At a glance
ClinicalIndex Comparison Record- ✓Recent myocardial infarction occurring 3-28 days prior to enrollment (Day 1 is calendar day of MI symptom onset)
- ✓MI confirmed by at least 2 of 3 criteria: ischemic symptoms ≥30 minutes, elevated cardiac serum markers (CK ≥2x ULN with elevated CK-MB, or troponin T/I ≥2x ULN), or EKG changes (new Q-waves ≥0.03 sec in ≥2 related leads, ST-T changes, LBBB, R-wave loss ≥50%, or T-wave inversions ≥3 mm)
- ✓TIMI flow 0 or 1 (complete or near-complete occlusion) in the infarct-related artery
- ✓Meets high-risk criteria: ejection fraction <50% OR proximal LAD occlusion (proximal to second major diagonal), large RCA occlusion, or large circumflex with obtuse marginal/inferior wall involvement
- ✕Age <18 years
- ✕Clinical indication for revascularization: rest or low-threshold angina post-MI; severe inducible ischemia (ST depression ≥2 mm, inability to complete stage 1 exercise, or multiple-territory perfusion defects); left main ≥50% stenosis; or triple-vessel disease
- ✕Serious comorbidity (cancer, pulmonary disease) limiting 3-year survival
- ✕Severe renal disease: serum creatinine >3.0 mg/dL (increased contrast risk)
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Occluded Artery Trial (OAT) - Randomized Comparative Effectiveness Trial of PCI and Medical Therapy Only Post MI
In Brief
A Phase 3 clinical trial evaluating Beta adrenergic blockers, Platelet inhibitors, and 2 other interventions for Cardiovascular Diseases and 4 related conditions. Completed, enrolled 2,201 participants across 1 site.
Detailed Summary
The purpose of this study is to determine whether opening an occluded infarcted artery 3-28 days after an acute myocardial infarction in high-risk asymptomatic patients reduces the composite endpoint of mortality, recurrent myocardial infarction, and hospitalization for class IV congestive heart failure over an average 2.9-year follow-up with extended follow up for an average of six years. Long term follow-up of patients were completed in March 2010. Final collection of all regulatory documentation was completed June 2011.
Study Details
Timeline
Interventions
Participants will receive beta adrenergic blockers.
Participants will receive platelet inhibitors.
Participants will undergo percutaneous coronary intervention (PTCA) and coronary stenting.
Participants will receive ACE inhibitors.