SYNERGY: Open Study of Enoxaparin Versus Unfractionated Heparin in Patients With Acute Coronary Syndromes

Summary

Patients experiencing a mild heart attack will receive one of two medications which thin the blood to discern which is superior.

Timeline

Start

2001-08

Primary completion

2005-02

Completion

—

Outcome

Mixed primary results

paper Enoxaparin was not superior to unfractionated heparin but was noninferior for the treatment of high-risk patients with non-ST-segment elevation ACS. PMID 15238590 ↗

paper More bleeding was observed with enoxaparin, with a statistically significant increase in TIMI (Thrombolysis in Myocardial Infarction) major bleeding (9.1% vs 7.6%, P =.008) PMID 15238590 ↗

Publications

• Results Mahaffey KW, Cohen M, Garg J, Antman E, Kleiman NS, Goodman SG, Berdan LG, Reist CJ, Langer A, White HD, Aylward PE, Col JJ, Ferguson JJ 3rd, Califf RM; SYNERGY Trial Investigators. High-risk patients with acute coronary syndromes treated with low-molecular-weight or unfractionated heparin: outcomes at 6 months and 1 year in the SYNERGY trial. JAMA. 2005 Nov 23;294(20):2594-600. doi: 10.1001/jama.294.20.2594.
• Results Chew DP, Mahaffey KW, White HD, Huang Z, Hoekstra JW, Ferguson JJ, Califf RM, Aylward PE. Coronary artery bypass surgery in patients with acute coronary syndromes is difficult to predict. Am Heart J. 2008 May;155(5):841-7. doi: 10.1016/j.ahj.2007.12.002. Epub 2008 Feb 21.
• Results Mahaffey KW, Yang Q, Pieper KS, Antman EM, White HD, Goodman SG, Cohen M, Kleiman NS, Langer A, Aylward PE, Col JJ, Reist C, Ferguson JJ, Califf RM; SYNERGY Trial Investigators. Prediction of one-year survival in high-risk patients with acute coronary syndromes: results from the SYNERGY trial. J Gen Intern Med. 2008 Mar;23(3):310-6. doi: 10.1007/s11606-007-0498-4. Epub 2008 Jan 15.
• Results Ferguson JJ, Califf RM, Antman EM, Cohen M, Grines CL, Goodman S, Kereiakes DJ, Langer A, Mahaffey KW, Nessel CC, Armstrong PW, Avezum A, Aylward P, Becker RC, Biasucci L, Borzak S, Col J, Frey MJ, Fry E, Gulba DC, Guneri S, Gurfinkel E, Harrington R, Hochman JS, Kleiman NS, Leon MB, Lopez-Sendon JL, Pepine CJ, Ruzyllo W, Steinhubl SR, Teirstein PS, Toro-Figueroa L, White H; SYNERGY Trial Investigators. Enoxaparin vs unfractionated heparin in high-risk patients with non-ST-segment elevation acute coronary syndromes managed with an intended early invasive strategy: primary results of the SYNERGY randomized trial. JAMA. 2004 Jul 7;292(1):45-54. doi: 10.1001/jama.292.1.45.
• Results Cohen M, Mahaffey KW, Pieper K, Pollack CV Jr, Antman EM, Hoekstra J, Goodman SG, Langer A, Col JJ, White HD, Califf RM, Ferguson JJ; SYNERGY Trial Investigators. A subgroup analysis of the impact of prerandomization antithrombin therapy on outcomes in the SYNERGY trial: enoxaparin versus unfractionated heparin in non-ST-segment elevation acute coronary syndromes. J Am Coll Cardiol. 2006 Oct 3;48(7):1346-54. doi: 10.1016/j.jacc.2006.05.058. Epub 2006 Sep 12.
• Mahaffey KW, Pieper KS, Lokhnygina Y, Califf RM, Antman EM, Kleiman NS, Goodman SG, White HD, Rao SV, Hochman JS, Cohen M, Col JJ, Roe MT, Ferguson JJ; SYNERGY Investigators. The impact of postrandomization crossover of therapy in acute coronary syndromes care. Circ Cardiovasc Qual Outcomes. 2011 Mar;4(2):211-9. doi: 10.1161/CIRCOUTCOMES.109.853598. Epub 2011 Feb 8.
• Chan MY, Mahaffey KW, Sun LJ, Pieper KS, White HD, Aylward PE, Ferguson JJ, Califf RM, Roe MT. Prevalence, predictors, and impact of conservative medical management for patients with non-ST-segment elevation acute coronary syndromes who have angiographically documented significant coronary disease. JACC Cardiovasc Interv. 2008 Aug;1(4):369-78. doi: 10.1016/j.jcin.2008.03.019.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Enoxaparin sodium	Other / unclassified	—	Subcutaneous

Indications