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Brain zaps for stuttering? tiny trial tests rTMS

NCT ID NCT07389694

Symptom relief Sponsor: Kansas State University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 06, 2026 · Updated 2 times

Summary

This pilot study tests whether repeated transcranial magnetic stimulation (rTMS) can reduce stuttering in adults. Two participants will receive 10 rTMS sessions, and researchers will measure changes in brain activity and speech. The goal is to see if this non-invasive treatment can ease stuttering symptoms.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 10 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2026

Expected to finish

Dec 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age from 18 to 65 years * Self-identifies as a person who currently stutters * Right-handed or left-handed * Normal hearing and (corrected) vision * Able to understand and give informed consent * Monolingual English speaker Exclusion Criteria: * Cardiac pacemaker or pacemaker wires; neurostimulators; implanted pumps * Metal in the body (rods, plates, screws, shrapnel, dentures, IUD) or metallic particles in the eye * Facial tattoos * Not having medical insurance * Surgical clips in the head or previous neurosurgery * Any magnetic particles in the body * Cochlear implants * Prosthetic heart valves * Epilepsy or any other type of seizure history * History of significant head trauma (i.e., extended loss of consciousness, neurological sequelae) * Known structural brain lesions * Pre-existing speech, language, or neurological disorder (except for stuttering) * Significant other disease (heart disease, malignant tumors, mental disorders) * Significant claustrophobia; Ménière's disease * Women who are trying to get pregnant and sexually active women (of reproductive age) not on a reliable contraceptive * Pregnancy, breastfeeding * Medications increasing the risk for seizures * Non-prescribed drug use * Use of recreational drugs such as medical marijuana * Failure to perform the behavioral tasks or neuropsychological evaluation tests * Prisoners

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Conditions

The condition(s) this trial relates to.

stutter disorder Stuttering

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Stuttering, adult

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Bluemont Hall, Department of Psychological Sciences, Kansas State University

    RECRUITING

    Manhattan, Kansas, 66506-7500, United States

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