开发多组件固体配方策略,以提高 PROTAC 解体效果
Martin A Screen1, Sean Askin2, James F McCabe3
1Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K.
Molecular pharmaceutics
|October 2, 2025
概括
无形固体分散 (ASDs) 增强了解向金马 (PROTACs) 的生物可用性,使其能够通过口服药物输送. 与其他配方相比,用泥制备的ASD显示出优越的可溶性增强和稳定性.
科学领域:
- 制药科学 制药科学
- 药物运输 药物运输 药物运输
- 药用化学 医学化学
背景情况:
- 蛋白质溶解向金马 (PROTACs) 是癌症的新疗法,但它们的溶解性差和无形性限制了生物利用性.
- 开发PROTACs的口服配方是具有挑战性的,因为它们的物理化学特性和有限的样本可用性.
研究的目的:
- 用基甲基纤维素酸 (HPMCAS) 来研究无形固体分散 (ASDs),以增强 PROTACs 的溶解和生物可用性.
- 为了比较配方策略,包括泥转化与溶剂蒸发,并评估物理稳定性.
主要方法:
- 用HPMCAS准备四个大脑招募的PROTAC (AZ1-4) 的ASD.
- 自闭症的特征,包括药物负载,超和,物理稳定性 (Tg,DSC,FTIR) 和溶解测试.
- 与同形配方和纯无形活性药物成分 (API) 的比较.
主要成果:
- 与纯无形API相比,AZ1的ASD显示药物超和的增加高达2倍.
- 用泥制备的ASD显示出更大的可溶性增强,并且在较高的药物负载下保持优势,而不是溶剂蒸发的ASD.
- 在加速条件下,ASDs表现出良好的物理稳定性,与缺乏溶解益处的同形配方不同.
结论:
- 自闭症是一种可行的策略,可以提高PROTAC的口服生物可用性,并创建可商业化的固体形式.
- 通过泥转换的配方优于溶剂蒸发来提高PROTAC的溶解性.
- 需要进行进一步的研究,以优化PROTACs等超出5规则 (bRo5) 化合物的配方方法.
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