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Hidden danger: abuse may double blood clot risk for women on the pill

NCT ID NCT05890924

Knowledge-focused Sponsor: Centre Hospitalier Universitaire de Nīmes Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study looked at whether intimate partner violence (IPV) increases the risk of blood clots in women taking combined oral contraceptives. Researchers compared 997 women who had a first blood clot with similar women who did not, using a questionnaire to screen for IPV. The goal was to see if IPV is an overlooked risk factor for venous thromboembolism.

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 the study finds a link, it could highlight intimate partner violence as a new risk factor for blood clots in women on birth control, leading to better screening and prevention.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove cause and effect, only an association. The results may not apply to all women or change current medical practice.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

997 people

The number who actually took part.

Started

Jan 2023

Finished

Sep 2023

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Women managed and followed by their respective departments dedicated to the evaluation of the vascular risk in women (Gynecology-Obstetrics + Haematology)

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

* Patients: first venous thromboembolic event associated with the intake of combined oral contraceptives * Controls: regular follow-up of their combined oral contraception * Patient-Control pairs matched on region of residence, age, duration of COC intake, type of COC.

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Conditions

The condition(s) this trial relates to.

thrombophilia due to thrombin defect venous thromboembolism Venous Thrombosis

As listed by the trial registrant

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

Venous thrombosis

Contacts and locations

Locations

  • CHU de Nîmes - Hôpital Universitaire Carémea

    Nîmes, 30029, France

More trials for these conditions

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