对扩展一代生殖毒性研究 (OECD TG 443) 的剂量设置的审查:关于ECHA剂量级选择建议的考虑
Manon Beekhuijzen1, Emily Richmond2, Jason Manton2
1Charles River Laboratories, 's-Hertogenbosch, the Netherlands.
Regulatory toxicology and pharmacology : RTP
|June 17, 2024
概括
欧洲化学品署 (ECHA) 对生殖毒性研究的建议可能会通过不充分评估危害和超过最大耐受剂量来损害动物福利和人类安全. 专家敦促ECHA采用经过修订的,以科学为导向的剂量选择方法.
科学领域:
- 毒理学 毒理学 毒理学
- 生殖毒理学 生殖毒理学
- 化学安全评估 化学安全评估
背景情况:
- 欧洲化学品署 (ECHA) 评估了经合组织的测试指南443 (扩展一代生殖毒性研究 - EOGRTS).
- ECHA发布了关于发育和生殖毒性 (DART) 研究的建议,重点是剂量水平选择.
- 有关ECHA建议与3R (替代,减少,改进),动物福利和人类安全的协调存在担忧.
研究的目的:
- 批判性地评估ECHA对EOGRTS剂量选择的建议.
- 突出对动物福利和人类健康保护的潜在不利影响.
- 倡导对剂量选择标准进行修订,以科学为导向的方法.
主要方法:
- 科学协会的专家共识和集体声明.
- 分析ECHA关于研究设计和毒理发现的建议.
- 评估剂量设定原则与最大耐受剂量 (MTD) 相比.
主要成果:
- 通过将生育测试与后代发育评估分开,ECHA的建议可能无法充分识别产后危险.
- 在EOGRTS中推的高剂量水平可能超过MTD,危及毒理学解释.
- 这些因素可能会导致动物使用增加和动物福利问题加剧.
结论:
- 目前ECHA对EOGRTS的建议可能不完全支持3R,动物福利或全面的人类健康保护.
- 需要对剂量选择采取修订后的,务实的,以科学为导向的方法.
- 将监管需求与科学原则相平衡,对于强有力的化学品安全评估至关重要.
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