通过使用生理学基础的药物动力学模型研究硫转移酶介导的乙inylestradiol的药物相互作用
Harry P Moore1, Kuan-Fu Chen2, Aki T Heikkinen2
1Certara Predictive Technologies, Level 2-Acero, 1 Concourse Way, Sheffield, S1 2BJ, Sheffield, UK. harry.moore@certara.com.
The AAPS journal
|November 4, 2025
概括
这项研究扩展了药理动力学模型,以预测与乙烯乙醇 (EE) 和其主要代谢酶SULT1E1.1.的药物相互作用. 模拟表明与齐里塔克斯塔特的潜在相互作用,但不是埃托里可西布.
科学领域:
- 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
- 药理动力学 药理动力学
背景情况:
- 乙inylestradiol (EE) 是组合口服避孕药中的一个关键成分.
- CYP3A4和SULT1E1是代谢EE的主要酶;DDI可以影响EE的有效性和安全性.
- 现有的生理学基础的药理动力学 (PBPK) 模型预测CYP3A4介导的EEDDI.
研究的目的:
- 扩展EE PBPK模型,以纳入SULT1E1代谢,用于预测SULT1E1介导的DDI.
- 为了模拟EE和SULT1E1抑制剂 etoricoxib和ziritaxestat之间的相互作用.
- 评估潜在的DDI的临床相关性,并为剂量调整提供信息.
主要方法:
- 为EE构建了一个PBPK模型,包括SULT代谢.
- 集成的EE PBPK模型与现有PBPK模型的埃托里可西布和齐里塔克斯塔特.
- 模拟EE暴露在各种联合使用场景下,并与观察到的数据进行比较.
主要成果:
- 观察到的EE度处于模拟的95%预测间隔内.
- 预测的Cmax和AUCt比率是观测数据的1.5倍之内.
- 临床上相关的DDI不太可能与埃托利可西布发生,但可能与齐里塔克斯塔特发生,可能需要减少EE剂量.
结论:
- 扩展的PBPK模型准确地预测了EE暴露与SULT1E1抑制剂.
- 该模型表明,齐里塔克斯塔特可能会导致与EE相关的临床相关的DDI,与埃托利可西布不同.
- 纳入SULT代谢增强了对影响多个EE途径的药物的DDI评估.
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