Massive study tracks 3,400 patients to unlock clot recurrence secrets
NCT ID NCT04297085
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study follows 3,400 people who have had a blood clot (venous thromboembolism) to see how often clots return and what raises the risk. It focuses on two groups: patients under 50, and cancer patients of any age. Researchers will track recurrences over 1 to 5 years and also monitor bleeding, deaths, and other complications. The goal is to improve prevention strategies for those at highest risk.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If successful, this could help doctors better predict and prevent blood clot recurrence in younger patients and those with cancer.
- What could go wrong
- This is an observational study, not a treatment trial. It may not lead to immediate changes in care, and results depend on accurate follow-up over years.
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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
Locations
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CH Morlaix
RECRUITINGMorlaix, 29672, France
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CH de Cornouaille
RECRUITINGQuimper, 29107, France
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CHRU Brest
RECRUITINGBrest, 29200, France
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HIA Clermont Tonnerre Brest
RECRUITINGBrest, 29200, France