Clinical Research Directory

Effect of Biologicals on Alternative Functions of Eosinophils in Severe Asthma

Sponsor: University of Liege

Summary

The investigators will measure different cytokines in the sputum (interleukin ((IL))-3, granulocyte-macrophage colony-stimulating factor ((GM-CSF)), IL5, IL-13, IL-33, IL-4, IL-25 thymic stromal lymphopoietin ((TSLP)) and eotaxin-1 ) and in the blood to evaluate their ability to predict the response after 6 months and 1 year of treatment with a biologic treatment (anti-IgE, anti-IL5, anti-IL5R) in terms of reduction in exacerbations and corticosteroid use, improvement in Forced expiratory volume in the first second (FEV1) (+200ml), in asthma control (ACQ decrease \>0.5, ACT increase \>3), in asthma quality of life (increase in AQLQ score \> 0.5) and the effect on sputum and blood inflammation.

Official title: Effect of Anti-IL5 and Anti-IgE on Alternative Functions of Eosinophils in Severe Asthma

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