Plausible Role of Asthma Biological Modifiers in the Treatment of Eosinophilic Esophagitis.
2021
Eosinophilic esophagitis (EoE) is a T-helper type-2 (Th2/T2) cell-mediated disease characterized by 15 or more eosinophils per high-powered esophageal biopsy microscopy field (eos/hpf), excluding other causes. EoE is often clinically characterized by symptoms such as dysphagia, nausea, food impaction, and chest pain that do not respond to antacids. Two-thirds of patients are unresponsive to proton pump inhibitors (PPIs). Steroids may be effective but pose long-term health risks and can lose efficacy in patients with serum eosinophilia greater than 1,500 cells/µL. Because EoE is not IgE-mediated, allergy skin testing for food may benefit a subset of patients. These therapies have shortcomings, which necessitate further investigation. Herein, we report a patient successfully treated with benralizumab (anti-IL-5Rα), demonstrating a potential solution to the lack of effective treatments for EoE.
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