ClinicalTrials.gg
Status unknownNCT04431609CAROWEBUpdated Oct 6, 2023

Carotid Web Associated With Cerebral Infarctions

An observational study in Carotid Arteries, sponsored by University Hospital, Bordeaux. Status unknown at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-10-06.

Sponsored by University Hospital, Bordeaux · Observational

The sponsor has not verified this record recently (last verified Oct 2023), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
300
Ages
18 Years and older
Sex
All
01

Study summary

Carotid Web located at the bulb level is a rare condition and is often associated with severe cerebral infarction in the carotid territory. This condition has been described predominantly in the black population. However, limited data are available for the epidemiology of carotid web and often result from selected population studies. It has been shown that the carotid web is a focal intimal dysplasia. Rate of ischemic stroke recurrence is high, even in patients treated with antiplatelet therapy. This subtle lesion is often unknown and misdiagnosed including in stroke unit. We assume that the implementation of a multicentric cohort would allow a comprehensive analysis of the carotid web condition.

Read the detailed description

Carotid web lesions associated with cerebral infarctions are a relatively rare and largely unknown disease. However, carotid web lesions are associated with severe infarction involving the functional and vital prognosis of patients. The high rate of recurrence should lead to an identification of the lesion at the first event in order to propose a suitable preventive treatment. We believe that only a multicenter cohort will be able to analyze the characteristics of the pathology and propose studies on critical size samples. A national cohort would lead quickly to a consequent collection of cases. By including overseas departments and communities, notions of prevalence and characteristics within different populations could finally be studied. Participation to the cohort constitution will probably lead to sensitizing the various actors of the course of stroke care to the diagnosis and appropriate care of the carotid web.

Patients will be selected by the Stroke Units which take part in the cohort constitution. Stroke Unit investigator will fill the WEPI online entry database. Clinical, imaging and outcome characteristics will be informed.

In order to guarantee the quality of the cases collected, the validation of the carotid web lesion will be carried out by a pair of expert Neurologist - Neuroradiologist appointed within an expert committee. In case of no consensus, a third expert will resolve the disagreement.

02

Conditions studied

  • Carotid Arteries

Browse trials for

Keywords

  • Carotid Web
  • Cerebral Infarction
  • Cohort
03

In context

Cerebral Infarction

817 studies on the registry are indexed under Cerebral Infarction; 182 are open to participants now.

This study's planned enrollment of 300 is above the median of 250 across 256 observational studies indexed under Cerebral Infarction.

Browse Cerebral Infarction studies →

Lead sponsor

University Hospital, Bordeaux is the lead sponsor of 803 studies on the registry; 194 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Patients over 18 years of age, with imagery available by Angioscanner, Angio-MRI, or arteriography and revealing the presence of a carotid web, with a cerebral infarction or transient ischemic attack in the carotid territory downstream of a lesion of carotid web viewed on a brain MRI.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥18 years
  • Available imaging revealing the presence of a carotid web
  • Cerebral infarction or transient ischemic attack in the carotid area downstream of a carotid web lesion.
  • Validation of the carotid web by a pair of experts Neurologist and Neuroradiologist
  • Agreement of the patient or the support person given after reading the information and non-opposition form

Exclusion criteria

Exclusion Criteria:

  • Age \<18 years
  • Patient expressing opposition to be enrolled in the CAROWEB cohort
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
300 participants (estimated)
Target follow-up
3 Years
Patient registry
Yes

Groups and cohorts

  • CAROtid WEB associated with cerebral infarction

    french multicentric cohort that collects retrospectively and prospectively purely observational data on patients with cerebral infarction associated with a carotid web. Diagnostic, therapeutic or follow-up strategies will be at the discretion of the Stroke Unit taking care of the patient.

06

What researchers measure

Primary outcomes

  1. Number of patients included and validated by the expert committee at the end of the inclusion period

    The missing data concerning clinical data, therapy used and functional prognosis between 3 and 6 months should be \<10%. Each item entered in the eCRF can be answered. The lack of response will be considered as missing data in the patient's file.

