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Five-year clinical performance of a biodegradable polymer-coated biolimus-eluting stent in unselected patients
  1. Gian Battista Danzi1,
  2. Raffaele Piccolo1,2,
  3. Bernard Chevalier3,
  4. Philip Urban4,
  5. Farzin Fath-Ordoubadi5,
  6. Didier Carrie6,
  7. Marcus Wiemer7,8,
  8. Antonio Serra9,
  9. William Wijns10,
  10. Petr Kala11,
  11. Amerigo Stabile12,
  12. Javier Goicolea Ruigomez13,
  13. Dragan Sagic14,
  14. Peep Laanmets15,
  15. Gerhard Strupp16,
  16. Nick West17
  17. on behalf of Nobori 2 Investigators
  1. 1Division of Cardiology, Ospedale Santa Corona, Pietra Ligure, Italy
  2. 2Bern University Hospital, Bern, Switzerland
  3. 3Institut Cardiovasculaire Paris Sud, Massy/Quincy, France
  4. 4Hôpital de la Tour, Geneva, Switzerland
  5. 5Royal Infirmary, Manchester, UK
  6. 6Centre Hospitalier Universitaire Rangueil, Toulouse, France
  7. 7Herz-und Diabeteszentrum North-Rhine Westphalia, Bad Oeynhausen, Germany
  8. 8Department of Cardiology and Intensive Care Medicine, Johannes Wesling Hospital Minden, Minden, Germany
  9. 9Hospital de la Sta. Creu i St. Pau, Barcelona, Spain
  10. 10Cardiovascular Research Center OLV Hospital, Aalst, Belgium
  11. 11University Hospital Brno, Brno, Czech Republic
  12. 12A.R.N.A.S. Ospedale Civico, Palermo, Italy
  13. 13Hospital Puerta de Hierro, Madrid, Spain
  14. 14Institute for Cardiovascular Disease Dedinje, Belgrade, Serbia
  15. 15North-Estonia Regional Hospital, Tallinn, Estonia
  16. 16Klinikum Fulda AG, Fulda, Germany
  17. 17Papworth Hospital, Cambridge, UK
  1. Correspondence to Gian Battista Danzi, Division of Cardiology, Ospedale Santa Corona, Pietra Ligure (SV), Italy; gbdanzi{at}


Objective To evaluate the long-term follow-up of the unrestricted use of a biodegradable polymer-coated drug-eluting stent in patients undergoing percutaneous coronary intervention (PCI).

Methods The Nobori 2 study was a prospective, multicentre, observational registry evaluating the safety and the efficacy of the biodegradable polymer biolimus-eluting stent (BP-BES) among 3067 patients recruited at 125 international sites. The primary combined endpoint was a composite of cardiac death, myocardial infarction and target-lesion revascularisation (TLR).

Results Five-year follow-up was available in 2738 (89.3%) patients. The combined endpoint occurred in 268 patients (10%, 95% CIs 8.9% to 11.3%) at 5 years, with 3.9% of events during the first year and 6.2% during years 1–5 of follow-up. Cumulative rates of TLR and definite/probable stent thrombosis were 5.3% (95% CI 4.5% to 6.3%) and 1.1% (95% CI 0.8% to 1.6%), respectively. Between 1 and 5 years, TLR and very late stent thrombosis rates were 3.5% (95% CI 2.8% to 4.4%) and 0.6% (95% CI 0.3% to 1.1%), respectively. Previous PCI (HR, 2.05, 95% CI 1.68 to 2.50), moderate-to-severe renal disease (HR, 1.89, 95% CI 1.30 to 2.74) and peripheral vascular disease (HR, 1.86, 95% CI 1.38 to 2.52) were the three most powerful independent predictors of the combined endpoint at 5 years.

Conclusions The final 5-year follow-up of the Nobori 2 registry demonstrates the safety and effectiveness of the BP-BES in an unselected, broadly inclusive cohort of PCI patients, highlighting the excellent performance of this coronary stent technology after polymer biodegradation.

Trial registration number ISRCTN81649913; Results.

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