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Biological Collection of the Rare Diseases of the Brain and Eye Vessels Cohort - 2

Collection Biologique de la Cohorte Des Maladies Rares Des Vaisseaux du Cerveau et de l'œil - 2

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07650110
Acronym
B-MRVC2
Enrollment
600
Registered
2026-06-16
Start date
2026-06-30
Completion date
2038-06-30
Last updated
2026-06-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

CADASIL, Cavernous Angioma, Cerebral Autosomal Dominant Arteriopathy With Subcortical Infarcts and Leukoencephalopathy, Small Vessel Disease

Keywords

Brain Small Vessel Disease, Cadasil, Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy, Central Nervous System Vascular Malformations, Cavernous Angioma, Central Nervous System

Brief summary

CERVCO is the French National Reference Centre for Rare Cerebrovascular and Retinal Diseases, accredited by the Ministry of Health since 2005. Since 2017, CERVCO has coordinated the MRVC cohort, a prospective cohort of patients with rare vascular diseases of the brain and retina, and established the associated B-MRVC biobank in 2020 to support translational research and biomarker discovery. Due to the rarity and heterogeneity of these disorders, centralized longitudinal collection of clinical data and biological samples is essential to improve understanding of disease mechanisms, identify biomarkers of progression and prognosis, and facilitate the development of new diagnostic and therapeutic approaches. The present study aims to expand this longitudinal biobank, enable national and international collaborative research through controlled sample sharing, and establish reference control samples to support biomarker validation.

Interventions

Additional blood collection

OTHERNeurological evaluation and Biocollection

For healthy volunteers: neurological evaluation, blood and urine sampling

Sponsors

Assistance Publique - Hôpitaux de Paris
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Intervention model description

A single-centre, non-randomised prospective biobanking study, conducted as an ancillary component of the MVCR cohort study

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

For the group of patients with MVCR: * Patients aged between 18 and 80 years at the time of inclusion * Diagnosis confirmed by the detection of a pathogenic mutation in the NOTCH3 gene characteristic of CADASIL, or in another gene responsible for other forms of monogenic cSVD (such as the COL4A1, COL4A2 and HTRA1 genes) or a confirmed diagnosis of MOYA-MOYA (arteriography and/or genetic testing) or cavernoma, cerebral venous thrombosis or a cerebral vascular malformation, including cavernomas * Covered by social security or an equivalent scheme * Written consent. * Patient included in the MVCR cohort For control group * Subject aged between 18 and 80 at the time of inclusion. * Written consent. * Blood pressure \< 140/90 mmHg without treatment or \< 130/80 mmHg if treated and stable for ≥3 months * Covered by social security or a similar scheme * Strictly normal neurological examination (NIHSS=0; no focal deficit) * Normal cognitive examination: MMSE ≥ 26

Exclusion criteria

: Common

Design outcomes

Primary

MeasureTime frameDescription
Comparative analysis of proteinsAt inclusionComparative analysis of proteins and candidate biomarkers in serum or plasma between patients with a rare brain disorder and control subjects

Secondary

MeasureTime frameDescription
Measurement of proteins and biomarkersUp to 5 years
Occurrence of a significant event indicating disease progressionUp to 5 yearsStroke, cognitive decline, progressive markers in brain or retinal imaging
Inter-method variability of assays assessed by measures of agreement between techniquesUp to 5 years
Protein/biomarker assays according to the different conditions involvedUp to 5 years
Protein/biomarker assays according to sex and ageUp to 5 years

Contacts

CONTACTHugues Chabriat, MD PhD
hugues.chabriat@aphp.fr+33 1 49 95 25 93
CONTACTJérôme Lambert
jerome.lambert@u-paris.fr+33 1 42 49 97 42

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 17, 2026