Study design (if review, criteria of inclusion for studies)
Randomised, single-blind, placebo-controlled cross over
Participants
11 participants (8 males), age range 8 - 29 years, mean (SEM) age 18.1 (2.0) years. Normal nutritional status. Schwachman score ranged from 53 to 97. Other medication discontinued before study commenced
Interventions
2 ml placebo (0.9 % hypertonic saline solution) or 2 ml ipratropium bromide solution (Atrovent® = 250 μg in 1 ml hypertonic saline solution) on different days in the space of 2 weeks
Outcome measures
Lung function (FEV1, FEF25-75%, RV, TLC) measured before, then 30, 60 and 120 min after inhalation
Main results
The mean figures for the changes in FEV1.0, FEF25-75%, RV and TLC after inhalation of IB and placebo did not differ significantly. However, FEV1.0 and FEF25-75% after administration of IB increased in 4 out of 11 patients, and decreased in one. The lung volumes changed significantly in only a single case.
Authors' conclusions
This variable effect of inhaled IB in CF patients is in agreement with findings that have been observed for other substances with a "bronchodilatory" effect in patients with CF.