Journal
ALLERGY
Volume 61, Issue 5, Pages 537-542Publisher
WILEY
DOI: 10.1111/j.1398-9995.2006.01061.x
Keywords
adenosine monophosphate; asthma; ciclesonide; exhaled nitric oxide; induced sputum
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Background: Ciclesonide exhibits clinical efficacy at 160 mu g (ex-actuator) once daily but the anti-inflammatory effects at this dose are not known. We wished to know whether 4 weeks therapy with ciclesonide pMDI 160 mu g once daily in the morning exhibited significant anti-inflammatory effects. Methods: Seventeen patients with mild persistent asthma (FEV1 3.35 l) were recruited into a double-blind placebo-controlled randomized crossover study. Measurements were made after ciclesonide and placebo treatment as well as after run-in and washout periods, for adenosine monophosphate (AMP) bronchial challenge (primary variable), exhaled nitric oxide (NO) and induced sputum (in a subgroup). Results: The mean (SEM) AMP bronchial challenge PC20 following ciclesonide (140 (63) mg/ml) was significantly (P < 0.001) increased compared with placebo (17 (8) mg/ml), run-in (13 (5) mg/ml) and washout (9 (3) mg/ml) periods. This amounted to an eightfold (CI: 5.3-12.0) for ciclesonide vs placebo. Likewise, there were significant improvements in exhaled NO levels and a significant reduction in induced sputum eosinophil cell counts. Conclusion: We have shown that inhaled ciclesonide given at 160 mu g once daily in the morning exhibits significant anti-inflammatory effects that are in keeping with the previously described clinical effects.
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