Anti-Inflammatory shot near veins may stop blood clots from coming back

NCT ID NCT04858776

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

Summary

This Phase 2 trial tests whether delivering the anti-inflammatory drug dexamethasone directly around deep veins can prevent blood clots from returning after they are removed. The study involves 60 adults aged 18-89 who have had DVT symptoms for 14-60 days. Participants receive either dexamethasone or a saline placebo via a special catheter, and are followed for up to 24 months to check for re-clotting and symptom improvement.

What this could mean

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

Active substance

dexamethasone

What this could lead to

If it works, this could offer a way to prevent blood clots from returning after treatment for deep vein thrombosis, reducing long-term complications.

What could go wrong

This is a small, early-phase trial with only 60 participants, so results may not apply to everyone. The procedure involves risks like bleeding or infection, and the drug may not prevent re-thrombosis as hoped.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

thrombotic disease

As listed by the trial registrant

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

Contacts and locations

Locations

  • CIS Clinical Research

    Houma, Louisiana, 70360, United States

  • CardioVoyage

    Denison, Texas, 75020, United States

  • Galway University Hospital

    Galway, H91 YR71, Ireland

  • Guy's and St. Thomas Hospital

    London, SE1 7EH, United Kingdom

  • Lake Washington Vascular

    Bellevue, Washington, 98004, United States

  • Medstar Health Research Institute

    Hyattsville, Maryland, 20782, United States

  • NC Heart and Vascular Research

    Raleigh, North Carolina, 27607, United States

  • Northwestern University Hospital

    Chicago, Illinois, 60611, United States

  • OhioHealth Research Institute

    Columbus, Ohio, 43214, United States

  • Sentara Norfolk General Hospital

    Norfolk, Virginia, 23452, United States

  • St John Health System

    Bartlesville, Oklahoma, 74006, United States

  • Stony Brook University Hospital

    Stony Brook, New York, 11794, United States

  • University of South Florida

    Tampa, Florida, 33060, United States

  • University of Texas, Houston

    Houston, Texas, 77494, United States

  • Vascular Care Connecticut

    Darien, Connecticut, 06820, United States