IMPORTANCE: Macrolide antibiotics have been shown beneficial in cystic fibrosis (CF) and diffuse panbronchiolitis, and earlier findings also suggest a benefit in non-CF bronchiectasis. OBJECTIVE: To determine the efficacy of macrolide maintenance treatment for adults with non-CF bronchiectasis. DESIGN, SETTING, AND PARTICIPANTS: The BAT (Bronchiectasis and Long-term Azithromycin Treatment) study, a randomized, double-blind, placebo-controlled trial conducted between April 2008 and September 2010 in 14 hospitals in The Netherlands among 83 outpatients with non-CF bronchiectasis and 3 or more lower respiratory tract infections in the preceding year. INTERVENTIONS:Azithromycin (250 mg daily) or placebo for 12 months. MAIN OUTCOME MEASURES: Number of infectious exacerbations during 12 months of treatment. Secondary end points included lung function, sputum bacteriology, inflammatory markers, adverse effects, symptom scores, and quality of life. RESULTS: Forty-three participants (52%) received azithromycin and 40 (48%) received placebo and were included in the modified intention-to-treat analysis. At end of study, the median number of exacerbations in the azithromycin group was 0 (interquartile range [IQR], 0-1), compared with 2 (IQR, 1-3) in the placebo group (P < .001). Thirty-two (80%) placebo-treated vs 20 (46%) azithromycin-treated individuals had at least 1 exacerbation (hazard ratio, 0.29 [95% CI, 0.16-0.51]). In a mixed-model analysis, change in forced expiratory volume in the first second of expiration (percent of predicted) over time differed between groups (F1,78.8 = 4.085, P = .047), with an increase of 1.03% per 3 months in the azithromycin group and a decrease of 0.10% per 3 months in the placebo group. Gastrointestinal adverse effects occurred in 40% of patients in the azithromycin group and in 5% in the placebo group (relative risk, 7.44 [95% CI, 0.97-56.88] for abdominal pain and 8.36 [95% CI, 1.10-63.15] for diarrhea) but without need for discontinuation of study treatment. A macrolide resistance rate of 88% was noted in azithromycin-treated individuals, compared with 26% in the placebo group. CONCLUSIONS AND RELEVANCE: Among adults with non-CF bronchiectasis, the daily use of azithromycin for 12 months compared with placebo resulted in a lower rate of infectious exacerbations. This could result in better quality of life and might influence survival, although effects on antibiotic resistance need to be considered. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00415350.
RCT Entities:
IMPORTANCE: Macrolide antibiotics have been shown beneficial in cystic fibrosis (CF) and diffuse panbronchiolitis, and earlier findings also suggest a benefit in non-CF bronchiectasis. OBJECTIVE: To determine the efficacy of macrolide maintenance treatment for adults with non-CF bronchiectasis. DESIGN, SETTING, AND PARTICIPANTS: The BAT (Bronchiectasis and Long-term Azithromycin Treatment) study, a randomized, double-blind, placebo-controlled trial conducted between April 2008 and September 2010 in 14 hospitals in The Netherlands among 83 outpatients with non-CF bronchiectasis and 3 or more lower respiratory tract infections in the preceding year. INTERVENTIONS:Azithromycin (250 mg daily) or placebo for 12 months. MAIN OUTCOME MEASURES: Number of infectious exacerbations during 12 months of treatment. Secondary end points included lung function, sputum bacteriology, inflammatory markers, adverse effects, symptom scores, and quality of life. RESULTS: Forty-three participants (52%) received azithromycin and 40 (48%) received placebo and were included in the modified intention-to-treat analysis. At end of study, the median number of exacerbations in the azithromycin group was 0 (interquartile range [IQR], 0-1), compared with 2 (IQR, 1-3) in the placebo group (P < .001). Thirty-two (80%) placebo-treated vs 20 (46%) azithromycin-treated individuals had at least 1 exacerbation (hazard ratio, 0.29 [95% CI, 0.16-0.51]). In a mixed-model analysis, change in forced expiratory volume in the first second of expiration (percent of predicted) over time differed between groups (F1,78.8 = 4.085, P = .047), with an increase of 1.03% per 3 months in the azithromycin group and a decrease of 0.10% per 3 months in the placebo group. Gastrointestinal adverse effects occurred in 40% of patients in the azithromycin group and in 5% in the placebo group (relative risk, 7.44 [95% CI, 0.97-56.88] for abdominal pain and 8.36 [95% CI, 1.10-63.15] for diarrhea) but without need for discontinuation of study treatment. A macrolide resistance rate of 88% was noted in azithromycin-treated individuals, compared with 26% in the placebo group. CONCLUSIONS AND RELEVANCE: Among adults with non-CF bronchiectasis, the daily use of azithromycin for 12 months compared with placebo resulted in a lower rate of infectious exacerbations. This could result in better quality of life and might influence survival, although effects on antibiotic resistance need to be considered. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00415350.
Authors: Francisco A Bonilla; Isil Barlan; Helen Chapel; Beatriz T Costa-Carvalho; Charlotte Cunningham-Rundles; M Teresa de la Morena; Francisco J Espinosa-Rosales; Lennart Hammarström; Shigeaki Nonoyama; Isabella Quinti; John M Routes; Mimi L K Tang; Klaus Warnatz Journal: J Allergy Clin Immunol Pract Date: 2015-11-07
Authors: Elena Laserna; Oriol Sibila; Juan Felipe Fernandez; Diego Jose Maselli; Eric M Mortensen; Antonio Anzueto; Grant Waterer; Marcos I Restrepo Journal: Chest Date: 2014-05 Impact factor: 9.410
Authors: Emily Henkle; Timothy R Aksamit; Alan F Barker; Jeffrey R Curtis; Charles L Daley; M Leigh Anne Daniels; Angela DiMango; Edward Eden; Kevin Fennelly; David E Griffith; Margaret Johnson; Michael R Knowles; Amy Leitman; Philip Leitman; Elisha Malanga; Mark L Metersky; Peadar G Noone; Anne E O'Donnell; Kenneth N Olivier; Delia Prieto; Matthias Salathe; Byron Thomashow; Gregory Tino; Gerard Turino; Susan Wisclenny; Kevin L Winthrop Journal: Chest Date: 2017-05-05 Impact factor: 9.410