In-stent Arterial Restenosis
Conditions
Keywords
Drug-eluting stent
Brief summary
The purpose of this study is to evaluate the feasibility, safety, and effectiveness of EndeavorTM ResoluteTM and Xience VTM stent implantation in patients with restenosis following drug-eluting stent (DES) implantation. The investigators will evaluate clinical, angiographic and intravascular ultrasound (IVUS) assessment of 9-month efficacy of EndeavorTM ResoluteTM or Xience VTM implantation in DES restenosis and assess the vascular changes of re-treatment with DES for DES restenosis using follow-up IVUS analysis. In addition, the investigators will evaluate the effectiveness of retreatment with EndeavorTM ResoluteTM or Xience VTM stent implantation in patients with restenosis after DES
Interventions
for each lesion, randomized either Xience V stent or Endeavor Resolute stent
Sponsors
Study design
Eligibility
Inclusion criteria
* In-stent restenosis (over 50% by quantitative angiographic analysis) following all types of DES; only insegment restenotic lesions without ISR are not included * Evidence of myocardial ischemia due to restenosis (e.g., stable, unstable angina, recent infarction, silent ischemia, positive functional study or a reversible changes in the ECG with or without ischemia) or over 70% by quantitative angiographic analysis * Repeat revascularization, needed with another stent (single stent implanted lesion, lesion length no more than 28mm ) * IVUS available lesions * Non-emergent conditions * Patients confirmed about study enrollment and 9 month followup angiogram and IVUS
Exclusion criteria
Lesion & Procedural
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| In-stent neointimal volume index | 9 months on IVUS |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Major adverse cardiovascular events | 12 months | Safety end-point; to evaluate the procedural success and the incidence of 12-month death, MI, target-vessel failure (TVF), or stent thrombosis |
| Efficacy end-point | 9 months | Efficacy end-point; to evaluate the 9-month binary angiographic restenosis (≥50 percent in-stent diameter stenosis) and late loss, vascular remodeling during follow-up |
Countries
South Korea