NIH-funded research R21 grant

Investigating the effects of delayed blood flow restoration in childhood strokes

Official title: Hemorrhagic transformation associated with delayed reperfusion in perinatal and childhood ischemic stroke: brain maturation-dependent role of leukocytes

Funded at University of California, San Francisco · NIH-10811475 · Data updated 2026-11-12

This study is looking at how waiting too long to restore blood flow after a stroke affects the brains of kids and newborns, and it aims to find the best time to safely remove blood clots to help them recover better.

More Stroke research and trials

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionUniversity of California, San Francisco
NIH-funded
Lab location1 site (San Francisco, United States)
Project startSeptember 22, 2023
Project endAugust 31, 2025
Funding year2023
Award (this year)$444,125
NIH project number1R21NS131837-01A1
Project IDNIH-10811475 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are children and newborns who have experienced an ischemic stroke.

Less likely to help

Patients who have not experienced a stroke or are over the age of 21 may not benefit from this research.

What this research studies

This research explores how delayed restoration of blood flow after a stroke affects the brain in children and newborns. It focuses on understanding the role of immune cells in the brain during this process and aims to determine the safest timing for removing blood clots in pediatric stroke cases. By using experimental models, the study seeks to fill the knowledge gap regarding the optimal timing for treatment to minimize neurological damage. The findings could lead to improved treatment protocols for children suffering from ischemic strokes.

Why it matters

Potential benefit: If successful, this research could lead to better treatment strategies that reduce neurological damage in children who experience strokes.

How similar studies have gone: While there have been successful studies in adult stroke treatment, this research is exploring a relatively novel area in pediatric stroke management.

Where this research is happening

  • University of California, San Francisco
    San Francisco, United States
    Active

Researchers

  • Principal investigator: Vexler, Zinaida S — University of California, San Francisco
  • Study coordinator: Vexler, Zinaida S

Related research

Other NIH-funded projects on the same topics.

  • Improving blood flow after stroke by breaking down NETs

    Aims to see if breaking down neutrophil extracellular traps (NETs) after an ischemic stroke can improve blood flow and reduce brain injury in patients.

    NIH research Icahn School of Medicine at Mount Sinai · New York, United States · NIH-11606640

  • EP2 blockers to protect the brain after a stroke

    Aims to test brain-permeable EP2 antagonists to reduce damage after ischemic stroke and improve recovery.

    NIH research University of Tennessee Health Sci Ctr · Memphis, United States · NIH-11548335

  • Genetic testing to find causes of early-onset ischemic stroke

    This project uses whole-exome sequencing to look for gene changes that may cause ischemic stroke in adults who had a stroke at a young age.

    NIH research Baltimore VA Medical Center · Baltimore, United States · NIH-11510007

  • Targeted nanomedicine to protect the brain after stroke

    A targeted drug-delivery approach aims to boost blood-brain barrier repair and reduce brain damage after an acute ischemic stroke in patients at risk.

    NIH research Temple Univ of the Commonwealth · Philadelphia, United States · NIH-11504265

  • How biological aging and blood proteins relate to thinking after a stroke

    This project looks at whether measures of biological aging and patterns of blood proteins help explain which stroke survivors keep their thinking sharp and which go on to develop vascular dementia.

    NIH research University of Florida · Gainesville, United States · NIH-11470695

  • Repurposing NEXLETOL to treat ischemic stroke

    Aims to see if the cholesterol drug NEXLETOL can help people after an ischemic stroke by supporting brain energy use and reducing injury.

    NIH research Tulane University of Louisiana · New Orleans, United States · NIH-11468414

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
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.