PMID: 9163637May 1, 1997Paper

Effect of roxithromycin on airway responsiveness in children with bronchiectasis: a double-blind, placebo-controlled study

The European Respiratory Journal
Y Y KohJ H Chae

Abstract

Increased airway responsiveness (AR) is frequently associated with bronchiectasis. Roxithromycin is a new semisynthetic macrolide antibiotic that also has anti-inflammatory activities. This study was designed to see whether roxithromycin could favourably alter the degree of AR in patients with bronchiectasis and increased AR. Twenty five children with bronchiectasis, who had an increased AR (defined as a provocative concentration of methacholine causing a 20% fall in forced expiratory volume in one second (FEV1) (PC20) <25 mg x mL(-1) evaluated by the dosimeter method), were randomized, double-blind into two parallel groups. Thirteen of the children were treated with roxithromycin (4 mg x kg(-1) b.i.d.) for 12 weeks and 12 received placebo. FEV1, sputum purulence and leucocyte scores were assessed every 3 weeks. To estimate AR, high-dose methacholine challenge tests were performed before and after treatment. On the dose-response curve to methacholine, PD20 and maximal response (two indices of AR) were measured. Changes in FEV1 were not observed during the course of the study in both groups. A significant improvement in sputum features was noted after 6 weeks of treatment in the roxithromycin group. After 12 weeks of roxithromyc...Continue Reading

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