关于对非变异性杂质的管理提出了新的极限
Anja Slikkerveer1, Olaf Doehr2, Nancy Claude3
1D2Team, Pompoenweg 9, Leiden, the Netherlands.
Regulatory toxicology and pharmacology : RTP
|May 22, 2024
概括
非变异性杂质 (NMI) 的新通用限值确保了药物开发早期的患者安全. 这些限制通过避免专门的杂质合格研究来减少不必要的动物试验.
科学领域:
- 制药科学 制药科学
- 药物开发 药物开发
- 毒理学 毒理学 毒理学
背景情况:
- 对于药物杂质的现有国际指南 (ICH Q3A/B) 在早期开发阶段缺乏适用性.
- 这种差距在早期药物开发中导致了对非变异性杂质 (NMI) 的可接受限值的混乱.
- 目前的指导方针需要灵活的方法,优先考虑患者的安全,暴露时间有限.
研究的目的:
- 提出灵活的,以安全为中心的方法,在药物开发的早期阶段为合格的非变异性杂质 (NMI) 提出建议.
- 根据毒理学数据,建立NMI的通用可接受摄入限值.
- 为了减少对杂质资格不必要的动物试验的需要.
主要方法:
- 从EFPIA关于杂质合格研究 (ICH Q3A) 的调查中分析定量数据.
- 对药物,中间体,食品物质和化学品的毒理学数据集的编制.
- 对NMI提出的通用限值 (5毫克/天<6个月,1毫克/天终身暴露) 的评估.
主要成果:
- 467个测试杂质在任何体内水平上都没有被认为具有毒性.
- 建议的5毫克/天 (<6个月) 和1毫克/天 (终身) 的通用限值为NMI提供了足够的安全边际.
- 这些绝对极限被认为足以引发资格研究,取代相对极限.
结论:
- 对于NMI的通用限制是早期药物开发的必要条件,以确保患者的安全.
- 拟议的极限限制可以防止不必要的专门杂质合格研究,并减少动物使用.
- 这种方法支持有效的药物开发,同时保持高安全标准.
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