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在注射5%或10%静脉注射免疫球蛋白后,初级免疫缺陷中的保护性抗体度
Martyn Paddick1, Kim Clark2, Eric Wolford3
1From the Research and Development Department, Kedrion Biopharma, Elstree, United Kingdom.
Allergy and asthma proceedings
|September 13, 2024
概括
静脉注射免疫球蛋白 (IVIG) 5%和10%配方为原发性免疫缺陷患者提供相当的保护性抗体度. 两种IVIG产品都能确保足够的IgG抗感染水平,无论年龄或输液计划如何.
科学领域:
- 免疫学 免疫学 免疫学
- 临床药理学 临床药理学
- 传染性疾病 传染性疾病
背景情况:
- 初级免疫缺陷会影响IgG抗体的产生,增加对感染的易感性.
- 患者通常需要静脉注射免疫球蛋白 (IVIG) 来获得对病原体的被动免疫.
- 严重的感染,包括喘恶化,具有重大风险.
研究的目的:
- 在初级免疫缺陷患者中比较5%和10%的IVIG产品中的IgG抗体度.
- 在第三阶段研究的亚分析中评估IVIG配方的生物等价性.
- 评估对关键呼吸道病原体的保护性抗体水平.
主要方法:
- 一个多中心,多国,第三阶段,开放标签生物等价性研究的子分析.
- 患者接受了5%或10%的IVIG,每次输注300-800mg/kg.
- 测量了总IgG,IgG子类,麻疹中和抗体和对封装细菌的抗体的最低度.
主要成果:
- 在5%和10%IVIG配方之间的IgG度没有显著差异.
- 在成人和儿科患者组和输液计划 (21或28天) 中,结果一致.
- 所有患者的IgG最低度都超过了公认的保护值.
结论:
- 5%和10%的IVIG产品在初级免疫缺陷患者中提供一致和生物等效的IgG度.
- 这两种配方都确保了对麻疹病毒和封装细菌的保护性抗体水平.
- 研究结果支持两种IVIG度的临床使用,以保持足够的被动免疫力.
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