2011
RUBY-1: a randomized, double-blind, placebo-controlled trial of the safety and tolerability of the novel oral factor Xa inhibitor darexaban (YM150) following acute coronary syndrome
STEG, Ph. Gabriel; Shamir R. MEHTA; J. Wouter JUKEMA; Gregory Y. H. LIP; C. Michael GIBSON et al.Základní údaje
Originální název
RUBY-1: a randomized, double-blind, placebo-controlled trial of the safety and tolerability of the novel oral factor Xa inhibitor darexaban (YM150) following acute coronary syndrome
Autoři
STEG, Ph. Gabriel; Shamir R. MEHTA; J. Wouter JUKEMA; Gregory Y. H. LIP; C. Michael GIBSON; František KOVAR; Petr KALA; Alberto GARCIA-HERNANDEZ; Ronny W. RENFURM a Christopher B. GRANGER
Vydání
European Heart Journal, 2011, 0195-668X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30201 Cardiac and Cardiovascular systems
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 10.478
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/11:00054051
Organizační jednotka
Lékařská fakulta
UT WoS
Klíčová slova anglicky
Anticoagulant; Acute coronary syndrome; Secondary prevention; Darexaban
Příznaky
Mezinárodní význam
Změněno: 25. 11. 2011 13:51, Mgr. Michal Petr
Anotace
V originále
To establish the safety, tolerability and most promising regimen of darexaban (YM150), a novel, oral, direct factor Xa inhibitor, for prevention of ischaemic events in acute coronary syndrome (ACS). In a 26-week, multi-centre, double-blind, randomized, parallel-group study, 1279 patients with recent high-risk non-ST-segment or ST-segment elevation ACS received one of six darexaban regimens: 5 mg b.i.d., 10 mg o.d., 15 mg b.i.d., 30 mg o.d., 30 mg b.i.d., or 60 mg o.d. or placebo, on top of dual antiplatelet treatment. Primary outcome was incidence of major or clinically relevant non-major bleeding events. The main efficacy outcome was a composite of death, stroke, myocardial infarction, systemic thromboembolism, and severe recurrent ischaemia. Bleeding rates were numerically higher in all darexaban arms vs. placebo (pooled HR: 2.275; 95 CI: 1.134.60, P 0.022). Using placebo as reference (bleeding rate 3.1), there was a doseresponse relationship (P 0.009) for increased bleeding with increasing darexaban dose (6.2, 6.5, and 9.3 for 10, 30, and 60 mg daily, respectively), which was statistically significant for 30 mg b.i.d. (P 0.002). There was no decrease (indeed a numerical increase in the 30 and 60 mg dose arms) in efficacy event rates with darexaban, but the study was underpowered for efficacy. Darexaban showed good tolerability without signs of liver toxicity. Darexaban when added to dual antiplatelet therapy after ACS produces an expected dose-related two- to four-fold increase in bleeding, with no other safety concerns but no signal of efficacy. Establishing the potential of low-dose darexaban in preventing major cardiac events after ACS requires a large phase III trial.