IL-5, Eosinophils, and IL-5 Pathway Inhibitors in EGPA
A 2026 narrative review of the IL-5/eosinophil axis in eosinophilic granulomatosis with polyangiitis (EGPA) and the two approved IL-5 pathway inhibitors — mepolizumab and benralizumab — covering their mechanisms, MIRRA and MANDARA trial evidence, real-world data, guideline positioning, and the remaining unmet needs.