NCT07155733

Brief Summary

This randomized controlled trial aims to investigate the effectiveness of transcutaneous vagus nerve stimulation (tVNS) and myofascial release exercises in patient wiht chronic subjective tinnitus. Participants will be randomly assigned into three groups: (1) tVNS group, (2) Myofascial exercise group, and (3) Control group receiving standart medical care. The primary outcome is change in tinnitus severity measured by the Tinnitus Handicap Inventory (THI). Secondary outcomes include tinnitus loudness Visual Analouge Scale for Tinnitus (VAS), sleep quality Pitsburgh Sleep Quality Index (PSQI) and audiometric findings.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
45

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not 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 Start

First participant enrolled

April 17, 2025

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

August 27, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

September 4, 2025

Completed
21 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 25, 2025

Completed
15 days until next milestone

Study Completion

Last participant's last visit for all outcomes

October 10, 2025

Completed
Last Updated

September 4, 2025

Status Verified

August 1, 2025

Enrollment Period

5 months

First QC Date

August 27, 2025

Last Update Submit

September 3, 2025

Conditions

Keywords

tinnituschronic tinnitussubjective tinnitusvagus nerve stimulationTranscutaneous Vagus Nerve Stimulation (tVNS)Auricular Vagus Nerve StimulationNeuromodulationMyofascial ReleasePhysical Therapy

Outcome Measures

Primary Outcomes (1)

  • Change in tinnitus severity

    Measured using the Tinnitus Handicap Inventory (THI), which assesses the impact of tinnitus on daily functioning.

    Baseline to post-intervention (3 weeks)

Secondary Outcomes (3)

  • Tinnitus Loudness

    Baseline to post-intervention (3 weeks)

  • Sleep quality

    Baseline to post-intervention (3 weeks)

  • Audiometric measures

    Baseline to post-intervention (3 weeks)

Study Arms (3)

Transcutaneous Vagus Nerve Stimulation

EXPERIMENTAL

10 sessions over 3 weeks; auricular stimulation of the vagus nerve using TENS; session duration 30 min.

Device: Transcutaneous Vagus Nerve StimulationOther: Standard medical treatment

Myofascial Exercise Group

EXPERIMENTAL

10 supervised sessions over 3 weeks; targeting cervical muscles.

Behavioral: Myofascial Release ExercisesOther: Standard medical treatment

Control Group

NO INTERVENTION

Standart Medical Care without additional inerventions

Interventions

Participants receive 10 sessions of transcutaneous vagus nerve stimulation over 3 weeks using a TENS device. stimulation is applied to the auricular branch of the vagus nerve (cymba conchae/tragus) for 30 minutes per session. Participants continue usual medical care. Parameters (frequency, pulse width, intencity) are standartized according to safety guidelines. This intervention specifically targets the auricular branch of the vagus nerve, distinguishing it from other device-based intervention such as conventional TENS for pain management or non-auricular vagus stimulation used in other studies.

Transcutaneous Vagus Nerve Stimulation

Participants receive 10 supervised session over 3 weeks focusing on myofascial release of cervical muscles. in addition to their usual medical management for tinnitus. Exercises are designed to reduse muscle tensionpotentially contributing to tinnitus. This intervention is distinct from general physical therapy or standart relaxation exercises beacause it specifically targets myofascial structures implicated in tinnitus pathophysiology.

Myofascial Exercise Group

Participants continue their usual medical management for tinnitus without additional interventions. This group serves as a control to compare the effects of tVNS and myofascial exercises. It differs from sham or placebo interventions used in oter studies because no active or stimalated treatment is provided.

Myofascial Exercise GroupTranscutaneous Vagus Nerve Stimulation

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of chronic subjective tinnitus (\>6 months)
  • Ability to understand and provide written informed consent
  • Willingness to comply with study procedures and intervention schedule
  • Resistant for medical treatment for subjective tinnitus
  • Impacted daily living by tinnitus

You may not qualify if:

  • Diagnoses such as auditory hallucinations, Meniere's disease, vestibular tumor, vertigo, or sudden hearing loss
  • Trauma or surgical interventions involving the neck, jaw, or head within the 6 months
  • Epilepsy or presence of a cardiac pacemaker (contraindication for tVNS)
  • History of acute psychiatric disorders
  • Use of ototoxic medications
  • Physical limitations that prevent participation in exercise interventions.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Necmettin Erbakan University Meram Faculty of Medicine

Konya, Meram, 42090, Turkey (Türkiye)

Location

Related Publications (2)

  • Rocha CB, Sanchez TG. Efficacy of myofascial trigger point deactivation for tinnitus control. Braz J Otorhinolaryngol. 2012 Dec;78(6):21-6. doi: 10.5935/1808-8694.20120028.

    PMID: 23306563BACKGROUND
  • Yakunina N, Nam EC. Direct and Transcutaneous Vagus Nerve Stimulation for Treatment of Tinnitus: A Scoping Review. Front Neurosci. 2021 May 28;15:680590. doi: 10.3389/fnins.2021.680590. eCollection 2021.

    PMID: 34122002BACKGROUND

Related Links

MeSH Terms

Conditions

Tinnitus

Condition Hierarchy (Ancestors)

Hearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Neslihan ALTUNTAŞ YILMAZ, PhD

    Necmettin Erbakan University Nezahat Kelesoglu Faculty of Health Sciences

    PRINCIPAL INVESTIGATOR
  • Mehmet Akif DUNDAR, PhD

    Necmettin Erbakan University

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
This is an open-label study. Both participants and treating clinicians are not blinded due to the nature of the interventions. Outcome assesor who scoring THI, recording VAS, PSQI is not blinded, those who scores audiometric outcomes are blinded to group assignment to reduce assesment bias.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is a three-arm, parallel group randomized controlled trial comparing the effects of transcutaneous vagus nerve stimulation (tVNS), myofascial release exercise, and standart medical care on chronic subjective tinnitus. Participants are randomly assigned to one of three groups and receive their assigned intervanetion to evaluate changes in tinnitus severity, sleep quality and audiometric measures.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Bsc

Study Record Dates

First Submitted

August 27, 2025

First Posted

September 4, 2025

Study Start

April 17, 2025

Primary Completion

September 25, 2025

Study Completion

October 10, 2025

Last Updated

September 4, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will share

Demographics, efficacy outcomes, safety data

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
12 months after study completion-5 years after completion
Access Criteria
Data available upon request to qualified researchers for scientific purposes. Requests should be sent to the Principal Investigator via the contact page below. Data will be shared after signing a data use agreement.
More information

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