Comparison of Low-Molecular-Weight Heparin With Unfractionated Heparin Acutely and With Placebo for 6 Weeks in the Management of Unstable Coronary Artery Disease Fragmin in Unstable Coronary Artery Disease Study (FRIC)
1997
Background Low-molecular-weight heparin has a number of pharmacological and pharmacokinetic advantages over unfractionated heparin that make it potentially suitable, when used in combination with aspirin, for the treatment of unstable coronary artery disease. Method and Results Patients with unstable angina or non–Q-wave myocardial infarction (1482) were included in the study, which had two phases. In an open, acute phase (days 1 to 6), patients were assigned either twice-daily weight-adjusted subcutaneous injections of dalteparin (120 IU/kg) or dose-adjusted intravenous infusion of unfractionated heparin. In the double-blind, prolonged treatment phase (days 6 to 45), patients received subcutaneously either dalteparin (7500 IU once daily) or placebo. During the first 6 days, the rate of death, myocardial infarction, or recurrence of angina was 7.6% in the unfractionated heparin-treated patients and 9.3% in the dalteparin-treated patients (relative risk, 1.18; 95% confidence interval [CI], 0.84 to 1.66). T...
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