Massive study reveals hidden blood clot dangers in COVID-19 patients

NCT ID NCT04535128

First seen Nov 01, 2025 · Last updated May 14, 2026 · Updated 24 times

Summary

This study tracked 11,000 COVID-19 patients to see how often they developed dangerous blood clots in arteries or veins. Researchers looked at risk factors, treatments, and outcomes over 30 and 90 days. The goal was to better understand and prevent these complications.

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Contacts and locations

Locations

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115, United States

Conditions

Explore the condition pages connected to this study.