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怀孕期间埃斯基塔洛普拉姆剂量优化:一个PBPK建模方法
Seo-Yeon Choi1, Eunsol Yang2, Kwang-Hee Shin1,3
1Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu 41566, Republic of Korea.
这项研究使用了基于生理学的药理动力学 (PBPK) 建模来预测孕妇和胎儿的埃斯基塔洛普拉姆暴露. 建议在怀孕期间服用20毫克的每日剂量是最优的,考虑到妊娠阶段和CYP2C19代谢.
科学领域:
- 药理动力学和药物新陈代谢
- 生殖毒理学 生殖毒理学
- 计算药理学计算药理学
背景情况:
- 埃斯基塔洛普拉姆是一种常见的抗抑郁药,主要通过CYP2C19.9代谢.
- 怀孕显著改变药物的药理动力学,影响母亲和胎儿的暴露.
- 了解孕期埃斯基塔洛普拉姆的行为对于安全有效的治疗至关重要.
研究的目的:
- 使用PBPK建模预测怀孕期间母亲和胎儿暴露于埃斯基塔洛普拉姆.
- 开发基于证据的,安全的,有效的艾斯基塔洛普拉姆在怀孕期间的剂量策略.
- 为了研究CYP2C19表型对怀孕期间埃斯基塔洛普拉姆药理动学的影响.
主要方法:
- 在非孕妇和孕妇中开发预测性PBPK模型,以及胎盘单元.
- 利用Simcyp®模拟器进行模型构建,结合CYP2C19表型.
- 通过视觉预测检查和预测与观察的Cmax和AUC比率的比较来验证模型.
主要成果:
- 埃斯基塔洛普拉姆度随着妊娠年龄的增加而下降,对于10-20毫克的剂量.
- 带与母体度的比率始终在0.70.0左右.
- 跨CYP2C19表型的模拟表明预测和观察到的度之间有很好的一致性.
结论:
- 每天服用一次20毫克的埃斯基塔洛普拉姆剂量预计在怀孕期间是最佳的.
- 妊娠阶段和个体CYP2C19代谢状态是优化埃斯基塔洛普拉姆剂量的关键因素.
- PBPK建模为指导怀孕人口服用抗抑郁药物提供了有价值的工具.
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