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Final 5-Year Results Of The TAXUS II Trial

Sigmund Silber, Antonio Colombo, Adrian P. Banning, Karl Hauptmann, Janusz Drzewiecki, Eberhard Grube, Dariusz Dudek, Donald S. Baim

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Background— The TAXUS II trial was designed to evaluate the safety and efficacy of the commercialized slow-release (SR) and an investigation-only moderate-release (MR) polymer-based TAXUS paclitaxel-eluting stent compared with a bare-metal stent for the treatment of de novo coronary lesions. Methods and Results— This prospective, randomized, double-blind, controlled trial enrolled 536 patients in 2 consecutive cohorts to compare TAXUS SR (n=131) and TAXUS MR (n=135) with an identical but uncoated bare-metal stent control (n=270). The present analysis reports final 5-year clinical outcomes of TAXUS II. At 5 years, both TAXUS SR and MR showed superior outcomes compared with control. The 5-year rates of major adverse cardiac events were 27.6%, 20.4%, and 15.1% ( P =0.01); rates of target-vessel revascularization were 22.5%, 16.6%, and 9.0% ( P =0.004); and rates of target-lesion revascularization were 18.4%, 10.3%, and 4.5% ( P <0.001) for the control, TAXUS SR, and TAXUS MR groups, respectively. The rates of all-cause death and myocardial infarction were low and similar between groups, with 2 stent thromboses with bare-metal stents compared with no event beyond 2 years with either of the TAXUS stents. Conclusions— TAXUS II is the first large TAXUS trial to have reached 5-year follow-up. Both the SR and MR stents lowered the rates of target-vessel and target-lesion revascularization, which indicates their sustained efficacy. Furthermore, the low overall rates of all death, myocardial infarction, and stent thrombosis support the long-term safety of the TAXUS stent system.