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Abstract
Background: Abciximab is a monoclonal antibody that prevents platelet aggregation by blocking platelet glycoprotein (GP) IIb/IIIa receptor. Objective: To study the safety profile of this agent in contemporary clinical practice. Methods: We evaluated efficacy and safety end points (major and minor bleeding, thrombocytopenia) in patients treated with abciximab and compared them to those treated with placebo in main randomized clinical trials of patients with acute coronary syndromes (ACS) or those undergoing percutaneous coronary intervention (PCI). Results/conclusion: Use of abciximab is associated with an improved outcome in high-risk patients undergoing PCI but with a worse outcome in ACS patients treated conservatively. Use of abciximab is associated with an acceptable safety profile even when used on a background of aspirin and high doses of thienopyridine but has a potential to increase thrombocytopenia and minor bleeding. Small molecule GP IIb/IIIa antagonists are increasingly preferred over abciximab in clinical practice, and recent observational data have demonstrated these agents to have a similar efficacy and safety profile. As an increasing number of agents are being evaluated for peri-PCI anti-thrombotic therapy, the role of abciximab is likely to be further restricted to the highest risk patients.