Allergy:增加淋巴内免疫治疗剂量是否能够改善过敏性鼻炎临床疗效?

2021-08-31 AlexYang MedSci原创

过敏免疫疗法(AIT)是治疗过敏性鼻炎(AR)的唯一方法,它既能改善症状,又能改变病程,但很少能完全消除症状。它通常以皮下免疫疗法(SCIT)的形式反复注射,或以舌下免疫疗法(SLIT)的形式进行给药

过敏免疫疗法(AIT)是治疗过敏性鼻炎(AR)的唯一方法,它既能改善症状,又能改变病程,但很少能完全消除症状。它通常以皮下免疫疗法(SCIT)的形式反复注射,或以舌下免疫疗法(SLIT)的形式进行给药。这两种方法都需要至少3年的治疗周期,副作用和依从性问题限制了其使用

在大多数治疗过敏性鼻炎(AR)的淋巴内免疫疗法(ILIT)试验中,均评估了相同的剂量,即1000 SQ-U×3,间隔一个月。近期,研究人员本评估了增加ILIT剂量是否能提高临床和免疫效果,且不影响安全性

研究人员对ILIT治疗草花粉诱发的AR患者进行了两项随机双盲安慰剂对照试验。第一个试验包括29名刚刚结束3年SCIT的患者,第二个试验包括39名以前没有接种过疫苗的患者。评估了1000-3000-10000(5000+5000,间隔30分钟)SQ-U剂量效果,中间间隔1个月。

SCIT之后,10000 SQ-U剂量是安全的。症状-用药联合评分(CSMS)降低了31%,血液特异性IgG4水平提高了1倍。在ILIT中,接受积极治疗的2名患者在5000SQ-U时出现严重的不良反应。调整剂量后,1000-3000-3000 SQ-U表现为安全,但未能改善CSMS。流式细胞仪分析显示,淋巴结衍生的树突状细胞激活增加,而T细胞没有增加。在所有研究中,生活质量和鼻腔激发反应都没有改善。

症状和用药情况

综上所述,SCIT后高剂量的淋巴内免疫治疗,似乎可以进一步减少草花粉引起的季节性症状因此,可以考虑作为SCIT后,症状未完全控制患者的附加治疗。而对于没有进行过免疫治疗的患者,应避免每月三次注射均超过3000 SQ-U剂量。

原始出处:

Laila Hellkvist , Eric Hjalmarsson , Dan Weinfeld et al. High dose pollen intralymphatic immunotherapy: two RDBPC trials question the benefit of dose increase. Allergy. Aug 2021

 

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    2021-09-02 仁医06
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    2021-09-01 内科新手

    谢谢梅斯提供这么好的信息,学到很多

    0

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