Dupilumab Efficacy in Uncontrolled, Moderate-to-Severe Asthma With Self-reported Chronic Rhinosinusitis.
Maspero JF., Katelaris CH., Busse WW., Castro M., Corren J., Chipps BE., Peters AT., Pavord ID., Ford LB., Sher L., Rabe KF., Rice MS., Rowe P., Lu Y., Harel S., Jagerschmidt A., Khan A., Kamat S., Pirozzi G., Amin N., Ruddy M., Graham NMH., Mannent L., Teper A.
BACKGROUND: Dupilumab, a fully human monoclonal antibody, blocks the shared receptor component for interleukin (IL)-4 and IL-13 signaling, key drivers of type 2 inflammation. In the phase 3 study (NCT02414854), add-on dupilumab 200mg/300mg every 2 weeks, versus placebo, significantly reduced severe asthma exacerbations and improved pre-bronchodilator forced expiratory volume in 1 second (FEV1) and quality-of-life measures in patients with uncontrolled, moderate-to-severe asthma, with greater efficacy observed in those with a high baseline type 2 phenotype. OBJECTIVE: To assess the efficacy and safety of dupilumab in uncontrolled, moderate-to-severe asthma patients with or without self-reported comorbid chronic rhinosinusitis (CRS or non-CRS). METHODS: Comorbid CRS was self-reported by patients using an e-diary. Annualized severe exacerbation rates, changes from baseline in pre- and post-bronchodilator FEV1, patient-reported outcomes, type 2 biomarkers, and safety were assessed. RESULTS: CRS was self-reported by 382/1902 (20.1%) patients. Dupilumab 200mg/300mg reduced annualized severe exacerbation rates by 63%/61%, respectively, in patients with CRS, and by 42%/40% in patients without CRS (all P<.001 vs placebo). Dupilumab also improved lung function and patient-reported asthma control and quality of life, and suppressed type 2 biomarkers versus placebo in both subgroups. Clinical responses were rapid, with near-maximal responses observed at the earliest measured timepoints and sustained at week 52. Improvements observed in the CRS subgroup were similar to or numerically greater than those in the non-CRS subgroup. CONCLUSION: Dupilumab showed efficacy and was generally well tolerated in patients with uncontrolled, moderate-to-severe asthma with or without CRS.