- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT01760200
Drug Eluting Balloon Versus Drug Eluting Stent in PCI
Drug Eluting Balloon Versus Drug Eluting Stent in Coronary Artery Disease PCI: Insights From a Meta-analysis of 1462 Patients
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).
Descripción general del estudio
Estado
Condiciones
Descripción detallada
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).
Tipo de estudio
Inscripción (Actual)
Contactos y Ubicaciones
Ubicaciones de estudio
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Piedmont
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Novara, Piedmont, Italia, 28100
- Azienda Ospedaliero Universitaria Maggiore della Carita
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Método de muestreo
Población de estudio
Descripción
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.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
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Drug eluting balloon angioplasty
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Drug eluting stent group
Drug eluting stent intervention
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Overall mortality
Periodo de tiempo: 1 year
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mortality rate from all cause
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1 year
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Myocardial infarction rates
Periodo de tiempo: 1 year
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Myocardial infarction rates
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1 year
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Target vessel revascularization
Periodo de tiempo: 1 year
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symptoms or ischemia driven new revascularization of the coronary artery already treated with DEB at baseline
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1 year
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Colaboradores e Investigadores
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 0000003
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