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未破裂的脑动脉瘤:进化的预测 (U-CAN)

2026年9月22日 更新者:Nantes University Hospital

The protocol has many assets. A prospective nationwide recruitment allows for the inclusion of a large cohort of patients with UIA. It will combine accurate clinical phenotyping and comprehensive imaging with CAWE screening. Besides, it will enable to exploit metadata and to explore new pathophysiological pathways of interest by crossing clinical, genetic, biological, and imaging information.

研究概览

详细说明

Management of small (<7mm) unruptured intracranial aneurysms (UIA) remains controversial. Previous retrospective studies have suggested that post gadolinium arterial wall enhancement (AWE) of unruptured intracranial aneurysms on MR imaging may reflect aneurysm wall instability, and hence may highlight a higher risk of UIA growth over time. This multicentric prospective cohort aims at exploring vessel wall imaging findings of UIAs with consecutive follow-up to substantiate these assumptions.The objective is to develop diagnostic and predictive tools for the risk of IA evolution. The aim is to demonstrate in clinical practice the predictive value of (AWE) for UIA growth. The growth will be determined by any modification of the UIA measurement. Both UIA growth and the UIA wall enhancement will be assessed in consensus by two expert neuroradiologists.The French prospective UCAN project is a non-interventional international wide and multicentric prospective cohort. UIA of bifurcation between 3 and 7 mm for whom a clinical and imaging follow-up without occlusion treatment was scheduled by local multidisciplinary staff will be included. Extensive clinical, biological and imaging data will be recorded during a 3 years follow-up (visits at 1 and 3 years after inclusion).

研究类型

观察性的

注册 (估计的)

1000

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

学习地点

      • Besançon、法国
        • 招聘中
        • CHU de Besançon
        • 首席研究员:
          • Alessandra BIONDI
        • 接触:
      • Caen、法国
        • 招聘中
        • CHU de Caen
        • 接触:
        • 首席研究员:
          • Charlotte BARBIER
      • Clermont-Ferrand、法国
        • 招聘中
        • CHU de Clermont Ferrand
        • 接触:
        • 首席研究员:
          • Emmanuel CHABERT
      • Colmar、法国
        • 尚未招聘
        • Hôpitaux Civils de Colmar
        • 接触:
        • 首席研究员:
          • Pablo Ariel LEBEDINSKY
      • Dijon、法国
        • 招聘中
        • CHU Dijon
        • 接触:
        • 首席研究员:
          • Pierre THOUANT
      • Poitiers、法国
        • 招聘中
        • CHU de Poitiers
        • 首席研究员:
          • Samy BOUCEBCI
        • 接触:
      • Saint-Etienne、法国
        • 招聘中
        • CHU de saint Etienne
        • 首席研究员:
          • Marina SACHET
        • 接触:
      • Strasbourg、法国
        • 招聘中
        • CHU de Strasbourg
        • 首席研究员:
          • Raoul POP
        • 接触:
      • Suresnes、法国
        • 招聘中
        • Hôpital Foch
        • 首席研究员:
          • Arturo CONSOLI
        • 接触:
      • Toulon、法国
    • Bouches-du-Rhône
      • Marseille、Bouches-du-Rhône、法国、13000
        • 招聘中
        • Clairval's Hospital
    • Finistère
      • Brest、Finistère、法国、29200
        • 招聘中
        • Brest University Hospital
    • Gironde
      • Bordeaux、Gironde、法国、33000
        • 招聘中
        • Bordeaux University Hospital
    • Haute-Garonne
      • Toulouse、Haute-Garonne、法国、31000
        • 招聘中
        • Toulouse University Hospital
    • Haute-Vienne
      • Limoges、Haute-Vienne、法国、87000
        • 招聘中
        • Limoges University Hospital
    • Ille-et-Vilaine
      • Rennes、Ille-et-Vilaine、法国、35000
        • 招聘中
        • Rennes University Hospital
    • Indre-et-Loire
      • Tours、Indre-et-Loire、法国、37000
        • 招聘中
        • Tours University Hospital
    • Loire-Atlantique
      • Nantes、Loire-Atlantique、法国、44000
        • 招聘中
        • Nantes University Hospital
        • 首席研究员:
          • Romain BOURCIER, MD
    • Maine et Loire
      • Angers、Maine et Loire、法国、49000
        • 招聘中
        • Angers University Hospital
    • Marne
      • Reims、Marne、法国、51100
        • 撤销
        • Reims University Hospital
    • Meurthe-et-Moselle
      • Nancy、Meurthe-et-Moselle、法国、54000
        • 招聘中
        • Nancy University Hospital
    • Paris
      • Paris、Paris、法国、75000
        • 招聘中
        • AP-HP La Pitié-Salpêtrière Hospital
      • Paris、Paris、法国、75000
        • 招聘中
        • AP-HP Le Kremlin Bicêtre Hospital
      • Paris、Paris、法国、75000
        • 招聘中
        • Rostchild Foundation Hospital
    • Seine-Maritime
      • Rouen、Seine-Maritime、法国、76000
        • 招聘中
        • Rouen University Hospital
    • Somme
      • Amiens、Somme、法国、80000
        • 招聘中
        • Amiens University Hospital
    • Île-de-France Region
      • Paris、Île-de-France Region、法国、75674
        • 招聘中
        • Ste Anne's Hospital
      • Bern、瑞士、3000
        • 尚未招聘
        • InselHospital Bern
      • Utrecht、荷兰、3500
        • 完全的
        • UMC Utrecht

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

取样方法

概率样本

研究人群

The recruited population is composed of subjects carrying unruptured asymptomatic typical IA of bifurcation for whom a clinical, a biological and an imaging follow-up, without occlusion treatment, was scheduled by local multidisciplinary staff.

