在固体剂量形式的和桶排放中粉末流阻塞的风险应在活跃应激状态下预测制造
Karthik Salish1, Reto Maurer2, Chen Mao1
1Small Molecule Pharmaceutical Sciences, Genentech, Inc., South San Francisco, CA 94080, United States.
Journal of pharmaceutical sciences
|September 2, 2023
概括
准确预测粉末流阻塞需要测量主要的主应力 (σ1). 这项研究引入了一种新的模型,经过实验验证,以防止昂贵的制造问题,如形和拉索.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
- 制药制造业 制药制造业 制药制造业
背景情况:
- 粉末流动阻塞 (弧形,拉索) 是制药固体剂型制造中的一个重大风险.
- 目前基于流量函数系数的方法对于诊断这些流量问题是不可靠的.
- 准确预测排放过程中的粉末行为对于工艺效率和产品质量至关重要.
研究的目的:
- 确定用于准确预测粉末流阻塞所需的关键应力参数.
- 开发和验证一个全面的模型,用于预测排水管/容器排放中的流水阻塞风险.
- 评估积极与被动应激状态假设对药物粉末流量的适用性.
主要方法:
- 开发了一个模型来计算垃圾箱出口的应力条件,重点关注主要主应力 (σ1).
- 定义了流水阻塞的标准,即不受限制的度强度超过了促进粉末故障的应力.
- 通过使用10个粉末混合物和2个设备系统的/桶排放试验进行了实验验证.
主要成果:
- 主要主应力 (σ1) 对于准确预测粉末流通阻塞至关重要.
- 粉末更容易受到阻塞,当不受限制的收益率超过s1.1.
- 实验验证证了该模型在各种粉末和设备中的有效性.
结论:
- 积极应力状态假设对于预测由于高 σ1.1 的制药粉体流通阻塞至关重要.
- 使用被动应激状态可能会导致严重低估流阻塞风险.
- 假设被动应力状态的传统设计协议不适合用于制药粉末应用.
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