Drug Eluting Balloon Versus Drug Eluting Stent in PCI

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Lupi Alessandro, Azienda Ospedaliero Universitaria Maggiore della Carita
ClinicalTrials.gov Identifier:
NCT01760200
First received: December 16, 2012
Last updated: January 2, 2013
Last verified: January 2013
  Purpose

Drug eluting balloons (DEB) have been developed to overcome the limitations of drug eluting stent (DES), but clinical results of different studies about DEB are not consistent.

Thus, we planned a meta-analysis to compare outcomes of DEB and DES in coronary artery disease (CAD).


Condition
Coronary Artery Disease

Study Type: Observational
Study Design: Time Perspective: Retrospective
Official Title: Drug Eluting Balloon Versus Drug Eluting Stent in Coronary Artery Disease PCI: Insights From a Meta-analysis of 1462 Patients

Resource links provided by NLM:


Further study details as provided by Azienda Ospedaliero Universitaria Maggiore della Carita:

Primary Outcome Measures:
  • Overall mortality [ Time Frame: 1 year ] [ Designated as safety issue: No ]
    mortality rate from all cause


Secondary Outcome Measures:
  • Myocardial infarction rates [ Time Frame: 1 year ] [ Designated as safety issue: No ]
    Myocardial infarction rates

  • Target vessel revascularization [ Time Frame: 1 year ] [ Designated as safety issue: No ]
    symptoms or ischemia driven new revascularization of the coronary artery already treated with DEB at baseline


Enrollment: 1462
Study Start Date: August 2012
Study Completion Date: December 2012
Primary Completion Date: December 2012 (Final data collection date for primary outcome measure)
Groups/Cohorts
Drug eluting balloon angioplasty
Drug eluting balloon angioplasty
Drug eluting stent group
Drug eluting stent intervention

  Hide Detailed Description

Detailed Description:

Drug eluting balloons (DEB) have been developed to overcome the limitations of drug eluting stent (DES), but clinical results of different studies about DEB are not consistent. Thus, we performed a meta-analysis to compare outcomes of DEB and DES in coronary artery disease (CAD).

The meta-analysis was performed according to the recommended methods [14-15]. A systematic search for eligible studies involved MEDLINE, CENTRAL, Embase, Highwire Press, Scopus and Google Scholar databases and was conducted without language restriction by two independent investigators (A.L. and A.R.), using the following keywords: "drug", "eluting" "balloon(s)", "DEB", "coronary", "angioplasty". Divergences were resolved by consensus. Endnote software v. 10 was used to build up libraries of results that were combined after erasing duplicates. The references of retrieved studies were searched manually for additional trials, and efforts to contact authors were performed to obtain further study details or additional references. The search is updated to December 2012.

Selection criteria: citations were screened at title and abstract level and retrieved as full reports.

  • Inclusion criteria were: 1) randomized studies or cohort studies reporting a comparison between a DEB treated group and a DES treated group; 2) availability of reports of late lumen loss (LLL) and/or overall death and/or myocardial infarction (MI) and/or stent thrombosis (ST) and/or target lesion revascularization (TLR).
  • Exclusion criteria were: 1) duplicate reporting (in which case the manuscript reporting the largest sample or the longest follow-up was selected), 2) follow up of at least 6 months; 3) studies presenting composite major adverse cardiac events (MACE) without mentioning individual end points. Data were abstracted on pre-specified forms by 2 unblinded reviewers; divergences were resolved by consensus.

Internal validity : the present meta-analysis was performed according to the Guidelines for randomized controlled trials of the Cochrane Collaboration and for non randomized studies in compliance with the Guidelines of the MOOSE group. Quality of included studies was appraised by 2 unblinded investigators. The risk of selection, performance, detection, and attrition bias (expressed as low risk of bias [A], moderate risk of bias [B], high risk of bias [C], or incomplete reporting leading to inability to ensure the underlying risk of bias [D]) were evaluated separately, as recommended. Non-randomized studies were evaluated using the Newcastle-Ottawa Scale a validated technique in assessing the quality of non-randomized studies.

