• Marc P Bonaca, Deepak L Bhatt, Marc Cohen, Philippe Gabriel Steg, Robert F Storey, Eva C Jensen, Giulia Magnani, Sameer Bansilal, M Polly Fish, Kyungah Im, Olof Bengtsson, Oude Ophuis Ton T, Andrzej Budaj, Pierre Theroux, Mikhail Ruda, Christian Hamm, Shinya Goto, Jindrich Spinar, José Carlos Nicolau, Robert G Kiss, Sabina A Murphy, Stephen D Wiviott, Peter Held, Eugene Braunwald, Marc S Sabatine, and PEGASUS-TIMI 54 Steering Committee and Investigators.
• From the Thrombolysis in Myocardial Infarction (TIMI) Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston (M.P.B., D.L.B., G.M., M.P.F., K.I., S.A.M., S.D.W., E.B., M.S.S.); the Cardiovascular Division, Department of Medicine, Newark Beth Israel Medical Center, Rutgers-New Jersey Medical School, Newark (M.C.); French Alliance for Cardiovascular Trials, Département Hospitalo-Universitaire Fibrosis, Inflammation, Remodeling, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, INSERM Unité 1148, and Université Paris-Diderot, Sorbonne Paris Cité - all in Paris (P.G.S.); National Heart and Lung Institute, Royal Brompton Hospital, Imperial College, London (P.G.S.), and Department of Cardiovascular Science, University of Sheffield, Sheffield, United Kingdom (R.F.S.); AstraZeneca, Mölndal, Sweden (E.C.J., O.B., P.H.); Icahn School of Medicine at Mount Sinai, New York (S.B.); Canisius-Wilhelmina Hospital, Nijmegen, the Netherlands (T.O.O.); Postgraduate Medical School, Grochowski Hospital, Warsaw, Poland (A.B.); Montreal Heart Institute, Université de Montréal, Montreal (P.T.); Cardiology Research Center, Moscow (M.R.); Kerckhoff Heart Center, Bad Nauheim, and University of Giessen, Giessen - both in Germany (C.H.); Department of Medicine (Cardiology), Tokai University School of Medicine, Isehara, Japan (S.G.); University Hospital, Jihlavska, Brno, Czech Republic (J.S.); Heart Institute (InCor)-University of São Paulo Medical School, São Paulo (J.C.N.); and the Department of Cardiology, Military Hospital, Budapest, Hungary (R.G.K.).
• N. Engl. J. Med. 2015 May 7; 372 (19): 1791-800.

BackgroundThe potential benefit of dual antiplatelet therapy beyond 1 year after a myocardial infarction has not been established. We investigated the efficacy and safety of ticagrelor, a P2Y12 receptor antagonist with established efficacy after an acute coronary syndrome, in this context.MethodsWe randomly assigned, in a double-blind 1:1:1 fashion, 21,162 patients who had had a myocardial infarction 1 to 3 years earlier to ticagrelor at a dose of 90 mg twice daily, ticagrelor at a dose of 60 mg twice daily, or placebo. All the patients were to receive low-dose aspirin and were followed for a median of 33 months. The primary efficacy end point was the composite of cardiovascular death, myocardial infarction, or stroke. The primary safety end point was Thrombolysis in Myocardial Infarction (TIMI) major bleeding.ResultsThe two ticagrelor doses each reduced, as compared with placebo, the rate of the primary efficacy end point, with Kaplan-Meier rates at 3 years of 7.85% in the group that received 90 mg of ticagrelor twice daily, 7.77% in the group that received 60 mg of ticagrelor twice daily, and 9.04% in the placebo group (hazard ratio for 90 mg of ticagrelor vs. placebo, 0.85; 95% confidence interval [CI], 0.75 to 0.96; P=0.008; hazard ratio for 60 mg of ticagrelor vs. placebo, 0.84; 95% CI, 0.74 to 0.95; P=0.004). Rates of TIMI major bleeding were higher with ticagrelor (2.60% with 90 mg and 2.30% with 60 mg) than with placebo (1.06%) (P<0.001 for each dose vs. placebo); the rates of intracranial hemorrhage or fatal bleeding in the three groups were 0.63%, 0.71%, and 0.60%, respectively.ConclusionsIn patients with a myocardial infarction more than 1 year previously, treatment with ticagrelor significantly reduced the risk of cardiovascular death, myocardial infarction, or stroke and increased the risk of major bleeding. (Funded by AstraZeneca; PEGASUS-TIMI 54 ClinicalTrials.gov number, NCT01225562.).

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