泰尔瓦洛辛酸盐的特征 通过液体分层制备的肠道无形颗粒
Haoran Wang1, Lin Han1, Han Zeng1
1Department of Pharmaceutics Science, Shenyang Pharmaceutical University, Shenyang, 110016, China.
Pharmaceutical research
|January 28, 2025
概括
新的肠无形颗粒 (TAT/EAP-LL) 通过保护其在胃中并将其释放到十二指肠中,改善了泰尔瓦洛素酸盐 (TAT) 的口服输送. 这种配方增强了TAT的生物可用性和稳定性,以获得更好的治疗结果.
科学领域:
- 制药科学 制药科学
- 药物输送系统 药物输送系统
- 宏类抗生素 宏类抗生素
背景情况:
- 泰尔瓦洛素酸盐 (TAT) 由于胃部的降解和快速排泄,具有较差的口服生物利用性.
- 开发有效的口服配方对于提高TAT的治疗效果至关重要.
研究的目的:
- 通过液体分层 (TAT/EAP-LL) 来开发泰尔瓦洛辛酸肠道无形颗粒.
- 为了实现pH敏感和突发释放特征,提高胃稳定性和十二指肠药物度.
- 为了提高TAT的口服生物可用性.
主要方法:
- TAT/EAP-LL是使用液体分层制备的,以形成无形固体分散.
- 描述涉及差分扫描热量计 (DSC),粉末X射线衍射 (PXRD) 和极化光显微镜 (PLM).
- 实验室药物释放研究在pH值1.0和pH值6.8.8下进行. 在体内药理动力学研究将TAT/EAP-LL与商业配方进行比较.
主要成果:
- 在pH值1.0时,TAT/EAP-LL的释放最小,在pH值6.8时,在15分钟内迅速完全释放.
- 在颗粒中成功地形成了TAT的无形固体分散.
- 与商业配方相比,TAT/EAP-LL的口服生物可用性显著增加了1.71倍.
结论:
- TAT/EAP-LL提供了一个新的平台,用于增强Tylvalosin Tartrate的口服输送.
- 开发的配方策略对于脉动性药物输送是有效的.
- 这种方法为克服TAT的生物可用性挑战提供了一个有希望的解决方案.
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