使用脂解和透测定方法开发和描述基于固体脂质的利托纳维尔配方 (sLBFs)
Arne Schulzen1, Ioannis I Andreadis2, Christel A S Bergström3
1Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University, Universitätsstraße 1, DE-40225, Düsseldorf, Germany.
概括
基于固体脂质的配方 (sLBFs) 显著提高了利托纳维尔的溶解性和透性. 配方成分影响了溶解度,但不影响沉率或透率,突出显示了基于脂质的配方 (LBF) 的结合脂解-透试验的重要性.
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:
- 许多活性药物成分 (API) 溶解不良 (BCS II和IV类),需要提高生物可用性.
- 基于脂质的配方 (LBFs) 有效提高溶解性和透性,通常使用液体脂质,辅溶剂和表面活性剂.
- 固体LBF (sLBF) 提供了替代的输送方法,但它们在提高溶解性和透性的有效性需要研究.
研究的目的:
- 评价里托纳维尔载体固体LBFs (sLBFs) 提高可溶性和透性的能力.
- 研究聚合物沉抑制剂 (PVP-VA,HPMC-AS) 对脂解诱导的超和沉的影响.
- 评估配方成分,脂解,透和药物释放概况之间的相关性.
主要方法:
- 用不同的脂质和表面活性剂度制备里托纳维尔装载的sLBF.
- 在体外评估使用单阶段肠道消化和用莱西丁在多德干 (LiDo) 膜进行双分区透研究.
- 分析不同配方的利托纳维尔溶解度,降水率和透流量.
主要成果:
- 所有的sLBFs在脂解和透过程中显示出与纯里托纳维尔相比,里托纳维尔溶解度显著增加 (5至>20倍).
- 结合的脂解-透研究显示,里托纳维尔度增加了15倍,配方里托纳维尔的流量高达71% .
- 虽然较高的表面活性剂含量增加了溶解度,但配方成分并没有显著影响降水率或透流量.
结论:
- 固体LBF有效地增强了里托纳维尔的溶解性和透性,验证了它们用于难以溶解的药物的使用.
- 聚合物沉抑制剂在脂解过程中管理沉时没有提供显著的益处.
- 该研究强调了使用结合脂解-透试验的重要性,以准确评估LBF性能,因为释放配置文件与透流量没有直接相关.
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