Comparison of the Angiographic Result of the Orsiro Hybrid Stent With Resolute Integrity Stent — ORIENT  

Coronary Artery Disease Clinical Trial

Official title: Multicenter, Randomized, Open Label, Parallel Group Study to Evaluate the Safety and Efficacy of Orsiro Hybrid Drug Eluting Stent

Status Completed

Clinical Trial Summary

The purpose of this multicenter, randomized, open label, parallel arm study whether the newest 3rd generation stent - Orsiro hybrid sirolimus-eluting stent is noninferior to the newest 2nd generation stent - Resolute Integrity zotarolimus-eluting stent in terms of 9 months in-stent late lumen loss. 345 Korean patients with a wide variety of coronary heart disease will be enrolled to this "all-comers" trial to give definite answer to the above hypothesis that is urgently needed.

Clinical Trial Description

The rate of restenosis after percutaneous coronary intervention (PCI) has dramatically decreased since the introduction of drug-eluting stents (DES). However, restenosis still remains a problem and some papers reported that the rate of restenosis can even go up to nearly 20% after the first-generation DES implantation, depending on the complexity of target lesion. Furthermore, there arises a concern about thrombogenic risk of these DES at the expense of reduced restenosis. Therefore, works aiming to reduce both restenosis and thrombosis are on-going, and there has been a rush of various second-generation DES with "biocompatible but non-absorbable polymer" and third-generation DES with "bioabsorbable polymer".

Recently, Orsiro hybrid sirolimus-eluting stent (Orsiro SES, Biotronik AG, Bulach, Switzeland) has been developed. It has a unique hybrid combination of polymers coated on thin cobalt-chromium struts (60um). The BIOlute® active component is a bioabsorbable polymer matrix combined with an anti-proliferative drug, sirolimus, and elutes the drug in a controlled manner after implantation, degrades over time and leaves only the PROBIO® coated stent behind in the long-term. The PROBIO® passive coating encapsulates the stent and protects interaction between the metal stent and the surrounding tissue. Although Orsiro SES showed excellent results in terms of late lumen loss at 9 months in first-in-man single arm trial (BIOFLOW-I trial), randomized controlled trials evaluating its efficacy and safety are limited to date.

The ORIENT Trial will evaluate the angiographic and clinical outcomes of the innovative third-generation DES, Orsiro SES, compared with the latest second-generation DES, Resolute Integrity zotarolimus-eluting stent (ZES-I, Medtronic Cardiovascular, Santa Rosa, California, USA), for treatment of patients with coronary artery disease. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Angina, Stable
• Angina, Unstable
• Coronary Artery Disease
• Coronary Disease
• Coronary Heart Disease
• Heart Diseases
• Infarction
• Myocardial Infarction
• Myocardial Ischemia
• Non-ST-segment Elevation Myocardial Infarction
• ST-segment Elevation Myocardial Infarction
• Stable Angina
• Unstable Angina

• NCT number: NCT01826552
• Study type: Interventional
• Source: Seoul National University Bundang Hospital
• Status: Completed
• Phase: Phase 4
• Start date: September 2013
• Completion date: June 2015