Understanding Cognitive Decline After Ischemic Stroke

This observational study aims to understand why some people experience memory and thinking problems (cognitive decline) after an ischemic stroke. Researchers are investigating if a "leaky" blood-brain barrier (a protective layer around the brain) at the time of stroke is linked to a higher risk of cognitive decline over the next three years. You may be able to join if you've had an acute ischemic stroke confirmed by an MRI scan that included special imaging (perfusion imaging with an exogenous contrast agent). The study will be successful if it shows a clear connection between blood-brain barrier disruption and cognitive decline. The current recruitment status is unclear.

Study design
This is an observational study planning to enroll 150 participants. It is not testing a specific treatment.
What's involved
Assessments will occur every 6 months for 3 years, which will include telephone-based cognitive assessments.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for 3 years after the stroke.

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NCT05556395

Global Blood-Brain Barrier Disruption and Post-Stroke Cognitive Decline

Recruiting
Not specifiedAges 18+Observational
Johns Hopkins University
~150 participants
Updated 2025-09-29 on ClinicalTrials.gov

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Change in Cognition (Cognitive Decline)
Measured over Assessments occur every 6 months for 3 years
Ischemic Stroke
1 sites across 1 states
Maryland1
  • Richard Leigh, MD · PRINCIPAL_INVESTIGATOR · Johns Hopkins University

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Eligibility criteria

Inclusion

Acute ischemic stroke demonstrated on an MRI scan that includes perfusion imaging with an exogenous contrast agent

Exclusion

Inability to perform telephone-based cognitive assessments
  • Change in Cognition (Cognitive Decline)Assessments occur every 6 months for 3 years

    Serial telephone-based cognitive assessments will be performed to detect cognitive changes (cognitive decline).