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综合盐选择和配方优化:不成比例和微环境pH调节的前景
Shikhar Mohan1, Yi Li1, Kevin Chu2
1Gilead Sciences, Inc., Foster City, California 94404, United States.
Molecular pharmaceutics
|April 24, 2024
概括
这项研究引入了酸作为一种新的pH值修饰剂,以防止药物盐在药片配方中的不成比例. 这种方法通过在吸收过程中稳定配方来提高药物的溶解性和生物可用性.
科学领域:
- 制药科学 制药科学
- 药物运输 药物运输 药物运输
- 物理化学 物理化学
背景情况:
- 药物的生物可用性通常受到溶解性差的限制,因此需要提高溶解性的策略.
- 药物盐不成比例会导致吸收过程中溶解度显著下降,影响生物可用性.
- 对于某些具有生物可用性挑战的药物分子,存在有限的盐和共晶选择.
研究的目的:
- 为了研究pH值修饰剂在药片配方中作为不成比例减缓剂的使用.
- 提高面临不成比例风险的药物分子的溶解性和生物可用性.
- 开发一种创新的风险减轻策略,用于制药配方中的盐不成比例.
主要方法:
- 利用拉曼光谱与化学测量和定量X射线衍射进行应力测试.
- 在受控压力条件下研究了不成比例现象.
- 在药片配方中使用酸作为微环境pH调节剂.
主要成果:
- 酸在预防高风险 (HCl) 和中等风险 (男性) 场景不成比例方面表现出协同优势.
- 烟酸与不成比例时释放的自由基的相互作用形成了更容易溶解的半酸盐物种.
- 这种半酸盐的形成有助于保持药物的可溶性升高,缓解了"降落"阶段的可溶性下降.
结论:
- 报道了一种新的pH值修饰剂 (酸) 作为药片配方中不成比例减缓剂的使用.
- 这种方法有效地调解了药物吸收过程中溶解度的下降,为盐不成比例提供了潜在的降低风险的策略.
- 这些发现表明,使用综合辅助剂的创新技术可以提高药物的溶解性和生物可用性.
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