Clinical trial Recruiting at 14 sites Observational Ages 18 to 60 Women only

Evaluating anticoagulation management during pregnancy and postpartum

Official title: A Prospective Cohort Study Evaluating Peripartum Anticoagulation Management Among Pregnant Women With Venous Thromboembolism and Its Impact on Patient Outcomes

Run by University of Calgary · NCT05756244 · Data updated 2026-11-12

This study is trying to see how well anticoagulation management works for pregnant people using a specific medication to help prevent blood clots during and after pregnancy.

Quick facts

Study typeObservational
Ages18 Years to 60 Years
SexWomen only
Enrollment825 (estimated)
SponsorUniversity of Calgary
Academic / other
Locations14 sites (Durham, North Carolina and 13 other locations)
StatusRecruiting
StartedApril 4, 2023
Main results expectedJune 30, 2029
Study endsDecember 31, 2029
Registry record updatedNovember 28, 2025
Trial IDNCT05756244 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include pregnant individuals aged 18 or older who require anticoagulation for a VTE indication during pregnancy.

Probably not a fit

Patients who are receiving anticoagulation for non-VTE indications or those planning home or birthing center deliveries may not benefit from this study.

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

What this trial studies

This study is an international multicenter prospective cohort that assesses anticoagulation management strategies around labor, delivery, and the postpartum period. It aims to collect quality data on postpartum bleeding events, venous thromboembolism (VTE) risk, delivery experiences, and healthcare utilization for individuals on low-molecular-weight heparin (LMWH) during pregnancy. By standardizing outcome definitions, the study seeks to improve understanding of the implications of anticoagulation management in pregnant individuals.

Why it matters

Potential benefit: If successful, this study could enhance the safety and effectiveness of anticoagulation management for pregnant individuals at risk of VTE.

How similar studies have gone: Other studies have explored anticoagulation management in pregnancy, but this specific approach is novel in its comprehensive evaluation of postpartum outcomes.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 18 years of age or older
* Requires anticoagulation during the antepartum period of pregnancy for a VTE indication, including at least one of:

  1. Objectively confirmed VTE (DVT, superficial vein thrombosis \[SVT\], PE or unusual site thrombosis) diagnosed during the current pregnancy;
  2. Objectively confirmed VTE diagnosed in a prior pregnancy;
  3. Objectively confirmed VTE diagnosed when not pregnant;
  4. Inherited or acquired thrombophilia requiring anticoagulation.
* Receiving any dose or type of LMWH during the antepartum period

Exclusion Criteria:

* Anticoagulation for a non-VTE indication, including prosthetic heart valves, atrial fibrillation, prevention of placenta-mediated pregnancy complications, or prevention of recurrent pregnancy loss (participants can be included with a diagnosis of antiphospholipid syndrome (APS) with or without thrombotic events)
* Unable to provide or declined consent.
* Home or birthing centre planned delivery.

Where it's running

  • Duke University Hospital
    Durham, North Carolina, United States
    Recruiting
  • Foothills Medical Centre
    Calgary, Alberta, Canada
    Recruiting
  • Royal Alexandra Hospital
    Edmonton, Alberta, Canada
    Recruiting
  • BC Women's Hospital and Health Centre
    Vancouver, British Columbia, Canada
    Recruiting
  • St. Boniface Hospital
    Winnipeg, Manitoba, Canada
    Recruiting
  • McMaster University Medical Centre
    Hamilton, Ontario, Canada
    Recruiting
Show 8 more locations
  • The Ottawa Hospital - General Campus
    Ottawa, Ontario, Canada
    Recruiting
  • Montfort Hospital
    Ottawa, Ontario, Canada
    Recruiting
  • Mount Sinai Hospital
    Toronto, Ontario, Canada
    Recruiting
  • CHU Sainte-Justine
    Montreal, Quebec, Canada
    Recruiting
  • The Sir Mortimer B. Davis Jewish General Hospital
    Montreal, Quebec, Canada
    Recruiting
  • Aarhus University Hospital
    Aarhus, Denmark
    Recruiting
  • Le Centre Hospitalier Universitaire of Saint-Etienne
    Saint-Etienne, France
    Recruiting
  • Hopitaux universitaires de Geneve
    Geneva, Switzerland
    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.