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Title: The failure of orally administered glycoprotein IIb/IIIa inhibitors to prevent recurrent cardiac events
Authors: Newby, L Kristin ×
Califf, Robert M
White, Harvey D
Harrington, Robert A
Van de Werf, Frans
Granger, Christopher B
Simes, R John
Hasselblad, Vic
Armstrong, Paul W #
Issue Date: Jun-2002
Series Title: The American Journal of Medicine vol:112 issue:8 pages:647-58
Abstract: PURPOSE: Despite the success of intravenous glycoprotein IIb/IIIa antagonists, oral formulations have failed to show benefit and have been associated with increased mortality. To understand these findings, we performed a meta-analysis of results from four phase 3 trials. SUBJECTS AND METHODS: Trials were identified by MEDLINE search; review of abstracts from American College of Cardiology, European Society of Cardiology, and American Heart Association scientific sessions; or querying investigators in the field. Published, phase 3, randomized, placebo-controlled trials involving more than 1000 patients with coronary artery disease that compared an oral glycoprotein IIb/IIIa antagonist with or without background aspirin versus aspirin, and that had a planned follow-up of > or =30 days, were included. Four trials met these criteria. Odds ratios (ORs) and 95% confidence intervals (CIs) were generated from results, and combined using an empirical Bayes random-effects model. RESULTS: Among 33,326 patients, oral glycoprotein IIb/IIIa agents were associated with 31% increased mortality (OR = 1.31; 95% CI: 1.12 to 1.53; P= 0.0001). Results were similar whether the agent was added to (OR = 1.38; 95% CI: 1.15 to 1.67) or substituted for (OR = 1.37; 95% CI: 1.00 to 1.86) aspirin. Ischemic events or sudden death (OR = 1.22; 95% CI: 0.91 to 1.63) were also more common. Among patients with acute coronary syndromes, the incidence of myocardial infarction was increased (OR = 1.16; 95% CI: 1.03 to 1.29). CONCLUSION: Oral glycoprotein IIb/IIIa inhibitor therapy is associated with increased mortality and myocardial infarction. No single explanation for these findings is satisfactory; the problem is likely to be multifactorial.
URI: 
ISSN: 0002-9343
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Cardiology
× corresponding author
# (joint) last author

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