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3D scans reveal hidden changes in Stroke-Linked brain plaques

NCT ID NCT03295773

Knowledge-focused Sponsor: Chinese University of Hong Kong Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study uses advanced 3D-rotational angiography to track how fatty plaques in brain arteries change over one year in 140 people who have had a stroke or mini-stroke. Participants will have two scans 12 months apart while managing heart risk factors. The goal is to understand plaque growth and remodeling, which may improve future stroke prevention strategies.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could help doctors better predict stroke risk and tailor treatments for people with narrowed brain arteries.
What could go wrong
This is an observational study, not a treatment trial. It only looks at images over time, so it won't directly improve health or provide new therapies.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 140 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2016

Expected to finish

Jun 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients who have acute cerebral ischemic symptoms attributed to a high-grade (≥60%) stenosis at a middle cerebral artery or intracranial segment of an internal carotid artery (ICA) would be reviewed by neurologists. If their stroke etiology and relevance to ICAD based on clinical syndrome, vascular imaging features and concurrent cardiovascular risks are eligible, they would be invited to join the study.

Ages

18 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patient is 30 to 85 years of age, inclusive. 2. Patients who have an acute infarct in diffusion-weighted MRI compatible with artery-to-artery thrombo-embolism and a relevant intracranial atherosclerotic stenosis ≥60%. 3. Patient who has no contra-indication for the proposed imaging tests. 4. Patient understands the purpose and requirements of the study, and has provided an informed consent. Exclusion Criteria: Patient with any of the following conditions would be excluded: 1. Stroke etiology uncertain or unrelated to intracranial atherosclerosis, such as cardioembolism, Moyamoya disease, small vessel disease or primary angiitis of CNS. 2. A tandem stenosis \>50% at extra-cranial internal carotid artery. 3. Bleeding propensity: active peptic ulcer disease, major systemic hemorrhage within 30 days, thrombocytopenia (platelets \<100 x 109/L), coagulopathy (INR \>1.5). 4. A medical condition that would not allow the patient to adhere to the protocol or complete the study.

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Conditions

The condition(s) this trial relates to.

atherosclerosis cerebral atherosclerosis intracranial arteriosclerosis ischemic stroke

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Atheroscleroses, cerebral Ischemic stroke

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Chinese University of Hong Kong

    RECRUITING

    Hong Kong, Hong Kong

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