Evidence map›Paper›PMID 29065885›Full record

Trial reportRespiratory research2017

Serum bilirubin and the risk of chronic obstructive pulmonary disease exacerbations.

Kirstin E Brown, Don D Sin, Helen Voelker, John E Connett, Dennis E Niewoehner, Ken M Kunisaki, COPD Clinical Research Network

2 registry-linked trialsOpen access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Respiratory research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 11% of its field
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.

NCT00325897 nacompletednot on this map

Effect of Chronic Macrolide Administration on the Frequency and Severity of COPD Exacerbations

TypeinterventionalSponsorUniversity of MinnesotaRan2006 to 2010Enrolled1,142ConditionsPulmonary Disease, Chronic ObstructiveArmsMacrolide Antibiotic (Azithromycin), Placebo
NCT01061671 phase3terminatednot on this map

Prospective Randomized Placebo-Controlled Trial of SimvaSTATin in the Prevention of COPD Exacerbations (STATCOPE)

TypeinterventionalSponsorUniversity of MinnesotaRan2010 to 2014Enrolled885ConditionsPulmonary Disease, Chronic ObstructiveArmssimvastatin, Placebo
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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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

7 authors at 3 institutions in 2 countries.

Kirstin E BrownMinneapolis VA Health Care System, Pulmonary, Critical Care, and Sleep Apnea (111N), One Veterans Drive, Minneapolis, MN, 55417, USA.
Don D SinUniversity of British Columbia, Vancouver, BC, Canada.
Helen VoelkerUniversity of Minnesota, Minneapolis, MN, USA.
John E ConnettUniversity of Minnesota, Minneapolis, MN, USA.
Dennis E NiewoehnerMinneapolis VA Health Care System, Pulmonary, Critical Care, and Sleep Apnea (111N), One Veterans Drive, Minneapolis, MN, 55417, USA.
Ken M KunisakiMinneapolis VA Health Care System, Pulmonary, Critical Care, and Sleep Apnea (111N), One Veterans Drive, Minneapolis, MN, 55417, USA. kunis001@umn.edu.
COPD Clinical Research Network
University of Minnesota · USMinneapolis VA Health Care System · USUniversity of British Columbia · CA

Funding

COPD Clinical Research Network - Data Coordinating CenterU10HL074424 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI CONNETT, JOHN E · 2003 to 2011
$21.0M
Novel Strategies Targeting Acute Exacerbation of COPDU10HL074409 · NHLBI · DENVER HEALTH AND HOSPITAL AUTHORITY · PI ALBERT, RICHARD K · 2003 to 2007
$4.1M
COPD Exacerbations: Pharmacogenetic Approaches to TherapyU10HL074428 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI WASHKO, GEORGE R · 2003 to 2007
$3.4M
UAB/BVAMC Clinical Center in COPDU10HL074418 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI DRANSFIELD, MARK T · 2003 to 2007
$3.3M
Strategies to Improve COPD ManagementU10HL074407 · NHLBI · LUNDQUIST INSTITUTE FOR BIOMEDICAL INNOVATION AT HARBOR-UCLA MEDICAL CENTER · PI CASABURI, RICHARD · 2003 to 2007
$3.2M
COPD Clinical Research Network & Clinical Research Skills Core DevelopmentU10HL074408 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI CRINER, GERARD J · 2004 to 2007
$2.7M
Drug therapy for preventing COPD exacerbationsU10HL074416 · NHLBI · MINNESOTA VETERANS RESEARCH INST · PI NIEWOEHNER, DENNIS E. · 2003 to 2007
$2.7M
Clinical Center-COPD Clinical Research NetworkU10HL074441 · NHLBI · UNIVERSITY OF MARYLAND BALTIMORE · PI SCHARF, STEVEN M · 2003 to 2006
$2.6M
COPD Clinical Research NetworkU10HL074431 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LAZARUS, STEPHEN C · 2003 to 2006
$2.2M
Strategies to Prevent COPD ExacerbationU10HL074422 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MARTINEZ, FERNANDO J · 2004 to 2007
$2.0M
COPD Clinical Research NetworkU10HL074439 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SCIURBA, FRANK · 2004 to 2007
$1.7M
CIHRNHLBI NIH HHS U10 HL074407NHLBI NIH HHS U10 HL074408NHLBI NIH HHS U10 HL074409NHLBI NIH HHS U10 HL074416NHLBI NIH HHS U10 HL074418NHLBI NIH HHS U10 HL074422NHLBI NIH HHS U10 HL074424NHLBI NIH HHS U10 HL074428NHLBI NIH HHS U10 HL074431NHLBI NIH HHS U10 HL074439NHLBI NIH HHS U10 HL074441
6 · The paper itself

Abstract

backgroundBilirubin is a potent anti-oxidant and higher serum concentrations of bilirubin have been associated with better lung function, slower lung function decline, and lower incidence of chronic obstructive pulmonary disease (COPD). We sought to determine whether elevated bilirubin blood concentrations are associated with lower risk for acute exacerbations of COPD (AECOPD).

methodsWe performed a secondary analyses of data in the Simvastatin for Prevention of Exacerbations in Moderate-to-Severe COPD (STATCOPE) and the Azithromycin for Prevention of Exacerbations of COPD (MACRO) studies. We used time-dependent multivariable Cox proportional hazards analyses, using bilirubin concentrations prior to first AECOPD as the exposure variable and time to first AECOPD as the outcome variable. STATCOPE was used for model development, with validation in MACRO.

resultsIn STATCOPE (n = 853), higher bilirubin was associated with a lower but statistically insignificant hazard for AECOPD, (adjusted hazard ratio [aHR] 0.89 per log

conclusionsBilirubin may be a biomarker of AECOPD risk and may be a novel therapeutic target to reduce AECOPD risk. TRIAL REGISTRATIONS: ClinicalTrials.gov NCT01061671 (registered 02 February 2010) and ClinicalTrials.gov NCT00325897 (registered 12 May 2006).

Indexed as

Disease ProgressionAgedBilirubinBiomarkersFemaleFollow-Up StudiesHumansMaleMiddle AgedPulmonary Disease, Chronic ObstructiveRisk FactorsBilirubinBiomarkersBilirubinBiomarkerChronic obstructivePulmonary disease

Identifiers

PMID29065885
PMCPMC5655988
OpenAlexW2765124954

What OpenQuestion holds

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Registered trials

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.