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Venous Thromboembolism (VTE)MARTHARecidiveNCT03977870

Identification of New Genetic Markers for the Risk of Recurrence of Venous Thromboembolism by Whole Genome Analysis

An observational study of Venous Thromboembolism (VTE), run by Assistance Publique Hopitaux De Marseille 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

Venous thromboembolism (VTE) is a common and potentially fatal pathology in France. The risk of recurrence is around 5 to 7% per year. The identification of patients at risk of VTE and its prevention is a real health issue in particular. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Venous Thromboembolism (VTE)
What is being tested?
vital status determination
How many people
843 participants
Where
1 siteFrance
Study dates
1 Jul 2018to 3 Aug 2023
How long will I take part?
1 Day
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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: The Martha cohort is composed of 1542 subjects from the Region of Marseille with at least one episode of VTE documented. Patients in the MARTHA cohort have already all been genotyped for approximately 500,000 polymorphisms

Who may be able to join

  • patients of the MARTHA cohort

Who cannot join

  • none

Trial locations and contacts

1 site in 1 country.

France1 site
  • Assistance Publique Hôpitaux de Marseille

    Marseille, 13005

Other trials in France

About this study

Official title: Identification of New Genetic Markers for the Risk of Recurrence of Venous Thromboembolism by Whole Genome Analysis: Case-control Study Nested in the MARTHA Cohort

Venous thromboembolism (VTE) is a common and potentially fatal pathology in France. The risk of recurrence is around 5 to 7% per year. The identification of patients at risk of VTE and its prevention is a real health issue in particular. 50% of MTEV recurrences occur in the absence of a risk situation, suggesting the involvement of specific risk factors for MTEV recurrence that have not been identified to date.

In the last ten years, so-called "genome-whole" or "genome wide" association (GWAS) approaches have identified new genetic risk factors for the first episode of VTE. On the other hand, no study has focused on the predictive factors of recurrence.

Read more

The previous project, conducted from 2012 (NCT02904967), had as its main objective to identify new genes for susceptibility to MTEV recurrence by comparing cases of MTEV recurrence versus controls having had a single episode of MTEV. The MARTHA cohort (1,542 patients) is extremely valuable study material and is one of the few cohorts in the world with genome-wide data in the field of VTE. Follow-up could only be performed in 359 patients, 76 (21%) of whom presented with a new episode of VTE.

The objective of this project is to increase the number of patients for whom the investigators will have information on recurrence / non-recurrence of VTE, by querying national registries on the vital status of patients, and possible causes of death. .

These new data on the occurrence or not of a new thrombotic episode, will be confronted with the genetic data already available in all the patients in order to identify specific genetic risk factors and potentially predictive of the recurrence of MTEV.

Being tested
vital status determination
Medical subject headings
Venous Thromboembolism

What participants receive

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

  • vital status determinationOther

    consultation of national registries

Study groups in NCT03977870
Study groupRoleWhat they receive
patients with Venous thromboembolism (VTE)Not described
Receives: Other: vital status determination

What is being measured

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

  1. MTEV recurrence

    information on recurrence / non-recurrence of VTE, by querying national registries on the vital status of patients, and possible causes of death.

    Measured: 12 months

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 2019
  2. Study start1 Jul 2018
  3. Primary completion13 May 2019
  4. Study completion3 Aug 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
Prospective
Enrolment
843 participants (actual)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT03977870
Sponsor's protocol ID
2018-27
Acronym
MARTHARecidive
Status last verified
Aug 2023
First submitted
5 Jun 2019
Last updated
4 Aug 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Venous Thromboembolism (VTE), run by Assistance Publique Hopitaux De Marseille 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?

The sponsor lists 1 inclusion and 1 exclusion criteria. 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 Aug 2023. 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?

MTEV recurrence (time frame: 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 Aug 2023.

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