Δευτέρα 10 Φεβρουαρίου 2020

Benralizumab, dupilumab, mepolizumab, omalizumab and reslizumab for severe eosinophilic asthma

Efficacy and safety of treatment with biologicals (benralizumab, dupilumab, mepolizumab, omalizumab and reslizumab) for severe eosinophilic asthma:

Abstract

Five biologicals have been approved for severe eosinophilic asthma, a well‐recognised phenotype. Systematic reviews (SR) evaluated the efficacy and safety of benralizumab, dupilumab, mepolizumab, omalizumab and reslizumab (alphabetical order) compared to standard of care for severe eosinophilic asthma.

Pubmed, EMBASE and Cochrane Library were searched to identify RCTs and health economic evaluations, published in English. Critical and important asthma‐related outcomes were evaluated for each of the biologicals. The risk of bias and the certainty of the evidence were assessed using GRADE.

19 RCTs (3 RCTs for benralizumab, 3 RCTs for dupilumab, 3 RCTs for mepolizumab, 4 RCTs for omalizumab, and 5 RCTs for reslizumab), including subjects 12 to 75 years old (except for omalizumab including also subjects 6‐11 years old), ranging from 12 to 56 weeks were evaluated. All biologicals reduce exacerbation rates with high certainty of evidence: benralizumab rate ratio (RR) 0.53 (95% CI 0.39 to 0.72), dupilumab RR 0.43 (95% CI 0.32 to 0.59), mepolizumab RR 0.49 (95% CI 0.38 to 0.66), omalizumab RR 0.56 (95% CI 0.40 to 0.77), and reslizumab RR 0.46 (95% CI 0.37 to 0.58). Benralizumab, dupilumab and mepolizumab reduce the daily dose of oral corticosteroids (OCS) with high certainty of evidence. All evaluated biologicals probably improve asthma control, QoL and FEV1, without reaching the minimal important difference (moderate certainty). Benralizumab, mepolizumab and reslizumab slightly increase drug‐related adverse events (AE) and drug‐related serious AE (low to very low certainty of evidence). The incremental cost‐effectiveness ratio per quality adjusted life‐years value is above the willingness to pay threshold for all biologicals (moderate certainty). Potential savings are driven by decrease in hospitalisations, emergency and primary care visits.

There is high certainty that all approved biologicals reduce the rate of severe asthma exacerbations and for benralizumab, dupilumab and mepolizumab for reducing OCS. There is moderate certainty for improving asthma control, QoL, FEV1 and cost‐effectiveness. More data on long term safety are needed together with more efficacy data in the paediatric population.

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