ClinicalTrials.gg
RecruitingNCT05885529GUESTUpdated Feb 19, 2025

Glial Fibrillary Acidic Protein (GFAP) and Ubiquitin Carboxy-terminal Hydrolase L1 (UCH-L1) to Exclude Lesions Linked to Significant Traumatic Brain Injuries

An observational study in Traumatic Brain Injury, sponsored by Centre Hospitalier Princesse Grace. Recruiting at 15 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-02-19.

Sponsored by Centre Hospitalier Princesse Grace · Observational

From the registry’s dates

  • Primary completion was expected by Dec 2025, 10 months ago, but the record still lists the study as recruiting.
  • Started Apr 2024; still recruiting 2 years 6 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
1,500
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this observational study is to evaluate the performance of UCH-L1 and GFAP combined in patients with a mild traumatic brain injury. The main question :

  • Does the combination of UCH-L1 and GFAP can exclude brain injuries detected with CT scan in the first twelve hours after a mild traumatic brain injury?

Participants will do the exams planed in routine care and :

  • during the expected blood sampling an additional blood sample will be done,
  • seven days after the discharge a call will be done by the investigator.
Read the detailed description

Main study

The main study includes subjects presenting to the emergency department within 12 hours of mild traumatic brain injury with an intermediate risk of clinical worsening or intracranial lesions.

The participants have at least one of the following characteristics, as defined in the French recommendations

  • > 65 years treated with anti-platelet agents
  • Glasgow Score \< 15 at two hours after the trauma if associated intoxication (alcohol, narcotic, psychotropic)
  • Trauma with high kinetics (for information only: a risk mechanism (pedestrian knocked down by a motorized vehicle, ejection from a vehicle, fall from more than 3 steps (more than one meter), etc.),
  • Amnesia of facts > 30 min before the trauma

The study includes clinical sites in France and Monaco. Participants have a blood sample and a brain scan as part of the care. The participation of subjects in the study will not influence their treatment.

Ancillary study The ancillary study uses qualitative research methodology to assess acceptance by physicians and patients of a biological test rather than a CT scan to exclude intracranial complication after mild traumatic brain injury.

The study will takes place in the emergency department of the Nice University Hospital Center (CHU of Nice). It will include 30 subjects: 15 subjects presenting to the emergency room for mild traumatic brain injury and included in the main protocol and 15 prescribing emergency physicians.

The participation of subjects in the study will not influence their treatment.

02

Conditions studied

  • Traumatic Brain Injury

Keywords

  • UCHL1
  • GFAP
  • CT scan
03

In context

Brain Injuries, Traumatic

1,721 studies on the registry are indexed under Brain Injuries, Traumatic; 447 are open to participants now.

This study's planned enrollment of 1,500 is above the median of 117 across 557 observational studies indexed under Brain Injuries, Traumatic.

Browse Brain Injuries, Traumatic studies →

Lead sponsor

Centre Hospitalier Princesse Grace is the lead sponsor of 19 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Adult subjects consulting in the emergency department within 12 hours following a mild traumatic brain injury at risk of complications meeting the inclusion and exclusion criteria listed in the protocol.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Traumatic brain injury defined by

    • Impact on the skull or the face AND OR
    • Acceleration / deceleration
  • Glasgow Coma Scal 13, 14 or 15
  • One of the following 4 criteria:

    • > 65 years treated with anti- agent,
    • GCS \< 15 two hours after the trauma if associated intoxication (alcohol, narcotic, psychotropic),
    • Trauma with high kinetics (for information only: a risk mechanism (pedestrian knocked down by a motorized vehicle, ejection from a vehicle, fall from more than 3 steps (more than one meter), etc.),
    • Amnesia of facts > 30 min before the trauma.
  • Having a blood sample taken as part of care with a delay between the clinical event and the biological sample \< 12 hours
  • Having a CT-scan prescription as part of the MTBI evaluation
  • Patient who signed an form

Exclusion criteria

Exclusion Criteria:

  • Person not affiliated or not benefiting from a health insurance scheme.
  • Person under judicial protection.
  • Person with restrictions of freedom or subject to Articles L.3212-1 and L.3213-1, and not included in Article L.1122-8 of the French CSP
  • Blood collection time > 12 hours
  • Subjects for which a scan would be carried out systematically, including:

    • GCS \<13 (moderate or severe trauma),
    • congenital hemostasis disorders or patient on anti-coagulant treatment,
    • clinical signs evoking a fracture of the vault or the base of the skull,
    • more than one episode of vomiting,
    • post-traumatic convulsion,
    • focal neurological deficit.
  • Obstacle to follow-up at D7
  • Malignant melanomas
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
1,500 participants (estimated)
Patient registry
No
Biospecimen retention
Samples without dna

Groups and cohorts

  • consecutive participants in the 15 centers

    adult patients with mild traumatic brain injury admitted within 12 hours after the trauma. No interventions, observational study

    Other: UCH-L1 GFAP

Interventions

  • OtherUCH-L1 GFAP

    measurment of UCH-L1 GFAP within 12 hours in adult patients after a mild traumatic brain injury

06

What researchers measure

Primary outcomes

  1. performance of UCH-L1 and GFAP combined to rule out intracranial complication after MTBI

    Percentage of intracranial lesion excluded by UCH-L1 and GFAP combined, versus the CT scan, within the first 12 hours following a MTBI

    Time frame: during the first 12 hours

Secondary outcomes

  1. Performance of UCH-L1 and GFAP combined to rule out intracranial bleeding after MTBI

    Percentage of intracranial bleeding excluded by UCH-L1 and GFAP alone or combined, versus the CT scan, within the first 12 hours following a MTBI

    Time frame: during the first 12 hours

  2. Performance of UCH-L1 and GFAP combined to rule out intracranial bleeding after MTBI

    Percentage of intracranial lesion excluded by UCH-L1 and GFAP alone or combined, versus the CT scan, within the first 12 hours following a MTBI .

