The effect of intracoronary infusion of bone marrow-derived mononuclear cells on all-cause mortality in acute myocardial infarction: the BAMI trial.
Eur Heart J
; 41(38): 3702-3710, 2020 10 07.
Article
in En
| MEDLINE
| ID: mdl-32860406
ABSTRACT
AIMS:
Bone marrow-derived mononuclear cell (BM-MNC) therapy may improve myocardial recovery in patients following acute myocardial infarction (AMI), though existing trial results are inconsistent. METHODS ANDRESULTS:
Originally an open-label, multicentre Phase III trial, BAMI was designed to demonstrate the safety and efficacy of intracoronary infusion of BM-MNCs in reducing the time to all-cause mortality in patients with reduced left ventricular ejection fraction (LVEF, ≤45%) after primary angioplasty (PPCI) for ST-elevation AMI. Unexpectedly low recruitment means the trial no longer qualifies as a hypothesis-testing trial, but is instead an observational study with no definitive conclusions possible from statistical analysis. In total, 375 patients were recruited 185 patients were randomized to the treatment arm (intracoronary infusion of BM-MNCs 2-8 days after PPCI) and 190 patients to the control arm (optimal medical therapy). All-cause mortality at 2 years was 3.26% [6 deaths; 95% confidence interval (CI) 1.48-7.12%] in the BM-MNC group and 3.82% (7 deaths; 95% CI 1.84-7.84%) in the control group. Five patients (2.7%, 95% CI 1.0-5.9%) in the BM-MNC group and 15 patients (8.1%, CI 4.7-12.5%) in the control group were hospitalized for heart failure during 2 years of follow-up. Neither adverse events nor serious adverse events differed between the two groups. There were no patients hospitalized for stroke in the control group and 4 (2.2%) patients hospitalized for stroke in the BM-MNC group.CONCLUSIONS:
Although BAMI is the largest trial of autologous cell-based therapy in the treatment of AMI, unexpectedly low recruitment and event rates preclude any meaningful group comparisons and interpretation of the observed results.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ventricular Function, Left
/
Myocardial Infarction
Type of study:
Clinical_trials
/
Observational_studies
Limits:
Humans
Language:
En
Journal:
Eur Heart J
Year:
2020
Document type:
Article
Affiliation country:
United kingdom