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药物负载对含有表面活性剂的无形固体分散物的溶解行为和稳定性的影响
Dijia Liu1, Shu Li1, David S Jones1
1Pharmaceutical Engineering Group, School of Pharmacy, Queen's University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom.
International journal of pharmaceutics
|February 13, 2026
概括
药物负载影响无形固体的分散稳定性和溶解. 三级系统的稳定性较差,溶解下降速度比二级系统更快,药物负载较高.
科学领域:
- 制药技术 制药技术 制药技术
- 材料科学 材料科学 材料科学
背景情况:
- 无形固体分散 (ASDs) 增强了溶解度不佳的药物,如 lumefantrine (LUM) 的溶解度.
- Soluplus®和Kolliphor® RH40用于提高ASD的可溶性和维持超和.
研究的目的:
- 为了研究药物负载 (DL) 对二元 (BASDs) 和三元 (TASDs) 无形固体分散的物理稳定性,溶解和微粒化的影响.
- 为了评估Soluplus®和Kolliphor® RH40在不同药物负载的明氨酸ASD中的作用.
主要方法:
- 热挤出 (HME) 用于生产BASD和TASD,药物负载为10-50%.
- 粉末X射线衍射 (P-XRD) 和差分扫描热量计 (DSC) 用于物理稳定性的评估.
- 溶解测试和动态光散射 (DLS) 用于性能和化行为分析.
主要成果:
- 三级ASDs (TASDs) 呈现较低的玻璃过渡温度 (Tg) 和较差的物理稳定性比二级ASDs (BASDs),特别是在更高的药物负载 (DL).
- 在BASD和TASD中,溶解性能通常随着DL的增加而下降. 在较低的DL (≤20%) 时,TASD表现更好,但在较高的DL (≥30%) 时显著下降.
- 在ASD中较高的DL导致溶解过程中较大,不那么均的细胞,与减少药物释放相关. 添加Kolliphor® RH40可能会干扰Soluplus®的化.
结论:
- 药物负载显著影响着 lumefantrine ASDs 的物理稳定性和溶解.
- 含有Kolliphor® RH40的三级系统对增加的药物负载更敏感,导致性能下降.
- 存在关键药物负载值,需要对含有表面活性剂的ASD进行仔细的配方设计,特别是对高剂量药物.
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