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Routine CT scans for minor head injuries on blood thinners may be unnecessary, study suggests

NCT ID NCT03687528

Knowledge-focused Sponsor: Rennes University Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether patients who take antiplatelet drugs (blood thinners) and have a minor head injury, but no other signs of brain bleeding, still need a CT scan. Current guidelines recommend a scan for these patients, but the evidence is weak. The study will follow 3,200 adults to see if skipping the scan is safe when no other risk factors are present.

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 3,200 people

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

Started

Jun 2020

Expected to finish

Dec 2026

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

Major patients undergoing antiplatelet inhibitors treatment which are reported at the clinical exam as having a head injury trauma. These patients don't meet another NICE criteria : * neurological focal deficit * amnesia for more than 30 min * glasgow score less than 15 after 2 hours * loss of consciousness associated with either a high velocity or an age \> 65 years old * suspicion of a cranial open fracture * fracture on cranial basis * more than 1 vomit * post-traumatic convulsion

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * At least 18 years old * Patient with a head injury trauma, described by the patient or seen at the clinical exam * Glasgow score between 13 and 15 at the clinical exam * Current treatment with antiplatelet inhibitors * Informed non opposition form signed Exclusion Criteria : * Absence of CT-scanner * Patients with double anti-platelet aggregation * Patients on anticoagulants

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Conditions

The condition(s) this trial relates to.

Emergencies head injury

As listed by the trial registrant

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

Emergencies Head injury trauma

How to take part

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

  1. The places running it

    12 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

  • CH Bretagne Atlantique

    NOT_YET_RECRUITING

    Vannes, France

  • CH Bretagne Sud - Quimperlé

    RECRUITING

    Quimperlé, France

  • CH Bretagne Sud, Lorient

    RECRUITING

    Lorient, France

  • CH Chartres

    RECRUITING

    Chartres, France

  • CH Le Mans

    RECRUITING

    Le Mans, France

  • CH de Saint Brieuc

    NOT_YET_RECRUITING

    Saint-Brieuc, France

  • CH de Saint Malo

    RECRUITING

    St-Malo, France

  • CHU Brest

    RECRUITING

    Brest, France

  • CHU d'Angers

    RECRUITING

    Angers, France

  • CHU de Nantes

    RECRUITING

    Nantes, France

  • CHU de Poitiers

    RECRUITING

    Poitiers, France

  • CHU de Rennes

    RECRUITING

    Rennes, 35033, France

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