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.

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.

venous thromboembolism

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • CH Morlaix

    RECRUITING

    Morlaix, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • CHRU Brest

    RECRUITING

    Brest, 29200, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Clermont Ferrand

    RECRUITING

    Clermont-Ferrand, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • HIA

    RECRUITING

    Brest, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Paris HEGP

    RECRUITING

    Paris, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • RENNES

    RECRUITING

    Rennes, France

    Contact Email: •••••@•••••

  • Saint Etienne

    RECRUITING

    Saint-Etienne, France

    Contact Phone: •••-•••-••••

  • Tours

    RECRUITING

    Tours, France

    Contact Phone: •••-•••-•••• Email: •••••@•••••