂量,以维持治疗水平.
- 建立了经过验证的胎儿药物动力学曲线,提供了对胎儿暴露的见解.
结论:
- 已成功开发了一种可验证的妊娠PBPK模型,用于卡巴马西平及其环氧化代谢物.
- 该模型准确地预测了怀孕期间的药理动力学变化,有助于剂量优化.
- 这些发现为调整孕妇卡巴马西平剂量和评估胎儿暴露提供了关键的参考.
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