Late Incomplete Stent Apposition Evaluation II: Comparison Between Polimer-based and No-polimer Stent System. IVUS Based Study (LISAII)
Late Incomplete Stent Apposition Evaluation II: Vascular Effects Evaluation After Polimer and No-polimer Based Coronary Artery Drug Eluting Stent Ilmplantation. An IVUS Based Study
Vascular effects evaluation after non-polimeric and polimeric paclitaxel stent implantation.In particular the investigators will use Taxus )as a polimeric stent)and Axxion (as a non-polimeirc)stent system. The investigators will look at late stent malapposition by means of intracoronary ultrasound imaging technique (IVUS) at baseline and 9 months follow-up. The investigators sought to compare the two stent types with the same drug to verify the polimer role. The polimer itself seems to provoke inflammation and hypersensibility if the arterial wall and it seems to be the base of a process of positive remodeling found at drug eluting stent implantation site.
This positive remodeling is the mechanism producing late stent malapposition which on its turn can determine stent thrombosis, as demonstrated by pathological studies. At the same time the investigators will study the incidence of clinical events like myocardial infarction, stent thrombosis, TLR and death along with the incidence of angiographic restenosis at 2 years follow up.
研究概览
研究类型
注册 (预期的)
阶段
- 第四阶段
联系人和位置
学习地点
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Barcelona、西班牙、08025
- 招聘中
- Hospital de La Santa Creu Y Sant Pau
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首席研究员：
- Manel Sabate, MD, PhD
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接触：
- Manel sabate, MD, PhD
- 电话号码：0034935565851
- 邮箱：msabatet@santpau.es
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接触：
- Clarissa Cola, MD
- 电话号码：0034935565851
- 邮箱：clarissacola@gmail.com
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副研究员：
- Victoria Martin Yuste, MD
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副研究员：
- Clarissa Cola, MD
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Patients with coronary artery stenosis in one, two or three vessels, and with objective evidence of isquemia.
- The stenosis must allow IVUS analisis, must be treatable with angioplasty with stent
- Target Vessel diameter must be between 2.25- 4 mm with QCA.
- Patients must sign informed consent
- Patients and their physician must accept the angiographic follow-up
Exclusion Criteria:
- 18 years old patients
- SCA within the last 72 hours, or patients with CK twice over the upper normal limit
- Pregnancy
- Target vessel diameter < 2.25 or > 4 mm by QCA
- Previous brakitherapy or DES in the target lesion
- Restenotic lesion
- -Allergy to aspirin, clopidogrel or ticlopidin
- Patients enrolled in other studies or trials
- By-pass graft lesions
- Real bifurcationa lesions
- Severe Renal insufficiency (creatinin clearance < 30 ml/min).
- Severe Liver failure(GOT y GPT > 3 times the upper normal limit)
- Life expectancy < 1 year because of other pathologies
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
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有源比较器：Polimeric-PES
Arm receiving polimeric stent (Taxus)
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Coronary artery stent implantation
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有源比较器：Non-Polimeric PES
Arm receiving non-polimeric PES (axxion)
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Coronary artery stent implantation
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研究衡量的是什么？
主要结果指标
结果测量 |
大体时间 |
|---|---|
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Intra coronary ultrasound analysis to verify stent malapposition at follow-up
大体时间：9 months
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9 months
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次要结果测量
结果测量 |
大体时间 |
|---|---|
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Clinical events (myocardial infarction, TLR,at 1, 9, 12, 24 months follow-up:; Incidence of restenosis with QCA at 9 months follow-up Intimal hiperplasia measured by IVUS at 9 months follow-up; Stent Thrombosis.
大体时间：9 months and 2 years
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9 months and 2 years
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合作者和调查者
调查人员
- 首席研究员：Manel Sabate, MD, PhD、Hospital de la Santa Creu Y Sant Pau, Unidad de Hemodinamica
出版物和有用的链接
一般刊物
- Hong MK, Mintz GS, Lee CW, Park DW, Lee SW, Kim YH, Kang DH, Cheong SS, Song JK, Kim JJ, Park SW, Park SJ. Impact of late drug-eluting stent malapposition on 3-year clinical events. J Am Coll Cardiol. 2007 Oct 9;50(15):1515-6. doi: 10.1016/j.jacc.2007.07.038. Epub 2007 Aug 27. No abstract available.
- Shiratori Y, Cola C, Brugaletta S, Alvarez-Contreras L, Martin-Yuste V, del Blanco BG, Ruiz-Salmeron R, Diaz J, Pinar E, Marti V, Garcia-Picart J, Sabate M. Randomized comparison between polymer-free versus polymer-based paclitaxel-eluting stent: two-year final clinical results. Circ Cardiovasc Interv. 2014 Jun;7(3):312-21. doi: 10.1161/CIRCINTERVENTIONS.113.000800. Epub 2014 May 6.
研究记录日期
研究主要日期
学习开始
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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