About this trial
MINT is a single-site, prospective, randomized, double-blind, sham-controlled pilot trial evaluating the safety and feasibility of transcutaneous auricular vagus nerve stimulation (taVNS) in patients with moderate to severe traumatic brain injury (GCS 3-12). Participants will be randomized to receive either active taVNS or sham stimulation using the same device. The primary objective is to assess the safety and feasibility of taVNS implementation in the acute TBI setting. Secondary objectives include exploratory measurement of serum inflammatory and neuronal injury biomarkers and assessment of functional outcome using the Extended Glasgow Outcome Scale at hospital discharge.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 18-75 years old
Glasgow Coma Scale (GCS) Score 3-12
Expected Intensive Care Unit (ICU) stay > 48 hours
Presenting with acute Traumatic Brain Injury (TBI) within 24 hours
Disqualifiers
Pregnant
Any electrical implanted device
Immunomodulatory medication
Human Immune Deficiency Virus (HIV) patients
Trial design
Parallel
Treatments tested in this trial
Nurosym taVNS
DeviceTranscutaneous auricular vagus nerve stimulation (taVNS) is a non-invasive neuromodulation technique that electrically stimulates the auricular branch of the vagus nerve via electrodes placed on the tragus of the ear.
Nurosym (sham)
DevicePatients will have the device placed on their tragus and will receive a low level of stimulation that tapers to zero over 30 seconds.
Treatment groups
Trial outcomes
Primary outcomes
Number of Adverse Events
Frequency of adverse events related to tsVNS will be assessed through systematic monitoring
Feasibility of recruitment
Proportion of eligible patients who consent to participate in the study, protocol adherence, and device tolerability.
Secondary outcomes
Change in Interleuken-6 (IL-6) Biomarker Level
Blood tests will be performed to provide IL-6 levels
Change in Glial fibrillary acidic protein (GFAP) levels
Blood tests will be performed to provide GFAP levels
Extended Glasgow Outcome Scale
The Glasgow Outcome Scale - Extended (GOS-E) is an 8-point ordinal scale assessing functional outcome following traumatic brain injury, ranging from 1 (death) to 8 (upper good recovery). It categorizes patients across levels of disability including vegetative state, severe disability, moderate disability, and good recovery, with each category subdivided into upper and lower levels. It will be administered at hospital discharge via structured interview.
Sponsors and contacts
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The University of Texas Health Science Center at San Antonio
Lead sponsor
Parasym Ltd.
Collaborator
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