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Venous ThrombosisWAST-VTENCT05890924

Intimate Partner Violence as a Risk Factor for Venous Thromboembolism in Women

An observational study of Venous Thrombosis, run by Centre Hospitalier Universitaire de Nīmes at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The frequency of violence against women, or intimate partner violence (IPV) is more and more underlined and recognized as a cofactor favoring certain somatic and psychic pathologies. Read more about this study

Who is it for?
Ages 18 years and older, women onlyHealthy volunteers can take part
Conditions the study is for
Venous Thrombosis
What is being tested?
WAST questionnaire
Type of treatment
Pill or oral medicine
How many people
997 participants
Where
1 siteFrance
Study dates
1 Jan 2023to 5 Sep 2023
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

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

  • 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.

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU de Nîmes - Hôpital Universitaire Carémea

    Nîmes, 30029

Other trials in France

About this study

Official title: (WAST-VTE) Intimate Partner Violence as a Risk Factor for Venous Thromboembolism in Women on Combined Oral Contraceptives: a Matched Case-control Study

The frequency of violence against women, or intimate partner violence (IPV) is more and more underlined and recognized as a cofactor favoring certain somatic and psychic pathologies. However, its incidence in patients with venous thromboembolism (VTE) is unknown and its status as a risk factor is still elusive and ambiguous.

Investigators therefore conducted a matched case-control study consisting of women taking combined oral contraceptives (COC) who were investigated and followed up between 2010 and 2020.

The cases are the patients investigated for their first venous thromboembolic event, The controls were women free of thrombosis who had regular gynecological checkups. Case-control pairs were matched on region of residence, age (+/- 2 years), duration of COC intake (+/- 4 months), COC type (2nd, 3rd or 4th generation).

Being tested
WAST questionnaire
Medical subject headings
Venous Thrombosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • WAST questionnaireOther

    WAST questionnaire, designed and validated as a screening tool for violence against women and intimate partner violence.

    (ref: Brown JB, Lent B, Brett PJ, Sas G, Pederson LL. Development of the Woman Abuse Screening Tool for use in family practice. Fam Med. 1996 Jun;28(6):422-8.)

Study groups in NCT05890924
Study groupRoleWhat they receive
PatientsFirst venous thromboembolic event associated with combined oral contraceptives intake
Receives: Other: WAST questionnaire
Controlsregular follow-up of their combined oral contraception
Receives: Other: WAST questionnaire

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Woman Abuse Screening Tool (WAST)

    Self-administered questionnaire

    Measured: inclusion

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jun 2023
  2. Study start1 Jan 2023
  3. Primary completion5 Sep 2023
  4. Study completion5 Sep 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
997 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05890924
Sponsor's protocol ID
Local/2023/JCG-01
Acronym
WAST-VTE
Status last verified
Sep 2023
First submitted
26 May 2023
Last updated
4 Dec 2025
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Vandevelde A, Gris JC, Moore GW, Musial J, Zuily S, Wahl D, Devreese KMJ. Added value of antiphosphatidylserine/prothrombin antibodies in the workup of obstetric antiphospholipid syndrome: communication from the ISTH SSC Subcommittee on Lupus Anticoagulant/Antiphospholipid Antibodies. J Thromb Haemost. 2023 Jul;21(7):1981-1994. doi: 10.1016/j.jtha.2023.04.001. Epub 2023 Apr 13.

    PubMed 37061133

Questions about this trial

What is this clinical trial studying?

An observational study of Venous Thrombosis, run by Centre Hospitalier Universitaire de Nīmes at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Woman Abuse Screening Tool (WAST) (time frame: inclusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05890924, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Dec 2025.

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