Coronary Artery Disease, Coronary Stent Occlusion
Conditions
Keywords
Optical Coherence Tomography, Drug-Eluting Stent
Brief summary
The purpose of this study is to evaluate the efficacy of a novel dual drug-eluting stent (DXR stent), which slowly releases both cilostazol and paclitaxel, for strut coverage, malapposition, and thrombus formation, assessed by an optical coherence tomography.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
1. Patient * Age \>=19 years * Clinically indicated to invasive coronary angiography * Patient capable and willing of giving written informed consent 2. Angiographic * coronary artery disease confined to native coronary artery * \>50% diameter stenosis by invasive coronary angiography * reference diameter 2.5-4.0mm, lesion length ≤30 mm
Exclusion criteria
1. Patient * Inability to provide written informed consent * Serious comorbidity which may affect the trial by decision of investigators * Prior CABG to target vessel * Congestive heart failure with NYHA Class III or IV or left ventricular ejection fraction less than 30% * Prior ST elevation myocardial infarction within 72 hours from the procedure * Hemodynamic or electrical instability including shock * Serious coronary artery spasm, unrelated to catheter * Pregnancy or possible pregnant status * Allergy to iodinated contrast agent * Serum creatinine \>=1.7 mg/dL or creatinine clearance \<= 30 ml/min * ST elevation myocardial infarction 2. Angiographic (OCT) * Left main disease * Severely calcified lesion * Severely tortuous, or TIMI flow grade 0 or 1 by angiography, or inappropriate for OCT procedure by investigators' decision
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Stent strut coverage (Incidence of uncovered strut) | 6 month | Coronary angiography with OCT follow up |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Stent malapposition | 6 month | Coronary angiography with OCT follow up |
| Stent thrombosis | 6 month | Coronary angiography with OCT follow up |
Other
| Measure | Time frame | Description |
|---|---|---|
| major adverse cardiovascular event (all-cause death, stroke, unexpected revascularization) | 1 year | Clinical outcome follow up |
| long term major cardiovascular event major adverse cardiovascular event (all-cause death, stroke, unexpected revascularization) | 3 year | Clinical outcome follow up |
Countries
South Korea