alexa The effects of the inhaled corticosteroid budesonide on lung function and bronchial hyperresponsiveness in adult patients with cystic fibrosis.
Pulmonology

Pulmonology

Journal of Pulmonary & Respiratory Medicine

Author(s): van Haren EH, Lammers JW, Festen J, Heijerman HG, Groot CA,

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Abstract Bronchial hyperresponsiveness is present in 40-60\% of adult patients with cystic fibrosis (CF). Drugs which alter airway hyperresponsiveness have not yet been studied in CF. In this randomized placebo-controlled study, we investigated the effects of an inhaled corticosteroid, budesonide, on lung function and bronchial hyperresponsiveness in adult CF patients, with proven bronchial hyperresponsiveness to histamine. Twelve patients were treated with budesonide, 1600 micrograms day-1, and with placebo during two periods of 6 weeks in a randomized, double-blind, cross-over study. Drug effects were assessed with regard to bronchial hyperresponsiveness to histamine, spirometry and clinical symptom scores. After treatment with budesonide, no significant differences in spirometry were seen, however, bronchial hyperresponsiveness to histamine significantly improved as compared to baseline. Fifty-eight percent of the patients showed at least one doubling-dose increase in PC20 histamine. Daily symptom scores showed small, but statistically significant, improvements in dyspnoea and cough after budesonide treatment. There is increasing evidence suggesting that excessive inflammatory responses contribute to the pulmonary damage that characterizes CF. Treatment with oral corticosteroids improved the clinical course of selected CF patients, but was associated with unacceptable adverse effects. We conclude that daily inhalation of 1600 micrograms day-1 budesonide for 6 weeks induced a small, but significant, improvement in bronchial hyperresponsiveness to histamine, and symptoms of cough and dyspnoea in adult CF patients. Longer observations are needed to establish whether inhaled corticosteroids improve the long term outcome of CF.
This article was published in Respir Med and referenced in Journal of Pulmonary & Respiratory Medicine

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