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Marcus Wiemer,1 Gian Battista Danzi,2 Nick West,3 Vassilios Voudris,4 René Koning,5 Stefan Hoffmann,6 Mario Lombardi,7 Josepa Mauri,8 Rade Babic,9 Fraser Witherow10On behalf of the NOBORI 2 Investigators 1Department of Cardiology, Heart and Diabetes Center North Rhine–Westphalia, Ruhr University Bochum, Bad Oeynhausen, Germany; 2Ospedale Maggiore Policlinico, Milan, Italy; 3Papworth Hospital, Cambridge, UK; 4Onassis Cardiac Surgery Center, Athens, Greece; 5Clinique Saint Hilaire, Rouen, France; 6Vivantes Netzwerk für Gesundheit GmbH, Berlin, Germany; 7Azienda Ospedaliera Villa Sofia, Palermo, Italy; 8Hospital Universitari Germans Trias i Pujol, Badalona, Spain; 9Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia; 10Dorset County Hospital, Dorchester, UK Objective: This study investigates the safety and efficacy of a third-generation drug-eluting stent (DES) with biodegradable polymer in the complex patient population of diabetes mellitus (DM). Clinical trial registration: ISRCTN81649913. Background: Percutaneous coronary interventions in patients with DM are associated with a higher incidence of death, restenosis, and stent thrombosis as compared to non-diabetic patients. The use of a DES has been shown to improve outcomes in diabetic patients. Methods: Out of 3,067 patients, enrolled in 126 centers worldwide in the NOBORI 2 registry, 888 patients suffered from DM, 213 of them (14%) being insulin-dependent DM (IDDM). Two years’ follow-up has been completed in this study. Results: At 1- and 2-year follow-up, 97% and 95% of the patients, respectively, were available. The reported target lesion failure (TLF) rates at 1- and 2-year follow-up were 6.0% and 7.2% in the DM group, respectively, and 3.0% and 4.2% in the non-DM group, respectively (P |