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August 27, 2026Allergy Asthma and Clinical ImmunologyOpen Access

Baseline immune profiles are associated with positive outcomes in young children with a peanut allergy, enrolled in a randomised clinical trial for oral immunotherapy

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Authors

ICIsabelle CoenenAFAbbey FigliomeniKPKimberley Parkin

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Overview

Randomized trial finds baseline immune profiles correlate with desensitization success during peanut oral immunotherapy in young children, highlighting biomarkers to predict treatment response.

Key Points

  • To identify baseline and on-treatment immunological profiles associated with successful desensitization outcomes in young children undergoing peanut oral immunotherapy.
  • Assessed blood samples from 49 peanut-allergic children aged 1–4 years randomized to peanut oral immunotherapy (n=24) or strict peanut avoidance (n=25) for 12 months in the Early Peanut Immunotherapy in Children (EPIC) trial.
  • Evaluated desensitization via an end-of-treatment oral food challenge and profiled 30 immune cell subsets using flow cytometry and an FcεR1 expression panel at baseline, 12 weeks (intervention arm), and end of treatment.
  • Oral immunotherapy induced partial or complete desensitization in 91.3% of the intervention group compared to 20.8% in the avoidance group.
  • Intervention increased basophils, monocytes, and dendritic cells by 12 weeks, and expanded CD4- T effector memory cells and mast cell progenitors by end of treatment.
  • Complete desensitization was significantly associated with younger age, lower baseline peanut-specific IgE, reduced baseline CD4+ memory Tregs, and reduced CD4- central memory T cells, whereas higher baseline basophils were linked to partial desensitization.

Cite This Study

Coenen et al. (2026) studied this question.

synapsesocial.com/papers/6a90053410c91c1e92622677https://doi.org/10.1186/s13223-026-01061-x
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