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Rigshospitalet - a part of Copenhagen University Hospital
E-pub ahead of print

Efficacy of Thin- Versus Thick-Strut Polymer-Free Biolimus-Eluting Stents: the Biofreedom QCA Randomized Trial

Research output: Contribution to journalJournal articleResearchpeer-review


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AIMS: To evaluate the efficacy of the new BioFreedom Ultra™ drug-coated stent with a thin-strut cobalt-chromium platform (BF-CoCr) compared to the BioFreedom™ drug-coated stent with a stainless-steel platform (BF-SS) in an all-comers population undergoing percutaneous coronary interventions (PCI).

METHODS AND RESULTS: This was a prospective, multi-center, non-inferiority trial. The primary endpoint was in-stent late lumen loss (LLL) as determined by quantitative coronary angiographic at 9-month follow-up. Clinical evaluation was performed at 1 year. A total of 200 patients were randomized (1:1) to either the BF-CoCr or the BF-SS stent at 8 centers in Spain and Denmark. Baseline clinical and lesion characteristics were similar among the groups. Mean age was 66 years and 23% were females. The mean number of stents implanted per patient was 1.5. At 9-month follow-up, mean in-stent LLL was 0.34±0.49mm in BF-CoCr versus 0.29±0.37mm in the BF-SS, p=0.005 for non-inferiority. At 1-year, target lesion failure was similar between groups (7.3% in Bf-CoCr vs 9.3% in the BF-SS group; p=0.60).

CONCLUSIONS: The BF-CoCr was non-inferior to the BF-SS in terms of in-stent LLL at 9 months. Larger studies powered for clinical endpoints are warranted to compare the efficacy of this new platform with currently available DES.

Original languageEnglish
JournalEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
Publication statusE-pub ahead of print - 12 Jan 2021

ID: 62372698