Azithromycin in Patients With Cystic Fibrosis Chronically Infected With Pseudomonas aeruginosa: A Randomized Controlled Trial
Abstract
CONTEXT: Treatment strategies for cystic fibrosis (CF) lung disease include antibiotics, mucolytics, and anti-inflammatory therapies. Increasing evidence suggests that macrolide antibiotics might be beneficial in patients with CF. OBJECTIVE: To determine if an association between azithromycin use and pulmonary function exists in patients with CF. DESIGN AND SETTING: A multicenter, randomized, double-blind, placebo-controlled trial conducted from December 15, 2000, to May 2, 2002, at 23 CF care centers in the United States. PARTICIPANTS: Of the 251 screened participants with a diagnosis of CF, 185 (74%) were randomized. Eligibility criteria included age 6 years or older, infection with Pseudomonas aeruginosa for 1 or more years, and a forced expiratory volume in 1 second (FEV1) of 30% or more. Participants were stratified by FEV1 (> or =60% predicted vs <60% predicted), weight of less than 40 kg vs 40 kg or more, and CF center. INTERVENTION: The active group (n = 87) received 250 mg (weight <40 kg) or 500 mg (weight > or =40 kg) of oral azithromycin 3 days a week for 168 days; placebo group (n = 98) received identically packaged tablets. MAIN OUTCOME MEASURES: Change in FEV1 from day 0 to completion of therapy at day 168 and determination of safety. Secondary outcomes included pulmonary exacerbations and weight gain. RESULTS: The azithromycin group had a mean 0.097-L (SD, 0.26) increase in FEV1 at day 168 compared with 0.003 L (SD, 0.23) in the placebo group (mean difference, 0.094 L; 95% confidence interval [CI], 0.023-0.165; P =.009). Nausea occurred in 17% more participants in the azithromycin group (P =.01), diarrhea in 15% more (P =.009), and wheezing in 13% more (P =.007). Participants in the azithromycin group had less risk of experiencing an exacerbation than participants in the placebo group (hazard ratio, 0.65; 95% CI, 0.44-0.95; P =.03) and weighed at the end of the study an average 0.7 kg more than participants receiving placebo (95% CI, 0.1-1.4 kg; P =.02). CONCLUSION: Azithromycin treatment was associated with improvement in clinically relevant end points and should be considered for patients with CF who are 6 years or older and chronically infected with P aeruginosa.
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The intervention most consistently proven to decrease exacerbation frequency in COPD, cystic fibrosis, and bronchiectasis is azithromycin.
“The intervention most consistently proven to decrease exacerbation frequency (in COPD,143 cystic fibrosis144 and bronchiectasis145) is azithromycin, a macrolide antibiotic.”
From The microbiome and critical illness (2016) · cites this paper as [144]
At the current pace of development, point-of-care community sequencing and identification of pathogens will be available and affordable within years rather than decades.
“At the current pace of development, point-of-care community sequencing and identification of pathogens will be available and affordable within years rather than decades.”
From The microbiome and critical illness (2016) · cites this paper as [144]
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- Authors
- Saiman, L., Marshall, B. C., Mayer-Hamblett, N., Burns, J. L., Quittner, A. L., Cibene, D. A., Coquillette, S., Fieberg, A. Y., Accurso, F. J., Campbell III, P. W., & for the Macrolide Study Group
- Affiliations
- Columbia University Irving Medical Center (US)
- University of Utah (US)
- University of Washington (US)
- University of Florida (US)
- University of Colorado Denver (US)
- Venue
- JAMA
- Publisher
- American Medical Association (AMA)
- Published
- 2003-10-01
- Volume
- 290
- Issue
- 13
- Pages
- 1749
- ISSN
- 0002-9955 (ISSN-L)
- 0098-7484
- OpenAlex
- W2090648579
- Cited by
- 958
- References
- 28
- Citations by year
- 2026: 7 · 2025: 20 · 2024: 24 · 2023: 21 · 2022: 35 · 2021: 34 · 2020: 42 · 2019: 38 · 2018: 36 · 2017: 40 · 2016: 38 · 2015: 62 · 2014: 44 · 2013: 61 · 2012: 62
- FWCI
- 33.58
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- JAMA (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cystic Fibrosis Research Advances
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
- Keywords
- cystic fibrosis, azithromycin, macrolide antibiotics, Pseudomonas aeruginosa, chronic lung infection, lung function, FEV1, pulmonary exacerbations, weight gain, adverse drug reactions, nausea and diarrhea, wheezing, long-term antibiotic therapy, anti-inflammatory therapy, mucolytic agents, children and adults
- MeSH terms
- Adolescent, Anti-Bacterial Agents, Child, Chronic Disease, Cystic Fibrosis, Double-Blind Method, Female, Forced Expiratory Flow Rates, Hospitalization, Humans, Male, Pancreatic Elastase, Pseudomonas Infections, Quality of Life, Proportional Hazards Models, Interleukin-8, Treatment Outcome, Azithromycin
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