达沙替尼和索拉芬尼的增强生物可用性和减少变异性,采用一种新型无形固体分散技术平台
Hans Lennernäs1, Magnus Brisander2, Charlotta Liljebris2
1Department of Pharmaceutical Biosciences, Translational Drug Discovery and Development, Uppsala University, Uppsala, Sweden.
Clinical pharmacology in drug development
|May 29, 2024
概括
一种新的纳米粒子形态固体分散 (ASD) 技术改善了口服蛋白激酶抑制剂 (PKI) 的吸收,并降低了可变性. 这种配方增强了达沙替尼和索拉费尼布等药物的生物可用性和一致性.
科学领域:
- 制药技术 制药技术 制药技术
- 药物输送系统 药物输送系统
- 药理动力学 药理动力学
背景情况:
- 蛋白激酶抑制剂 (PKIs) 的口服通常会导致可变的血暴露和狭窄的治疗窗口.
- 开发先进的配方对于优化PKI疗效和安全至关重要.
研究的目的:
- 开发和评估一种新的混合纳米粒子-无形固体分散 (ASD) 技术平台,用于口服PKI.
- 为了提高吸收性质并减少达沙替尼和索拉芬尼配方的药理动力学 (PK) 变异性.
主要方法:
- 使用纳米粒子ASD技术制造的达沙替尼 (XS004) 和索拉芬尼 (XS005) 立即释放配方.
- 在XS004和XS005的体外溶解度和体内PK概况与它们的晶体参考药物进行了比较.
- 评估的参数包括吸收,生物可用性和人体内/人体间的可变性.
主要成果:
- 在体外研究表明,达沙替尼-ASD和XS005-颗粒物在广泛的pH范围 (1.2-8.0) 中具有持续增加的溶解性.
- 在体内,XS004在30%较低的剂量下表现出生物等价性,具有增强的吸收,生物可用性和显著降低的PK变异性 (降低了2.1-4.8倍).
- XS005的吸收率增加 (45%) 和生物可用性降低 (2.2-2.8倍低),但在测试剂量下没有生物等价性.
结论:
- 混合纳米粒子-ASD技术平台有效地提高了PKI的口服吸收和生物可用性.
- 这种配方方法显著降低了PK变异性,导致更一致的药物暴露.
- 该技术为开发改进的PKI配方提供了有希望的策略,其降低了依赖pH的吸收特性.
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