• J. Am. Coll. Cardiol. · Mar 2015

    Randomized Controlled Trial

    Zotarolimus-eluting versus bare-metal stents in uncertain drug-eluting stent candidates.

    • Marco Valgimigli, Athanasios Patialiakas, Attila Thury, Eugene McFadden, Salvatore Colangelo, Gianluca Campo, Matteo Tebaldi, Imre Ungi, Stefano Tondi, Marco Roffi, Alberto Menozzi, Nicoletta de Cesare, Roberto Garbo, Emanuele Meliga, Luca Testa, Henrique Mesquita Gabriel, Flavio Airoldi, Marco Ferlini, Francesco Liistro, Antonio Dellavalle, Pascal Vranckx, Carlo Briguori, and ZEUS Investigators.
    • Thoraxcenter, Erasmus Medical Center, Rotterdam, the Netherlands. Electronic address: m.valgimigli@erasmusmc.nl.
    • J. Am. Coll. Cardiol. 2015 Mar 3;65(8):805-15.

    BackgroundThe use of drug-eluting stents (DES) in patients at high risk of bleeding or thrombosis has not been prospectively studied; limited data are available in patients who have a low restenosis risk.ObjectivesThis study sought to compare a hydrophilic polymer-based, second-generation zotarolimus-eluting stent (ZES) with a unique drug fast-release profile versus bare-metal stents (BMS) under similar durations of dual-antiplatelet therapy (DAPT).MethodsWe randomly assigned 1,606 patients with stable or unstable symptoms, and who on the basis of thrombotic bleeding or restenosis risk criteria, qualified as uncertain candidates for DES, to receive ZES or BMS. DAPT duration was on the basis of patient characteristics, rather than stent characteristics, and allowed for a personalized 1-month dual antiplatelet regimen. The primary endpoint was the risk of 1-year major adverse cardiovascular events (MACE), which included death, myocardial infarction (MI), or target vessel revascularization (TVR).ResultsMedian DAPT duration was 32 days (interquartile range [IQR]: 30 to 180 days) and did not differ between the groups. In the ZES group, 140 patients (17.5%) reached the primary endpoint, compared with 178 patients (22.1%) in the BMS group (hazard ratio: 0.76; 95% confidence interval: 0.61 to 0.95; p = 0.011) as a result of lower MI (2.9% vs. 8.1%; p < 0.001) and TVR rates (5.9% vs.10.7%; p = 0.001) in the ZES group. Definite or probable stent thrombosis was also significantly reduced in ZES recipients (2.0% vs. 4.1%; p = 0.019).ConclusionsCompared with BMS, DES implantation using a stent with a biocompatible polymer and fast drug-eluting characteristics, combined with an abbreviated, tailored DAPT regimen, resulted in a lower risk of 1-year MACE in uncertain candidates for DES implantation. (Zotarolimus-eluting Endeavor Sprint Stent in Uncertain DES Candidates [ZEUS] Study; NCT01385319).Copyright © 2015 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

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