A Real-life Observational Study in Severe Eosinophilic Asthma Adult Participant Treated With Benralizumab in Italy

Inclusion Criteria: * Adults (≥ 18 years old) diagnosed with severe uncontrolled eosinophilic asthma. * Benralizumab has been prescribed according to the approved label and local reimbursement criteria * Provision of signed Informed Consent Form (ICF) prior to any study-related activities * Benralizumab has been initiated within 7 days prior to study enrollment or is planned to be initiated within 7 days after enrollment (in the latter case, provided that the decision to prescribe benralizumab is made prior to the decision to enroll the patient in the study). Exclusion Criteria: * Benralizumab treatment within the 12 months prior to study enrollment and up to 8 days before enrollment * Previous participation (in the 12 months before enrollment), current participation or plan to participate within the follow up period to any other clinical trial. * Contraindication to benralizumab as per current Summary of Product Characteristics (SmPC). * Pregnant or lactating women. * patients with any clinical condition that may interfere with the subject's ability to cooperate and comply with the study procedures based on the Investigator's judgement. * Previous or concomitant use of omalizumab, reslizumab, dupilumab, tezepelumab or mepolizumab without washout period as per clinical practice