NCT04002505
The "Concussion or Brain Bleed" Trial
Enrolling by Invitation
NAAges 18–65InterventionalHealth servicesMayo ClinicInvestigator-initiated
~370 participants
Updated 2026-05-29 on ClinicalTrials.gov
What's tested:Concussion and Brain Bleed App (CBB)
At a glance
Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Rate of CT Scans
Measured over 6 months
Conditions
NCT04002505
Where you'd take part
This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.
Mayo Clinic in Rochester
Rochester, Minnesotano site contact published
Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.
Study leadership
- Neha Raukar, MD · PRINCIPAL_INVESTIGATOR · Mayo Clinic
Who to contact
This trial hasn't published a contact. View it on ClinicalTrials.gov
Want this trial checked against your situation?
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Eligibility criteria
Inclusion
18-65 years old
Present to the Emergency Department with a blunt head injury within the past 24 hours
Determined to be low risk by the Canadian CT Head Rules (CCHR), and are being considered for a head CT by the treating provider.
Exclusion
Patients who are pregnant
Non-English speaking
In police custody
Undergoing psychiatric evaluation
Found to have drug or alcohol intoxication
What this trial measures
- Rate of CT Scans6 months
Number of CT scans performed when using the Concussion and Brain Bleed app