PROTAC 启用配方:聚合物载体 Eudragit EPO 的影响
Nicole Hofmann1,2, Florian Johann1, Katharina Krollik1
1Global Drug Product Development, Orals Development, the Healthcare Business of Merck KGaA, Frankfurter Straße 250, Darmstadt 64293, Germany.
Molecular pharmaceutics
|August 24, 2025
概括
射干燥的蛋白质溶解向模拟体 (PROTACs) 的分散体在体内暴露较差. 配方性能取决于胆汁盐和脂,影响PROTAC的溶解和稳定.
科学领域:
- 制药科学
- 提供药物
- 药物动力学
背景情况:
- 针对蛋白质溶解的仿真体 (PROTACs) 为"无法药物治疗"的目标提供了新的治疗策略.
- 由于PROTAC的溶解性和生物可用性较差,因此需要先进的配方方法.
- 在药物动力学研究中,PROTACs的启用配方仍未得到充分研究.
研究的目的:
- 在体内评估与Eudragit PO (EPO) 的模拟PROTAC (MS4078) 无形喷雾干燥分散剂 (SDD) 的药理学性能.
- 在生理条件下研究SDD和溶液配方的体外超和沉行为.
- 阐明胆汁盐和脂在PROTAC配方中的作用.
主要方法:
- 开发MS4078和EPO的无形喷雾干燥分散剂 (SDD).
- 在小鼠体内进行的药理动力学研究,比较SDD和溶液配方.
- 使用模拟生理条件的介质进行体外两阶段沉试验,其中胆盐和脂度各不相同.
主要成果:
- 在体内,SDD和溶液配方均呈现出意想不到的低暴露率.
- 在体外,溶液载体作为可溶性增强剂.
- 该SDD显示复杂的溶解形状取决于胆盐和脂度,表明涉及EPO,胆盐和脂的相互作用和相分离.
结论:
- 特别是含有EPO的PROTAC配方的体外性能受到胆汁盐和脂的相互作用的显著影响.
- 这些相互作用可能导致相分离,影响PROTAC溶解和稳定.
- 这些发现强调了在设计PROTAC配方和药理动力学研究时考虑生理脂质和胆盐度的重要性.
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