NCT04971564

Brief Summary

The goal of this trial is to study, in three well-defined clinical situations responsible for cerebral hypoxia, the concentrations of biomarkers of thrombo-inflammation compared to a population of patients without cerebral hypoxia, and to study in patients with cerebral hypoxia the association between these concentrations and the clinical evolution.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
2mo left

Started Mar 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress95%
Mar 2024Jun 2026

First Submitted

Initial submission to the registry

July 12, 2021

Completed
9 days until next milestone

First Posted

Study publicly available on registry

July 21, 2021

Completed
2.7 years until next milestone

Study Start

First participant enrolled

March 19, 2024

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 22, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 22, 2026

Last Updated

January 22, 2026

Status Verified

January 1, 2026

Enrollment Period

2.3 years

First QC Date

July 12, 2021

Last Update Submit

January 21, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Biomarker rates at day 0

    Biomarker: Neutro-Plaket aggregates, extra-cellular DNA networks, von Willebrand Factor

    24 hours

Study Arms (2)

Case

Patients with cerebral hypoxia victims of ischaemic stroke, acute parenchymal haemorrhage or subarachnoid haemorrhage

Other: Blood sampling

Control

Patients without cerebral hypoxia

Other: Blood sampling

Interventions

Blood sampling will be made to Day 0, Day 3 and to 3 month after inclusion

CaseControl

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients treated at the Rothschild Foundation Hospital within the first 24 hours of an acute neurological symptomatology

You may qualify if:

  • \- For cases, admitted within the first 36 hours of an acute neurological symptom related to :
  • An ischaemic cerebrovascular accident (iCVA) eligible for a mechanical thrombectomy procedure,
  • A subarachnoid haemorrhage (SAH, all aetiologies) : patient presenting with at least a modified Fisher scale 3 or 4,
  • An intra-parenchymal haematoma (IPH) with greatest axis ≥ 20mm or with NIHSS on admission \>4.
  • For control patients, admitted within 7 days of the onset of acute neurological symptomatology related to a clinical diagnosis of transient ischaemic attack (TIA) - based on thorough questioning of the patient on admission - and prior to imaging, with an ABCD2≥ 2 score.
  • Express consent to participate in the study.
  • Member or beneficiary of a social security.

You may not qualify if:

  • Pre-existing functional and/or cognitive disability
  • Patient under legal protection.
  • Pregnant or breastfeeding woman.
  • Patient with secondary haemorrhagic transformation.
  • Patients with an ischaemic lesion visible on imaging, unrelated to large vessel occlusion and therefore ineligible for mechanical thrombectomy.
  • Patients diagnosed with an acute non-vascular neurological pathology (migraine, epilepsy, etc.).
  • TIA patients presenting an abnormality on follow-up imaging 24-48 hours after the initial imaging.
  • Excluded patients will be replaced.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hôpital Fondation Adolphe de Rothschild

Paris, Île-de-France Region, 75010, France

RECRUITING

MeSH Terms

Conditions

Hypoxia, BrainIschemic Stroke

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System DiseasesHypoxiaSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsStrokeCerebrovascular DisordersVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Central Study Contacts

François DELVOYE

CONTACT

Amélie Yavchitz

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
NETWORK
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 12, 2021

First Posted

July 21, 2021

Study Start

March 19, 2024

Primary Completion (Estimated)

June 22, 2026

Study Completion (Estimated)

June 22, 2026

Last Updated

January 22, 2026

Record last verified: 2026-01

Locations