The FDA has approved depemokimab (Exdensur – GSK), a long-acting interleukin-5 (IL-5) antagonist, for add-on maintenance treatment of severe asthma characterized by an eosinophilic phenotype in patients ≥12 years old. Depemokimab is the fourth IL-5-directed treatment to be approved in the US for this indication; the IL-5 antagonists mepolizumab (Nucala) and reslizumab (Cinqair) and the IL-5 receptor alpha antagonist benralizumab (Fasenra) were approved earlier.