Azithromycin and cough-specific health status in patients with chronic obstructive pulmonary disease and chronic cough: a randomised controlled trial.

Abstract:

BACKGROUND:Macrolides reduce exacerbations in patients with COPD. Their effects on health status has not been assessed as primary outcome and is less clear. This study assessed the effects of prophylactic azithromycin on cough-specific health status in COPD-patients with chronic productive cough. METHODS:In this randomised controlled trial 84 patients met the eligibility criteria: age of ≥40 years, COPD GOLD stage ≥2 and chronic productive cough. The intervention-group (n = 42) received azithromycin 250 mg 3 times a week and the control-group (n = 42) received a placebo. Primary outcome was cough-specific health status at 12 weeks, measured with the Leicester Cough Questionnaire (LCQ). Secondary outcomes included generic and COPD-specific health status and exacerbations. Changes in adverse events and microbiology were monitored. RESULTS:Mean age of participants was 68 ± 10 years and mean FEV1 was 1.36 ± 0.47 L. The improvement in LCQ total score at 12 weeks was significantly greater with azithromycin (difference 1.3 ± 0.5, 95% CI 0.3;2.3, p = 0.01) and met the minimal clinically important difference. Similar results were found for the domain scores, and COPD-specific and generic health status questionnaires. Other secondary endpoints were non-significant. No imbalances in adverse events were found. CONCLUSIONS:Prophylactic azithromycin improved cough-specific health status in COPD-patients with chronic productive cough to a clinically relevant degree. TRIAL REGISTRATION:ClinicalTrials.gov NCT01071161.

journal_name

Respir Res

journal_title

Respiratory research

authors

Berkhof FF,Doornewaard-ten Hertog NE,Uil SM,Kerstjens HA,van den Berg JW

doi

10.1186/1465-9921-14-125

subject

Has Abstract

pub_date

2013-11-14 00:00:00

pages

125

eissn

1465-9921

issn

1465-993X

pii

1465-9921-14-125

journal_volume

14

pub_type

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