Main parameters of the patient, before the introduction of biologics, at the switch to mepolizumab, and after 3 months of therapy

Main parametersBaselineAfter 5 weeksAt switchAfter 3 months of mepolizumab
Blood eosinophils500 cells/µl6,600 cells/µl1,900 cells/µl100 cells/ µl
FeNO57 ppb22 ppb38 ppb29 ppb
FEV1 (%)45%56%51%62%
FEV1 (L)1.15 L1.43 L1.30 L1.55 L
ACT18232524
SNOT-2258282024

Parameters of principal markers, found during single observations, concerning lung function tests and control of the disease before the first biologic used, dupilumab (baseline), after 5 weeks of treatment with dupilumab, at the switch to mepolizumab and after 3 months from the first administration of 300 mg of mepolizumab. FEV1: forced expiratory volume in 1 second; ACT: asthma control test; SNOT-22: sinonasal outcome test-22