TY - JOUR
T1 - Vorapaxar in the secondary prevention of atherothrombotic events
AU - TRA 2P–TIMI 50 Steering Committee and Investigators
AU - Morrow, David A.
AU - Braunwald, Eugene
AU - Bonaca, Marc P.
AU - Ameriso, Sebastian F.
AU - Dalby, Anthony J.
AU - Fish, Mary Polly
AU - Fox, Keith A.A.
AU - Lipka, Leslie J.
AU - Liu, Xuan
AU - Nicolau, José Carlos
AU - Ophuis, A. J.Oude
AU - Paolasso, Ernesto
AU - Scirica, Benjamin M.
AU - Spinar, Jindrich
AU - Theroux, Pierre
AU - Wiviott, Stephen D.
AU - Strony, John
AU - Murphy, Sabina A.
AU - McCabe, C. H.
AU - Morin, S.
AU - Lamp, J.
AU - Gershman, E.
AU - Deenadayalu, N.
AU - Skene, A.
AU - Hill, K.
AU - Bennett, L.
AU - Plat, F.
AU - Berman, G.
AU - Kilian, A.
AU - He, W.
AU - Aylward, P.
AU - Bassand, J. P.
AU - Betriu, A.
AU - Bounameaux, H.
AU - Corbalan, R.
AU - Creager, M.
AU - De Ferrari, G.
AU - Dellborg, M.
AU - Diehm, C. H.
AU - Dietz, R.
AU - Bornstein, N.
AU - Gavish, D.
AU - Mosseri, M.
AU - Rozenman, Y.
AU - Tanne, D.
AU - Eldar, M.
AU - Zimlichman, R.
AU - Lampl, Y.
AU - Gottlieb, S.
AU - Elis, A.
PY - 2012/4/12
Y1 - 2012/4/12
N2 - BACKGROUND: Thrombin potently activates platelets through the protease-activated receptor PAR-1. Vorapaxar is a novel antiplatelet agent that selectively inhibits the cellular actions of thrombin through antagonism of PAR-1. METHODS: We randomly assigned 26,449 patients who had a history of myocardial infarction, ischemic stroke, or peripheral arterial disease to receive vorapaxar (2.5 mg daily) or matching placebo and followed them for a median of 30 months. The primary efficacy end point was the composite of death from cardiovascular causes, myocardial infarction, or stroke. After 2 years, the data and safety monitoring board recommended discontinuation of the study treatment in patients with a history of stroke owing to the risk of intracranial hemorrhage. RESULTS:At 3 years, the primary end point had occurred in 1028 patients (9.3%) in the vorapaxar group and in 1176 patients (10.5%) in the placebo group (hazard ratio for the vorapaxar group, 0.87; 95% confidence interval [CI], 0.80 to 0.94; P<0.001). Cardiovascular death, myocardial infarction, stroke, or recurrent ischemia leading to revascularization occurred in 1259 patients (11.2%) in the vorapaxar group and 1417 patients (12.4%) in the placebo group (hazard ratio, 0.88; 95% CI, 0.82 to 0.95; P = 0.001). Moderate or severe bleeding occurred in 4.2% of patients who received vorapaxar and 2.5% of those who received placebo (hazard ratio, 1.66; 95% CI, 1.43 to 1.93; P<0.001). There was an increase in the rate of intracranial hemorrhage in the vorapaxar group (1.0%, vs. 0.5% in the placebo group; P<0.001). CONCLUSIONS:Inhibition of PAR-1 with vorapaxar reduced the risk of cardiovascular death or ischemic events in patients with stable atherosclerosis who were receiving standard therapy. However, it increased the risk of moderate or severe bleeding, including intracranial hemorrhage. (Funded by Merck; TRA 2P-TIMI 50 ClinicalTrials.gov number, NCT00526474.)
AB - BACKGROUND: Thrombin potently activates platelets through the protease-activated receptor PAR-1. Vorapaxar is a novel antiplatelet agent that selectively inhibits the cellular actions of thrombin through antagonism of PAR-1. METHODS: We randomly assigned 26,449 patients who had a history of myocardial infarction, ischemic stroke, or peripheral arterial disease to receive vorapaxar (2.5 mg daily) or matching placebo and followed them for a median of 30 months. The primary efficacy end point was the composite of death from cardiovascular causes, myocardial infarction, or stroke. After 2 years, the data and safety monitoring board recommended discontinuation of the study treatment in patients with a history of stroke owing to the risk of intracranial hemorrhage. RESULTS:At 3 years, the primary end point had occurred in 1028 patients (9.3%) in the vorapaxar group and in 1176 patients (10.5%) in the placebo group (hazard ratio for the vorapaxar group, 0.87; 95% confidence interval [CI], 0.80 to 0.94; P<0.001). Cardiovascular death, myocardial infarction, stroke, or recurrent ischemia leading to revascularization occurred in 1259 patients (11.2%) in the vorapaxar group and 1417 patients (12.4%) in the placebo group (hazard ratio, 0.88; 95% CI, 0.82 to 0.95; P = 0.001). Moderate or severe bleeding occurred in 4.2% of patients who received vorapaxar and 2.5% of those who received placebo (hazard ratio, 1.66; 95% CI, 1.43 to 1.93; P<0.001). There was an increase in the rate of intracranial hemorrhage in the vorapaxar group (1.0%, vs. 0.5% in the placebo group; P<0.001). CONCLUSIONS:Inhibition of PAR-1 with vorapaxar reduced the risk of cardiovascular death or ischemic events in patients with stable atherosclerosis who were receiving standard therapy. However, it increased the risk of moderate or severe bleeding, including intracranial hemorrhage. (Funded by Merck; TRA 2P-TIMI 50 ClinicalTrials.gov number, NCT00526474.)
UR - http://www.scopus.com/inward/record.url?scp=84859555815&partnerID=8YFLogxK
U2 - 10.1056/NEJMoa1200933
DO - 10.1056/NEJMoa1200933
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C2 - 22443427
AN - SCOPUS:84859555815
SN - 0028-4793
VL - 366
SP - 1404
EP - 1413
JO - New England Journal of Medicine
JF - New England Journal of Medicine
IS - 15
ER -