Oral food immunotherapy in patients with atopic dermatitis

Gilbert T Chua1, Douglas P Mack2, Marcus S Shaker3

  • 1Allergy Centre, Union Hospital, Hong Kong SAR, China; Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.

Insights

Oral immunotherapy (OIT) is effective for infant food allergies, even with atopic dermatitis (AD). Early OIT initiation prevents further food allergies, and managing AD flares during treatment is crucial for adherence.

Area of Science:

  • Pediatric Allergy and Immunology
  • Dermatology
  • Clinical Nutrition

Background:

  • Atopic dermatitis (AD) is a significant risk factor for developing food allergies in infants.
  • Early childhood oral immunotherapy (OIT) shows high efficacy and safety for food allergies, particularly in infants with or without AD.
  • Delayed OIT initiation due to uncontrolled AD may lead to broader food allergies via unnecessary dietary restrictions.

Purpose of the Study:

  • To investigate the association between OIT and atopic dermatitis (AD) flares in infants and children.
  • To propose management strategies for concurrent AD and food allergy in children undergoing OIT.
  • To address the lack of literature on OIT as a trigger for AD flares and its clinical implications.

Main Methods:

  • Review of 8 case scenarios detailing AD flare severity before and during OIT.
  • Development of management algorithms for initiating OIT in children with pre-existing AD and food allergy.
  • Analysis of potential confusion between OIT-related reactions and AD flares.

Main Results:

  • AD flares can occur during OIT, but their direct causal link to OIT requires further study.
  • Effective AD management and patient education prior to OIT can mitigate confusion regarding rash etiology.
  • Proposed algorithms aim to guide clinicians in managing children with concurrent AD and food allergies undergoing OIT.

Conclusions:

  • Optimizing atopic dermatitis control before initiating oral immunotherapy is essential.
  • Clear management protocols can reduce confusion and improve adherence to OIT in children with concurrent AD and food allergies.
  • Further research is needed to fully understand the relationship between OIT and AD flares.