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Chronic oral corticosteroids use and persistent eosinophilia in severe asthmatics from the Belgian severe asthma registry

Simon Graff, Sarah Vanwynsberghe (UGent) , Guy Brusselle (UGent) , S. Hanon, C. Sohy, L. J. Dupont, R. Peche, A. Michils, C. Pilette, Guy Joos (UGent) , et al.
(2020) RESPIRATORY RESEARCH. 21(1).
Author
Organization
Abstract
Background Severe asthma (SA) may require frequent courses or chronic use of oral corticosteroids (OCS), inducing many known side effects and complications. Therefore, it is important to identify risk factors of chronic use of OCS in SA, considering the heterogeneity of clinical and inflammatory asthma phenotypes. Another aim of the present analysis is to characterize a subpopulation of severe asthmatics, in whom blood eosinophil counts (BEC) remain elevated despite chronic OCS treatment. Methods In a cross-sectional analysis of 982 SA patients enrolled in the Belgian Severe Asthma Registry (BSAR) between March 2009 and February 2019, we investigated the characteristics of the OCS treated patients with special attention to their inflammatory profile. Results At enrollment, 211 (21%) SA patients were taking maintenance OCS (median dose: 8 [IQR: 5-10]) mg prednisone equivalent). BEC was high (> 400/mm(3)) in 44% of the OCS treated population. Multivariable logistic regression analysis showed that risk factors for chronic use of OCS in SA were late-onset asthma (i.e. age of onset > 40 yr), frequent exacerbations (i.e. >= 2 exacerbations in the previous year) and non-atopic asthma. Late-onset asthma was also a predictor for persistently high BEC in OCS treated SA patients. Conclusion These data showed a significant association between a persistently high BEC and late-onset asthma in OCS treated SA patients. Whether it is poor compliance to treatment or corticosteroid insensitivity the reasons for this association warrants further investigation.
Keywords
MEPOLIZUMAB, QUESTIONNAIRE, VALIDITY, Asthma, Blood eosinophils, Oral corticosteroids

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MLA
Graff, Simon, et al. “Chronic Oral Corticosteroids Use and Persistent Eosinophilia in Severe Asthmatics from the Belgian Severe Asthma Registry.” RESPIRATORY RESEARCH, vol. 21, no. 1, 2020, doi:10.1186/s12931-020-01460-7.
APA
Graff, S., Vanwynsberghe, S., Brusselle, G., Hanon, S., Sohy, C., Dupont, L. J., … Schleich, F. N. (2020). Chronic oral corticosteroids use and persistent eosinophilia in severe asthmatics from the Belgian severe asthma registry. RESPIRATORY RESEARCH, 21(1). https://doi.org/10.1186/s12931-020-01460-7
Chicago author-date
Graff, Simon, Sarah Vanwynsberghe, Guy Brusselle, S. Hanon, C. Sohy, L. J. Dupont, R. Peche, et al. 2020. “Chronic Oral Corticosteroids Use and Persistent Eosinophilia in Severe Asthmatics from the Belgian Severe Asthma Registry.” RESPIRATORY RESEARCH 21 (1). https://doi.org/10.1186/s12931-020-01460-7.
Chicago author-date (all authors)
Graff, Simon, Sarah Vanwynsberghe, Guy Brusselle, S. Hanon, C. Sohy, L. J. Dupont, R. Peche, A. Michils, C. Pilette, Guy Joos, R. E. Louis, and F. N. Schleich. 2020. “Chronic Oral Corticosteroids Use and Persistent Eosinophilia in Severe Asthmatics from the Belgian Severe Asthma Registry.” RESPIRATORY RESEARCH 21 (1). doi:10.1186/s12931-020-01460-7.
Vancouver
1.
Graff S, Vanwynsberghe S, Brusselle G, Hanon S, Sohy C, Dupont LJ, et al. Chronic oral corticosteroids use and persistent eosinophilia in severe asthmatics from the Belgian severe asthma registry. RESPIRATORY RESEARCH. 2020;21(1).
IEEE
[1]
S. Graff et al., “Chronic oral corticosteroids use and persistent eosinophilia in severe asthmatics from the Belgian severe asthma registry,” RESPIRATORY RESEARCH, vol. 21, no. 1, 2020.
@article{8690460,
  abstract     = {{Background Severe asthma (SA) may require frequent courses or chronic use of oral corticosteroids (OCS), inducing many known side effects and complications. Therefore, it is important to identify risk factors of chronic use of OCS in SA, considering the heterogeneity of clinical and inflammatory asthma phenotypes. Another aim of the present analysis is to characterize a subpopulation of severe asthmatics, in whom blood eosinophil counts (BEC) remain elevated despite chronic OCS treatment. Methods In a cross-sectional analysis of 982 SA patients enrolled in the Belgian Severe Asthma Registry (BSAR) between March 2009 and February 2019, we investigated the characteristics of the OCS treated patients with special attention to their inflammatory profile. Results At enrollment, 211 (21%) SA patients were taking maintenance OCS (median dose: 8 [IQR: 5-10]) mg prednisone equivalent). BEC was high (> 400/mm(3)) in 44% of the OCS treated population. Multivariable logistic regression analysis showed that risk factors for chronic use of OCS in SA were late-onset asthma (i.e. age of onset > 40 yr), frequent exacerbations (i.e. >= 2 exacerbations in the previous year) and non-atopic asthma. Late-onset asthma was also a predictor for persistently high BEC in OCS treated SA patients. Conclusion These data showed a significant association between a persistently high BEC and late-onset asthma in OCS treated SA patients. Whether it is poor compliance to treatment or corticosteroid insensitivity the reasons for this association warrants further investigation.}},
  articleno    = {{214}},
  author       = {{Graff, Simon and Vanwynsberghe, Sarah and Brusselle, Guy and Hanon, S. and Sohy, C. and Dupont, L. J. and Peche, R. and Michils, A. and Pilette, C. and Joos, Guy and Louis, R. E. and Schleich, F. N.}},
  issn         = {{1465-993X}},
  journal      = {{RESPIRATORY RESEARCH}},
  keywords     = {{MEPOLIZUMAB,QUESTIONNAIRE,VALIDITY,Asthma,Blood eosinophils,Oral corticosteroids}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{11}},
  title        = {{Chronic oral corticosteroids use and persistent eosinophilia in severe asthmatics from the Belgian severe asthma registry}},
  url          = {{http://doi.org/10.1186/s12931-020-01460-7}},
  volume       = {{21}},
  year         = {{2020}},
}
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