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Cardiac CAtheterization for Bypass Graft Patency Rate Optimization: the CABG-PRO Randomized-controlled Pilot Study — CABG-PRO  

Coronary Artery Bypass Graft Surgery Clinical Trial

Official title:
Cardiac CAtheterization for Bypass Graft Patency Rate Optimization: the CABG-PRO Randomized-controlled Pilot Study

Clinical Trial Summary

Aortocoronary bypass graft failure is common and is associated with high morbidity and mortality. Failure of saphenous vein grafts is more common than failure of internal mammary artery grafts. Whether early graft angiography can reduce bypass graft failure remains unknown. The Cardiac CAtheterization for Bypass Graft Patency Rate Optimization (CABG-PRO) randomized-controlled pilot study is a phase III, double-blind, randomized-controlled pilot trial that will randomize 170 patients undergoing coronary artery bypass graft surgery to early (before dismissal) graft angiography vs. no early graft angiography. Coronary angiography will be performed at 12 months, to determine whether compared to no early graft angiography, early graft angiography will result in:

1. lower per patient angiographic bypass graft failure (in at least one graft) rates (defined as ≥75% diameter stenosis in at least one bypass graft) (primary efficacy endpoint)

2. lower per graft failure rates, per graft occlusion rates, and per patient bypass graft occlusion rates (in at least one bypass graft) (secondary endpoints)

3. lower incidence major adverse cardiac events (death, nonfatal myocardial infarction, nonfatal stroke, coronary revascularization, and composite of death/myocardial infarction) (secondary endpoint)

Intravascular ultrasonography and near-infrared spectroscopy will also be performed in at least one bypass graft at baseline (in the early graft angiography group only) and at 12-month angiographic follow-up to evaluate the structural bypass graft changes occurring after coronary artery bypass graft surgery (secondary endpoint).

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

  • Coronary Artery Bypass Graft Surgery
Clinical Trial Details
NCT number NCT01063491
Study type Interventional
Source North Texas Veterans Healthcare System
Contact
Status Active, not recruiting
Phase Phase 3
Start date February 2010
Completion date December 2013
View Details
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