Clinical trial No longer in our active list Observational Ages 35 to 80

Impact of Carotid Artery Stenting on Brain Blood Flow and Cognitive Function

Official title: Effect of Carotid Artery Stent on Evoked Cerebral Blood Oxygenation and Neurocognitive Functioning

Run by Shanghai Jiao Tong University Affiliated Sixth People's Hospital · NCT04651998 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing if a procedure called carotid artery stenting can improve blood flow to the brain and help people with severe artery narrowing think better.

Quick facts

Study typeObservational
Ages35 Years to 80 Years
SexAll
Enrollment74 (estimated)
SponsorShanghai Jiao Tong University Affiliated Sixth People's Hospital
Academic / other
Locations1 site (Shanghai)
Trial IDNCT04651998 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 35-80 with severe carotid artery stenosis who are asymptomatic or have experienced mild strokes.

Probably not a fit

Patients with severe stenosis or occlusion of other major arteries, significant heart issues, or diagnosed dementia 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 study evaluates the effects of carotid artery stenting on cerebral blood oxygenation and neurocognitive function in patients with severe carotid artery stenosis. Patients aged 35-80 with confirmed high-grade stenosis will undergo cognitive assessments and functional near-infrared spectroscopy (fNIRS) before and after the stenting procedure, with follow-up evaluations at six months. The study aims to determine whether revascularization can improve blood flow to the brain and enhance cognitive performance. Cognitive tests such as the Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA) will be utilized to measure changes in cognitive function.

Why it matters

Potential benefit: If successful, this study could lead to improved cognitive functioning in patients with carotid artery stenosis through enhanced cerebral blood flow.

How similar studies have gone: While the approach of using stenting for cognitive improvement is being explored, this specific evaluation of fNIRS in relation to cognitive function post-stenting is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. 35-80 years old
2. Severe carotid stenosis (MRA or CTA confirmed stenosis rate of 70% - 99%, NASCET standard)
3. Asymptomatic or mild stroke (NIHSS ≤ 3) or TIA
4. Agree to participate in the clinical trial and sign the informed consent

Exclusion Criteria:

1. Severe stenosis or occlusion of vertebrobasilar artery and other intracranial arteries (70% - 99%)
2. Left ventricular ejection fraction \< 50% or heart failure
3. Other types of dementia have been diagnosed
4. Severe depression, mental illness, epilepsy
5. Not cooperating with cognitive task evaluation

Where it's running

  • Shanghai 6th People's Hospital
    Shanghai, China
    Recruiting

Study contacts

  • Principal investigator: Yueqi Zhu, PhD — Shanghai Jiao Tong University Affiliated Sixth People's Hospital
  • Study coordinator: Jiangshan Deng, PhD
  • Email: johnson120@126.com
  • Phone: 862164369181

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.