Targeted therapy with a localised abluminal groove, low-dose sirolimus-eluting, biodegradable polymer coronary stent (TARGET All Comers): a multicentre, open-label, randomised non-inferiority trial

Alexandra Lansky, William Wijns, Bo Xu, Henning Kelbæk, Niels van Royen, Ming Zheng, Marie-Angèle Morel, Paul Knaapen, Ton Slagboom, Thomas W Johnson, Georgios Vlachojannis, Karin E Arkenbout, Lene Holmvang, Luc Janssens, Andrzej Ochala, Salvatore Brugaletta, Christoph K Naber, Richard Anderson, Harald Rittger, Sergio BertiEmanuele Barbato, Gabor G Toth, Luc Maillard, Christian Valina, Paweł Buszman, Holger Thiele, Volker Schächinger, Andreas Baumbach, TARGET All Comers Investigators

26 Citations (Scopus)

Abstract

BACKGROUND: The FIREHAWK is a drug-eluting stent with a fully biodegradable sirolimus-containing polymer coating localised to recessed abluminal grooves on the stent surface. We investigated clinical outcomes with this targeted, low-dose, biodegradable polymer, sirolimus-eluting stent compared with XIENCE durable polymer, everolimus-eluting stents in an all-comers population.

METHODS: The TARGET All Comers study was a prospective, multicentre, open-label randomised non-inferiority trial done at 21 centres in ten European countries. Patients with symptomatic or asymptomatic coronary artery disease and objective evidence of myocardial ischaemia who qualified for percutaneous coronary intervention were randomised 1:1 to undergo implantation of a FIREHAWK or XIENCE. Randomisation was web-based, with random block allocation and stratification by centre and ST elevation myocardial infarction. Outcome assessors were masked to treatment allocation, but treating physicians and patients were not. The primary endpoint was target lesion failure at 12 months, a composite of cardiac death, target vessel myocardial infarction, or ischaemia-driven target lesion revascularisation. The control event rate for XIENCE was assumed to be 7%, the non-inferiority margin was 3.5%, and the primary analysis was in the intention-to-treat population, censoring patients who did not have either an event before 365 days or contact beyond 365 days. Late lumen loss was the primary endpoint of an angiographic substudy designed to investigate the non-inferiority of the FIREHAWK compared with the XIENCE stent. This trial is registered with ClinicalTrials.gov, number NCT02520180.

FINDINGS: From Dec 17, 2015, to Oct 14, 2016, 1653 patients were randomly assigned to implantation of the FIREHAWK (n=823) or XIENCE (n=830). 65 patients in the FIREHAWK group and 66 in the XIENCE group had insufficient follow-up data and were excluded from the analyses. At 12 months, target lesion failure occurred in 46 (6·1%) of 758 patients in the FIREHAWK group and in 45 (5·9%) of 764 patients in the XIENCE group (difference 0·2%, 90% CI -1·9 to 2·2, pnon-inferiority=0·004, 95% CI -2·2 to 2·6, psuperiority=0·88). There were no differences in ischaemia-driven revascularisation or stent thrombosis rates at 12 months. 176 patients were included in the angiographic substudy, in which in-stent late lumen loss was 0·17 mm (SD 0·48) in the FIREHAWK group and 0·11 mm (0·52) in the XIENCE group (p=0·48), with an absolute difference of 0·05 mm (95% CI -0·09 to 0·18, pnon-inferiority=0·024).

INTERPRETATION: In a broad all-comers population of patients requiring stent implantation for myocardial ischaemia, the FIREHAWK was non-inferior to the XIENCE as assessed with the primary endpoint of target lesion failure at 12 months and in-stent late lumen loss at 13 months. The FIREHAWK is a safe and effective alternative stent to treat patients with ischaemic coronary artery disease in clinical practice.

FUNDING: Shanghai Microport Medical.

Original languageEnglish
JournalLancet Oncology
Volume392
Issue number10153
Pages (from-to)1117-1126
Number of pages10
ISSN1470-2045
DOIs
Publication statusPublished - 29 Sept 2018

Keywords

  • Absorbable Implants
  • Aged
  • Drug-Eluting Stents
  • Equivalence Trials as Topic
  • Everolimus/administration & dosage
  • Female
  • Humans
  • Immunosuppressive Agents/administration & dosage
  • Intention to Treat Analysis
  • Male
  • Middle Aged
  • Myocardial Ischemia/surgery
  • Prospective Studies
  • Prosthesis Design
  • Sirolimus/administration & dosage
  • Treatment Outcome

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