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临床试验/NCT04627870
NCT04627870招募中不适用

A Prospective, Multi-center, Randomized Controlled Trial to Evaluate the Safety and Feasibility of Intracranial Drug-coated Balloon Catheter in the Treatment of Intracranial In-stent Restenosis

Acotec Scientific Co., Ltd1 个研究点 分布在 1 个国家目标入组 20 人开始时间: 2021年5月26日最近更新:
适应症

试验速览

阶段
不适用
状态
招募中
入组人数
20
试验地点
1
主要终点
Target vessel stroke or death event

研究概览

简要总结

The purpose of the study is to evaluate the safety and feasibility of drug coated balloon in treatment of intracranial in-stent restenosis.

详细描述

This study is a prospective, multi-center, randomized controlled trial using drug coated balloon versus uncoated PTA balloon in treatment of intracranial in-stent restenosis.

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
Single (Outcomes Assessor)

入排标准

年龄范围
18 Years 至 80 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • 18 to 80 years of age
  • Confirmed by DSA: in-stent restenosis (ISR) at intracranial segment of internal carotid artery, middle cerebral artery, basilar artery and vertebral artery; ISR is defined as >50% stenosis within or immediately adjacent (within 5 mm) of the implanted stent and >20% absolute luminal loss
  • presence of ISR associated ischemic stroke or transient ischemic attacks even with medical treatment and strict control of risk factor
  • asymptomatic ISR with severe hypoperfusion in the ISR territories, confirmed by a cerebral blood flow decrease of ≥30% when compared with the perfusion on the contralateral side for anterior circulation lesions or the anterior circulation territory for posterior circulation lesions on CT perfusion, and/or by an American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) Collateral Flow Grading System score <3 on DSA.
  • the diameter of target vessel is 2.0-4.5mm
  • there is only one intracranial ISR lesion per subject
  • baseline mRS score ≤2
  • Voluntarily participate in this study and sign the informed consent form

排除标准

  • Patients with stroke within 2 weeks before procedure;
  • any history of brain parenchyma or other intracranial subarachnoid, subdural or extradural hemorrhage in the past 30 days.
  • Those who have received thrombolysis within 24 hours before procedure;
  • Deterioration of neurological function within 24 hours before procedure (defined as NIHSS score increased by ≥ 4 points over the baseline)
  • patients with thrombus in target vessels.
  • in addition to ISR lesions, there are other primary intracranial lesions that need endovascular treatment.
  • Major surgery (including open femoral, aortic or carotid artery surgery) is planned within the past 30 days or within 90 days.
  • patients with renal artery, iliac artery and cardiac coronary artery requiring simultaneous intervention.
  • Combined with intracranial tumors, aneurysms or intracranial arteriovenous malformations.
  • Cardiac stroke or potential cardiogenic thromboembolism, with any of the following cardiogenic embolism causes: chronic or paroxysmal atrial fibrillation, mitral valve stenosis, mechanical valves, endocarditis, intracardiac thrombus or implant, dilated cardiomyopathy, spontaneous acoustic imaging of the left atrium;
  • patients with myocardial infarction within 6 weeks before procedure.
  • those who cannot tolerate general anesthesia due to insufficiency of heart, lung and other important organs.
  • patients with known severe hepatic and renal dysfunction.
  • patients with hemoglobin < 100g / L, platelet count < 100,000 / mm3, INR > 1.5or with uncorrectable factors leading to bleeding.
  • patients who cannot receive dual antiplatelet therapy due to existing diseases or who are tested to be tolerant to dual antiplatelet therapy.
  • Patients with known severe allergies or contraindications to heparin, paclitaxel, contrast agents and other related intravascular treatment drugs
  • current alcohol or drug abuse, uncontrolled severe hypertension (systolic blood pressure > 180mmHg or diastolic blood pressure > 110mmHg).
  • Life expectancy < 1 year.
  • pregnant or lactating women.
  • patients who are unable to complete follow-up due to cognitive, emotional disorders or mental illness.
  • Patients who are participating in other drug/device clinical trials and have not completed all follow-ups required by the programme;
  • According to the judgement of the investigator, other situations that are not suitable for enrollment

结局指标

主要结局

Target vessel stroke or death event

时间窗: within 30 days post-procedure

Target-vessel related stroke (bleeding and ischemia) or death within 30 days postoperatively.

次要结局

  • Cerebral parenchyma hemorrhage, subarachnoid hemorrhage or intraventricular hemorrhage events(between 31 days and 12 months post-procedure)
  • device success rate(assessed during procedure)
  • target vessel ischemia stroke event(between 31days and 12months post-procedure)
  • target vessel death event(between 31 days and 12 months post-procedure)
  • National Institutes of Health Stroke Scale score(at 12 months post-procedure)
  • Modified Rankin Score score(at 12 months post-procedure)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (1)

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