Abciximab in primary coronary stenting of ST-elevation myocardial infarction: a European meta-analysis on individual patients' data with long-term follow-up

• Published in: European heart journal Vol. 28; no. 4; pp. 443 - 449
• Main Authors: Montalescot, Gilles, Antoniucci, David, Kastrati, Adnan, Neumann, Franz Joseph, Borentain, Maria, Migliorini, Angela, Boutron, Carole, Collet, Jean-Philippe, Vicaut, Eric
• Format: Journal Article
• Language: English
• Published: Oxford Oxford University Press 01.02.2007; Oxford Publishing Limited (England)
• Subjects: Antibodies, Monoclonal - therapeutic use; Anticoagulants - therapeutic use; Biological and medical sciences; Cardiology. Vascular system; Coronary heart disease; Diseases of the cardiovascular system; Female; Follow-Up Studies; Heart; Humans; Immunoglobulin Fab Fragments - therapeutic use; Male; Medical sciences; Middle Aged; Myocardial Infarction - drug therapy; Myocardial Infarction - mortality; Myocarditis. Cardiomyopathies; Platelet Aggregation Inhibitors - therapeutic use; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects); Randomized Controlled Trials as Topic; Recurrence; Stents; Survival Analysis; Europe; Myocardial infarction; Primary percutaneous coronary intervention; GP IIb/IIIa inhibitors; Abciximab; Stent; Medical data; Angioplasty; Cardiovascular disease; Myocardial disease; Phlebology; Metaanalysis; ST elevation; Primary; Cardiology; GP Ib/IIIa inhibitors; Public health; Endoprosthesis; Coronary artery; Instrumentation therapy; European; Coronary heart disease; Long term; Myocardiat infarction; Follow up study; Inhibitor; Circulatory system
• ISSN: 0195-668X; 1522-9645
• DOI: 10.1093/eurheartj/ehl472

Aims Varying results have been reported in studies evaluating glycoprotein (GP) IIb/IIIa inhibition in primary coronary stenting of acute ST-elevation myocardial infarction (STEMI), usually with limited clinical follow-up. We performed a meta-analysis on case specific data of primary stenting in STEMI with a long-term evaluation. Methods and results For this meta-analysis, studies of rescue percutaneous coronary intervention (PCI) after failed lytic therapy, plain balloon angioplasty studies and studies with an angiographic selection of patients were excluded. The ISAR-2, ADMIRAL, and ACE studies fulfilled inclusion criteria and all individual data were analysed together. The primary endpoint was the composite of death or re-infarction up to 3 years of follow-up. A total of 1101 patients, presenting for primary PCI and stenting of STEMI were randomized to abciximab (n = 550) or placebo (n = 551). This population had high-risk characteristics with 41% of anterior MI, 30% with a prior history of MI, 8.4% of cardiogenic shock, and 3.1% of previous coronary artery bypass graft (CABG). The primary endpoint of death or re-infarction was significantly reduced from an estimated cumulative hazard rate of 19.0% with placebo to 12.9% with abciximab [RR(95% IC): 0.633 (0.452; 0.887), P = 0.008]. The mortality rate was reduced from an estimated cumulative hazard rate of 14.3% in the placebo arm to 10.9% in the abciximab arm [0.695 (0.482; 1.003), P = 0.052]. Re-infarction was reduced from an estimated cumulative hazard rate of 5.5% with placebo to 2.3% with abciximab [0.41 (0.203; 0.831), P = 0.013]. Major bleedings were 2.5 and 2% with and without abciximab, respectively (NS). In the control arm, both the death or MI cumulative hazard rate (54 vs. 13.5%) and mortality rate (39.7 vs. 10.1%) were four-fold higher in diabetics when compared with non-diabetics. Abciximab provided a significant benefit on the primary endpoint for diabetics [0.525 (0.303; 0.911), P = 0.022]. Conclusion Abciximab has a strong and persistent impact on hard clinical endpoints in patients undergoing primary stenting for STEMI.