    Time frame: At 3 years

Secondary outcomes

  1. Demographics collected at the inclusion

    Age, Sex, Ethnic group based on self-determination

    Time frame: at the inclusion

  2. NIHSS score at the admission in the neurological unit

    NIHSS scale (National Institute of Health Stroke Score) was described by T. Brott, in 1989, for used to assess patients with acute ischemic stroke. It can be used in carotid and vertebrobasilar ischemic attacks. The passing time of the scale is 6 minutes 30 on average. The NIHSS Score ranges from 0 to 42. A higher score indicates a worse clinical status.

    Time frame: at the inclusion

  3. Radiological of the cerebral infarction collected at the inclusion

    localization and extent of the infarction on the cerebral MRI and Radiological of the carotid Web: Uni or bilaterality,

    Time frame: Web measurements carried out by 2 experts one month after the inclusion

  4. Radiological of the cerebral infarction collected one month after the inclusion

    localization and extent of the infarction on the cerebral MRI and Radiological of the carotid Web: Uni or bilaterality,

    Time frame: Web measurements carried out by 2 experts one month after the inclusion

  5. Management of the cerebral infarction in emergency (within 48 hours from stroke onset): Thrombolysis, Thrombectomy, Decompressive hemicraniectomy, Antiplatelet or Anticoagulant treatment

    Number of patients treated with: 1) Thrombolysis, 2) Mechanical Thrombectomy, 3) Decompressive hemicraniectomy, 4) Antiplatelet treatment, 5) Anticoagulant treatment

    Time frame: at the inclusion

  6. Secondary preventive strategies applied between 2 and 90 days after stroke onset:- Number of patients treated -

    \- Number of patients treated with: 1) Antiplatelet treatment alone, 2) Anticoagulant treatment alone, 3) Endarterectomy and excision of the Web, 4) Carotid artery stenting

    Time frame: at 3-month

  7. Secondary preventive strategies applied between 2 and 90 days after stroke onset:- Percentage of intracerebral hemorrhage and major systemic bleeding in patients treated -

    \- Percentage of intracerebral hemorrhage and major systemic bleeding in patients treated with: 1) Antiplatelet treatment alone, 2) Anticoagulant treatment alone, 3) Endarterectomy and excision of the Web, 4) Carotid artery stenting * Intracerebral hemorrhage has to be proven by a brain CT Scan or MRI. * Major systemic bleeding is defined according to Schulman et al., Journal of thrombosis and haemostasis, 2005.

    Time frame: at 3-month

  8. Stroke Outcome assessed with the Modified Rankin Scale score.

    The Modified Rankin Scale (MRS) is a single item overall outcome assessment scale for post-stroke patients. It is used to categorize the level of functional independence based on pre-stroke activities rather than on observing performance while performing a specific task. A higher score (range from 0 to 6) indicates a poorer outcome.

    Time frame: Between 3 to 6 months

  9. Incidence rates and delays of cerebrovascular events recurrence such as cerebral infarction or transient ischemic attack

    Time frame: From inclusion to the end of follow-up: 3 to 6 years

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • Poirette P, Chausson N, Papaxanthos J, Kyheng M, Labreuche J, Smadja D, Gaillard N, Signate A, Joux J, Obadia M, Renou P, Boyer A, Desilles JP, Boulanger M, Robinet-Borgomano E, Zhu F, Richard S, Turpinat C, Landais A, Desal H, Guillon B, Viguier A, Lamy M, Denier C, Lecluse A, Malrain C, Lyoubi A, Holay Q, Bourgeois Q, Chaari D, Olindo S, Marnat G; CAROWEB Investigators. Delay in Carotid Web Diagnosis Remains Common and Associated With an Increased Risk of Stroke Recurrence. Stroke. 2025 Aug;56(8):2091-2100. doi: 10.1161/STROKEAHA.124.050238. Epub 2025 May 12. PubMed 40351183 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 6, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04431609
Responsible party
Sponsor
First posted
Jun 16, 2020
Start date
Jun 19, 2019
Primary completion
Jun 30, 2026 (estimated)
Completion
Jun 30, 2026 (estimated)
Last update
Oct 6, 2023

Study contacts

Stéphane OLINDO, M.D
Contact
stephane.olindo@chu-bordeaux.fr
05 57 82 12 63
Aurore CAPELLI, PhD
Contact
aurore.capelli@chu-bordeaux.fr
05 57 82 08 77

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion