用PQ Grass进行短期皮下治疗,在草过敏中大大改善了症状和药物评分
P J de Kam1, S Zielen2, J A Bernstein3
1Allergy Therapeutics PLC, Worthing, UK.
Allergy
|June 27, 2023
概括
这项研究表明,PQ草免疫疗法显著减少了草过敏症状. 与安慰剂相比,延长治疗方案在仅6次注射后,在症状得分上表现出近40%的改善,安全性良好.
科学领域:
- 过敏和免疫学 过敏和免疫学
- 免疫治疗是一种免疫疗法.
- 药理学 药理学是指药理学的学科.
背景情况:
- 一种新的皮下免疫疗法 (SCIT) 产品Grass MATA MPL (PQ Grass) 正在开发中,用于草花粉过敏性鼻炎.
- 该产品使用微晶氨酸和单酸脂-A作为短期治疗的辅助系统.
研究的目的:
- 在现实环境中评估PQ Grass优化累积剂量的疗效.
- 在III期试验之前评估综合症状和药物评分 (CSMS).
主要方法:
- 一项探索性,随机,双盲,安慰剂控制的试验,涉及119名中度至重度SAR的受试者.
- 进行了六次季前皮下注射PQ Grass (传统或扩展方案) 或安慰剂.
- 主要终点:草花花粉季高峰期间的CSMS;次要终点:犀牛结膜炎生活质量调查问卷 (RQLQ-S) 和IgG4反应.
主要成果:
- PQ Grass在CSMS中显示了统计学上显著的减少:传统方案为33.1%,扩展方案为39.5% (p<0.05).
- 两种疗法都显示过敏原特异性IgG4增加 (p<0.01) 和扩展疗法改善了RQLQ-S得分 (p=0.02).
- 这两种治疗方案都耐受良好,同样安全.
结论:
- PQ草免疫疗法在草过敏方面显示出临床相关和统计学显著的疗效.
- 仅在6次注射后,就观察到前所未有的效果大小 (CSMS减少高达~40%).
- 由于其增强的疗效,延长疗程将进入关键的III期试验.
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