四级化合物的食物和胆汁微粒结合
Takeru Sumiji1, Kiyohiko Sugano1
1Molecular Pharmaceutics Lab., College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1, Noji-higashi, Kusatsu, Shiga 525-8577, Japan.
ADMET & DMPK
|October 13, 2023
概括
食物摄入量显著降低了四级化合物 (QACs) 的口服吸收,因为它们与胆汁和食物成分结合. 这项研究研究了QAC药物的这种负面食物效应机制.
科学领域:
- 药理动力学 药理动力学
- 药物代谢和药物相互作用
- 生物制药生物制药公司
背景情况:
- 基于生理学的生物制药建模 (PBBM) 对于预测口服药物吸收至关重要.
- 预测食物对药物吸收的负面影响,特别是四级化合物 (QAC),仍然是一个挑战.
- 质量控制系统观察到的显著负面食品影响的潜在机制尚不清楚.
研究的目的:
- 调查胆和食品结合在QACs口服吸收的负面食物影响中的作用.
- 阐明与食物一起服用时QACs口服生物可用性降低背后的机制.
主要方法:
- 选择了 (TRS), (PPT) 和 (AMB) 作为模型QAC药物.
- 使用了空腹和食状态模拟肠液 (FaSSIF/FeSSIF),包括和没有FDA早餐同质化剂 (BFH).
- 使用动态透析测量了QACs的未结合分数 (fu).
主要成果:
- 对TRS,PPT和AMB的未结合分数比率 (FeSSIF/FaSSIF) 分别为0.67,0.47和0.76.
- 将BFH添加到FeSSIF进一步减少了未结合的分数,达到0.39 (TRS),0.28 (PPT) 和0.59 (AMB).
结论:
- 胆和食物结合是对QAC口服吸收的负面食物影响的重要贡献者.
- 了解这些相互作用是改善药物配方和预测体内性能的关键.
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