New antibody could reduce bleeding after stroke

NCT ID NCT05948566

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a new drug called TS23, an antibody that may help people recover from ischemic strokes by lowering the chance of bleeding in the brain. The trial involves 300 adults who have had a stroke and will receive either the drug or a placebo. Researchers will check for bleeding and measure stroke severity to see if the drug is safe and effective.

What this could mean

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

Active substance
TS23 (monoclonal antibody)
What this could lead to
If successful, this could lead to a new treatment that helps people recover better from ischemic strokes by reducing the risk of bleeding in the brain.
What could go wrong
This is an early Phase 2 trial, so the drug may not prove safe or effective. There is also a risk that the antibody could cause bleeding or other side effects.

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

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

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  • Contact

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Locations

  • Ascension Columbia St. Mary's Hospital

    RECRUITING

    Milwaukee, Wisconsin, 53211, United States

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  • Ascension St. John

    RECRUITING

    Tulsa, Oklahoma, 74104, United States

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  • Banner University Medical Center

    RECRUITING

    Phoenix, Arizona, 85006, United States

    Contact Email: •••••@•••••

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  • Banner University Medical Center - Tucson

    NOT_YET_RECRUITING

    Tucson, Arizona, 85719, United States

    Contact Email: •••••@•••••

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  • Baptist Healthcare System, Inc.

    RECRUITING

    Lexington, Kentucky, 40503, United States

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  • Barnes Jewish Hospital

    RECRUITING

    St Louis, Missouri, 63110, United States

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  • Brigham and Women's Hospital

    RECRUITING

    Boston, Massachusetts, 02115, United States

    Contact Email: •••••@•••••

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  • Buffalo General Medical Center

    WITHDRAWN

    Buffalo, New York, 14203, United States

  • Christiana Hospital

    RECRUITING

    Newark, Delaware, 19718, United States

    Contact Email: •••••@•••••

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  • Duke University Hospital

    RECRUITING

    Durham, North Carolina, 27710, United States

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  • Grady Memorial Hospital

    RECRUITING

    Atlanta, Georgia, 30303, United States

    Contact Email: •••••@•••••

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  • Harborview Medical Center

    RECRUITING

    Seattle, Washington, 98104, United States

    Contact Email: •••••@•••••

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  • Hartford Hospital

    RECRUITING

    Hartford, Connecticut, 06102, United States

    Contact Email: •••••@•••••

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  • JFK Medical Center

    RECRUITING

    Edison, New Jersey, 08837, United States

    Contact Email: •••••@•••••

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  • Jackson Memorial Hospital

    RECRUITING

    Miami, Florida, 33136, United States

    Contact Email: •••••@•••••

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  • Kaiser Permanente Los Angeles

    RECRUITING

    Los Angeles, California, 90027, United States

    Contact Email: •••••@•••••

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  • M Health Fairview Ridges Hospital

    RECRUITING

    Burnsville, Minnesota, 55337, United States

    Contact Email: •••••@•••••

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  • M Health Fairview Southdale Hospital

    RECRUITING

    Edina, Minnesota, 55435, United States

    Contact Email: •••••@•••••

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    Contact Email: •••••@•••••

  • M Health Fairview University of Minnesota Medical Center

    RECRUITING

    Minneapolis, Minnesota, 55455, United States

    Contact Email: •••••@•••••

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  • Massachusetts General Hospital

    RECRUITING

    Boston, Massachusetts, 02171, United States

    Contact Email: •••••@•••••

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  • Mayo Clinic Phoenix

    WITHDRAWN

    Phoenix, Arizona, 85054, United States

  • Medical University of South Carolina University Hospital

    RECRUITING

    Charleston, South Carolina, 32608, United States

    Contact Email: •••••@•••••

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  • Memorial Hermann Texas Medical Center

    RECRUITING

    Houston, Texas, 77030, United States

    Contact Email: •••••@•••••

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  • Methodist University Hospital

    RECRUITING

    Memphis, Tennessee, 38104, United States

    Contact Email: •••••@•••••

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  • Mount Sinai West

    RECRUITING

    New York, New York, 10029, United States

    Contact Email: •••••@•••••

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  • NYP Columbia University Medical Center

    RECRUITING

    New York, New York, 10032, United States

    Contact Email: •••••@•••••

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  • NYU Langone Health

    RECRUITING

    Brooklyn, New York, 11220, United States

    Contact Email: •••••@•••••

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  • North Shore University Hospital

    RECRUITING

    Manhasset, New York, 11030, United States

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  • OSU Wexner Medical Center

    RECRUITING

    Columbus, Ohio, 43210, United States

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  • Prisma Health Greenville Memorial

    RECRUITING

    Greenville, South Carolina, 29605, United States

    Contact Email: •••••@•••••

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  • Providence St. Vincent Medical Center

    RECRUITING

    Portland, Oregon, 97225, United States

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  • Rhode Island Hospital

    RECRUITING

    Providence, Rhode Island, 02903, United States

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  • SUNY Upstate Medical University

    RECRUITING

    Syracuse, New York, 13202, United States

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  • Saint Luke's Hospital of Bethlehem Pennsylvania

    RECRUITING

    Bethlehem, Pennsylvania, 18015, United States

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  • Sutter Medical Center

    WITHDRAWN

    Sacramento, California, 95816, United States

  • Temple University Hospital

    RECRUITING

    Philadelphia, Pennsylvania, 19140, United States

    Contact Email: •••••@•••••

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  • The Mount Sinai Hospital

    RECRUITING

    New York, New York, 10029, United States

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  • UCSD Health La Jolla

    RECRUITING

    La Jolla, California, 92093, United States

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  • UCSD Medical Center- Hillcrest Hospital

    RECRUITING

    San Diego, California, 92103, United States

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  • UF Health Shands Hospital

    TERMINATED

    Gainesville, Florida, 32608, United States

  • UVA Medical Center

    RECRUITING

    Charlottesville, Virginia, 22901, United States

    Contact Email: •••••@•••••

    Contact

  • United Hospital

    WITHDRAWN

    Saint Paul, Minnesota, 55102, United States

  • University of Alabama Hospital

    RECRUITING

    Birmingham, Alabama, 35233, United States

    Contact Email: •••••@•••••

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  • University of Chicago Medical Center

    RECRUITING

    Chicago, Illinois, 60637, United States

    Contact Email: •••••@•••••

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  • University of Cincinnati Medical Center

    RECRUITING

    Cincinnati, Ohio, 45267, United States

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  • University of Iowa Hospitals & Clinics

    WITHDRAWN

    Iowa City, Iowa, 52242, United States

  • University of Louisville Hospital

    RECRUITING

    Louisville, Kentucky, 40202, United States

    Contact Email: •••••@•••••

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  • University of Utah Healthcare

    WITHDRAWN

    Salt Lake City, Utah, 84132, United States

  • VCU Medical Center

    WITHDRAWN

    Richmond, Virginia, 23298, United States

  • Wake Forest Baptist Medical Center

    TERMINATED

    Winston-Salem, North Carolina, 27157, United States

  • Westchester Medical Center

    NOT_YET_RECRUITING

    Valhalla, New York, 10595, United States

    Contact Email: •••••@•••••

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  • Yale New Haven Hospital

    RECRUITING

    New Haven, Connecticut, 06511, United States

    Contact Email: •••••@•••••

    Contact

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