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EuroIntervention. 2018 Dec 7;14(11):e1207-e1214. doi: 10.4244/EIJ-D-18-00762.

Randomised comparison of a biodegradable polymer ultra-thin sirolimus-eluting stent versus a durable polymer everolimus-eluting stent in patients with de novo native coronary artery lesions: the meriT-V trial.

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Instituto Dante Pazzanese de Cardiologia, Sao Paulo, Brazil.



The aim of this study was to evaluate the safety and efficacy of the BioMime sirolimus-eluting coronary stent (SES) compared to the XIENCE family of everolimus-eluting coronary stents (EES) in the treatment of patients with de novo native coronary artery lesions.


The meriT-V is a prospective, multicentre, randomised, open-label, active-controlled, non-inferiority trial. A total of 256 patients with up to two de novo native coronary artery lesions were enrolled and randomly assigned (2:1) to BioMime SES or XIENCE EES. BioMime SES was non-inferior to XIENCE EES for the primary endpoint of in-stent late lumen loss (0.15±0.27 mm vs. 0.15±0.29 mm; difference: -0.006 mm; 95% confidence interval: -0.085 to 0.072; p=0.87; p for non-inferiority <0.0001) at nine-month follow-up. The major adverse cardiac events rate was numerically lower in the BioMime SES group (2.98% vs. 7.14%; p=0.13), driven by a statistically significant lower risk of any myocardial infarction (0.60% vs. 4.76%; p=0.03), when compared with the XIENCE EES group. There was no difference in target vessel myocardial infarction (p=0.62) between the groups. There was no definite or probable stent thrombosis in either group.


In the treatment of de novo native coronary artery lesions, the biodegradable polymer ultra-thin SES (BioMime) was non-inferior to a durable polymer EES (XIENCE) at nine-month follow-up. Further studies powered for clinical endpoints are needed.

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