title: Contemporary antiplatelet treatment in acute coronary syndrome patients undergoing percutaneous coronary intervention: 1-year outcomes from the GReek AntiPlatElet (GRAPE) Registry.
abstract: Essentials The comparative efficacy and safety of antiplatelet agents in 'real life' is not clear. We recruited acute coronary syndrome patients receiving percutaneous coronary intervention. At 1-year follow-up, prasugrel offers better anti-ischemic protection than clopidogrel. Prasugrel and ticagrelor are accompanied by more frequent bleeding events.
  
  
  
  Background The comparative efficacy and safety of antiplatelet treatment outside randomized trials is not clear. Objectives To investigate long-term efficacy and safety in 'real-life' acute coronary syndrome (ACS) patients treated by percutaneous coronary intervention (PCI) with contemporary use of clopidogrel, prasugrel and ticagrelor. Methods In a prospective, observational, multicenter cohort study, 2047 patients were recruited into the GReek AntiPlatElet (GRAPE) Registry and were followed-up for 1 year for major adverse cardiovascular events (MACE, a composite of death, non-fatal myocardial infarction, urgent revascularization and stroke) and bleeding events (Bleeding Academic Research Consortium [BARC] classification). Results Exposure to clopidogrel, prasugrel and ticagrelor by PCI occurred in 959, 363 and 717 patients, respectively. After adjustment, the rate of MACE (primary outcome endpoint) was lower in prasugrel-treated patients (4.4%) than in clopidogrel-treated patients (10.1%) (hazard ratio [HR], 0.53; 95% confidence interval [CI], 0.30-0.91), although not significantly different between ticagrelor (6.8%) and clopidogrel groups (HR, 0.78; 95% CI, 0.54-1.12). Any type of BARC-classified bleeding (secondary outcome endpoint) was more frequent in prasugrel-treated patients (51.2%) than in clopidogrel-treated patients (37.6%) (HR, 1.61; 95% CI, 1.33-1.95) and more frequent in ticagrelor-treated patients (56.9%) than in clopidogrel-treated patients (HR, 1.81; 95% CI, 1.55-2.10). An adjusted comparison between prasugrel and ticagrelor-treated groups did not reveal differences in any outcome measure. After adjustment, the death rate was more reduced by novel agents in comparison with clopidogrel (2.9% vs. 6.2%). Conclusions In ACS/PCI patients, prasugrel offered better anti-ischemic protection than clopidogrel, whereas use of both novel agents is accompanied by more frequent bleeding events.
authors.affiliation: Department of Cardiology, Patras University Hospital, Patras, Greece.
authors.forename: D
authors.initials: D
authors.lastname: Alexopoulos
authors.affiliation: Department of Cardiology, Patras University Hospital, Patras, Greece.
authors.forename: I
authors.initials: I
authors.lastname: Xanthopoulou
authors.affiliation: Department of Cardiology, Athens General Hospital 'G. Gennimatas', Athens, Greece.
authors.forename: S
authors.initials: S
authors.lastname: Deftereos
authors.affiliation: Department of Cardiology, Iraklion University Hospital, Iraklion, Greece.
authors.forename: M
authors.initials: M
authors.lastname: Hamilos
authors.affiliation: Department of Cardiology, Larissa University Hospital, Larissa, Greece.
authors.forename: G
authors.initials: G
authors.lastname: Sitafidis
authors.affiliation: Department of Clinical Therapeutics, 'Alexandra' University Hospital, Athens, Greece.
authors.forename: I
authors.initials: I
authors.lastname: Kanakakis
authors.affiliation: Department of Cardiology, Patras University Hospital, Patras, Greece.
authors.forename: I
authors.initials: I
authors.lastname: Pentara
authors.affiliation: 1st University Department of Cardiology, Ippokration Hospital, Ioannina, Greece.
authors.forename: M
authors.initials: M
authors.lastname: Vavouranakis
authors.affiliation: Department of Cardiology, Patras University Hospital, Patras, Greece.
authors.forename: P
authors.initials: P
authors.lastname: Davlouros
authors.affiliation: Department of Cardiology, Patras University Hospital, Patras, Greece.
authors.forename: G
authors.initials: G
authors.lastname: Hahalis
authors.affiliation: Department of Cardiology, Ioannina University Hospital, Ioannina, Greece.
authors.forename: J
authors.initials: J
authors.lastname: Goudevenos
mesh_terms: D054058:Acute Coronary Syndrome / Q000188:drug therapy*; D000241:Adenosine / Q000031:analogs & derivatives / Q000627:therapeutic use; D000368:Aged; D000077144:Clopidogrel; D005260:Female; D005500:Follow-Up Studies; D006115:Greece; D006801:Humans; D008297:Male; D008875:Middle Aged; D061214:Patient Safety; D062645:Percutaneous Coronary Intervention; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use*; D000068799:Prasugrel Hydrochloride / Q000627:therapeutic use; D016016:Proportional Hazards Models; D011446:Prospective Studies; D058921:Purinergic P2Y Receptor Antagonists / Q000627:therapeutic use; D012042:Registries; D000077486:Ticagrelor; D013988:Ticlopidine / Q000031:analogs & derivatives / Q000627:therapeutic use; D016896:Treatment Outcome
chemical_list: D010975:Platelet Aggregation Inhibitors; D058921:Purinergic P2Y Receptor Antagonists; D000077144:Clopidogrel; D000068799:Prasugrel Hydrochloride; D000077486:Ticagrelor; D000241:Adenosine; D013988:Ticlopidine
keywords: acute coronary syndrome; clopidogrel; platelet aggregation inhibitors; prasugrel; ticagrelor