Autosomal recessive hyper‐IgE syndrome due to DOCK8 deficiency: An adjunctive role for omalizumab

Abstract Autosomal recessive hyper‐IgE syndrome (AR‐HIES) is a rare primary immunodeficiency disorder characterized by high serum IgE levels, recurrent viral skin infections, severe allergies, and early‐onset malignancies, associated with mutations in the gene encoding the dedicator of cytokinesis 8 protein (DOCK8). We report a rare case of AR‐HIES with DOCK8 deficiency in a young Japanese male with a past medical history of chronic atopic dermatitis, severe food allergies, and severe herpes simplex virus infection. Treatment was successfully based on infection management, skincare, and dietary elimination. In addition, anti‐IgE therapy with omalizumab was the target treatment for this syndrome