整合体外溶解和基于生理学的药物动力学建模用于通用药物开发:对塔克罗利木斯的无形固体分散配方的评估
Evangelos Karakitsios1, Maria-Faidra-Galini Angelerou2, Iasonas Kapralos1
1Department of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece.
Pharmaceutics
|February 26, 2025
概括
基于生理学的药理动力学 (PBPK) 建模准确预测了无形固体分散 (ASD) 配方的塔克罗利斯 (Prograf) 药理动力学. 这有助于通过评估生物预测溶解方法来开发仿制药.
科学领域:
- 药理动力学和药物开发
- 生物制药和配方科学 生物制药和配方科学
背景情况:
- 塔克罗利斯是生物制药分类系统 (BCS) 的II类药物,需要提高移植患者的生物可用性.
- 无形固体分散 (ASD) 配方正在开发,以提高塔克罗利斯的生物可用性.
- 内部USP IV溶解方法用于研究ASD配方的释放特性.
研究的目的:
- 为了评估无形固体分散 (ASD) tacrolimus配方.
- 在试点生物等价性研究中,将测试配方的药理动力学 (PK) 与Advagraf®进行比较.
- 验证和应用一种基于生理学的药理动力学 (PBPK) 模型,用于预测塔克罗利斯ASD配方的人类药理动力学.
主要方法:
- 与12名健康受试者进行的试点临床生物等价性研究,比较测试产品和Advagraf®.
- 使用体内数据验证已发表的塔克罗利斯PBPK模型.
- 应用PBPK模型来预测各种塔克罗利斯ASD配方的PK,包括溶解概况分析和溶解有限溶解 (DLM) 方法.
主要成果:
- 两种PBPK方法 (直接溶解配置集成和DLM) 都准确地预测了Cmax和Tmax.
- 溶解形状方法略低估计了AUC,而DLM方法足够预测了AUC.
- 灵敏度分析改进DLM标量器优化了PK参数预测.
- 配方成分,像Eudragit-S100一样,显著影响了溶解和生物可用性,正如PBPK所预测的那样.
结论:
- 确定了影响塔克罗利斯ASD配方性能的关键因素.
- PBPK建模对于早期的仿制药开发至关重要,简化了对生物预测溶解方法的评估.
- 从定性,定量和制造方面的洞察力有助于仿制药的开发.
相关概念视频
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