XIENCE V™ everolimus-eluting coronary stent system: A preclinical assessment

Laura E.L. Perkins, Katrin H. Boeke-Purkis, Qing Wang, Steven K. Stringer, Leslie A. Coleman

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


Background: The XIENCE V™ everolimus-eluting coronary stent system is a second-generation drug-eluting stent designed for safety and efficacy in the interventional treatment of coronary artery disease and in preventing in-stent restenosis. A comprehensive preclinical program was completed to aid in the scientific design and to demonstrate the safety of XIENCE V. Methods: Studies evaluating clinical dose selection, pharmacokinetics, single and overlapping stent safety, polymer safety, and maximum dose (8× everolimus) safety were conducted in the porcine coronary arterial model at 28, 90, 180 days, and 1 and 2 years. Additionally, a subset of studies was conducted in the rabbit iliac arterial model. Results: Morbidity and mortality rates for all preclinical studies were exceptionally low, being less than 1%. The arterial response observed in the clinical dose selection study and in all safety studies was typified by benign neointimal hyperplasia with endothelialization by 28 days. Everolimus was released in a controlled manner for 120 days and remained primarily localized within the stented arterial region, which was evidenced histologically as peristrut fibrin. The temporal presence of peristrut fibrin matched the everolimus-elution profile. Thrombosis, malapposition, medial loss, or other adverse effects were not observed in any preclinical studies. Conclusion: XIENCE V has demonstrated safety via an extremely comprehensive preclinical program published to date for a DES system, with data generated in two species to 2 years. The preclinical data, along with the SPIRIT clinical trial data, demonstrate the excellent safety and potential efficacy profile of XIENCE V.

Original languageEnglish (US)
Pages (from-to)S28-S40
JournalJournal of Interventional Cardiology
Issue numberSUPPL. 1
StatePublished - Apr 2009
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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