European Heart Journal Advance Access originally published online on December 23, 2007
European Heart Journal 2008 29(4):455-461; doi:10.1093/eurheartj/ehm562
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One-year clinical outcomes with abciximab vs. placebo in patients with non-ST-segment elevation acute coronary syndromes undergoing percutaneous coronary intervention after pre-treatment with clopidogrel: results of the ISAR-REACT 2 randomized trial
1 Deutsches Herzzentrum, Technische Universität, Lazarettstrasse 36, 80636 Munich, Germany
2 Herz-Zentrum, Bad Krozingen, Germany
3 St Antonius Ziekenhuis, Nieuwegein, The Netherlands
4 Klinikum Garmisch-Partenkirchen, Germany
5 1. Medizinische Klinik rechts der Isar, Technische Universität, Munich, Germany
6 Geisinger Clinic, Danville, PA, USA
Received 31 July 2007; revised 26 October 2007; accepted 5 November 2007; online publish-ahead-of-print 23 December 2007.
* Corresponding author. Tel: +49 89 12184577, Fax: +49 89 12184053. Email: kastrati{at}dhm.mhn.de
See page 429 for the editorial comment on this article (doi:10.1093/eurheartj/ehm624)
Aims: The aim of this study is to investigate whether the benefit of abciximab in patients with non-ST-segment elevation acute coronary syndromes (NSTE-ACSs) undergoing percutaneous coronary intervention (PCI) after pre-treatment with 600 mg clopidogrel is sustained at 1 year.
Methods and results: We performed 1-year follow-up of 2022 high-risk patients with NSTE-ACS undergoing urgent PCI, who were randomized to abciximab or placebo after pre-treatment with 600 mg clopidogrel in the Intracoronary Stenting and Antithrombotic Regimen: Rapid Early Action for Coronary Treatment 2 trial. The combined incidence of death, myocardial infarction, or target vessel revascularization at 1 year was the primary outcome analysis. At 1 year, the primary outcome was reached in 23.3% of patients allocated to abciximab vs. 28.0% of patients allocated to placebo [relative risk (RR) 0.80, 95% confidence interval (CI) 0.67–0.95, P = 0.012]. The combined incidence of death or myocardial infarction was 11.6% in patients allocated to abciximab vs. 15.3% in patients allocated to placebo (RR 0.74, 95% CI 0.59–0.94, P = 0.015).
Conclusion: In high-risk patients with NSTE-ACS undergoing a PCI after pre-treatment with 600 mg clopidogrel, adverse events occurred less frequently with abciximab and the early benefit was maintained at 1 year after administration.
Key Words: Abciximab Acute coronary syndrome Clopidogrel Percutaneous coronary intervention
Presented at the Clinical Trial Update Sessions of the Congress of the European Society of Cardiology. 1–5 September 2007, Vienna, Austria. Trial Registration ClinicalTrials.gov Identifier: NCT00133003
[ClinicalTrials.gov]
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