(Circulation. 2000;101:751.)
© 2000 American Heart Association, Inc.
Clinical Investigation and Reports |
Early Percutaneous Coronary Intervention, Platelet Inhibition With Eptifibatide, and Clinical Outcomes in Patients With Acute Coronary Syndromes
From the Baylor College of Medicine, Houston, Tex (N.S.K.); Cleveland Clinic Foundation, Cleveland, Ohio (A.M.L., E.J.T.); University of Missouri, Columbia, Mo (G.C.F.); Duke Clinical Research Institute, Durham, NC (K.S.P., L.G.B., R.M.C., R.A.H.); Queen’s Medical Centre, Nottingham, UK (R.G.W.); COR Therapeutics, South San Francisco, Calif (T.J.L.); Onassis Cardiac Surgery, Athens, Greece (D.V.C.); and University Hospital, Rotterdam, Netherlands (M.L.S., E.B.).
Background—Platelet glycoprotein (GP) IIb/IIIa antagonists prevent the composite end point of death or myocardial infarction (MI) in patients with acute coronary syndromes. There is uncertainty about whether this effect is confined to patients who have percutaneous coronary interventions (PCIs) and whether PCIs further prevent death or MI in patients already treated with GP IIb/IIIa antagonists.
Methods and Results—PURSUIT patients were treated with the GP IIb/IIIa antagonist eptifibatide or placebo; PCIs were performed according to physician practices. In 2253 of 9641 patients (23.4%), PCI was performed by 30 days. Early (<72 hours) PCI was performed in 1228 (12.7%). In 34 placebo patients (5.5%) and 10 treated with eptifibatide (1.7%) (P=0.001), MI preceded early PCI. In patients censored for PCI across the 30-day period, there was a significant reduction in the primary composite end point in eptifibatide patients (P=0.035). Eptifibatide reduced 30-day events in patients who had early PCI (11.6% versus 16.7%, P=0.01) and in patients who did not (14.6% versus 15.6%, P=0.23). After adjustment for PCI propensity, there was no evidence that eptifibatide treatment effect differed between patients with or without early PCI (P for interaction=0.634). PCI was not associated with a reduction of the primary composite end point but was associated with a reduced (nonspecified) composite of death or Q-wave MI. This association disappeared after adjustment for propensity for early PCI.
Conclusions—Eptifibatide reduced the composite rates of death or MI in PCI patients and those managed conservatively.
Key Words: platelets • coronary disease • eptifibatide
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