NCT07179848

Brief Summary

The goal of this clinical trial is to validate if temporal interference brain stimulation (TIBS) is safe in healthy volunteers aged 20 to 65. The main questions it aims to answer are:

  • Is it safe to apply TIBS intervention to the left hippocampus in healthy participants?
  • Is it safe to apply TIBS intervention to the left insula in healthy participants?
  • Is it safe to apply TIBS intervention to the left anterior cingulate cortex in healthy participants?
  • Is it safe to apply TIBS intervention to the right inferior frontal cortex in healthy participants? Participants will:
  • Be Randomly allocated to either sham-first group or treat first-group, stratified by stimulated brain region, following a crossover-controlled experimental design
  • Complete baseline cognitive evaluations and mental status assessments, and undergo a baseline MRI scan on the same day
  • Receive stimulation for 5 consecutive days, followed by a 2-days washout period, then complete the remaining 5 days of stimulation.
  • Complete post-intervention cognitive evaluations and mental status assessments, and undergo a post-intervention MRI scan on the same day

Trial Health

77
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P75+ for phase_1

Timeline
4mo left

Started Feb 2025

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 Progress75%
Feb 2025Oct 2026

Study Start

First participant enrolled

February 26, 2025

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

August 28, 2025

Completed
21 days until next milestone

First Posted

Study publicly available on registry

September 18, 2025

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2026

Last Updated

February 9, 2026

Status Verified

February 1, 2026

Enrollment Period

1.6 years

First QC Date

August 28, 2025

Last Update Submit

February 5, 2026

Conditions

Keywords

HippocampusTemporal Interference StimulationInsulaAnterior Cingulate CortexInferior Frontal Cortex

Outcome Measures

Primary Outcomes (6)

  • Changes in NRS related to intervention

    Numeric rating scale (NRS) will be used to evaluate the side effects, pain intensity, and other adverse events potentially related to the intervention, at baseline, during stimulation, immediately after each session, and at follow-up.

    Baseline (before each stimulation session), midpoint during each session, immediately after each stimulation for 10 sessions (approximately 2 weeks), and 1 month after completion of all sessions.

  • Changes in VAS related to intervention

    Visual analog scale (VAS) will be used to evaluate the side effects, pain intensity, and other adverse events potentially related to the intervention, at baseline, during stimulation, immediately after each session, and at follow-up.

    Baseline (before each stimulation session), midpoint during each session, immediately after each stimulation for 10 sessions (approximately 2 weeks), and 1 month after completion of all sessions.

  • Changes in MMSE from baseline to post-intervention

    Mini-Mental State Examination (MMSE) will be administered to evaluate cognitive function approximately 1 week before the first intervention and 1 week after the last intervention. Cognitive function will be considered normal if the MMSE score is greater than 24.

    Approximately 1 week prior to the first stimulation session and approximately 1 week following the last stimulation session

  • Changes in BAI from baseline to post-intervention

    Beck Anxiety Inventory (BAI) will be administered to evaluate the mental status approximately 1 week before the first intervention and 1 week after the last intervention. Mental status will be considered stable if both BAI and BDI are less than 13.

    Approximately 1 week prior to the first stimulation session and approximately 1 week following the last stimulation

  • Changes in BDI from baseline to post-intervention

    Beck Depression Inventory (BDI) will be administered to evaluate the mental status approximately 1 week before the first intervention and 1 week after the last intervention. Mental status will be considered stable if both BAI and BDI are less than 13.

    Approximately 1 week prior to the first stimulation session and approximately 1 week following the last stimulation

  • Changes in MRI from baseline to post-intervention

    T1-weighted magnetic resonance imaging (T1-weighted MRI) and resting-state functional magnetic resonance imaging (resting-state fMRI) will be acquired to evaluate structural and functional brain alterations potentially related to the intervention. Imaging will be performed approximately 1 week before the first intervention and 1 week after the last intervention.

    Approximately 1 week prior to the first stimulation session and approximately 1 week following the last stimulation

Secondary Outcomes (2)

  • Changes in WCST score from baseline to post-intervention

    Approximately 1 week prior to the first stimulation session and approximately 1 week following the last stimulation session

  • Changes in verbal fluency test from baseline to post-intervention

    Approximately 1 week prior to the first stimulation session and approximately 1 week following the last stimulation session

Study Arms (8)

Hippocampus - Treatment first

EXPERIMENTAL
Device: Temporal Interference Stimulation - Treatment first

Hippocampus - Sham first

SHAM COMPARATOR
Device: Temporal Interference Stimulation - Sham first

Insula - Treatment first

EXPERIMENTAL
Device: Temporal Interference Stimulation - Treatment first

Insula - Sham first

SHAM COMPARATOR
Device: Temporal Interference Stimulation - Sham first

Anterior cingulate cortex - Treatment first

EXPERIMENTAL
Device: Temporal Interference Stimulation - Treatment first

Anterior cingulate cortex - Sham first

SHAM COMPARATOR
Device: Temporal Interference Stimulation - Sham first

Inferior frontal cortex - Treatment first

EXPERIMENTAL
Device: Temporal Interference Stimulation - Treatment first

Inferior frontal cortex - Sham first

SHAM COMPARATOR
Device: Temporal Interference Stimulation - Sham first

Interventions

Receive treatment stimulation for 5 consecutive days, followed by a 2-days washout period, then complete the remaining 5 days of sham stimulation

Anterior cingulate cortex - Treatment firstHippocampus - Treatment firstInferior frontal cortex - Treatment firstInsula - Treatment first

Receive sham stimulation for 5 consecutive days, followed by a 2-days washout period, then undergo 5 days of treatment stimulation

Anterior cingulate cortex - Sham firstHippocampus - Sham firstInferior frontal cortex - Sham firstInsula - Sham first

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Healthy adults from the community
  • Age between 20 and 65 years old
  • No diagnosis of severe psychiatric disorders
  • No family history of psychiatric diseases

You may not qualify if:

  • Age below 20 years old or above 65 years old
  • Currently prescribed any medication
  • Diagnosis of psychiatric disorders (e.g., Major Depressive Disorder, Bipolar Disorder, Schizophrenia)
  • Diagnosis of neurological disorders (e.g., Dementia, Stroke, Parkinson's disease)
  • History of substance abuse
  • Diagnosis of cancer or malignant tumors
  • Chronic kidney failure or undergoing hemodialysis
  • Pregnant or breastfeeding
  • Severe arrythmia, presence of pacemaker, or metal implants in the brain
  • Claustrophobia
  • History or family history of seizure
  • History of syncope
  • Organic brian disease, brian trauma, or history of neurosurgery
  • Received electroconvulsive therapy or repetitive transcranial magnetic stimulation within the past month
  • Skin disorders (e.g., dermatitis, psoriasis, eczema)
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Taipei Veterans General Hospital

Taipei, 112, Taiwan

RECRUITING

Central Study Contacts

Albert Chih-Chieh Yang, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 28, 2025

First Posted

September 18, 2025

Study Start

February 26, 2025

Primary Completion (Estimated)

October 1, 2026

Study Completion (Estimated)

October 1, 2026

Last Updated

February 9, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Due to the limited sample size, the risk of participant re-identification may be higher.

Locations