处理方法对Posaconazole无形固体分散物的物理化学性质的影响
Ru He1, Matthew S Lamm1, Andrew Brunskill1
1Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07065, USA.
Pharmaceutical research
|December 1, 2023
概括
与热挤出相比,喷雾干燥产生的Posaconazole无形固体分散 (ASD) 的化学稳定性较低. 然而,所有ASD都表现出类似的溶解和超和行为,无论处理方法如何.
科学领域:
- 制药科学 制药科学
- 材料科学 材料科学 材料科学
背景情况:
- 无形固体分散 (ASD) 对于提高水溶性较差的药物的可溶性至关重要.
- 处理方法显著影响ASD特性,但它们对药物的稳定性和溶解的影响需要进一步调查.
研究的目的:
- 通过热挤出 (HME) 和两种喷雾干燥技术生产的Posaconazole (Posa) ASDs的化学和物理稳定性进行比较.
- 评估加工方法对Posa ASDs超和和溶解行为的影响.
主要方法:
- 使用HME和两个喷雾干燥机 (Procept和Nano Sprayer) 准备Posa ASDs (25%的药物负载).
- 评估热和晶体API播种下的物理稳定性.
- 在加速条件下评估化学稳定性 (40°C/75%RH).
- 对超和感应和脱超和动学的分析.
主要成果:
- 物理稳定性顺序:ASD-纳米 > ASD-模型 ≈ HME.
- 化学稳定性:HME ASD在加速条件下比喷雾干燥的ASD更稳定.
- 所有ASD都表现出相似的超和感应时间和脱超和动力学,无论加工方法或晶体种子的存在.
结论:
- 喷雾干燥的Posa ASDs显示出较低的化学稳定性,这是由于粒子尺寸较小和空洞结构促进氧气透.
- 在种子诱导的研究中,在ASD-Procept和HME ASD中观察到再结晶和固态阶段过渡.
- 剩余纳米晶没有显著影响不同ASD的溶解或超和-沉动力学.
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