The failure of orally administered glycoprotein IIb/IIIa inhibitors to prevent recurrent cardiac events.

Published

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Newby, LK; Califf, RM; White, HD; Harrington, RA; Van de Werf, F; Granger, CB; Simes, RJ; Hasselblad, V; Armstrong, PW

Published Date

  • June 1, 2002

Published In

Volume / Issue

  • 112 / 8

Start / End Page

  • 647 - 658

PubMed ID

  • 12034415

Pubmed Central ID

  • 12034415

International Standard Serial Number (ISSN)

  • 0002-9343

Digital Object Identifier (DOI)

  • 10.1016/s0002-9343(02)01106-3

Language

  • eng

Conference Location

  • United States