Clinical outcomes of complex real-world diabetic patients treated with amphilimus sirolimus-eluting stents or zotarolimus-eluting stents: A single-center registry

Objective: To assess clinical outcomes of Amphilimus Sirolimus-Eluting Stents (A-SES) as compared to Zotarolimus-Eluting Stents (ZES) in complex real-world diabetic patients. Background: Patients with diabetes mellitus represent one of the most challenging scenarios with high rates of restenosis and stent thrombosis in the current era of drug-eluting stents. Hence, we assessed the safety of A-SES versus ZES in complex diabetic patients. Methods: In this observational study, we analyzed all consecutive patients with diabetes mellitus referred to our center from November 2012 to November 2014. The primary outcome was target-lesion failure at 1-year follow-up. Results: A total of 165 consecutive diabetic patients underwent percutaneous coronary intervention with A-SES or ZES for stable coronary artery disease in our tertiary center. Using the Kaplan Meier method the cumulative incidence of target-lesion failure was 6.7% (5.9% A-SES versus 7.5% ZES, p = 0.19) at 1-year follow-up. Event-free survival at 1. year follow-up was similar (89.4% A-SES vs. 83.3% ZES, p = 0.29). Interestingly, we did not find any cases of definite-, and only one case of probable stent thrombosis in this high risk cohort. Conclusion: In this real-world registry, A-SES and ZES seems to be associated with promising 1-year clinical safety outcomes following PCI in a contemporary cohort of high-risk diabetic patients. Our results should be considered hypothesis generating, as the clinical safety of A-SES has to be confirmed in a large trial.