NCT04825080

Brief Summary

There is debate on the natural history of asymptomatic severe carotid artery stenosis. Previous studies conducted more than 20 years ago revealed the benefit of carotid endarterectomy compared with medical therapy only on the stroke prevention. However, today it seems that the current medical regimen can reduce the cerebral ischemic event rate in patients with asymptomatic severe carotid artery stenosis to less than 1% per year, making it questionable to choose the surgical treatment.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2019

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2021

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 26, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

April 1, 2021

Completed
3.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2025

Completed
Last Updated

April 1, 2021

Status Verified

March 1, 2021

Enrollment Period

2 years

First QC Date

March 26, 2021

Last Update Submit

March 30, 2021

Conditions

Outcome Measures

Primary Outcomes (2)

  • Cerebral ischemic events

    Stroke and transient cerebral ischemic events or amaurosis fugax, evaluated by clinical neurologist by clinical examination (National Institutes of Health Stroke Scale, NIHSS or modified Rankin scale, mRS)

    5 years

  • Ipsilateral cerebral ischemic events

    Ipsilateral stroke and transient cerebral ischemic events or amaurosis fugax, evaluated by clinical neurologist by clinical examination (National Institutes of Health Stroke Scale, NIHSS or modified Rankin scale, mRS)

    5 years

Secondary Outcomes (3)

  • Plaque progression

    5 years

  • Patient's adherence to the medical therapy

    5 years

  • Survival

    5 years

Interventions

Identification of carotid artery stenosis \> 60% NASCET criteria

Eligibility Criteria

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

Patients are prospectively identified and enrolled in a single center vascular surgery ambulatory and a duplex ultrasonography (DUS) laboratory. Carotid artery stenosis are identified and the degree of stenosis \>60% is evaluated according to the current guidelines for stenosis identification through blood flow velocities. Patients enrollment goes from January 2019 to March 2020. The investigators prospectively complete the dedicated database including clinical characteristics, cardiovascular risk factors, medical therapy in use, features of the carotid plaque and contralateral carotid status.

You may qualify if:

  • \- asymptomatic carotid artery stenosis (according to the ESVS guidelines) \>60% (NASCET criteria) with a physical examination and a DUS at the S. Orsola Malpighi hospital from 2019 to 2025.

You may not qualify if:

  • Patients submitted to carotid revascularization will be included until the revascularization.
  • Patients who underwent a transient ischemic attach or a stroke within the 6-months before the enrollment are excluded from the study
  • Restenosis
  • Carotid total occlusion

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Policlinico S. Orsola Malpighi

Bologna, 40138, Italy

Location

MeSH Terms

Interventions

Ultrasonography, Doppler, DuplexComputed Tomography Angiography

Intervention Hierarchy (Ancestors)

Ultrasonography, DopplerUltrasonographyDiagnostic ImagingDiagnostic Techniques and ProceduresDiagnosisTomography, X-Ray ComputedImage Interpretation, Computer-AssistedMultimodal ImagingRadiographic Image EnhancementImage EnhancementPhotographyRadiographyTomography, X-RayTomography

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, PhD

Study Record Dates

First Submitted

March 26, 2021

First Posted

April 1, 2021

Study Start

January 1, 2019

Primary Completion

January 1, 2021

Study Completion

January 1, 2025

Last Updated

April 1, 2021

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will not share

Locations