Oral corticosteroid sparing effects of anti-IL5/ anti-IL5 receptor treatment after 2 years of treatment

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INTRODUCTION: Clinical trials have shown oral corticosteroid (OCS) sparing effects of anti-IL5/anti-IL5-receptor treatments. The generalisability of these clinical trials may be limited, due to the rigid inclusion and exclusion criteria, and the short tapering duration. Real-world evidence is needed to bridge the gap between the clinical trials and the clinical practice. With this study we present real-life data on the OCS sparing effects of anti-IL5/anti-IL5-receptor treatments after 12 and 24 months of treatment.

METHODS: Severe, eosinophilic asthma patients treated with mepolizumab, reslizumab or benralizumab for 24 months were included in this observational study. Data on OCS-dose, FEV1, ACT/ACQ score and blood eosinophils were obtained from the patients records before anti-IL5/anti-IL5-receptor treatment, and after 12 and 24 months of treatment.

RESULTS: At baseline 75% of patients were on daily OCS. This number was reduced to 50% after one year of treatment, p < 0.001, and 28% after two years of treatment, p < 0.001. Within the group on daily OCS the median daily dose was reduced from 10 mg of Prednisolone at baseline (IQR 5-20) to 3.75 mg Prednisolone (IQR 0-10) after 12 months, and 0 mg Prednisolone (IQR 0-7.5) after 24 months, p < 0.001.

CONCLUSIONS: The findings in this study add to the generalisability of the clinical studies, showing significant OCS sparing effects of anti-IL5/anti-IL5-receptor treatment in a real-life setting. Furthermore, these findings add to the understanding of the long-term effects of anti-IL5/anti-IL5-receptor treatment, showing an even further and persistent OCS reduction after two years of treatment.

TidsskriftRespiratory Medicine
StatusUdgivet - jan. 2021

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