Oral Immunotherapy for Hazelnut Allergy: A Single-Center Retrospective Study on 100 Patients.

Background: Oral immunotherapy (OIT) protects patients with IgE-mediated food allergies from food-induced allergic reactions due to accidental exposure and may improve their quality of life. This approach has never been evaluated for hazelnut, a major cause of food allergy in Europe.

Objective: To determine the proportion of hazelnut-desensitized patients after 6 months of OIT and to identify predictors of successful desensitization.