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Von Willebrand DiseasesWITECMO-HNCT03070912

Frequency of Hemorrhages Associated With the Functional Anomalies of Willebrand Factor in Emergency Patients

An observational study of Von Willebrand Diseases, run by University Hospital, Lille at 7 sites 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

ECMO has improved the outcome of heart or respiratory failure and carcinogenic shock and are increasingly used. However bleeding complications occurring in up to 50% of patients are poorly understood and worsen the overall results. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Von Willebrand Diseases
How many people
257 participants
Where
7 sitesFrance
Study dates
19 Jan 2018to 31 Dec 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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: patients older than 18 years receiving either veno-arterial or even-venous ECMO and referred at Lille University Hospital

Who may be able to join

  • informed consent of patient or person in charge
  • patient supplied by an ECMO for cardiac or respiratory failure and referred to Lille University Hospital
  • patient affiliated to "french social security"

Who cannot join

  • pregnant woman
  • no consent
  • no affiliation to
  • patient affiliated to '
  • preexisting bleeding disorders

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

France7 sites
  • CH ARRAS

    Arras

  • CH Boulogne

    Boulogne-sur-Mer

  • CH DOUAI

    Douai

  • CH Dunkerque

    Dunkirk, 59385

  • Hôpital Cardiologie, CHU

    Lille

  • Ch Tourcoing

    Tourcoing

  • Ch Valenciennes

    Valenciennes

Other trials in France

About this study

Official title: Study of the Frequency of Hemorrhages Associated With the Functional Anomalies of Willebrand Factor in Emergency Patients of a Veino Arterial or Veinous ECMO

ECMO has improved the outcome of heart or respiratory failure and carcinogenic shock and are increasingly used. However bleeding complications occurring in up to 50% of patients are poorly understood and worsen the overall results. The aim is to investigate the occurence of bleeding and its frequency according to the type of ECMO either veno-arterial or veno-venous. The investigators also want to assess the relation of bleeding with von Willebrand Factor defects.

Keywords
mechanical circulatory support, bleeding, acquired von willebrand disease, acquired von willebrand disease
Medical subject headings
von Willebrand Diseases, Hemorrhage

What is being measured

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

  1. Frequency of major bleeding

    Number of major bleeding events (BARC classification ) occurring within the time course of support by ECMO

    Measured: During ECMO support, up to 3 weeks after implantation

Secondary outcomes (8)
  1. Number of Participants With Abnormal VWF functional activities and multimeric profile according to the type of ECMO support (VA- or VV-ECMO)

    Willebrand Factor abnormalities according to the type of ECMO support (VA- or VV-ECMO)

    Measured: 1 hour, 24 hours and day seven after implantation

  2. Number of Participants With Abnormal VWF functional activities and multimeric profile before and after the first reduction in VA-ECMO flow rate

    Willebrand Factor abnormalities according to residual arterial pulsatility levels under VA-ECMO

    Measured: During ECMO support, up to 3 weeks after implantation

  3. Number of Participants With Abnormal VWF functional activities and multimeric profile in 2 groups defined by the level of pulse pressure measured before ECMO weaning: high (> median) or low (< median) pulse pressure

    Willebrand Factor abnormalities according to residual arterial pulsatility levels under VA-ECMO

    Measured: During ECMO support, up to 3 weeks after implantation

  4. Number of Participants With major bleeding events (BARC classification) before and after the first reduction in VA-ECMO flow rate

    Willebrand Factor abnormalities according major bleeding events under VA-ECMO

    Measured: During ECMO support, up to 3 weeks after implantation

  5. Number of Participants With major bleeding events (BARC classification) in 2 groups defined by the level of pulse pressure measured before ECMO weaning: high (> median) or low (< median) pulse pressure

    Willebrand Factor abnormalities according major bleeding events under VA-ECMO

    Measured: During ECMO support, up to 3 weeks after implantation

  6. Frequency of major bleeding events according to diabetes status

    Number of major bleeding events (BARC classification ) occurring within the time course of support by ECMO in patients with and without diabetes

    Measured: During ECMO support, up to 3 weeks after implantation

  7. Frequency of major thrombotic events according to diabetes status

    Number of major thrombotic events (stroke, transient ischemic attack, acute limb ischemia, ECMO thrombosis) occurring within the time course of support by ECMO in patients with and without diabetes

    Measured: During ECMO support, up to 3 weeks after implantation

  8. Frequency of pro-thrombotic biological abnormalities

    Measurement of plasma free hemoglobin, leuco-platelet aggregates and neutrophil extracellular traps levels

    Measured: During ECMO support, up to 3 weeks after implantation

Timeline

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

  1. First posted6 Mar 2017
  2. Study start19 Jan 2018
  3. Primary completion31 Dec 2023
  4. Study completion31 Dec 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
257 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03070912
Sponsor's protocol ID
2015_83
Other IDs
2017-A00256-47
Acronym
WITECMO-H
Status last verified
Nov 2025
First submitted
13 Feb 2017
Last updated
28 Nov 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Moussa MD, Abou-Arab O, Staessens S, Jungling M, Labreuche J, Lamer A, Beyls C, Rousse N, Rauch A, Loobuyck V, Beaudeux C, Pierache A, Deblauwe D, Corseaux D, Dubernet M, Guilbart M, Thellier L, Mahjoub Y, Juthier F, Dupont H, De Meyer SF, Vincentelli A, Susen S, Robin E. Comparison of the effects of phosphorylcholin versus heparin-based surface coating on clinical and histologic outcomes during veno-arterial extracorporeal membrane oxygenation support: a propensity score weighted analysis. J Thromb Haemost. 2025 Jun;23(6):1879-1892. doi: 10.1016/j.jtha.2025.02.020. Epub 2025 Feb 26.

    PubMed 40020783
  • Rauch A, Dupont A, Rosa M, Desvages M, Le Tanno C, Abdoul J, Didelot M, Ung A, Ruez R, Jeanpierre E, Daniel M, Corseaux D, Spillemaeker H, Labreuche J, Pradines B, Rousse N, Lenting PJ, Moussa MD, Vincentelli A, Bordet JC, Staels B, Vincent F, Denis CV, Van Belle E, Casari C, Susen S. Shear Forces Induced Platelet Clearance Is a New Mechanism of Thrombocytopenia. Circ Res. 2023 Oct 27;133(10):826-841. doi: 10.1161/CIRCRESAHA.123.322752. Epub 2023 Oct 26.

    PubMed 37883587

Questions about this trial

What is this clinical trial studying?

An observational study of Von Willebrand Diseases, run by University Hospital, Lille at 7 sites 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 3 inclusion and 5 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 28 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites 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?

Frequency of major bleeding (time frame: During ECMO support, up to 3 weeks after implantation). 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 NCT03070912, which also lists 2 linked publications.

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 28 Nov 2025; AzTrials last refreshed its copy on 8 Nov 2026.

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