在患有早期阿尔茨海默氏症的参与者中,多纳纳的免疫性
Garrett R Mullins1, Paul Ardayfio1, Ivelina Gueorguieva2
1Eli Lilly & Company Lilly Corporate Center Indianapolis Indiana USA.
Alzheimer's & dementia (New York, N. Y.)
|September 4, 2025
概括
在阿尔茨海默病试验中,大多数接受多纳米巴的参与者产生了抗药抗体 (ADA),增加了药物清除,但没有影响粉样斑减少或临床疗效.
科学领域:
- 免疫学
- 药物动力学
- 神经退行性疾病
背景情况:
- 多纳尼马布是一种针对阿尔茨海默病的粉样β斑块的抗体.
- 治疗产生的抗药抗体 (ADA) 可以影响治疗蛋白质的有效性和安全性.
- 了解ADA的发展对于donanemab治疗至关重要.
研究的目的:
- 在接受多纳马布治疗的参与者中量化治疗出现的抗药抗体 (ADAs).
- 评估TE ADA对多纳尼马布的药理动力学,减少斑块,临床疗效和安全性的影响.
- 分析ADA和输液相关反应 (IRR) 之间的关系.
主要方法:
- 从两个关键试验 (TRAILBLAZER-ALZ和TRAILBLAZER-ALZ2) 的数据汇总.
- 参与者每4周内接受多纳梅布或安慰剂,长达72周.
- 量化了TE ADA,并分析了它们对多纳尼马布水平,粉样斑块负担 (使用PET成像) 和临床结果 (iADRS和CDR- SB得分) 的影响.
主要成果:
- 在接受多纳马布治疗的参与者中,TE ADA阳性为88. 1%.
- TE ADA增加了多纳马布的清除,但没有影响最大度或粉样斑减少.
- 没有ADA存在/ 滴度与临床疗效 (iADRS/ CDR- SB) 之间的关联;8. 5%的参与者出现了IRR,所有参与者都出现了ADR,但大多数ADR阳性参与者没有IRR.
结论:
- 大多数接受多纳尼马布治疗的患者会产生TE ADA,这些ADA会增加药物清除,但不会影响疗效.
- 粉样斑减少和临床结果没有受到ADA的发展的影响.
- 虽然IRR与ADA的发展有关,但大多数ADA患者没有IRR.
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