First-in-man randomized comparison of BuMA Supreme biodegradable polymer sirolimus-eluting versus durable polymer zotarolimus-eluting coronary stents: The PIONEER trial

Clemens von Birgelen, Taku Asano, Giovanni Amoroso, Adel Aminian, Salvatore Brugaletta, Mathias Vrolix, Rosana Hernandez-Antolín, Pim van de Harst, Andres Iñiguez, Luc Janssens, Pieter C. Smits, Joanna J. Wykrzykowska, Vasco Gama Ribeiro, Helder Periera, Pedro Canas da Silva, Jan J. Piek, Yoshinobu Onuma, Patrick W. Serruys, Manel Sabaté

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16 Citations (Scopus)

Abstract

A second iteration of a sirolimus-eluting stent (SES) that has a biodegradable PLGA-polymer coating with electrografting base layer on a thin-strut (80µm) cobalt-chromium platform (BuMA Supreme; SINOMED, Tianjin, China) has been developed. This first-in-man trial assessed the efficacy and safety of the novel device. This randomized, multi-center, single-blinded, non-inferiority trial compared BuMA Supreme SES versus contemporary durable polymer zotarolimus-eluting stents (ZES) in terms of angiographic in-stent late lumen loss (LLL) at 9-months follow-up as the primary endpoint. A total of 170 patients were randomly allocated to treatment with SES (n=83) or ZES (n=87). At 9-month angiographic follow-up, in-stent LLL was 0.29±0.33mm in SES and 0.14±0.37mm in ZES (Pnon-inferiority=0.45). The in-stent percent diameter stenosis and the binary restenosis rate of the two treatment arms were similar (19.2±12.0% vs. 16.1±12.6%, p=0.09, and 3.3% vs. 4.4%, P=1.00, respectively). At 12-month clinical follow-up, there was no difference between treatment arms with regard to a device-oriented composite clinical endpoint (4.9% vs. 5.7%; p=0.72). The PIONEER trial did not meet its primary endpoint in terms of in-stent LLL at 9-month follow-up. However, this result did not translate into any increase in restenosis rate or impairment in 12-month clinical outcomes
Original languageEnglish
Pages (from-to)2026-2035
JournalEurointervention
Volume13
Issue number17
Early online date2017
DOIs
Publication statusPublished - 2018

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