PMID- 12228784 OWN - NLM STAT- MEDLINE DCOM- 20020927 LR - 20220318 IS - 1097-6744 (Electronic) IS - 0002-8703 (Linking) VI - 144 IP - 3 DP - 2002 Sep TI - Randomized double-blind safety study of enoxaparin versus unfractionated heparin in patients with non-ST-segment elevation acute coronary syndromes treated with tirofiban and aspirin: the ACUTE II study. The Antithrombotic Combination Using Tirofiban and Enoxaparin. PG - 470-7 AB - BACKGROUND: In comparison with treatment with unfractionated heparin (UFH) and aspirin (ASA), both tirofiban administered with UFH and ASA, and enoxaparin plus ASA have shown superiority in reducing cardiac ischemic events in patients with unstable angina and non-ST-segment elevation myocardial infarction. Replacing UFH with enoxaparin when tirofiban is administered to patients may offer further therapeutic benefit, but could also increase bleeding. OBJECTIVE: Our objective was to provide estimates of the frequency of bleeding complications, as defined by means of the Thrombolysis In Myocardial Infarction(TIMI) group, and collect data on clinical efficacy of the combination of tirofiban with enoxaparin plus ASA. METHODS: Five hundred twenty-five patients with UA/NSTEMI were treated with tirofiban coadministered with ASA and randomized to receive either UFH (n = 210) or enoxaparin (n = 315). Therapy was administered for 24 to 96 hours. Bleeding incidences were assessed until 24 hours after trial therapy was discontinued; other clinical outcomes were assessed for as long as 30 days. RESULTS: The total bleeding rate (TIMI major + minor + loss-no-site) for the UFH group versus the enoxaparin group was 4.8% vs 3.5% (odds ratio [OR] 1.4, CI 0.6-3.4). The TIMI major and minor bleeding rates for the UFH versus the enoxaparin groups were 1.0% versus 0.3% (OR 3.0, CI 0.3-33.8) and 4.3% versus 2.5% (OR 1.7, CI 0.7-4.6). There was an increase in nuisance cutaneous and oral bleeds (<50 mL of blood loss) in the enoxaparin group. Death or myocardial infarction occurred with similar frequency in the 2 groups (9.0% vs 9.2%). However, refractory ischemia requiring urgent revascularization and rehospitalization because of unstable angina occurred more frequently in the UFH group (4.3% vs 0.6% and 7.1% vs 1.6%, respectively). CONCLUSIONS: Combination therapy with tirofiban plus enoxaparin appears safe, relative to therapy with tirofiban plus UFH. FAU - Cohen, Marc AU - Cohen M AD - MCP Hahnemann University School of Medicine, Philadelphia, Pa, USA. marc.cohen@tenethealth.com FAU - Theroux, Pierre AU - Theroux P FAU - Borzak, Steven AU - Borzak S FAU - Frey, Martin J AU - Frey MJ FAU - White, Harvey D AU - White HD FAU - Van Mieghem, W AU - Van Mieghem W FAU - Senatore, Fred AU - Senatore F FAU - Lis, Joy AU - Lis J FAU - Mukherjee, Robin AU - Mukherjee R FAU - Harris, Kathy AU - Harris K FAU - Bigonzi, Frederique AU - Bigonzi F CN - ACUTE II Investigators LA - eng PT - Clinical Trial PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Am Heart J JT - American heart journal JID - 0370465 RN - 0 (Enoxaparin) RN - 0 (Fibrinolytic Agents) RN - 0 (Platelet Glycoprotein GPIIb-IIIa Complex) RN - 42HK56048U (Tyrosine) RN - 9005-49-6 (Heparin) RN - GGX234SI5H (Tirofiban) RN - R16CO5Y76E (Aspirin) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Aspirin/adverse effects/*therapeutic use MH - Coronary Disease/diagnosis/*drug therapy MH - Double-Blind Method MH - Drug Therapy, Combination MH - Electrocardiography/*statistics & numerical data MH - Enoxaparin/*therapeutic use MH - Female MH - Fibrinolytic Agents/administration & dosage/adverse effects/*therapeutic use MH - Hemorrhage/*chemically induced MH - Heparin/adverse effects/*therapeutic use MH - Humans MH - Infusions, Intravenous MH - Male MH - Middle Aged MH - Platelet Glycoprotein GPIIb-IIIa Complex/adverse effects/*therapeutic use MH - Tirofiban MH - Treatment Outcome MH - Tyrosine/adverse effects/*analogs & derivatives/*therapeutic use EDAT- 2002/09/14 10:00 MHDA- 2002/09/28 04:00 CRDT- 2002/09/14 10:00 PHST- 2002/09/14 10:00 [pubmed] PHST- 2002/09/28 04:00 [medline] PHST- 2002/09/14 10:00 [entrez] AID - S0002870302001114 [pii] AID - 10.1067/mhj.2002.126115 [doi] PST - ppublish SO - Am Heart J. 2002 Sep;144(3):470-7. doi: 10.1067/mhj.2002.126115.