Clinical trial Recruiting at 5 sites Phase 4 Interventional Ages 18 to 120

Comparing preoperative and postoperative blood clot prevention in pancreatic surgery

Official title: Pre- Vs. Postoperative Thromboprophylaxis in Pancreatic Surgery - a Prospective, Multicenter, Randomized Controlled Trial (PREPOSTEROUS Pancreas Trial)

Run by Helsinki University Central Hospital · NCT05245877 · Data updated 2026-11-12

This study is testing whether giving blood clot prevention medication before or after pancreatic surgery works better to keep patients safe from clots.

More Thrombosis trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years to 120 Years
SexAll
Enrollment800 (estimated)
SponsorHelsinki University Central Hospital
Academic / other
Locations5 sites (Toronto and 4 other locations)
StatusRecruiting
StartedAugust 17, 2022
Main results expectedAugust 2026
Study endsSeptember 2026
Registry record updatedFebruary 14, 2025
Trial IDNCT05245877 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults undergoing pancreaticoduodenectomy, total pancreatectomy, or distal pancreatectomy for suspected cancer.

Probably not a fit

Patients on anticoagulant medications, those requiring emergency surgery, or individuals under 18 years old 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 investigates the timing of thromboprophylaxis in patients undergoing pancreatic surgery, specifically comparing preoperative versus postoperative administration of anticoagulants like enoxaparin, tinzaparin, or dalteparin. The research aims to address the lack of consensus and low-quality evidence surrounding thrombosis prevention in this high-risk surgical population. By conducting a prospective randomized trial, the study seeks to provide clearer guidelines for managing the balance between thrombosis and bleeding risks in pancreatic surgery patients.

Why it matters

Potential benefit: If successful, this study could lead to improved protocols for preventing blood clots in patients undergoing pancreatic surgery, potentially reducing complications and enhancing recovery.

How similar studies have gone: While there is limited evidence from retrospective studies, this approach is novel as it aims to provide prospective data in a field lacking high-quality trials.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

All patients undergoing either

1. pancreaticoduodenectomy or total pancreatectomy (for any indication) or
2. distal pancreatectomy for suspicion of cancer

Exclusion Criteria:

1. Patient on anticoagulative medication (heparin, low-molecular weight heparin, warfarin, direct oral anticoagulants) during the month (30 days) preceding surgery
2. Emergency operation (e.g. for trauma, infection or pancreatitis)
3. Age \< 18 years
4. Allergy or other contraindication to planned low-molecular weight heparin
5. Inability to give written informed consent
6. Pancreatic resection not performed (removed from analyses after randomization)

Where it's running

  • Sunnybrook Health Sciences Centre
    Toronto, Canada
    Recruiting
  • Helsinki University Hospital
    Helsinki, Finland
    Recruiting
  • Oulu University Hospital
    Oulu, Finland
    Recruiting
  • Tampere University Hospital
    Tampere, Finland
    Recruiting
  • Oslo University Hospital
    Oslo, Norway
    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.