Evaluation of the Predictive Value of the Microvesicle Coagulo-lytic Balance in the Recurrence of Venous Thrombosis (MICROREVE)

August 25, 2017 updated by: Assistance Publique Hopitaux De Marseille

Venous thromboembolism (VTE) including deep vein thrombosis (DVT) and pulmonary embolism (PE) affects about 1,200,000 individuals each year in Europe. About 50% of VTE are unprovoked and 20% of these patients will face a recurrent event after the usual three to six-month course of anticoagulant treatment. To date, most patients are given prolonged anticoagulant treatment. However, anticoagulant treatment are associated with a major risk of bleeding (3%/year). Thus an accurate identification of patients with unprovoked VTE with a low risk of recurrence is needed to avoid unnecessary anticoagulant treatment with a risk of bleeding.

Over the past few years, microparticles (MPs) which are small vesicles originating from the budding of cellular membranes have emerged as important biological entities regulating hemostasis. MPs expose at their surface procoagulant molecules such as phosphatidylserin and tissue factor (TF). All data obtained in mouse models support a role of MPs in venous thrombosis mediated by the TF activation. Moreover, results from clinical studies showed that TF-MPs was associated with the risk of venous thrombosis. However, the predictive value of TF-MPs in the recurrence of VTE is unknown. Besides, no study has taken into account the recent progresses in the understanding of the role of MPs in haemostasis. Indeed, MPs vectorize molecules which are not only procoagulant but also profibrinolytic. The net result depends on a balance between both activities (the coagulo-lytic balance). This balance is can be measured by two complimentary assays on MPs.

We hypothesized that the coagu-lytic balance of MPs is associated with an increased risk of VTE recurrence after stopping the anticoagulant treatment.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Anticipated)

300

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Marseille, France
        • Assistance Publique Hopitaux de Marseille

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

300 adult patients with a VTE history with at least 3 months of anticoagulant treatment. 150 patients which suffered from a re-thrombosis within 5 years after stopping the anticoagulant treatment, will be age- and sex-matched with 150 without thrombosis recurrence.

Description

Inclusion Criteria:

  • adult patients with a VTE history with at least 3 months of anticoagulant treatment.

Exclusion Criteria:

-

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
re-thrombosis
adult patients with a VTE history with at least 3 months of anticoagulant treatment, which suffered from a re-thrombosis within 5 years after stopping the anticoagulant treatment
Biological: Analysis of plasma samples
Measuring microparticles (MPs) in Human Plasma Samples
no thrombosis recurrence
adult patients with a VTE history with at least 3 months of anticoagulant treatment, without thrombosis recurrence
Biological: Analysis of plasma samples
Measuring microparticles (MPs) in Human Plasma Samples

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
coagu-lytic balance of MPs
Time Frame: 12 months
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Assistance Publique Hopitaux De Marseille

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

September 1, 2017

Primary Completion (Anticipated)

September 1, 2018

Study Completion (Anticipated)

September 1, 2019

Study Registration Dates

First Submitted

August 25, 2017

First Submitted That Met QC Criteria

August 25, 2017

First Posted (Actual)

August 29, 2017

Study Record Updates

Last Update Posted (Actual)

August 29, 2017

Last Update Submitted That Met QC Criteria

August 25, 2017

Last Verified

August 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2017-04

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Venous Thromboembolism (VTE)

Clinical Trials on Analysis of plasma samples

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Finland

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe