药物开发 药物开发
Steven Hersch1, Michelle Gee2, Thomas Doherty3
1Eisai Inc., Nutley, NJ, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
用于阿尔茨海默氏病 (AD) 的皮下lecanemab显示出较低的免疫性和与静脉注射剂量相比的有效性. 这种新配方为患者提供了方便和安全的替代方案,减少了全身反应.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 临床试验 临床试验
背景情况:
- 在Clarity AD试验中,莱卡涅马布 (10 mg/kg IV Q2W) 在减缓阿尔茨海默病 (AD) 进展方面表现出有效性.
- 药理动力学/药理动力学 (PK/PD) 建模将lecanemab度与粉样斑减少和ARIA-E.相关联.
- 开发了一种皮下配方,以潜在地提高安全性并减少全身反应.
研究的目的:
- 更新从皮下lecanemab开发计划的临床结果.
- 为了评估皮下lecanemab的安全性,耐受性和药理学特征.
- 为了比较皮下lecanemab与已批准的静脉注射配方.
主要方法:
- 第3期清晰度AD研究涉及早期AD随机分配给安慰剂或莱卡尼马布 (10毫克/千克两周一次) 的患者.
- 皮下剂量开发使用了PK/PD建模,生物可用性数据和Clarity AD开放标签扩展项目的子研究.
- 使用了经过验证的抗药抗体 (ADA) 和中和抗体 (Nab) 试验.
主要成果:
- 每周360毫克的皮下莱卡涅马布呈现低的ADA率 (2%) 和维持了与AD病理抑制相一致的血生物标志物.
- 建模表明,每周皮下维持剂量与每两周一次的静脉注射剂量之间,粉样蛋白PET和CDR-SB对每周一次皮下维持剂量的影响相似.
- 没有报告ARIA-E,ARIA-H,或死亡发生在皮下lecanemab;注射部位反应是罕见的和轻度/中度.
结论:
- 皮下lecanemab显示免疫性低风险.
- 皮下注射的配方提供了与静脉注射剂量相比的安全性,耐受性和药理学特征.
- 自动注射器的使用提高了患者对lecaneemab治疗的方便性.
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