探索发育清除和对成人和期内新生儿烯糖醇暴露的影响,使用生理学基础的药物动力学建模
Olusola Olafuyi1, Robin Michelet2,3, Michael Garle1
1Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, University of Nottingham, Nottingham, UK.
Journal of clinical pharmacology
|October 15, 2024
概括
当酒精脱酶 (ADH) 途径和时,烯基醇 (PG) 积累和毒性可能发生. 这项研究开发了模型,以根据剂量预测成人和新生儿的PG清除和毒性.
科学领域:
- 药理动力学和药物新陈代谢
- 毒理学 毒理学 毒理学
- 制药科学 制药科学
背景情况:
- 二醇 (PG) 是一种常见的药物辅助剂,具有普遍公认的安全 (GRAS) 状态.
- 临床毒性病例表明PG积累是由于酒精脱酶 (ADH) 介导代谢的和造成的.
- 了解PG清除和对于安全的药物配方和管理至关重要.
研究的目的:
- 研究ADH介导的PG代谢和对成人和新生儿发育清除的影响.
- 评估不同剂量如何影响PG清除和和潜在的毒性.
- 为不同年龄组确定PG的安全剂量范围.
主要方法:
- 开发生理学基础的药理动力学 (PBPK) 模型,用于成人和终期新生儿的PG.
- 在人肝细胞醇中以ADH为媒介的PG代谢的Vmax和Km的体外测定.
- 验证PBPK模型和模拟剂量方案,以预测清除和毒性.
主要成果:
- 对PG代谢的Vmax和Km分别确定为1.57nmol/min/mg蛋白和25.1mM.
- 开发的PBPK模型准确地预测了成人和新生儿的PG药理学概况.
- 观察到剂量依赖的和和毒性,和发生在比临床毒性更高的剂量时.
结论:
- PG清除和毒性受到剂量量和剂量频率的影响.
- 没有可能导致和或毒性的安全每日PG剂量估计为成年人每天100-200毫克/公斤,新生儿每天25-50毫克/公斤.
- 这些发现有助于优化PG在制药配方中的使用,以防止不良事件.
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