Data analysis and synthesis: Odds ratios (ORs) were computed from individual studies and pooled according to a fixed effect (e.g. inverse variance weighting) or random effect model in case of statistical heterogeneity. Two separate subgroup analysis were pre-specified: 1) exclusion of studies with small vessel and bifurcation PCI; 2) exclusion of non-randomized studies 3) exclusion of studies in which DEBs were not used together with BMS deployment.

Results will be presented as overall meta-analysis and subgroups meta-analyses for DEB vs DES comparisons. Outcomes appraised were in-stent LLL, overall death, MI, ST and TLR. We used the Mantel-Haenszel method for combining ORs, a validated method to pool the data in a meta-analysis of binary outcomes. For the in-stent LLL outcome, the mean difference of 6-month LLL compared with baseline was used and the overall weighted mean difference (WMD) was built with the inverse variance method. Heterogeneity was assessed by Cochran's Q test, with 2-tailed p=0.1. Statistical inconsistency test (I2) was also employed to overcome the low statistical power of Cochran's Q test. The potential publication bias was examined by constructing a "funnel plot", in which sample size was plotted against odds ratios. In addition, a mathematical estimate of the asymmetry of this plot was provided by a linear regression approach. Asymmetry was considered to be present if the intercept of the regression line did deviate significantly from zero. To explore and mitigate heterogeneity, pre-specified covariates (prevalence of diabetes in the study population and reference coronary vessel diameter) as potential confounders were considered in the meta-regression analysis.

Pooling of data, subgroup analyses and publication bias tests were performed with Review Manager 5.1 (The Nordic Cochrane Center, Købehvn, Denmark) and StatsDirect v 2.7.8 (StatsDirect Ltd, Cheshire WA, UK). Meta-regression analyses were builded with Comprehensive Meta-analysis Version 2 (Biostat, Englewood, New Jersey, United States).

  Eligibility

Ages Eligible for Study:   18 Years to 89 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Patient with CAD treated by coronary angiogrphy

Criteria

Inclusion Criteria:

  • randomized studies or cohort studies reporting a comparison between a DEB treated group and a DES treated group
  • availability of reports of late lumen loss (LLL) and/or overall death and/or myocardial infarction (MI) and/or stent thrombosis (ST) and/or target lesion revascularization (TLR).

Exclusion Criteria:

  • duplicate reporting (in which case the manuscript reporting the largest sample or the longest follow-up was selected)
  • follow up of at least 1 year
  • studies presenting composite major adverse cardiac events (MACE) without mentioning individual end points.
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01760200

Locations
Italy
Azienda Ospedaliero Universitaria Maggiore della Carita
Novara, Piedmont, Italy, 28100
Sponsors and Collaborators
Azienda Ospedaliero Universitaria Maggiore della Carita
Investigators
Principal Investigator: Alessandro Lupi, MD AO Maggiore della Carita
  More Information

No publications provided

Responsible Party: Lupi Alessandro, M.D., Azienda Ospedaliero Universitaria Maggiore della Carita
ClinicalTrials.gov Identifier: NCT01760200     History of Changes
Other Study ID Numbers: 0000003
Study First Received: December 16, 2012
Last Updated: January 2, 2013
Health Authority: Italy: National Institute of Health

Keywords provided by Azienda Ospedaliero Universitaria Maggiore della Carita:
Coronary angioplasty
Coronary stent
paclitaxel drug-eluting stent
drug eluting balloon

Additional relevant MeSH terms:
Coronary Artery Disease
Coronary Disease
Myocardial Ischemia
Arterial Occlusive Diseases
Arteriosclerosis
Cardiovascular Diseases
Heart Diseases
Vascular Diseases

ClinicalTrials.gov processed this record on October 29, 2014