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临床试验/NCT01008085
NCT01008085已完成3 期

Randomized Comparison Between the STENTYS Self-expanding Coronary Stent and a Balloon-expandable Stent in Acute Myocardial Infarction - APPOSITION II

Stentys1 个研究点 分布在 1 个国家目标入组 80 人开始时间: 2009年11月1日最近更新:
适应症

试验速览

阶段
3 期
状态
已完成
发起方
Stentys
入组人数
80
试验地点
1
主要终点
Stent strut apposition measured by optical coherence tomography (OCT)

研究概览

简要总结

Study hypothesis: the Stentys self-expandable Stent results into a better alignment of the struts to the vessel wall than a balloon-expandable stent within a few days after the procedure in acute myocardial infarction patients.

详细描述

Stent strut malapposition and stent underexpansion are a common phenomenon in AMI as a result of the changing anatomy after an AMI has occurred (thrombus dissolution, resolution of spasm) with the traditional balloon-expandable stent treatment. A self-expanding stent might lead to better stent strut apposition as it follows the contours of the vessel wall due to its self-expanding properties. This might result into better long term clinical outcomes like lower thrombosis rates.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Subject 18 years old.
  • Acute Myocardial Infarction defined as presence of at least two of the three items below:
  • Detection of rise of cardiac biomarkers with a least one value above the 99th percentile of the upper reference limit (URL)
  • Symptoms of ischaemia (chest pain) >20 minutes
  • ECG changes indicative of new ischaemia: new ST-T changes (ST deviation ≥0.2mV precordial leads and/or ≥0.1mV limb leads) or new LBBB)
  • Reperfusion expected to be achieved within 12 hours from the onset of symptoms
  • Subject understands the nature of the procedure and provides written informed consent prior to the catheterization procedure.
  • Subject is willing to comply with specified follow-up evaluation and can be contacted by telephone.
  • Acceptable candidate for coronary artery bypass graft (CABG) surgery.
  • Male or non-pregnant female subject.
  • Angiographic Inclusion Criteria:
  • Reference vessel diameter >2.5mm and <4.0mm by visual estimate.
  • Target lesion <30mm in length by visual estimate

排除标准

  • Currently enrolled in another investigational device or drug study that has not completed the primary endpoint or that clinically interferes with the current study endpoints.
  • Coronary or cardiac intervention or major surgery of any kind within 30 days prior to the procedure.
  • Target vessel supplied by by-pass vessel
  • Patients on anticoagulation therapy (Coumadin)
  • Patient received thrombolytic therapy.
  • Myocardial infarction due to stent thrombosis, or infarct lesion at the side of a previously implanted stent
  • Cardiogenic shock
  • Any previous stent placement within 10mm (proximal or distal) of the target lesion.
  • Co-morbid condition(s) that could limit the subject's ability to participate in the study or to comply with follow-up requirements, or impact the scientific integrity of the study.
  • Concurrent medical condition with a life expectancy of less than 6 months.
  • Left ventricular ejection fraction (LVEF) <30% at the most recent evaluation.
  • Cerebrovascular accident or transient ischemic attack in the last 6 months.
  • Known hypersensitivity or contraindication to aspirin, heparin or bivalirudin, clopidogrel or ticlopidine, cobalt, nickel, or sensitivity to contrast media, which cannot be adequately pre-medicated.
  • Known serum creatinine level >2.5mg/dl or presence or history of renal failure
  • Angiographic Exclusion Criteria:
  • Unprotected left main coronary artery disease (obstruction greater than 50% in the left main coronary artery that is not protected by at least one non-obstructed bypass graft to the left anterior descending (LAD) or left circumflex (LCX) artery or a branch thereof).
  • Target vessel is excessively tortuous (two bends >90˚ to reach the target lesion).
  • Lesion location that is aorto-ostial or within 5mm of the origin of the LAD or LCX.
  • Target lesion is severely calcified.

结局指标

主要结局

Stent strut apposition measured by optical coherence tomography (OCT)

时间窗: 3 days after procedure

次要结局

  • Stent thrombosis(30 days and 6 months)

研究者

发起方
Stentys
申办方类型
Industry

研究点 (1)

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