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Pregnant women needed for blood clot study

NCT ID NCT06575309

Knowledge-focused Sponsor: University Hospital, Clermont-Ferrand Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how a common blood thinner (LMWH) works in pregnant women. Pregnancy naturally makes blood clot more easily, which can be risky. Researchers will use a special test to measure clotting in 50 pregnant women across all trimesters and after birth, to find the best dose of the blood thinner.

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

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2024

Expected to finish

Dec 2027

An estimate. End dates often move.

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

Pregnant women with no health problems recruited during their 1st trimester of pregnancy, then monitored throughout the pregnancy.

Ages

18 to 55 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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.

Inclusion Criteria: * Normal 1st trimester pregnancy * Age \> 18 Exclusion Criteria: * Coagulation disease (Von Willebrand disease, known coagulation factor deficiency before pregnancy) * VTE history * First-degree family history of idiopathic VTE * Known biological risk factor for thrombosis Inherited deficiencies in coagulation inhibitors (antithrombin, protein C, protein S) Factor V Leiden polymorphism Prothrombin gene 20210G\>A polymorphism Anti-phospholipid antibodies * Current anticoagulant use (VKA, heparins, etc.) * Gestational diabetes detected in the 1st trimester * Pre-existing type 1 and type 2 diabetes * History of pathological pregnancy Premature delivery Postpartum hemorrhage Preeclampsia * Hepatopathy * Obesity (BMI ≥ 30) * Infections (HIV, HBV, HCV...) * Autoimmune diseases * Pregnancy resulting from in vitro fertilization protocol * Multiple pregnancy * Patient under guardianship, curatorship or safeguard of justice * Patient not covered by a social security scheme * Patient deprived of liberty

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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.

Pregnant women Venous thromboembolic disease

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • CHU Estaing

    RECRUITING

    Clermont-Ferrand, 63003, France

  • CHU de Clermont-Ferrand

    NOT_YET_RECRUITING

    Clermont-Ferrand, 63000, France

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