Could your family history predict Hormone-Related blood clots?
NCT ID NCT03206372
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is looking at whether women who have had a blood clot while using hormones (like birth control pills or during pregnancy) have family members who are also more likely to have had a clot. Researchers will compare the family history of these women with that of women who used hormones but never had a clot. The goal is to see if family history is a better way to predict risk than current blood tests. No new treatments are being tested.
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 identify women at higher risk of blood clots from hormones based on family history, improving prevention advice.
- What could go wrong
- This is an observational study, not a treatment trial. It may not prove cause and effect, and results might not apply to all populations.
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
Locations
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CH Morlaix
RECRUITINGMorlaix, France
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CHRU Brest
RECRUITINGBrest, 29200, France
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Clermont Ferrand
RECRUITINGClermont-Ferrand, France
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HIA
RECRUITINGBrest, France
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Paris HEGP
RECRUITINGParis, France
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RENNES
RECRUITINGRennes, France
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Saint Etienne
RECRUITINGSaint-Etienne, France
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Tours
RECRUITINGTours, France
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