Future directions in allergen immunotherapy

Breaking the mold: nontraditional approaches to allergen immunotherapy for environmental allergens

Allergen immunotherapy is a disease-modifying treatment for allergic diseases. The predominant traditional immunotherapy is through subcutaneous administration of allergens to gradually desensitize allergic individuals. While effective, traditional allergen immunotherapy approaches are often lengthy, time consuming for patients and can result in local or systemic adverse reactions. Nontraditional immunotherapies are emerging as promising alternatives, offering potentially more convenient, safe and efficacious treatment options. This review sought to comprehensively examine the safety, efficacy and performance of various nontraditional immunotherapies for environmental allergens. Nontraditional immunotherapy approaches covered in this review include sublingual, local nasal, intralymphatic rush and ultra-rush immunotherapy, allergoid, microbial and anti-IgE immunotherapies. Nontraditional immunotherapies show significant promise in addressing the limitations of traditional subcutaneous immunotherapy. Methods like intralymphatic and rush immunotherapy offer shorter treatment regimens, enhancing patient adherence and convenience. The co-administration of probiotics or monoclonal antibodies, like omalizumab, with AIT appears to improve treatment efficacy and safety. Despite these advancements, further large-scale, long-term studies are needed to establish standardized protocols, dosing and validate long-term effects of these nontraditional immunotherapies. Standardizing outcome measurements across studies is crucial for accurate comparisons of nontraditional immunotherapies prior to widespread clinical adoption of these innovative techniques.

Self-Management in Allergic Rhinitis: Strategies, Outcomes and Integration into Clinical Care

Allergic rhinitis (AR) is a common disease, characterized by typical symptoms and type 2 inflammation. Standard treatment is usually effective and safe, and most medications are available as over-the-counter (OTC). Therefore, AR patients, mostly at the AR onset or if symptoms are mild, prefer to manage symptoms themselves. However, self-management could be associated with problems, including inadequate control or medication abuse. Therefore, this paper aimed at presenting and discussing this issue. Ideally, self-management should be conducted under medical supervision. In this regard, telemedicine could represent a valuable tool for implementing self-management. Visual analog scale (VAS) is a perfect parameter to measure symptom severity, medications use, and AR control. In addition, VAS is easily monitored over time. Presently, a mobile application allows to AR patients of self-managing themselves. Therefore, mobile healthcare may supply fundamental support in communication and decision-making. In this regard, VAS represents the best tool to monitor symptoms' severity and control over time. Finally, pharmacological and non-pharmacological remedies are numerous and effective but should be used wisely.

Recent Updates of Immunotherapy for Allergic Rhinitis in Children

Purpose of Review

Allergen immunotherapy (AIT) is a novel treatment approach with disease-modifying and preventative benefits that are not shared with other strategies for treating allergic illnesses. It has been demonstrated to be safe and effective in children. This review provides the most recent information on AIT in children as well as any pertinent updates.

Recent Findings

Although there is not a standard way to begin AIT, there are clear indications for AIT. Each case needs to be evaluated on its own by weighing the pros and downsides. AIT has been proven to significantly improve symptoms and quality of life in children with allergic illness, reduce medication use, stop the development of new allergen sensitizations, and stop the progression of allergic rhinitis to asthma. Novel approaches are under investigation to overcome some known AIT disadvantages.

Summary

This review provides a thorough summary of the most recent research and updates on AIT in children.

Long-term efficacy of the sublingual and subcutaneous routes in allergen immunotherapy

Allergen immunotherapy is highly effective in selected patients with allergic rhinitis, allergic asthma, and Hymenoptera venom allergy. Unlike anti-allergic drugs, both subcutaneous and sublingual immunotherapies have been shown to modify the underlying cause of the disease, with proved long-term clinical benefits after treatment cessation. In this review, we analyzed 10 randomized, double-blind, placebo controlled clinical trials of allergen immunotherapy that included blinded follow-up for at least 1 year after treatment withdrawal. Three studies of pollen subcutaneous immunotherapy provided evidence that a sustained, tolerogenic effect of subcutaneous immunotherapy can be achieved after 3 years of treatment. Six trials of sublingual immunotherapy provided robust evidence for long-term clinical benefit and persistent immunologic changes after grass pollen, house-dust mite, or Japanese cedar immunotherapy, whereas a clinical trial of both sublingual and subcutaneous grass pollen immunotherapies showed that 2 years of immunotherapy were efficacious but insufficient to induce long-term tolerance. These studies strongly supported international guidelines that recommend at least 3 years of allergen immunotherapy of proven value to achieve disease modification and sustained clinical and immunologic tolerance.

Essentials of allergen immunotherapy: A primer for the practitioner

It has been more than a decade since the most recent allergen immunotherapy (AIT) practice parameter was published and 5 years since a focused practice parameter on sublingual immunotherapy (SLIT) was issued. There is an unmet need, therefore, for a more up-to-date, concise summary of AIT to be published to provide allergy/immunology practitioners, allergy/immunology fellows-in-training, medical students, residents, and other health-care practitioners with the most current information available on AIT. The Allergen Immunotherapy Primer (AITP) is not intended to define a standard of care or to be inclusive of all proper methods of care, nor is it intended to replace or supplant established AIT practice parameters; rather, the goal of this AITP is to supplement the established practice parameters and to serve primarily as an updated tool for the practicing allergist/immunologist, allergy/immunology trainees, and health-care professionals seeking practical and concise information with regard to AIT. Primer topics include the history of AIT; descriptions of the mechanisms and biomarkers of subcutaneous immunotherapy (SCIT) and SLIT; the efficacy and safety of SCIT; the efficacy and safety of SLIT, pediatric SLIT, and SCIT; the long-term efficacy of SLIT and SCIT; long-term adherence strategies for AIT; the implications of real-world data for AIT; the role of AIT for asthma; patterns of cross-allergenicity among pollens; a practical implementation guide for optimized construction of AIT vaccines; standardization of allergen extracts; updated information on federal regulations about the United States Pharmacopeia and the compounding of allergenic extracts; an update on AIT venom immunotherapy; the advantages and disadvantages of accelerated immunotherapy regimens; the important role of shared decision-making in AIT and how it can be incorporated into the informed consent process; and a forecast of future directions in allergen immunotherapy.