Wheat oral immunotherapy was moderately successful but was associated with very frequent adverse events in children aged 6–18 years
2018
AIM: This study investigated oral immunotherapy (OIT) for children aged 6-18 years with wheat allergies. METHODS: Well-cooked wheat spaghetti was given to 100 children with wheat allergies every day for 17 weeks, increasing from 0.3 to 2000 mg of wheat protein, followed by three- and nine-month maintenance phases. Blood samples were taken before therapy and at follow-up visits. The study was carried out in 2009-2015 in four Finnish paediatric allergology units. RESULTS: The children (67% male) had a mean age of 11.6 years (range 6.1-18.6), and 57 were using wheat daily 16 months after the initiation of therapy. Allergic symptoms occurred in 94/100 children: mild in 34, moderate in 36 and severe in 24. Specific immunoglobulin E (IgE) for ω-5-gliadin was significantly higher in patients who did not reach the target dose and were related to the intensity of reactions. CONCLUSION: The majority (57%) of children with wheat allergies could use wheat in their daily diet 16 months after the initiation of OIT, but 94/100 had adverse reactions and 60 were moderate or severe. Specific IgE to ω-5-gliadin may provide a biomarker for how much wheat can be tolerated and the intensity of the reactions to immunotherapy.
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