J 2012

Vorapaxar in the Secondary Prevention of Atherothrombotic Events

MORROW, D.A.; Eugene BRAUNWALD; M.P. BONACA; S.F. AMERISO; A.J. DALBY et al.

Základní údaje

Originální název

Vorapaxar in the Secondary Prevention of Atherothrombotic Events

Autoři

MORROW, D.A.; Eugene BRAUNWALD; M.P. BONACA; S.F. AMERISO; A.J. DALBY; M.P. FISH; K.A.A. FOX; L.J. LIPKA; Xian LIU; J.C. NICOLAU; Oude OPHUIS; E. PAOLASSO; B.M. SCIRICA; Jindřich ŠPINAR; T. THEROUX; S.D. WIVIOTT; J. STRONY a S.A. MURPHY

Vydání

New England Journal of Medicine, 2012, 0028-4793

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30201 Cardiac and Cardiovascular systems

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 51.658

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/12:00059817

Organizační jednotka

Lékařská fakulta

Klíčová slova anglicky

ACUTE CORONARY SYNDROMES; PROTEASE-ACTIVATED RECEPTORS; ANTITHROMBOTIC AGENTS; DOUBLE-BLIND; CLOPIDOGREL; SAFETY; TRIAL; ASPIRIN; STROKE; TOLERABILITY

Příznaky

Mezinárodní význam
Změněno: 11. 1. 2013 15:35, Mgr. Michal Petr

Anotace

V originále

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.