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Dupilumab Efficacy in Patients with Type 2 Asthma with and without Elevated Blood Neutrophils. | LitMetric

AI Article Synopsis

Article Abstract

Introduction: Elevated neutrophil counts in blood, sputum, or lung have been associated with poor clinical outcomes and more severe disease in patients with type 2 asthma. In the phase 3 LIBERTY ASTHMA QUEST (NCT02414854), add-on dupilumab 200 and 300 mg every 2 weeks compared with matched placebo significantly reduced severe asthma exacerbations and improved forced expiratory volume in 1 s (FEV) in patients with uncontrolled, moderate-to-severe asthma. This analysis explored the efficacy of dupilumab in patients with type 2 asthma enrolled in QUEST with or without elevated blood neutrophil counts.

Methods: Annualized severe exacerbation rates during the 52-week treatment period and least-squares mean change from baseline in FEV over time were evaluated for patients with elevated type 2 biomarkers at baseline (blood eosinophils ≥ 150 cells/L or fractional exhaled nitric oxide (FeNO) ≥ 20 ppb; and eosinophils ≥ 300 cells/L or FeNO ≥ 50 ppb) and low (<4,000 cells/L) or high (≥4,000 cells/L) neutrophil counts.

Results: Dupilumab significantly reduced annualized severe exacerbation rates compared with placebo during the 52-week treatment period in patients with elevated type 2 biomarkers, irrespective of baseline neutrophil count ( < 0.0001 for all comparisons). Significant improvements in FEV versus placebo were observed as early as Week 2 and over the 52-week treatment period, irrespective of baseline neutrophil count ( < 0.001 for all comparisons). Safety findings were similar across all subgroups, regardless of neutrophil counts at baseline.

Conclusions: Dupilumab treatment significantly reduced annualized severe exacerbation rates and improved lung function in patients with uncontrolled, moderate-to-severe, type 2 asthma, irrespective of baseline blood neutrophil count. This trial is registered with NCT02414854.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10602700PMC
http://dx.doi.org/10.1155/2023/9943584DOI Listing

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