Send to

Choose Destination
See comment in PubMed Commons below
Pediatr Allergy Immunol. 2014 Jun;25(4):323-8. doi: 10.1111/pai.12243.

Monitoring Ara h 1, 2 and 3-sIgE and sIgG4 antibodies in peanut allergic children receiving oral rush immunotherapy.

Author information

Department of Allergy, Kanagawa Children's Medical Center, Kanagawa, Japan.



The aim was to study the clinical efficacy and safety of rush oral immunotherapy (OIT) for severe peanut-allergic children and to measure the antibody responses.


Eighteen Japanese children were enrolled after a positive double-blind, placebo-controlled food challenge (DBPCFC). The patients ingested peanuts up to 3-5 times a day every 30 min, increasing the dose by 20% every time. The goal dose was 3.5-7 g. IgE, IgG, and IgG4 antibody levels to peanut, and peanut allergen components were measured during up to 3 yr of maintenance treatment.


Two children dropped out due to side effects. Sixteen patients (14 boys and two girls, median: 9 yr range: 5-14 yr) achieved the goal dose after a median of 11 days (range: 4-19 days). Their median threshold dose at DBPCFC was 0.20 g (range: 0.015-1.0 g). All were sensitized to Ara h 2. Fourteen of them had a history of previous anaphylaxis. In total, 173 adverse events were observed during the treatment (27% of the total ingestions) of which 74 needed medications. The median IgE, IgG, and IgG4 antibody levels to peanut increased during rush OIT. The IgG4 levels were high during the whole maintenance phase. IgE and IgG4 antibodies to Ara h 2 dominated the serological response during the treatment.


The present rush OIT protocol for children with severe peanut allergy was effective and relatively safe. A sustained Ara h 2-specific IgG4 antibody response characterized the treatment.


IgE; IgG4; children; desensitization; oral immunotherapy; peanut allergy

[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center