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Ubrudt cerebral aneurisme: forudsigelse af evolution (U-CAN)

22. september 2026 opdateret af: 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.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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).

Undersøgelsestype

Observationel

Tilmelding (Anslået)

1000

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

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

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

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.

Beskrivelse

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)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
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.
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Quality of life related to the growth of UIA.
Tidsramme: 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.
Tidsramme: 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.
Tidsramme: 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.
Tidsramme: 5 years

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

5 years
Incidence of IA rupture
Tidsramme: 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.
Tidsramme: 5 years

Completion of standardized EQ5D questionnaire to measure quality of life patients

5 years
Construction of an automatized tool of AWE pattern
Tidsramme: 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

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Romain BOURCIER, MD, Nantes University Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

19. august 2019

Primær færdiggørelse (Anslået)

15. marts 2031

Studieafslutning (Anslået)

15. marts 2031

Datoer for studieregistrering

Først indsendt

9. september 2020

Først indsendt, der opfyldte QC-kriterier

1. oktober 2020

Først opslået (Faktiske)

8. oktober 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

25. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • RC20_0012

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

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