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Beclomethasone diproprionate reduced airway inflammation without adrenal suppression in young children with cystic fibrosis: A pilot study † ‡
Author(s) -
Wojtczak Henry A.,
Kerby Gwendolyn S.,
Wagener Jeffrey S.,
Copenhaver Steven C.,
Gotlin Ronald W.,
Riches David W.H.,
Accurso Frank J.
Publication year - 2001
Publication title -
pediatric pulmonology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.866
H-Index - 106
eISSN - 1099-0496
pISSN - 8755-6863
DOI - 10.1002/ppul.1122
Subject(s) - medicine , bronchoalveolar lavage , cystic fibrosis , neutrophil elastase , inflammation , urine , corticosteroid , asthma , immunology , airway , endocrinology , gastroenterology , lung , anesthesia
Inhaled corticosteroids are commonly used in cystic fibrosis (CF), but there are few studies evaluating their safety in young children. We, therefore, prospectively administered beclomethasone diproprionate (BDP) to 12 clinically stable young children with CF to examine the safety of this therapy with respect to adrenal suppression and airway infection. To determine potential mechanisms of corticosteroid action in CF, we also examined airway markers of inflammation before and after inhaled steroid treatment. BDP 210 μg twice a day was given via spacer for 2 months. Twelve‐hour serum and urine cortisols and response to low‐dose synthetic ACTH cortisol stimulation were assessed. Bronchoalveolar lavage fluid (BALF) was examined pre‐ and posttreatment with BDP by quantitative bacteriology and indices of airway inflammation, including levels of total neutrophils, neutrophil elastase‐α‐1 antiprotease complexes (NEAP), CA 19‐9 mucin‐associated antigen, interleukin‐8 (IL‐8), and macrophage IL‐8 mRNA. Following 2 months of treatment, serum and urine cortisol levels were unchanged. Response to low‐dose ACTH cortisol stimulation was not significantly decreased at 30 min. Posttreatment BALF bacterial density was not statistically different from pretreatment; however, one patient who was initially culture negative became culture‐positive with Hemophilus influenzae . BALF total neutrophil counts, corrected for epithelial lining fluid dilution, were decreased to approximately one third of pretreatment values ( P = 0.03). NEAP and CA 19‐9 mucin‐associated antigen demonstrated similar decreases. BALF IL‐8 levels and macrophage IL‐8 mRNA levels were not statistically changed. These findings suggest that treatment with BDP 420 μg per day for 2 months in young children with CF does not affect urine and blood cortisol, causes no decrease in adrenal reserve, and does not result in a clinically significant increase in airway infection. In addition, the fall in bronchoalveolar lavage fluid inflammatory markers following BDP suggests possible modulation of neutrophil influx into the CF airway and provides justification for further studies of inhaled corticosteroids in CF. Pediatr Pulmonol. 2001; 32:293–302. © 2001 Wiley‐Liss, Inc.