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Blood thinner head injury study aims to reduce unnecessary brain scans

NCT ID NCT05364749

Knowledge-focused Sponsor: Dr. Kerstin de Wit Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is developing a checklist to help doctors decide when it's safe to skip a CT scan for head injuries in patients taking blood thinners. Researchers will study 4,000 emergency department patients to find out which symptoms or signs reliably rule out serious brain bleeding. The goal is to reduce unnecessary scans while keeping patients safe.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 4,000 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2022

Expected to finish

Sep 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study enrolls a anticoagulated emergency department patients presenting within 48 hours of a blunt head injury.

Ages

16 years and older

Sex

Anyone

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≥16 years * Presents to the emergency department after a head injury * Patient has a head CT in the emergency department * Is a current anticoagulant user Exclusion Criteria: * Head injury occurred \>48 h before patient's arrival to the emergency department * Penetrating head injury * Previously enrolled * Patient resides outside of the hospital's catchment area * Patient was transferred from another emergency department following neuroimaging * Patient was not managed by the emergency or trauma physician in the emergency department * Leaves the emergency department prior to completion of their medical assessment

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Conditions

The condition(s) this trial relates to.

Brain Injuries, Traumatic Craniocerebral Trauma Head Injuries, Closed head injury intracerebral hemorrhage Intracranial Hemorrhage, Traumatic traumatic brain injury

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Blunt head injury Head injury Intracranial hemorrhage, traumatic Traumatic brain injury

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    7 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • CHU de Québec - Université Laval

    NOT_YET_RECRUITING

    Québec, Quebec, G1R 2J6, Canada

  • Hamilton Health Sciences Corporation

    NOT_YET_RECRUITING

    Hamilton, Ontario, L8L 2X2, Canada

  • Hôpital du Sacré-Cœur de Montréal

    NOT_YET_RECRUITING

    Montreal, Quebec, H4J 1C5, Canada

  • Kingston Health Sciences Centre

    RECRUITING

    Kingston, Ontario, N3T 6P9, Canada

  • Ottawa Hospital Research Institute

    NOT_YET_RECRUITING

    Ottawa, Ontario, K1H 8L6, Canada

  • Sinai Health

    NOT_YET_RECRUITING

    Toronto, Ontario, M5G 1X5, Canada

  • University of British Columbia

    NOT_YET_RECRUITING

    Vancouver, British Columbia, V6T 1Z4, Canada

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