Critical Hyperacute Assessment Research On Neurobiomarker Kinetics in Acute Brain Injury
Investigating the Significance of Protein Biomarkers During the Hyperacute Phase of Traumatic Brain Injury and Other CNS Conditions With Hypoxia/Hypoperfusion in Emergency and Prehospital Settings (CHARON)
- Brain Injuries, Traumatic
- Brain Injuries, Acute
- Hypoxia, Brain
- Cardiac Arrest (CA)
At a glance
- Phase
- Phase not stated
- Study type
- Observational
- Sponsor
- University of Pecs
- Enrolment target
- 477
- Started
- 1 March 2026
- Main results due
- 30 June 2028
- Study sites
- 4
- Registry updated
- 29 September 2026
Can you take part?
- Aged 18 years and over.
- Open to any sex.
- You need the condition being studied — healthy volunteers are not accepted.
These are the headline rules only. Every study has a longer list, and whether you are eligible is decided by the research team at the site — never by this page.
Read the full eligibility criteria
Inclusion Criteria * Age 18 years or older (all arms) * Polytraumatized patients categorized as T1 triage by the first responder based on injury mechanism and/or sustained injuries, with intubation indicated by the first responder (Arm 1) * Cardiac arrest treated in the prehospital setting (Arm 2) * Severe traumatic brain injury enrolled at hospital admission (Arm 3) Exclusion Criteria (all arms) * Age under 18 years * Pre-existing neurological or psychiatric conditions * Hypothermia or hyperthermia at the time of enrollment * Pregnancy
What this study is about
In the sponsor’s own words, from the registry.
Traumatic brain injury (TBI) and other conditions that reduce blood flow to the brain - such as cardiac arrest (CA) - are life-threatening medical emergencies. When brain cells are damaged, they release specific proteins into the bloodstream. These proteins, called neurobiomarkers, can be measured in blood samples and may help doctors assess the severity of brain injury, guide treatment, and predict patient outcomes.
A major gap in current knowledge is how these neurobiomarkers behave during the very first minutes and hours after injury - the so-called "hyperacute" phase - especially when patients are still being treated by paramedics or have just arrived at the emergency department (ED). It is not yet clear whether biomarker levels rise immediately at the moment of injury or gradually over time, and how quickly they can be reliably detected.
The CHARON study investigates the time-dependent kinetics of key neurobiomarkers - including S100B, glial fibrillary acidic protein (GFAP), neuron-specific enolase (NSE), ubiquitin carboxy-terminal hydrolase L1 (UCH-L1), neurofilament light chain (NFL), and Tau proteins- during the hyperacute phase of acute brain injury. In addition to these proteins, microRNAs, polar metabolites, and lipid metabolites are also examined as potential biomarkers.
The study enrolls three groups of participants:
* Patients with severe traumatic brain injury and/or polytrauma treated in the prehospital setting and admitted to the ED with T1 (highest priority) triage classification. * Patients with CA treated (resuscitated) in the prehospital setting. * Patients with severe traumatic brain injury enrolled at hospital (ED) admission.
Serial blood samples are collected at multiple time points, beginning during prehospital care and continuing through the first 24 hours of hospital admission. No experimental treatments are given - all participants receive standard medical care.
By analyzing biomarker concentration and kinetics across all three groups and correlating findings with neurological outcome at 30 days, the investigators aim to identify the most clinically effective neurobiomarkers for early diagnosis and prognosis of acute brain injury.
The study is a prospective multi-center investigation conducted at emergency departments, intensive care units, and ambulance services across Hungary.
Study sites(4)
University of Pécs Clinical Center, Department of Emergency Medicine
Pécs, Branya, Hungary
Recruiting
Petz Aladár University Teaching Hospital, Emergency Department
Győr, Győr-Moson-Sopron, Hungary
Recruiting
Hungarian National Ambulance Service
Budapest, Pest County, Hungary
Recruiting
North Pest Central Hospital - Military Hospital, Emergency Centre
Budapest, Pest County, Hungary
Recruiting
Showing 4 of 4 sites. 4 of the 4 sites on this study are recruiting right now — a site can stop enrolling while the study as a whole is still open.
Source: ClinicalTrials.gov record NCT07782216. Trialion does not run this study, is not paid to refer anyone to it, and cannot enrol you. Eligibility is always decided by the research team at the site.
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