Abstract
A double-blind, randomized, crossover study was done to determine the efficacy of colchicine in 30 atopic children with moderately severe asthma. A constant dose of sustained-release theophylline and salbutamol by inhalation, as needed, was administered to all patients. Compared to placebo, colchicine, 0.5 mg twice daily, significantly reduced morning tightness and nocturnal asthma score. There was, however, no significant difference between colchicine and placebo for cough, daytime asthma, or daily combined symptom scores for each patient. Colchicine did not significantly decrease beta-2 agonist inhaler use when compared with placebo. Similarly, there was no statistically significant difference between placebo and colchicine therapy as far as pulmonary function tests and peak flow reversibility were concerned. Thus, colchicine administered for 4 weeks demonstrated insufficient antiasthma activity. Colchicine-induced clinical improvement that was reported in a previous study may be due to selection of patients with mild asthma symptoms. However, our group, comprised of moderately severe asthmatic patients, did not show a satisfactory clinical response.
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