PMID- 19634922 OWN - NLM STAT- MEDLINE DCOM- 20091030 LR - 20211020 IS - 1179-1950 (Electronic) IS - 0012-6667 (Linking) VI - 69 IP - 11 DP - 2009 Jul 30 TI - Streptokinase and enoxaparin as an alternative to fibrin-specific lytic-based regimens: an ExTRACT-TIMI 25 analysis. PG - 1433-43 LID - 10.2165/00003495-200969110-00003 [doi] AB - BACKGROUND: Enoxaparin was superior to unfractionated heparin (UFH), regardless of fibrinolytic agent in ST-elevation myocardial infarction (STEMI) patients receiving fibrinolytic therapy in ExTRACT-TIMI 25 (Enoxaparin and Thrombolysis Reperfusion for Acute Myocardial Infarction Treatment - Thrombolysis in Myocardial Infarction 25) trial. OBJECTIVE: This post hoc analysis compared outcomes with streptokinase plus enoxaparin to the standard regimen of fibrin-specific lytic (FSL) plus UFH and to the newer combination of FSL plus enoxaparin. METHODS: In ExTRACT-TIMI 25, STEMI patients received either streptokinase or a FSL (alteplase, reteplase or tenecteplase) at the physician's discretion and were randomized to enoxaparin or UFH, stratified by fibrinolytic type. Thirty-day outcomes were adjusted for baseline characteristics, region, in-hospital percutaneous coronary intervention (PCI) and a propensity score for the choice of lytic. RESULTS: The primary trial endpoint of 30-day death/myocardial infarction (MI) occurred in fewer patients in the streptokinase-enoxaparin cohort (n = 2083) compared with FSL-UFH (n = 8141) [10.2% vs 12.0%, adjusted odds ratio [OR(adj)] 0.76; 95% CI 0.62, 0.93; p = 0.008]. Major bleeding was significantly increased with streptokinase-enoxaparin compared with FSL-UFH (OR(adj) 2.74; 95% CI 1.81; 4.14; p < 0.001) but intracranial haemorrhage (ICH) was similar (OR(adj) 0.90; 95% CI 0.40, 2.01; p = 0.79). Net clinical outcomes, defined as either death/MI/major bleeding or as death/MI/ICH tended to favour streptokinase-enoxaparin compared with FSL-UFH (OR(adj) 0.88; 95% CI 0.73, 1.06; p = 0.17; and OR(adj) 0.77; 95% CI 0.63, 0.93; p = 0.008, respectively). Patients receiving FSL-enoxaparin (n = 8142) and streptokinase-enoxaparin therapies experienced similar adjusted rates of the primary endpoint (OR(adj) 1.08; 95% CI 0.87, 1.32; p = 0.49) and net clinical outcomes. CONCLUSIONS: Our results suggest that fibrinolytic therapy with the combination of streptokinase and the potent anticoagulant agent enoxaparin resulted in similar adjusted outcomes compared with more costly regimens utilizing a FSL. FAU - Giraldez, Roberto R AU - Giraldez RR AD - TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA. FAU - Wiviott, Stephen D AU - Wiviott SD FAU - Nicolau, Jose C AU - Nicolau JC FAU - Mohanavelu, Satishkumar AU - Mohanavelu S FAU - Morrow, David A AU - Morrow DA FAU - Antman, Elliott M AU - Antman EM FAU - Giugliano, Robert P AU - Giugliano RP LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - New Zealand TA - Drugs JT - Drugs JID - 7600076 RN - 0 (Enoxaparin) RN - 0 (Fibrinolytic Agents) RN - 0 (Recombinant Proteins) RN - 9001-31-4 (Fibrin) RN - DQA630RIE9 (reteplase) RN - EC 3.4.- (Streptokinase) RN - EC 3.4.21.- (Plasminogen Activators) RN - EC 3.4.21.68 (Tissue Plasminogen Activator) RN - WGD229O42W (Tenecteplase) SB - IM MH - Adult MH - Aged MH - Angioplasty, Balloon, Coronary MH - Cohort Studies MH - Drug Therapy, Combination MH - Endpoint Determination MH - Enoxaparin/*therapeutic use MH - Female MH - Fibrin/*drug effects MH - Fibrinolytic Agents/adverse effects/economics/*therapeutic use MH - Hemorrhage/chemically induced/epidemiology MH - Humans MH - Male MH - Middle Aged MH - Myocardial Infarction/mortality/prevention & control MH - Plasminogen Activators/economics/therapeutic use MH - Recombinant Proteins/therapeutic use MH - Streptokinase/adverse effects/economics/*therapeutic use MH - Tenecteplase MH - *Thrombolytic Therapy MH - Time Factors MH - Tissue Plasminogen Activator/economics/therapeutic use MH - Treatment Outcome MH - Young Adult EDAT- 2009/07/29 09:00 MHDA- 2009/10/31 06:00 CRDT- 2009/07/29 09:00 PHST- 2009/07/29 09:00 [entrez] PHST- 2009/07/29 09:00 [pubmed] PHST- 2009/10/31 06:00 [medline] AID - 3 [pii] AID - 10.2165/00003495-200969110-00003 [doi] PST - ppublish SO - Drugs. 2009 Jul 30;69(11):1433-43. doi: 10.2165/00003495-200969110-00003.