Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Thrombin generation testing to predict bleeding in cancer patients on anticoagulants for thrombosis

Official title: Association Between Thrombin Generation Parameters and the Risk of Bleeding in Patients Treated With Anticoagulants for Cancer Associated Thrombosis (CAT) (a Multicenter Study)

Run by Centre Hospitalier Universitaire de Saint Etienne · NCT06386107 · Data updated 2026-11-12

This project will test whether a thrombin generation blood test can help predict which cancer patients treated with anticoagulants for a recent deep vein thrombosis or pulmonary embolism are more likely to have bleeding within six months.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment212 (estimated)
SponsorCentre Hospitalier Universitaire de Saint Etienne
Academic / other
Locations4 sites (Clermont-Ferrand and 3 other locations)
StatusRecruiting
StartedSeptember 2, 2025
Main results expectedJuly 2027
Study endsJuly 2028
Registry record updatedAugust 24, 2026
Trial IDNCT06386107 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults with active solid-tumor cancer who have a new proximal lower-limb DVT and/or segmental-or-larger pulmonary embolism and who can start curative-dose anticoagulation.

Probably not a fit

Patients with hematologic malignancies, those already on therapeutic anticoagulation for another indication, those with a contraindication to anticoagulation, or those already switched to a DOAC before inclusion are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This multicenter prospective project will enroll patients with active cancer who have a new proximal deep vein thrombosis or at least segmental pulmonary embolism and who are starting curative-dose anticoagulation. Investigators will measure thrombin generation assay (TGA) parameters at inclusion and follow patients for six months to record hemorrhagic complications. The goal is to determine whether baseline TGA adds predictive value to existing clinical models, which currently perform poorly in this population. Collaborators include university hospitals in Saint-Étienne, Clermont-Ferrand, Grenoble and Lyon and industry partners providing assay support.

Why it matters

Potential benefit: If successful, the test could help identify patients at higher bleeding risk so clinicians can personalize anticoagulant choice or monitoring to reduce harm.

How similar studies have gone: Thrombin generation assays have shown usefulness for thrombotic risk in cancer and for bleeding assessment in hemophilia, but their ability to predict anticoagulant-related bleeding in cancer patients is largely unproven and remains exploratory.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with active cancer, as defined by current French recommendations (Mahé I et al Rev Mal Respir 2021)
* Presenting acute proximal deep vein thrombosis of the lower limb (DVT) and/or proximal pulmonary embolism (at least segmental) (PE), confirmed by objective tests (Doppler ultrasound in the event of DVT; lung scintigraphy or CT scan in the event of PE)
* No contraindication for anticoagulant treatment at a curative dose at the time of inclusion

Exclusion Criteria:

* Patients participating in a therapeutic clinical trial with a blinded therapy or an open-label therapeutic trial who are included in the experimental treatment group.
* Patients already on anticoagulant at a curative dose for valvular or rhythmic embolic disease or a history of venous thromboembolic disease
* Hematological malignancies
* Patients with a contraindication to anticoagulant treatment on inclusion
* Patient whose relay by DOAC has already been carried out.

Where it's running

  • Chu St-Etienne
    Saint-Etienne, France
    Recruiting
  • Chu Clermont-Ferrand
    Clermont-Ferrand, France
    Not yet recruiting
  • CHU de Grenoble
    Grenoble, France
    Not yet recruiting
  • Hcl
    Lyon, France
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.