Evidence map›Paper›PMID 34379371›Full record

ArticleChronic obstructive pulmonary diseases (Miami, Fla.)2021

Comparative Effectiveness of Roflumilast and Azithromycin for the Treatment of Chronic Obstructive Pulmonary Disease.

Jenny Lam, Ivy Tonnu-Mihara, Nicholas J Kenyon, Brooks T Kuhn

Abstract read
In one paragraph

Article in Chronic obstructive pulmonary diseases (Miami, Fla.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Waiting for Actionable Evidence: Roflumilast or Azithromycin?Chronic obstructive pulmonary diseases (Miami, Fla.) · 2022
    Article
  5. Review
  6. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Jenny LamDepartment of Pharmaceutical and Health Economics, School of Pharmacy, University of Southern California, Los Angeles, California, United States.
Ivy Tonnu-MiharaVeterans Affairs Long Beach Healthcare System, Long Beach, California, United States.
Nicholas J KenyonDivision of Pulmonary and Critical Care Medicine, School of Medicine, University of California, Davis, Sacramento, California, United States.
Brooks T KuhnDivision of Pulmonary and Critical Care Medicine, School of Medicine, University of California, Davis, Sacramento, California, United States.

Funding

Defining Breath VOC Biomarkers to Improve Respiratory Health of Exposed VeteransI01BX004965 · VA · VA NORTHERN CALIFORNIA HEALTH CARE SYS · PI HARPER, RICHART W, KENYON, NICHOLAS J. · 2021 to 2025
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BLRD VA I01 BX004965UC Davis Dean's Fellow AwardVA Merit award I01 BX004965-01A1
6 · The paper itself

Abstract

backgroundIn chronic obstructive pulmonary disease (COPD) patients with exacerbations despite optimized bronchodilator therapy, roflumilast and chronic azithromycin are recommended options. Roflumilast is recommended in severe COPD patients with chronic bronchitis, whereas chronic azithromycin is more broadly indicated. The comparative effectiveness between these 2 treatments to reduce exacerbation rate remains unclear.

objectivesOur objective was analysis of the Veterans Health Administration (VHA) database (medication and claims data without lung function or presence of chronic bronchitis or tobacco use) to compare the effectiveness of roflumilast and azithromycin on hospitalizations and mortality.

methodsThe primary outcome of the study was cumulative incidences of first COPD-related and all-cause hospitalization. Sensitivity analysis on hospitalizations was conducted for VHA patients who also had Medicare.

resultsIn 1302 roflumilast and 2573 azithromycin patients, the all-cause mortality rates at 1 year were 19% and 15%, respectively. The median times-to-all-cause death were 47 months (interquartile range [IQR] 16-81) for the roflumilast and 48 months (IQR 20-83) for the azithromycin groups. Roflumilast was associated with higher mortality (hazard ratio [HR] 1.16; 95% confidence interval [CI], 1.04-1.29). Roflumilast showed no significant association for COPD-related hospitalization (subdistribution HR [SHR]=1.14, 95% CI, 1.00-1.29) and all-cause hospitalization (HR 1.07, 95% CI, 0.97-1.18). For patients with Medicare (N=2030), roflumilast was associated with higher COPD-related (SHR 1.21; 95% CI, 1.05-1.41) and all-cause (SHR 1.23; 95% CI, 1.09-1.38) hospitalizations.

conclusionsRoflumilast was associated with higher hazard ratios for death, COPD-related hospitalizations, and all-cause hospitalizations in COPD patients only after adjustment for VHA and external Medicare events. Prospective clinical trials are needed to directly compare the relative efficacy of these therapies.

Indexed as

azithromycinCOPD exacerbationroflumilast

Identifiers

PMID34379371
PMCPMC8686853

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.