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Review
. 2022 Nov;14(6):604-652.
doi: 10.4168/aair.2022.14.6.604.

Chinese Guideline on Allergen Immunotherapy for Allergic Rhinitis: The 2022 Update

Affiliations
Review

Chinese Guideline on Allergen Immunotherapy for Allergic Rhinitis: The 2022 Update

Chengshuo Wang et al. Allergy Asthma Immunol Res. 2022 Nov.

Abstract

In the last few decades, there has been a progressive increase in the prevalence of allergic rhinitis (AR) in China, where it now affects approximately 250 million people. AR prevention and treatment include allergen avoidance, pharmacotherapy, allergen immunotherapy (AIT), and patient education, among which AIT is the only curative intervention. AIT targets the disease etiology and may potentially modify the immune system as well as induce allergen-specific immune tolerance in patients with AR. In 2017, a team of experts from the Chinese Society of Allergy (CSA) and the Chinese Allergic Rhinitis Collaborative Research Group (C2AR2G) produced the first English version of Chinese AIT guidelines for AR. Since then, there has been considerable progress in basic research of and clinical practice for AIT, especially regarding the role of follicular regulatory T (TFR) cells in the pathogenesis of AR and the use of allergen-specific immunoglobulin E (sIgE) in nasal secretions for the diagnosis of AR. Additionally, potential biomarkers, including TFR cells, sIgG4, and sIgE, have been used to monitor the incidence and progression of AR. Moreover, there has been a novel understanding of AIT during the coronavirus disease 2019 pandemic. Hence, there was an urgent need to update the AIT guideline for AR by a team of experts from CSA and C2AR2G. This document aims to serve as professional reference material on AIT for AR treatment in China, thus improving the development of AIT across the world.

Keywords: Allergen immunotherapy; China; allergic rhinitis; biomarkers; guidelines; house dust mites; immunoglobulin E; rush immunotherapy; subcutaneous immunotherapy.

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Conflict of interest statement

There are no financial or other issues that might lead to conflict of interest.

Figures

Fig. 1
Fig. 1. Mechanisms of immunotherapy.
IL, interleukin; TGF, transforming growth factor; Ig, immunoglobulin.
Fig. 2
Fig. 2. Stages for the diagnosis of different chronic rhinitis endotypes.
Ig, immunoglobulin; AR, allergic rhinitis; LAR, local allergic rhinitis; NARES, nonallergic rhinitis with eosinophilia syndrome; IR, idiopathic rhinitis; NAPT, nasal allergen provocation test.
Fig. 3
Fig. 3. Risk levels of allergen-immunotherapy-related diagnosis and treatment activities during the pandemic. FeNO, fractional exhaled nitric oxide.

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