    Time frame: during the first 12 hours with a focus every 3 hours

  3. Comparation of UCH-L1 and GFAP combined or alone, to S100b protein (PS100b)

    Percentage of intracranial complication identified by UCH-L1 and GFAP, alone or in combination, versus PS100b within the first 12 hours following a MTBI .

    Time frame: during the first 12 hours with a focus every 3 hours

  4. Predicted impact of using UCH-L1 and GFAP combined

    Variation of resource consumption by the use of UCH-L1 and GFAP

    Time frame: day 7

  5. Performance of UCHL-1 and GFAP alone or combined to predict complications

    Percentage of complications avoided by the use of UCH-L1 and GFAP, alone or combined.

    Time frame: during the first 7 days

Other outcomes

  1. ancillary outcome

    Acceptability by a semi-directed interview of a new strategy integrating the use of biomarkers for the management of MTBI by patients and investigators

    Time frame: Day 1

07

Study locations

14 of 15 sites recruiting
  • Centre Hospitalier Universitaire d'Angers
    Angers, France
    Recruiting
    • Delphine DOUILLET, MD · Contact
  • Hôpital Gabriel-Montpied - CHU de Clermont-Ferrand
    Clermont-Ferrand, France
    Recruiting
    • Jeannot SCHMIDT, MD-PhD · Contact
  • Hôpital François Mitterrand - CHU de Dijon
    Dijon, France
    Recruiting
    • Patrick RAY, MD-PhD · Contact
  • Hôpital Nord - CHU de Grenoble-Alpes
    Grenoble, France
    Recruiting
    • Damien VIGLINO, MD-PhD · Contact
  • Hospices Civils de Lyon
    Lyon, France
    Recruiting
    • Laurent JACQUIN, MD · Contact
  • Hôpital Lapeyronie - CHU de Montpellier
    Montpellier, France
    Not yet recruiting
    • Xavier BOBBIA, MD-PhD · Contact
  • Hôtel Dieu - CHU de Nantes
    Nantes, France
    Recruiting
    • Emmanuel MONTASSIER, MD-PhD · Contact
  • Hôpital Pasteur CHU de Nice
    Nice, France
    Recruiting
    • Céline OCCELI, MD · Contact
  • Hôpital Carémeau - CHU de Nîmes
    Nîmes, France
    Recruiting
    • Pierre-Géraut CLARET, MD-PhD · Contact
  • AP-HP Nord Lariboisière
    Paris, France
    Recruiting
    • Anthony CHAUVIN, MD · Contact
  • AP-HP Sorbonne Université, site Pitié-Salpêtrière
    Paris, France
    Recruiting
    • Pierre HAUSFATER, MD-PhD · Contact
  • Hôpital Saint-Joseph
    Paris, France
    Recruiting
    • Camille GERLIER, MD · Contact
  • Centre Hospitalier Universitaire de Poitiers
    Poitiers, France
    Recruiting
    • Jérémy GUENEZAN, MD · Contact
  • Hôpital Trousseau - CHRU Tours
    Tours, France
    Recruiting
    • Said LARIBI, MD-PhD · Contact
  • Centre Hospitalier Princesse Grace
    Monaco, Monaco
    Recruiting
    • Yann-Erick CLAESSENS, MD-PhD · Contact
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Apr 2024 (actual). Primary completion is estimated for Dec 2025, 19 months after the start.

Of 228 non-industry observational studies under Brain Injuries, Traumatic, half reached primary completion within 50 months of starting (the median), counting those still running; a quarter within 23 and three quarters within 95. This study's planned 19 months is below that.

Counting every sponsor, half of 250 studies reached it within 49 months; a quarter within 23 and three quarters within 95.

How these figures are worked out, and which studies are left out of them.

Registered
May 4, 2023
First posted
Jun 2, 2023
StartActual
Apr 19, 2024
Primary completionEst.
Dec 15, 2025
CompletionEst.
Mar 30, 2026
Last update
Feb 19, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 19, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05885529
Lead sponsor
Centre Hospitalier Princesse Grace
Responsible party
Sponsor
First posted
Jun 2, 2023
Start date
Apr 19, 2024
Primary completion
Dec 15, 2025 (estimated)
Completion
Mar 30, 2026 (estimated)
Last update
Feb 19, 2025

Study contacts

Yann-Erick CLAESSENS, MD-PhD
Contact
yann-erick.claessens@chpg.mc
97 98 99 00 ext. +377
Nicolas RIJO, CRA
Contact
recherche.clinique@chpg.mc
97 98 99 00 ext. +377
Pierre HAUSFATER, MD-PhD
study director · Assistance Publique - Hôpitaux de Paris

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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