在酸启动颗粒芯上分层的微环境pH调节的阿尔本达溶解
Kristina Vlahovic1, Miléna Lengyel1, Christian Fleck1
1Department of Pharmaceutics, Semmelweis University, Hőgyes E. Str. 7, 1092 Budapest, Hungary.
Pharmaceutics
|September 27, 2025
概括
葡萄酒酸颗粒 (TAP) 增强了阿尔本达 (ABZ) 在大肠结肠中的溶解性. 这种配方使用TAP作为核心,在更高的pH值水平下改善ABZ释放,以获得更好的治疗效果.
科学领域:
- 制药科学 制药科学
- 药物输送系统 药物输送系统
- 制定 发展 制定 发展
背景情况:
- 阿尔本达 (ABZ) 在较高的pH值下具有较低的溶解性,这限制了它对胆管结肠疾病的治疗疗效.
- 有机酸是弱基药物的有效pH调节剂,但必须防止它们在配方中过早释放.
- 葡萄糖酸颗粒 (TAP) 作为非漂水的pH调节芯提供了一个潜在的解决方案.
研究的目的:
- 为了证明100%酸颗粒 (TAP) 作为pH调节器芯的有效性,以提高阿尔本达 (ABZ) 溶解度.
- 开发使用TAP的多层涂层颗粒,以创建酸性微环境,以改善在更高pH值下ABZ释放.
主要方法:
- 多层涂层颗粒是使用酸颗粒 (TAP) 作为流化床装置中的启动芯制造的.
- 在TAP的药物分层之后,涂上了时间依赖和pH依赖的聚合物层.
- 进行了体外溶解研究,以评估ABZ释放概况和酸保留.
主要成果:
- 与惰性核心 (糖,MCC) 相比,酸基颗粒的阿尔本达 (ABZ) 释放显著增加.
- 葡萄酒酸 (TA) 在pH值为6.8的颗粒芯内保持,维持了ABZ溶解的酸性微环境.
- 结合的时间依赖和pH依赖涂层成功地防止了过早的ABZ释放,并保护了TAP.
结论:
- 百分之百的葡萄酸颗粒 (TAP) 作为有效的pH调节芯,可提高像阿尔本达 (ABZ) 等弱基本药物的可溶性.
- 开发的多层涂层策略确保局部酸度和受控的药物释放,提高ABZ在更高的肠道pH值的有效性.
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