在实验室中对Poly ((D,L-lactide-co-glycolide) In Situ凝的评估以及在小鼠皮下注射后的药理动力学,用于模型药物
Sandy Van Hemelryck1, Charlotte Vercammen1,2, Eline Seldeslachts1,2
1Clinical Pharmacology and Pharmacometrics, Johnson & Johnson, Turnhoutseweg 30, 2340 Beerse, Belgium.
这项研究表明药物特性和配方变量如何影响in vitro药物释放从in situ凝 (ISG) 长效注射剂 (LAI). 它还建立了一个 in vitro-in vivo 相对应 (IVIVC) 赛莱科西布ISGs,帮助LAI的发展.
科学领域:
- 制药科学 制药科学
- 药物输送系统 药物输送系统
- 生物材料是一种生物材料.
背景情况:
- 长效注射剂 (LAI) 对于改善患者的服药性至关重要.
- 现场凝 (ISG) 技术为发展 LAI 提供了一个有前途的方法.
- 了解药物释放动力学和建立体外-体内相关性 (IVIVC) 对LAI配方开发至关重要.
研究的目的:
- 调查药物特性和配方变量对ISG体外药物释放 (IVR) 的影响.
- 开发一个点对点的IVIVC,用于塞莱科西布装载的ISG.
- 支持使用ISG技术开发有效的LAI配方.
主要方法:
- 从ISG中评估了五种模型药物的IVR (白醇,西奥菲林,费尔比纳克,印莫他辛,切莱科西布),使用两种多D,L-乳-co-glycolide (PLGA) 等级 (50:50和85:15 L/G比).
- 不同的聚合物/溶剂比率 (30/70%和40/60%w/wNMP) 来评估配方效应.
- 建立了一个点对点IVIVC,用于小鼠中的赛莱科西布ISG,通过将被吸收的解离衍生分数与溶解的体外分数相关联.
主要成果:
- 观察到持续的IVR,释放时间因药物的溶解性和配方而异.
- 随着聚合物脂友性和度的下降以及药物溶解度的增加,IVR率增加.
- 一个点对点IVIVC成功地建立了celecoxibISGs,证明了从体外数据中预测体内性能的可预测性.
结论:
- 药物溶解度,聚合物等级和度显著影响ISG IVR速率.
- 开发的点对点IVIVC为切莱科西布ISG提供了一个宝贵的工具,用于优化配方.
- 这项研究支持合理设计和开发利用ISG技术的LAI.
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