Observational MRI Study for Intracranial Atherosclerotic Stenosis (ICAS)

This study is looking at people who have had a stroke caused by a narrowing of blood vessels in the brain (Intracranial Atherosclerotic Stenosis or ICAS). It's an add-on to another study called CAPTIVA, which is comparing different blood thinners like aspirin plus ticagrelor, clopidogrel, or rivaroxaban. This study uses extra MRI scans at the beginning and after 12 months to see if certain markers on the MRI can predict if someone will have another stroke. You could join if you are already in the CAPTIVA trial, had a recent stroke due to 70-99% narrowing of certain brain arteries, and can have an MRI. The goal is to find better ways to identify patients at risk and improve future treatments.

Study design
This is an observational study, meaning researchers will collect information without giving you a specific treatment for this study. It plans to enroll 300 participants.
What's involved
You would have an additional MRI scan at the start of the study and another one 12 months later.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for 12 months to measure the primary outcome.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT05907629

Comparison of Anti-coagulation and Anti-Platelet Therapies for Intracranial Vascular Atherostenosis- Magnetic Resonance Imaging

Recruiting
Not specifiedAges 18+Observational
Yale University
~300 participants
Updated 2026-07-16 on ClinicalTrials.gov
What's tested:MRI

At a glance

Recruiting sites
14 of 28 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Establish ICAS hemodynamic and plaque MRI biomarkers as reliable predictors of recurrent ischemic stroke in the vascular territory of the index stroke.
Measured over 12 months
Stroke
Intracranial Atherosclerotic Stenosis (ICAS)

NCT05907629

Where you'd take part

This study runs at 28 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Baptist Medical Center Jacksonville

    Jacksonville, Floridastudy coordinator listed

    Recruiting

  • Barnes Jewish Hospital

    St Louis, Missouristudy coordinator listed

    Recruiting

  • Buffalo General Medical Center

    Buffalo, New Yorkstudy coordinator listed

    Recruiting

  • Carolinas Medical Center

    Charlotte, North Carolinastudy coordinator listed

    Not yet recruiting

  • Cleveland Clinic Akron General

    Akron, Ohiostudy coordinator listed

    Not yet recruiting

  • Cleveland Clinic Tradition Hospital

    Port Saint Lucie, Floridastudy coordinator listed

    Not yet recruiting

  • Covenant Medical Center

    Lubbock, Texasstudy coordinator listed

    Not yet recruiting

  • Duke University Hospital

    Durham, North Carolinastudy coordinator listed

    Not yet recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • David Liebeskind, MD · PRINCIPAL_INVESTIGATOR · University of California, Los Angeles
  • Sepideh Amin-Hanjani, MD · PRINCIPAL_INVESTIGATOR · University Hospitals
  • Rano Chatterjee, MD · PRINCIPAL_INVESTIGATOR · Washington University School of Medicine
  • Adam de Havenon, MD, MS · PRINCIPAL_INVESTIGATOR · Yale University

Opens a ready-to-send draft in your own email app — review before sending.

Want this trial checked against your situation?

Add a private profile and we'll compare every criterion below against your situation — and tell you which ones are met, uncertain, or excluding.

Check eligibility for this trial ~2 min · HIPAA-protected · delete anytime
Eligibility criteria

Inclusion

Enrollment in the CAPTIVA trial: nondisabling symptomatic ischemic infarct stroke within 30 days secondary to 70-99% stenosis of the intracranial ICA, MCA, BA or VA
Ability to obtain baseline study MRI within 14 days of CAPTIVA enrollmen

Exclusion

Unable or unwilling to undergo MRI, including pacemaker or other MRI contraindications per American College of Radiology guidelines62
Gadolinium contrast allergy or acute or chronic kidney disease with eGFR\<30 ml/min/1.73m2
  • Establish ICAS hemodynamic and plaque MRI biomarkers as reliable predictors of recurrent ischemic stroke in the vascular territory of the index stroke.12 months

    Recurrent ischemic stroke, defined as symptomatic infarct in the vascular territory of the index stroke artery. This outcome is centrally adjudicated in CAPTIVA using an American Heart Association definition of ischemic stroke