NCT04995068

Brief Summary

Mild traumatic brain injury (mTBI) is one of the most common reasons behind emergency department (ED) visits. A small portion of mTBI patients will develop an intracranial lesion that might require neurosurgical intervention. Several guidelines have been developed to help direct these patients for head Computerized Tomography (CT) scanning, but they lack specificity, mainly focus on ruling out lesions, and do not estimate the risk of lesion development. The aim of this retrospective observational study is to create a risk stratification score that predicts the likelihood of intracranial lesion development, lesion progression, and need for neurosurgical management in patients with mTBI presenting to the ED. Eligible patients are adults (≥ 15 years) with mTBI (defined as admission Glasgow Coma Scale (GCS) 13-15) who presented to the ED within 24 hours of injury to any ED in Stockholm, Sweden between 2010-2020. Reasons for ED visit and Internal Classification of Disease (ICD) codes will be used to screen for patients. Machine-learning models will be applied. The primary outcome will be a traumatic lesion on head CT, defined as a cerebral contusion, subdural haematoma, epidural haematoma, subarachnoid haemorrhage, intraventricular haemorrhage, diffuse axonal injury, skull fracture, traumatic infarction or sinus thrombosis. The secondary outcomes will be any clinically significant lesion, defined as an intracranial finding that led to neurosurgical intervention, discontinuation or reversal of anticoagulant or antiplatelet medication, hospital admission \> 48 hours due to the TBI, or death.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2021

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

July 27, 2021

Completed
10 days until next milestone

First Posted

Study publicly available on registry

August 6, 2021

Completed
4.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

March 10, 2025

Status Verified

October 1, 2024

Enrollment Period

4.8 years

First QC Date

July 27, 2021

Last Update Submit

March 6, 2025

Conditions

Keywords

neurosurgery

Outcome Measures

Primary Outcomes (1)

  • Traumatic intracranial lesion

    Any traumatic lesion on head CT, defined as a cerebral contusion, subdural haematoma, epidural haematoma, subarachnoid haemorrhage, intraventricular haemorrhage, diffuse axonal injury, skull fracture, traumatic infarction or sinus thrombosis.

    Immediately after the procedure (CT-scan)

Secondary Outcomes (2)

  • Clinically significant traumatic intracranial lesion

    Immediately after the procedure (CT-scan)

  • Lesion progression

    Within 48 hours of the first CT-scan

Study Arms (1)

Included patients

See inclusion and exclusion criteria

Radiation: Head CT to determine presence of traumatic intracranial lesion

Interventions

Head CT to determine presence of traumatic intracranial lesion

Included patients

Eligibility Criteria

Age15 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adults (≥ 15 years) with mild traumatic brain injury (GCS 13-15) who presented to the emergency department within 24 hours of injury.

You may qualify if:

  • Adult (≥ 15 years)
  • Presented to emergency department within 24 hours of TBI
  • GCS 13-15 at presentation to the emergency department

You may not qualify if:

  • No CT scan performed
  • Patient from another Region in Sweden/another country
  • Penetrating TBI
  • Secondary transfer from other emergency department
  • Medical record missing

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Karolinska University Hospital

Stockholm, Sweden

RECRUITING

Related Publications (2)

  • Yang LJ, Tatter C, Fletcher-Sandersjoo A, Froese L, Lassaren P, Tjerkaski J, Bergman EE, Bjorkman FE, Bronge J, Antonsson J, Teromaa K, Nylander M, Ortqvist S, Kylander W, Lindqvist W, Angeby K, Rubenson Wahlin R, Thelin EP. Stockholm Score of Lesion Detection on Computed Tomography following Mild Traumatic Brain Injury (SELECT-TBI) Study: Pilot Analysis and Statistical Analysis Plan. Acta Neurochir (Wien). 2025 Jul 1;167(1):181. doi: 10.1007/s00701-025-06598-1.

  • Fletcher-Sandersjoo A, Tatter C, Yang L, Ponten E, Boman M, Lassaren P, Forsberg S, Gronlund I, Tidehag V, Rubenson-Wahlin R, Strommer L, Westberg K, Angeby K, Djarv T, Lundblad O, Bartek J Jr, Thelin EP. Stockholm score of lesion detection on computed tomography following mild traumatic brain injury (SELECT-TBI): study protocol for a multicentre, retrospective, observational cohort study. BMJ Open. 2022 Sep 1;12(9):e060679. doi: 10.1136/bmjopen-2021-060679.

MeSH Terms

Conditions

Brain Injuries, TraumaticBrain Concussion

Condition Hierarchy (Ancestors)

Brain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and InjuriesHead Injuries, ClosedWounds, Nonpenetrating

Study Officials

  • Eric P Thelin, MD, PhD

    Karolinska Institutet

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Eric P Thelin, MD, PhD

CONTACT

Alexander Fletcher-Sandersjöö, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator

Study Record Dates

First Submitted

July 27, 2021

First Posted

August 6, 2021

Study Start

March 1, 2021

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

March 10, 2025

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will share

The datasets used and/or analyzed during the planned study will be available from the corresponding author on reasonable request.

Shared Documents
STUDY PROTOCOL, SAP, CSR
Time Frame
Following publication of the study, the above will be available from the corresponding author on reasonable request.

Locations