描述

Inclusion Criteria :

  • Subject carrying unruptured, asymptomatic and untreated typical IA of bifurcation, measured on conventional imaging (MRI, CTA or DSA) between 3 and 7 mm of larger diameter.
  • Ability to be followed-up during 3 years decided in consensus multidisciplinary gathering.
  • Age > 18 years old.

Exclusion Criteria :

  • A failure to obtain informed consent
  • Contraindications for undergoing an MRI scan include : (heart pacemaker, a metallic foreign body (metal sliver) in their eye, or aneurysm clip in their brain, severe claustrophobia)
  • Contraindications for a gadolinium contrast medium injection (:eGFR below 30 mL/min/1.73 m2, Previous or pre-existing nephrogenic systemic fibrosis, Previous anaphylactic/anaphylactoid reaction to gadolinium containing contrast agent, Acutely deteriorating renal function, Pregnancy and breast-feeding)
  • A mycotic, fusiform-shaped, or dissecting IA, an IA in relation with an arteriovenous malformation
  • A family history of polycystic kidney disease, Ehlers-Danlos syndrome, Marfan's syndrom, fibromuscular dysplasia, or Moya Moya disease
  • Intra-cavernous UIA because the sinus cavernous that is fulfilled with venous blood precluded a reliable assessment of aneurysmal wall enhancement (AWE)

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 观测模型:COHORT
  • 时间观点:PROSPECTIVE

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
The aim is to evaluate in clinical practice the predictive value of UIA wall enhancement for UIA growth. It will allow to set up a secure, efficient and personalized follow-up.
大体时间:5 years

In order to evaluate the informative value of AWE for UIA growth, investigators will consider as primary endpoint the growth of the UIA after the complete follow-up at 3 years.

5 years
Predictive value of UIA wall enhancement for UIA growth
大体时间:at 1 year

This event could occur at any time during the follow-up if an UIA becomes symptomatic but will be systematically assessed by MRI. UIA growth will be assessed blindly and independently by two expert neuroradiologists, routinely involved in UIA management and disagreement will be solved by consensus with involvement of a third expert. UIA wall enhancement status will be defined independently by two different expert neuroradiologists, with > 5yrs experience in intracranial vessel wall imaging. Disagreement will be solved by consensus with involvement of a third expert.

at 1 year
Predictive value of UIA wall enhancement for UIA growth
大体时间:at 3 years

This event could occur at any time during the follow-up if an UIA becomes symptomatic but will be systematically assessed by MRI. UIA growth will be assessed blindly and independently by two expert neuroradiologists, routinely involved in UIA management and disagreement will be solved by consensus with involvement of a third expert. UIA wall enhancement status will be defined independently by two different expert neuroradiologists, with > 5yrs experience in intracranial vessel wall imaging. Disagreement will be solved by consensus with involvement of a third expert.

at 3 years

次要结果测量

结果测量
措施说明
大体时间
Quality of life related to the growth of UIA.
大体时间:5 years

Evaluation of the quality of life (QOL) of untreated patients with UIA during the follow-up.

5 years
AWE variation patterns related to the growth of UIA.
大体时间:5 years

Detection of other AWE variation patterns related to growth during the follow-up in order to improve the follow-up of UIA patients

5 years
Clinical, genetics or biological factors related to the growth of UIA.
大体时间:5 years

Clinical, genetic (blood serum level of circulating ANGPTL6) and biological (plasma factors as circulating ANGPTL6 levels, metalloproteinase…) features recorded.

5 years
Incidence of growth of UIA.
大体时间:5 years

Incidence of growth, stratified by clinical, genetics or biological features.

5 years
Incidence of IA rupture
大体时间:5 years

Incidence of IA rupture, stratified by clinical, genetics or biological features.

5 years
quality of life patients related to the growth of UIA.
大体时间:5 years

Completion of standardized EQ5D questionnaire to measure quality of life patients

5 years
Construction of an automatized tool of AWE pattern
大体时间:5 years

Construction and evaluation of an automatized tool of AWE patterns, as compared to the visual analysis of experts, in the form of a decision-making tool.

5 years

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

调查人员

  • 首席研究员:Romain BOURCIER, MD、Nantes University Hospital

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2019年8月19日

初级完成 (估计的)

2031年3月15日

研究完成 (估计的)

2031年3月15日

研究注册日期

首次提交

2020年9月9日

首先提交符合 QC 标准的

2020年10月1日

首次发布 (实际的)

2020年10月8日

研究记录更新

最后更新发布 (实际的)

2026年9月25日

上次提交的符合 QC 标准的更新

2026年9月22日

最后验证

2026年9月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

未定

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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