CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 744 enrolled
Drug / intervention
Not specified
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT02297373
NCT02297373N/ACompleted

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

Ottawa Hospital Research Institute·observational·Posted Nov 21, 2014·Updated Sep 5, 2025

In Brief

An observational study for Thromboembolic Disease Recurrent and 4 related conditions. Completed, enrolled 744 participants across 9 sites in 3 countries.

Detailed 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.

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
CountriesCanada, Netherlands, Switzerland
Collaborators--

Timeline

N/ACompletedFinished
201520162017201820192020202120222023202420252026
First PostedNov 21, 2014
Enrollment StartNov 19, 2014
Primary CompletionJan 3, 2019
TodayJul 2, 2026
Enrollment to primary: 4.1 yearsPosted 11.6 years ago