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Clinical Predictors for Venous Thromboembolism in Patients With a History of Thrombosis (PREDICTORS)

NCT02297373 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 744

Last updated 2025-09-05

Study results available
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Summary

Patients with a history of blood clots are at risk of developing additional clots in the future. Doctors use a tool called a clinical decision rule to tell them how likely it is that a patient has a blood clot and if they should have further testing to look for the clot. This tool may cause doctors to over-diagnosis a recurrent clot because the symptoms may be left over from the previous clot. Correctly diagnosing a recurrent blood clot is very important since there are risks associated with both over-diagnosis and under-diagnosis. If a recurrent blood clot is missed (under-diagnosis) the patient is at risk of death from a clot in the lungs. If blood thinners are prescribed when they are not needed (over-diagnosis), the patient may have to take blood thinners for their lifetime and risk having serious bleeding.

Conditions

  • Thromboembolic Disease Recurrent
  • Deep Vein Thrombosis
  • Pulmonary Embolism
  • Venous Thromboembolism
  • Recurrent Thromboembolic Disease

Sponsors & Collaborators

  • Ottawa Hospital Research Institute

    lead OTHER

Principal Investigators

  • Gregoire Le Gal, MD · Ottawa Hospital

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-11-19
Primary Completion
2019-01-03
Completion
2019-01-03

Countries

  • Canada
  • Netherlands
  • Switzerland

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02297373 on ClinicalTrials.gov