重视生物制药分类系统IIB药物的超和:通过多杯溶解方法和分子动态模拟进行评估
Yanxiong Gan1, Yaxin Xu1, Xue Zhang2,3
1School of Intelligent Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Molecules (Basel, Switzerland)
|October 14, 2023
概括
使用动态胃肠道模型 (DGIM) 的新溶解方法改善了基本药物的超和评估 (BCS IIB). 这种方法增强了可纳配方的体外-体内相关性 (IVIVC),有助于药物开发.
科学领域:
- 制药科学 制药科学
- 药物输送系统 药物输送系统
- 生物制药生物制药公司
背景情况:
- 生物制药分类系统 (BCS) 的IIB类药物表现出pH依赖的可溶性和超和,使体外与体内相关性 (IVIVC) 复杂化.
- 凯托可纳是一种BCSIIB药物,由于其溶解性和沉特性在胃肠道中,在配方方面存在挑战.
- 现有的溶解方法往往无法充分预测BCS IIB药物的体内性能,因此需要先进的评估技术.
研究的目的:
- 开发一种基于生理学的多杯溶解方法,即动态胃肠道模型 (DGIM),以提高BCS IIB药物的超和评估.
- 调查基托可纳超和和沉抑制的分子机制,由聚乙烯基酸乙烯合聚合物 (PVPVA) 和基甲基纤维素 (HPMC).
- 提高药物配方研究中体外-体内相关性 (IVIVC) 的质量和预测准确度.
主要方法:
- 开发和应用具有多个溶解杯的动态胃肠道模型 (DGIM),以模拟胃肠道过境.
- 使用光纤探针量化DGIM中可纳的度.
- 使用材料工作室进行分子建模模拟,以探索可纳和聚合物 (PVPVA,HPMC) 之间的相互作用.
主要成果:
- 无论是PVPVA还是HPMC都有效地改善并维持了可纳的超和.
- PVPVA证明了较强的沉抑制可纳聚合,这归因于更强的范德瓦尔斯力和独特的静电力.
- 根据DGIM的方法,IVIVC得到了显著的改进,平均预测误差从19.30%降至9.96%,符合资格标准.
结论:
- 基于生理学的多杯溶解方法 (DGIM) 为BCS IIB药物如可纳提供了对超和的优越评估.
- 这种方法促进了沉抑制剂的选,并促进了用于制药配方的合格IVIVC的开发.
- 了解分子相互作用有助于设计具有pH依赖溶解度的药物的有效配方.
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