CompletedNot Applicable

Bihemispheric Transcranial Direct Current Stimulation* on Speech Fluency

Turkey (Türkiye)36 participantsStarted 2024-01-23

Plain-language summary

It will be determined whether bihemispheric stimulation (anodal to the left IFG and cathodal to the right IFG) is used with fluency-facilitating conditions for 5 consecutive days in individuals with stuttering and whether there is a difference in terms of the effects seen in speech fluency compared to the sham condition.

Who can participate

Age range

18 Years – 60 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * developmental stuttering * age between 18 and 60 years * right hand dominant Exclusion Criteria: * history of seizures, head trauma, hearing problems, cochlear implant, intracranial metal implantation, medications that affects the central nervous system, implanted neurostimulators, cardiac pacemakers, or medication infusion devices * any speech and language disorder other than developmental stuttering * neurological or psychiatric disorders, brain surgery, tumours, neurodevelopmental disorders, or attention deficit hyperactivity disorder

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Stuttered Syllables in Passage Reading (Change in the Percentage of Stuttered Syllables After 5 Days of Intervention From Baseline)

Timeframe: immediately before and immediately after the stimulation on each day of the 5-day intervention, and at 1 week after the end of the intervention.

Stuttered Syllables in Passage Reading (Change From Baseline in Percentage of Disfluent Syllables 1 Week After Intervention)

Timeframe: immediately before and immediately after the stimulation on each day of the 5-day intervention, and at 1 week after the end of the intervention.

Stuttered Syllables in Conversation (Change in the Percentage of Stuttered Syllables After 5 Days of Intervention From Baseline)

Timeframe: immediately before and immediately after the stimulation on each day of the 5-day intervention, and at 1 week after the end of the intervention.

Stuttered Syllables in Conversation (Change From Baseline in Percentage of Disfluent Syllables 1 Week After Intervention)

Timeframe: immediately before and immediately after the stimulation on each day of the 5-day intervention, and at 1 week after the end of the intervention.

Trial details

NCT IDNCT06278233

SponsorBiruni University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2024-06-30

Results submitted2025-03-11

View on ClinicalTrials.gov More Stuttering, Adult trials