Severe allergic and eosinophilic asthma
Conditions
Brief summary
The primary criterion for judgment will be the rate of severe exacerbation during one year in patients on omalizumab vs mepolizumab, in the overall population. An additional primary criterion will be the rate of response to omalizumab vs that for mepolizumab, in the overall and stratified population(s).
Detailed description
Clinical features and biomarkers (or array signatures) analyzed in blood, mucosal and urine samples will be tested for their putative ability to predict a better response to oma- or mepolizumab (theranostic value). The candidate features are age at (severe) disease onset and presence of nasal polyps or aspirin hypersensitivity as well as serum specific/total IgE ratio and blood eosinophil levels., Asthma-related outcomes other than exacerbations – i.e. disease control reflected by ACT and ACQ6, asthma-related quality of life questionnaire reflected by AQLQ, lung function reflected by FEV1 % predicted and absolute change - as well as nasal symptoms (VAS and, for nasal polyps, endoscopic scoring) will be assessed in the oma- and mepolizumab groups, in the overall and stratified populations.
Interventions
Sponsors
Eligibility
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary criterion for judgment will be the rate of severe exacerbation during one year in patients on omalizumab vs mepolizumab, in the overall population. An additional primary criterion will be the rate of response to omalizumab vs that for mepolizumab, in the overall and stratified population(s). | — |
Secondary
| Measure | Time frame |
|---|---|
| Clinical features and biomarkers (or array signatures) analyzed in blood, mucosal and urine samples will be tested for their putative ability to predict a better response to oma- or mepolizumab (theranostic value). The candidate features are age at (severe) disease onset and presence of nasal polyps or aspirin hypersensitivity as well as serum specific/total IgE ratio and blood eosinophil levels., Asthma-related outcomes other than exacerbations – i.e. disease control reflected by ACT and ACQ6, asthma-related quality of life questionnaire reflected by AQLQ, lung function reflected by FEV1 % predicted and absolute change - as well as nasal symptoms (VAS and, for nasal polyps, endoscopic scoring) will be assessed in the oma- and mepolizumab groups, in the overall and stratified populations. | — |
Countries
Belgium, France