在溶解条件下量化分子溶解药物度的高通量微量化工作流
Florentin Lukas Holzem1, Rasmus Lind Mikkelsen2, Jeannine Petrig Schaffland3
1Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark; Pharmaceutical R&D, F. Hoffmann-La Roche Ltd., 4070 Basel, Switzerland.
Journal of pharmaceutical sciences
|December 27, 2024
概括
一种新的微量测定方法准确量化了溶解剂中的未结合药物度. 这种比较微量质量转移试验 (CMMTA) 为早期药物开发提供了快速选工具.
科学领域:
- 药理动力学 药理动力学
- 药物发现 药物发现 药物发现
- 分析化学 分析化学
背景情况:
- 溶解剂增强药物的溶解性,但可以通过减少未结合的药物分数来减少口服暴露.
- 精确测量分子溶解药物度至关重要,但在实验上具有挑战性.
- 目前用于确定自由药物度的现有方法复杂且耗时.
研究的目的:
- 开发一个微尺度的体外工作流程,比较微尺度质量转移试验 (CMMTA),用于量化未结合药物度.
- 建立一个快速有效的查工具,用于早期药物开发.
主要方法:
- 开发了一种96井微位板测定 (PermeaPlainTM) 以将被动药物透与供体缓冲度相关联.
- 测量了模拟肠液 (FaSSIF和FeSSIF) 中微粒溶液的药物透率.
- 使用已确定的相关性,并与平衡透析和微透析进行验证,获得未结合的药物度.
主要成果:
- 建立了riluzole透率与其在缓冲中的度之间的线性相关性.
- 通过使用CMMTA成功量化分子溶解药物度在微粒溶液中.
- 证明CMMTA可以在几个小时内在各种溶解条件下同时确定标准曲线和样品.
- 经验证的CMMTA结果与已建立的无毒药物度测量方法相比.
结论:
- 在CMMTA工作流程中,在有溶解剂的情况下,准确量化未结合药物度.
- CMMTA为早期药物开发提供了一种快速,微规模和具有成本效益的查工具.
- 这种测定有助于更好地预测受化影响的口服药物吸收.
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