Reslizumab (RES) in asthma patients (pts) with severe eosinophilic asthma stratified by GINA asthma steps 4 and 5: Analysis of two phase 3, placebo (PBO)-controlled trials

Background: RES reduced exacerbation frequency and improved lung function and asthma control in pts with inadequately controlled asthma and elevated blood eosinophils (EOS) in two PBO-controlled, phase 3 trials (Castro et al. Lancet Resp Med 2015). Aims/objectives: To determine the efficacy of RES in asthma pts stratified by GINA Step 4 (G4) and Step 5 (G5) categories of asthma severity. Methods: Pooled data from two 52-week, PBO-controlled trials of RES (3mg/kg IV Q4W) in pts with inadequately controlled asthma and blood EOS ≥400/µL on inhaled corticosteroid (ICS) ± another controller; primary results have been reported. Current analysis includes pts stratified by G4 (medium/high-dose ICS …