Clinical trial Recruiting at 2 sites Observational Ages 18 to 80

Treatment options for patients with non-acute carotid artery occlusion

Official title: Revascularization for Symptomatic Non-acute Carotid Artery Occlusion

Run by Xuanwu Hospital, Beijing · NCT06303414 · Data updated 2026-11-12

This study is testing three different surgical treatments for patients with blocked carotid arteries to see which one works best and is safest for those who have had symptoms for at least a day.

Quick facts

Study typeObservational
Ages18 Years to 80 Years
SexAll
Enrollment1000 (estimated)
SponsorXuanwu Hospital, Beijing
Academic / other
Locations2 sites (Beijing, Beijing Municipality and 1 other locations)
StatusRecruiting
StartedJune 17, 2016
Main results expectedDecember 30, 2028
Study endsDecember 30, 2028
Registry record updatedMarch 12, 2024
Trial IDNCT06303414 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults over 18 years old with symptomatic non-acute carotid artery occlusion confirmed by imaging.

Probably not a fit

Patients with recent unstable cardiac conditions or other significant comorbidities may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational cohort study aims to evaluate the success rate, efficacy, and safety of recanalization treatments for non-acute carotid artery occlusion. It will compare three different surgical approaches: Carotid Endarterectomy (CEA), Carotid Artery Stenting (CAS), and hybrid surgery. The study focuses on patients who have experienced ischemic symptoms and have confirmed occlusion for at least 24 hours. By analyzing outcomes from these interventions, the study seeks to provide insights into the best treatment options for this condition.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients with non-acute carotid artery occlusion, potentially reducing the risk of stroke recurrence.

How similar studies have gone: Previous studies have shown promise for recanalization treatments, but this study aims to provide more definitive evidence through a larger sample size.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Older than 18 years old;
2. Sign the informed consent form;
3. Carotid occlusion at least 24h;
4. Patients with clinical localization symptoms: ipsilateral hemisphere ischemia symptoms or ipsilateral eye ischemia symptoms or cognition impairment, with or without anterior circulation blood supply area infarction;
5. DSA confirmed common carotid artery or internal carotid artery (mTICI=0) occlusion;
6. Perfusion imaging confirms the presence of hypoperfusion in the corresponding area(CBF decrease);
7. The optimal medical treatment for patients who still have ischemic symptoms;
8. Routine DWI and ADC sequence examinations are performed before surgery no new infarction;

Exclusion Criteria:

1. Intracranial arteriovenous malformation or aneurysm;
2. Unstable angina, myocardial infarction (MI), or congestive heart failure in the last 6 months;
3. Uncontrolled diabetes mellitus defined as glucose \> 300 mg/dL (16.67 mmol/L);
4. Patient is expected to have the ADP antagonist therapy interruption within 3 months after the procedure;
5. Pregnant or in the perinatal period;
6. Severe concomitant disease with poor prognosis (life expectancy \< 3 years);
7. Intolerance or allergies to any of the study medications, such as aspirin or clopidogrel;
8. Allergy to iodine or radiographic contrast media;
9. Concomitant vascular conditions precluding endovascular;
10. Patients with large cerebral infarction within 2 weeks;
11. History of ipsilateral vocal cord paralysis;
12. Those with severe skin diseases who are expected to have difficulty healing the incision;
13. Poor functional status before onset (mRS score 4-5 points).
14. The area of infarction in the occluded vascular area exceeds half of the vascular supply area;
15. Already have dementia or psychiatric illness and are unable to complete neurological and cognitive assessments.
16. Any condition that in the surgeon's judgment suggests the patient an unsuitable surgical candidate.

Where it's running

  • Xuanwu Hospital, Capital Medical University
    Beijing, Beijing Municipality, China
    Recruiting
  • Xuanwu Hospital, Capital Medical University.
    Beijing, China
    Recruiting

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.