在开发risdiplam治疗脊柱肌肉缩期间克服生物分析挑战
Katja Heinig1, Pawel Dzygiel1, Luca Ferrari1
1Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland.
Bioanalysis
|September 4, 2025
概括
用于脊髓肌缩 (SMA) 治疗的各种生物样本中测量risdiplam及其代谢物的生物分析方法. 这些方法克服了不稳定性和复杂矩阵等挑战,
科学领域:
- 生物分析化学
- 药物动力学
- 药物开发
背景情况:
- 里斯迪普兰是经批准的用于治疗脊柱肌肉缩 (SMA) 的小分子.
- 在多种生物基质中精确量化risdiplam对其发展至关重要.
- 现有的生物分析方法面临挑战,包括光敏感性,不稳定性,携带性,非特异性结合性和复杂组织分析.
研究的目的:
- 开发和验证强大的生物分析方法来测量risdiplam及其主要代谢物.
- 支持对risdiplam的监管提交和临床研究.
- 解决药物开发过程中遇到的特定生物分析挑战.
主要方法:
- 液态染色体双重质谱 (LC-MS/MS) 与相反分离.
- 用于样本制备的蛋白质沉和稀释.
- 使用酸作为稳定剂和表面活性剂添加剂,以防止不特定的结合.
- 用于高效的组织同质化和与等离子体匹配.
主要成果:
- 成功开发和验证了适合克服特定挑战的生物分析方法.
- 方法符合当前的监管准则,包括成功进行的样本再分析 (ISR).
- 在动物研究中应用3R原则,使用小样和快速分析进行儿科研究.
结论:
- 开发的生物分析方法成功支持了risdiplam进入市场的旅程.
- 通过生物分析支持,以患者为中心的方法,包括剂量发现和采样.
- 这些方法在回答risdiplam批准和临床使用的关键问题方面至关重要.
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