REal World Advanced Experience of BioResorbable ScaffolD by SMart Angioplasty Research Team (SMART REWARD)

Study Overview
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Brief Summary
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Current drug-eluting stents (DES) has demonstrated excellent clinical outcomes in patients with coronary artery disease. However, a continued risk of clinical events even several years after the procedure is reported. Stent platform or polymer-associated inflammation may play a role. Bioresorbable scaffold (BRS) is known to disappear 2 to 3 years after the implantation, which may result in the more favorable very long-term clinical outcomes compared with metallic stents. The initial clinical experiences of BRS in relatively simple lesion subsets were comparable to DESs. BRS, however, is limited by the disadvantageous mechanical characteristics such as thick strut and the risk of fracture by overdilation. There is concern that BRS is less optimal for complex lesion subsets such as bifurcation lesions, calcified tortuous lesions, or diffuse long lesions. Real world registry is needed to test the feasibility and safety of BRS in these complex lesion subsets.

Official Title
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REal World Advanced Experience of BioResorbable ScaffolD by SMart Angioplasty Research Team (SMART REWARD)

Conditions
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Acute Coronary Syndromes

Intervention / Treatment
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* Device: Bioresorbable scaffold (BRS)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subject must be between 19 and 70 years old. Patients with a significant lesion in a de novo coronary artery: a percent diameter stenosis (DS) 50% with 1) a positive history of recurrent angina pectoris; (2) objective signs of ischemia at rest (ECG changes) or during exercise test (or equivalent); or (3) abnormal results of any invasive functional diagnostic test (eg, fractional flow reserve) or a percent DS ≥70% even in the absence of the above-mentioned ischemic signs or symptoms. Patients are scheduled for coronary intervention He/she or his/her legally authorized representative provides written informed consent Exclusion Criteria: Experience of cardiopulmonary resuscitation Cardiogenic shock Expected survival less than 2 years Pregnancy or breast feeding Opinion of the investigator, would interfere with evaluation of study treatment or interpretation of patient safety or study results

Ages Eligible for Study
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Minimum Age: 19 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Bioresorbable Scaffold<br>Patients receiving percutaneous coronary intervention (PCI) for coronary artery disease using Absorb™(Abbott Vascular) | Device: Bioresorbable scaffold (BRS)<br>* The implantation procedure of an Absorb™ is similar to a metallic stent.<br>* Other names: Absorb™ (Abbott Vascular);|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| cardiac death | Target vessel failure (TVF) of cardiac death, myocardial infarction (MI) attributed to the target vessel, and target vessel revascularization (TVR) | 2 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Device success | Successful delivery and deployment of the study scaffold at the intended target lesion and successful withdrawal of the delivery system with attainment of final in-scaffold residual stenosis of less than 30% by quantitative coronary angiography (QCA) (by visual estimation if QCA unavailable). | maximum of 7 days | 
| Procedural success | Achievement of final in-scaffold residual stenosis of less than 30% by QCA (by visual estimation if QCA unavailable) with successful delivery and deployment of at least one study scaffold at the intended target lesion and successful withdrawal of the delivery system for all target lesions without the occurrence of cardiac death, target vessel MI or repeat target lesion revascularization (TLR) during the hospital stay (maximum of 7 days). | maximum of 7 days | 
| Target vessel failure (TVF) | cardiac death, target vessel MI, or TVR | 1, 3, and 5 years | 
| Each component of Target vessel failure (TVF) | Cardiac death,Vascular death,Non-cardiovascular death,Myocardial Infarction (MI) | 1, 2, 3 and 5 years | 
| Target lesion failure | Target lesion failure of cardiac death, MI attributed to the target vessel, and Target Lesion Revascularization(TLR). TVR is defined as any repeat percutaneous intervention or surgical bypass of any segment of the target vessel. The target vessel is defined as the entire major coronary vessel proximal and distal to the target lesion, which includes upstream and downstream branches and the target lesion itself. | 1, 2, 3 and 5 years | 
| Definite or probable stent thrombosis |  | 1, 2, 3 and 5 years | 
| Periprocedural enzyme elevation |  | 1, 2, 3 and 5 years |