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Small airway deposition of dornase alfa during exacerbations in cystic fibrosis; a randomized controlled clinical trial.
MedLine Citation:
PMID:  23913868     Owner:  NLM     Status:  Publisher    
INTRODUCTION: Small airway obstruction is important in the pathophysiology of cystic fibrosis (CF) lung disease. Additionally, many CF patients lose lung function in the long term as a result of respiratory tract exacerbations (RTEs). No trials have been performed to optimize mucolytic therapy during a RTE. We investigated whether specifically targeting dornase alfa to the small airways improves small airway obstruction during RTEs.
METHODS: In a multi-center, double-blind, randomized controlled trial CF patients hospitalized for a RTE and on maintenance treatment with dornase alfa were switched to a smart nebulizer. Patients were randomized to small airway deposition (n = 19) or large airway deposition (n = 19) of dornase alfa for at least 7 days. Primary endpoint was forced expiratory flow at 75% of forced vital capacity (FEF75 ).
MAIN RESULTS: Spirometry parameters improved significantly during admission, but the difference in mean change in FEF75 between treatment groups was not significant: 0.7 SD, P = 0.30. FEF25-75 , FEV1 , nocturnal oxygen saturation and diary symptom scores also did not differ between groups.
CONCLUSIONS: This study did not detect a difference if inhaled dornase alfa was targeted to small versus large airways during a RTE. However, the 95% confidence interval for the change in FEF75 was wide. Further studies are needed to improve the effectiveness of RTE treatment in CF. Pediatr Pulmonol. © 2013 Wiley Periodicals, Inc.
E M Bakker; S Volpi; E Salonini; B Müllinger; P Kroneberg; M Bakker; W C J Hop; B M Assael; H A W M Tiddens
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-7-3
Journal Detail:
Title:  Pediatric pulmonology     Volume:  -     ISSN:  1099-0496     ISO Abbreviation:  Pediatr. Pulmonol.     Publication Date:  2013 Jul 
Date Detail:
Created Date:  2013-8-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8510590     Medline TA:  Pediatr Pulmonol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Wiley Periodicals, Inc.
Department of Paediatric Pulmonology and Allergology, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
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