Clinical trial Recruiting at 14 sites Observational Ages 18 and up

Comparing blood-thinning therapies for patients with severe intracranial artery narrowing

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

Run by Yale University · NCT05907629 · Data updated 2026-11-12

This study is testing how well different blood-thinning medications work for stroke patients with severe narrowing of the arteries in the brain, using MRI scans to find out who might not be responding to treatment.

More Stroke trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment300 (estimated)
SponsorYale University
Academic / other
Locations28 sites (Birmingham, Alabama and 27 other locations)
StatusRecruiting
StartedJune 24, 2024
Main results expectedMarch 31, 2029
Study endsMarch 31, 2029
Registry record updatedJuly 16, 2026
Trial IDNCT05907629 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals who have experienced a nondisabling ischemic stroke due to severe intracranial artery narrowing and are enrolled in the CAPTIVA trial.

Probably not a fit

Patients who are unable to undergo MRI or have contraindications to MRI will 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 study, known as CAPTIVA-MRI, is designed to analyze MRI biomarkers in patients with severe intracranial atherosclerotic stenosis (ICAS) who have experienced a stroke. It is an ancillary study to the CAPTIVA trial, which involves randomizing patients to different blood-thinning medications. The primary aim is to identify patients who do not respond to the best medical management through advanced MRI imaging techniques. The findings are expected to inform future ICAS trials and improve patient management strategies.

Why it matters

Potential benefit: If successful, this study could lead to better identification of patients who need alternative treatments for ICAS, potentially reducing the risk of future strokes.

How similar studies have gone: Other studies have shown promise in using MRI biomarkers for similar conditions, but this specific approach is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 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 Criteria:

* 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

Where it's running

  • University of Alabama Hospital
    Birmingham, Alabama, United States
    Recruiting
  • Yale New Haven Hospital
    New Haven, Connecticut, United States
    Recruiting
  • MedStar Washington Hospital Center
    Washington D.C., District of Columbia, United States
    Recruiting
  • Baptist Medical Center Jacksonville
    Jacksonville, Florida, United States
    Recruiting
  • Jackson Memorial Hospital, Miami
    Miami, Florida, United States
    Recruiting
  • University of Illinois Hospital
    Chicago, Illinois, United States
    Recruiting
Show 22 more locations
  • University of Chicago Medical Center
    Chicago, Illinois, United States
    Recruiting
  • Barnes Jewish Hospital
    St Louis, Missouri, United States
    Recruiting
  • Buffalo General Medical Center
    Buffalo, New York, United States
    Recruiting
  • North Shore University Hospita
    Manhasset, New York, United States
    Recruiting
  • University of Cincinnati Medical Center
    Cincinnati, Ohio, United States
    Recruiting
  • UH Cleveland Medical Center
    Cleveland, Ohio, United States
    Recruiting
  • University of Texas Medical Branch
    Galveston, Texas, United States
    Recruiting
  • UVA Medical Center
    Charlottesville, Virginia, United States
    Recruiting
  • University of Colorado Hospital
    Aurora, Colorado, United States
    Not yet recruiting
  • Hartford Hospital
    Hartford, Connecticut, United States
    Not yet recruiting
  • Cleveland Clinic Tradition Hospital
    Port Saint Lucie, Florida, United States
    Not yet recruiting
  • SIH Memorial Hospital of Carbondale
    Carbondale, Illinois, United States
    Not yet recruiting
  • Metro Health Hospital
    Wyoming, Michigan, United States
    Not yet recruiting
  • M Health Fairview University of Minnesota Medical Center
    Minneapolis, Minnesota, United States
    Not yet recruiting
  • NYP Columbia University Medical Center
    New York, New York, United States
    Not yet recruiting
  • Carolinas Medical Center
    Charlotte, North Carolina, United States
    Not yet recruiting
  • Duke University Hospital
    Durham, North Carolina, United States
    Not yet recruiting
  • Cleveland Clinic Akron General
    Akron, Ohio, United States
    Not yet recruiting
  • Mercy St. Vincent Medical Center
    Toledo, Ohio, United States
    Not yet recruiting
  • Prisma Health Richland Hospital
    Columbia, South Carolina, United States
    Not yet recruiting
  • Memorial Hermann Texas Medical Center
    Houston, Texas, United States
    Not yet recruiting
  • Covenant Medical Center
    Lubbock, Texas, United States
    Not yet recruiting

Study contacts

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.