NCT07000175

Brief Summary

Healthy participants will be included in this study by invitation and randomised into three groups. Participants in each group will receive bilateral transcutaneous vagus nerve stimulation with the same frequency, current transit time and current intensity. Heart rate variability will be measured over the chest in the first group, over the right arm in the second group and over the left arm in the third group. Then, the differences between the groups in heart rate variability parameters (time-dependent, frequency-dependent) will be compared. The aim of this study is to examine the differences between heart rate variability measurements measured at different sites.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
39

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2025

Shorter than P25 for not_applicable

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

First Submitted

Initial submission to the registry

May 23, 2025

Completed
7 days until next milestone

Study Start

First participant enrolled

May 30, 2025

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 2, 2025

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2026

Completed
16 days until next milestone

Study Completion

Last participant's last visit for all outcomes

February 15, 2026

Completed
Last Updated

July 14, 2025

Status Verified

July 1, 2025

Enrollment Period

8 months

First QC Date

May 23, 2025

Last Update Submit

July 11, 2025

Conditions

Keywords

Heart RatesVagus Nerves

Outcome Measures

Primary Outcomes (1)

  • Heart Rate Variability

    Heart rate variability will be measured with a 5-minute short measurement method over the chest, right arm and left arm.

    Baseline and after 20 minutes of treatment

Study Arms (3)

Measurement over the chest

ACTIVE COMPARATOR

Heart rate variability will be measured on the chest for 5 minutes before and after transcutaneous vagus nerve stimulation.

Device: Transcutaneous Auricular Vagus Nerve Stimulation

Measurement over the right arm

ACTIVE COMPARATOR

Heart rate variability will be measured on the right arm for 5 minutes before and after transcutaneous vagus nerve stimulation.

Device: Transcutaneous Auricular Vagus Nerve Stimulation

Measurement over the left arm

ACTIVE COMPARATOR

Heart rate variability will be measured on the left arm for 5 minutes before and after transcutaneous vagus nerve stimulation.

Device: Transcutaneous Auricular Vagus Nerve Stimulation

Interventions

Non-invasive transcutaneous vagus nerve stimulation with special earphones placed in the ear will be applied to the participants for 20 minutes and a single session.

Measurement over the chestMeasurement over the left armMeasurement over the right arm

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • years of age or older
  • To know how to read and write Turkish
  • Not having any acute or chronic disease

You may not qualify if:

  • Previous application of any neuromodulation method
  • Smoking or alcohol use
  • Use of any supplementary medication

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Avrasya University Physical Therapy Laboratory

Trabzon, Ortahisar, 61080, Turkey (Türkiye)

RECRUITING

Related Publications (1)

  • Gillinov S, Etiwy M, Wang R, Blackburn G, Phelan D, Gillinov AM, Houghtaling P, Javadikasgari H, Desai MY. Variable Accuracy of Wearable Heart Rate Monitors during Aerobic Exercise. Med Sci Sports Exerc. 2017 Aug;49(8):1697-1703. doi: 10.1249/MSS.0000000000001284.

    PMID: 28709155BACKGROUND

Study Officials

  • Ramazan Cihad Yılmaz, Ph.D.

    Igdir University

    STUDY DIRECTOR

Central Study Contacts

Alper Percin, Ph.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Masking Details
Single blinding (investigator blinding)
Purpose
SCREENING
Intervention Model
PARALLEL
Model Details: A modelling will be created in which the same intervention will be applied to the three groups but the evaluations will be made differently.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Asst. Prof.

Study Record Dates

First Submitted

May 23, 2025

First Posted

June 2, 2025

Study Start

May 30, 2025

Primary Completion

January 30, 2026

Study Completion

February 15, 2026

Last Updated

July 14, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations