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Transkutan Auricular Neurostimulering for ICU-pasienter med traumatisk hjerneskade (tAN-TBI)

28. september 2026 oppdatert av: Alex Valadka, University of Texas Southwestern Medical Center

Levere transkutan aurikulær nevrostimulering (tAN) til ICU-pasienter med traumatisk hjerneskade (tAN-TBI)

The overarching goal of this pilot study is to assess the feasibility and safety of transcutaneous auricular neurostimulation (tan) in ICU patients with TBi and to determine the effect of tan on serum markers of inflammation. exploratory analyses will examine effects on such physiological parameters as blood pressure, heart rate, and intracranial pressure (iCP), as well as measures of neurological function.

Studieoversikt

Detaljert beskrivelse

This is a single-center, open-label, nonrandomized investigation. TBI patients with a post resuscitation Glasgow Coma Scale (GCS) score of 12 or less (commonly described as moderate or severe TBI) and acute traumatic intradural blood on head CT scan will be screened upon admission to the ICU at Parkland Memorial Hospital. It is expected that all or almost all subjects will be in the Neuroscience or Surgical ICU. Consent for participation will be sought from the subject's legally authorized representative. Exception from informed consent or waiver of consent will not be part of this study.

tAN will begin as soon as feasible after subject enrollment. Immediately prior to this intervention, vital signs, neurologic status, and other clinical parameters will be recorded, and pre-tAN blood will be collected for measurement of serum inflammatory markers. tAN will be administered for 30 minutes under the supervision of a member of the research team. After 30 minutes (just prior to stopping tAN), the same clinical parameters that were recorded at baseline will again be recorded then tAN will be stopped. Approximately two hours after tAN has ended, a post-tAN blood sample will be collected for measurement of the same inflammatory markers as in the pre-tAN blood sample. At each timepoint for blood collection, additional blood may be collected for banking and future analyses.

Patients will undergo research blood draws and tAN stimulation for a maximum of 10 days. Research-related procedures will not exceed this 10-day period.

Studietype

Intervensjonell

Registrering (Antatt)

42

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Post-resuscitation GCS score 12 or below and acute trauma-related intradural blood on head CT scan after TB
  2. Age 18 years or older (pediatric trauma patients are not routinely transported to Parkland)
  3. Consent from legally authorized representative

Exclusion Criteria:

  1. Hemodynamic instability
  2. Expected imminent mortality because of overwhelming neurological and/or systemic injury
  3. Unclear neurological status because of paralytic medications or intoxication with ethanol or other drugs
  4. Presence of other electrical stimulation devices (pacemaker, cochlear prosthesis, neurostimulator, etc.)
  5. Abnormal ear anatomy or ear infection
  6. Participant is pregnant or lactating
  7. Any other significant medical or psychosocial problems that, in the opinion of the investigator, would potentially cause harm to the participant, impact their ability to participate, or influence the results of the trial

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Determine the effect of tAN on serum concentrations of inflammatory mediators in TBI patients

Subjects will receive treatment upon providing informed consent and will undergo transcutaneous auricular neurostimulation (tAN) once daily during their ICU stay, with the treatment duration not exceeding 10 days. Two blood samples will be collected daily: one before the tAN session and another two hours after the session. Participant data will be collected daily throughout the ICU stay. Additionally, surveys will be collected from registered nurses providing direct care to TBI patients enrolled in the tAN-TBI study to assess the compatibility of tAN with patient care processes in the ICU.

This method of simultaneous vagal and trigeminal stimulation via the external ear is known as transcutaneous auricular neurostimulation (tAN), as the targets of electrical stimulation include the auricular branch of the vagus nerve (ABVN) and auriculotemporal nerve (ATN), which is a branch of the mandibular division of the trigeminal nerve. Electrodes applied to select dermatome regions can target ear neural structures and deliver non-invasive vagus nerve stimulation (VNS) and trigeminal nerve stimulation (TNS).

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Survey nursing attitudes towards daily tAN and the compatibility of tAN with standard patient care activities in the ICU; Examine the safety of tAN in ICU patients.
Tidsramme: Registered nurses can complete the Sparrow Ascent ICU User Acceptance Questionnaire at Day 1- Day 10, or before the TBI patient is discharged from the hospital, or ICU. It may not be completed on Day 11 or after the patient has been discharged.

Registered nurses providing direct care to ICU patients receiving tAN will be asked to complete the Sparrow Ascent ICU User Acceptance Questionnaire to assess the compatibility of tAN with patient care.

Registered nurses can complete the Sparrow Ascent ICU User Acceptance Questionnaire at Day 1- Day 10, or before the TBI patient is discharged from the hospital, or ICU. It may not be completed on Day 11 or after the patient has been discharged.
Determine the effect of tAN on serum concentrations of inflammatory mediators in TBI patients.
Tidsramme: TBI patients will receive tAN stimulation once per day and will not exceed 10 days.

Every effort will be made to initiate tAN as soon after injury as possible in order to capture early postinjury data on the effectiveness of tAN and to inform the design of future studies.

TBI patients will receive tAN stimulation once per day and will not exceed 10 days.
Explore the effect of tAN on Blood Pressure
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Blood pressure (mmHg) will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Heart Rate
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Heart rate (bpm) will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Respiratory Rate (and ventilator settings and use of noninvasive oxygenation and ventilation if applicable)
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Respiratory rate (bpm) will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Temperature
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Temperature (°C/°F) will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Intracranial pressure
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Intracranial pressure (mmHg) will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Brain Tissue Oxygen Tension (PbtO2)
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Brain Tissue Oxygen Tension (mmHg) will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Glasgow Coma Scale (GCS) (and any sedatives or analgesics that could affect neurological assessment)
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

GCS (and any sedatives or analgesics that could affect neurological assessment) will be checked twice daily, pre-tAN and 30 minutes post-tAN. Scale from 3 to 15, where 3 represents deep unconsciousness and 15 indicates full consciousness.

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Pupillary Diameter
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Pupillary Diameter (mm) will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.
Explore the effect of tAN on Neurological Pupil index (NPi) via pupillometry
Tidsramme: Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Neurological Pupil index (NPi) via pupillometry dimensionless index, typically ranging from 0 to 5. This will be checked twice daily, pre-tAN and 30 minutes post-tAN

Data will be collected upon consent, twice daily from Day 1 to Day 10, or until the patient is discharged from the hospital. Data will not be collected past 10 days.

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Alex Valadka, MD, University of Texas Southwestern Medical Center

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

11. februar 2025

Primær fullføring (Antatt)

11. februar 2027

Studiet fullført (Antatt)

11. februar 2027

Datoer for studieregistrering

Først innsendt

29. mai 2024

Først innsendt som oppfylte QC-kriteriene

14. juni 2024

Først lagt ut (Faktiske)

21. juni 2024

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

30. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

28. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Ja

produkt produsert i og eksportert fra USA

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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