Carotid Asymptomatic Stenosis
CARAS
Natural History of Asymptomatic Carotid Artery Stenosis in the Modern Era
1 other identifier
observational
300
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jan 2019
Longer than P75 for all trials
1 active site
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 Start
First participant enrolled
January 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2021
CompletedFirst Submitted
Initial submission to the registry
March 26, 2021
CompletedFirst Posted
Study publicly available on registry
April 1, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2025
CompletedApril 1, 2021
March 1, 2021
2 years
March 26, 2021
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
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
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
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