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Showing 1–24 of 35 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Stuttering Clear all
Completed No phase listed Observational

Genetic Linkage Studies of Stuttering

NCT00001604
View directory record Official record
Conditions
Stuttering
Interventions
Not listed
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH
Eligibility
6 Years and older
Enrollment
3,044 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 17, 2024 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional

Using Transcranial Magnetic Stimulation to Treat Stuttering

NCT07389694
View directory record Official record
Conditions
Stuttering, Adult
Interventions
Transcranial Magnetic Stimulation
Device
Lead sponsor
Kansas State University
Other
Eligibility
18 Years to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

The Effects of Tactile Speech Feedback on Stuttering Frequency

NCT01315730
View directory record Official record
Conditions
Stuttering
Interventions
Tactile Stimulation
Device
Lead sponsor
University of Mississippi, Oxford
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
University, Mississippi
Source: ClinicalTrials.gov public record
Updated May 11, 2014 · Synced Jul 22, 2026, 1:07 AM EDT
Completed Not applicable Interventional

Logoneurosis. Complete Remission. Clinical Document No. 001. Family System CITADEL 2060: METHODOLOGY "VOICE OF SLEEP MAMABEE 2026-2085"

NCT07628114
View directory record Official record
Conditions
Logoneurosis
Interventions
Voice of Sleep MamaBee 2026-2085 Training Modules: Systemic work with brain neurons through training modules at the border of sleep. Restoration of the nervous system core in real time.
Behavioral
Lead sponsor
Pisareva Citadel Group LLC
Other
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Auditory Prediction and Error Evaluation in the Speech of Individuals Who Stutter

NCT06181149
View directory record Official record
Conditions
Healthy Subjects, Stuttering, Developmental
Interventions
Delaying speech initiation, Auditory errors and pre-speech auditory modulation, Contributions of the speech premotor cortex to pre-speech auditory modulation, Delaying auditory feedback
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
3 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
2
States / cities
Tempe, Arizona • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 20, 2025 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Development of Stuttering in Young Children

NCT06578416
View directory record Official record
Conditions
Stuttering, Stuttering, Childhood, Stuttering, Developmental
Interventions
Standardized assessments of speech and language abilities
Diagnostic Test
Lead sponsor
Michigan State University
Other
Eligibility
3 Years to 6 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Investigating Speech Sequencing in Neurotypical Speakers and Persons With Disordered Speech

NCT05437159
View directory record Official record
Conditions
Stuttering, Developmental, Aphasia, Primary Progressive
Interventions
Learning of non-native phoneme combinations: 6 training sessions, Learning of non-native phoneme combinations: 1 training session, Learning of novel multisyllabic nonwords, Anodal tDCS, Sham tDCS, Learning of non-native phoneme combinations: 8 training sessions
Behavioral · Device
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
6 Years and older
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
3
States / cities
Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Suspended Phase 3 Interventional Accepts healthy volunteers

A Randomized, Placebo-Controlled Study to Evaluate the Efficacy and Tolerability of Asenapine With Flexible Dosing From 5mg to 20mg in Adults With Developmental Stuttering

NCT01684657
View directory record Official record
Conditions
Stuttering
Interventions
Asenapine
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Network Connectivity and Temporal Processing in Adolescents Who Stutter

NCT05286151
View directory record Official record
Conditions
Stuttering, Childhood, Stuttering
Interventions
Rhythm discrimination
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
9 Years to 13 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 22, 2025 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Investigating Individual Differences in Speech Motor Skills in Neurotypical Speakers and Persons With Disordered Speech

NCT07459803
View directory record Official record
Conditions
Stuttering, Developmental, Dyslexia, Healthy Participants
Interventions
Unpredictable auditory feedback perturbation: 2 behavioral sessions, Unpredictable auditory feedback perturbation during tCS: 3 behavioral sessions, Sustained F1 auditory feedback perturbation, Sustained F0 auditory feedback perturbation, Reflexive somatosensory perturbation, Anodal tCS targeting pSTG and vSSC, Anodal tCS targeting left or right vPMC, Sham tCS targeting pSTG or vSSC, Sham tCS targeting left vPMC or right vPMC
Behavioral · Other
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years to 50 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Speech Signals in Stuttering

NCT05668923
View directory record Official record
Conditions
Stuttering, Childhood
Interventions
Speech sound stimulation
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
5 Years to 17 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
2
States / cities
Ann Arbor, Michigan • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional

Stuttering and Neuromodulation

NCT07222163
View directory record Official record
Conditions
Stuttering
Interventions
Soterix Medical 1x1 tDCS system, Speech therapy sessions
Device · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 28, 2025 · Synced Jul 22, 2026, 1:07 AM EDT
Not yet recruiting Phase 2 Interventional

Effects of Psilocybin on Speech Fluency, Struggle, and Brain Activity in People Who Stutter

NCT07296328
View directory record Official record
Conditions
Stuttering
Interventions
Psilocybin, Speech therapy
Drug · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional

Using Non-invasive Brain Stimulation to Explore Potential Treatments to Reduce Speech Errors in Adults Who Stutter

NCT07354139
View directory record Official record
Conditions
Stuttering, Fluency Disorder
Interventions
High - Definition Transcranial Direct Current Stimulation
Device
Lead sponsor
The University of Texas at Dallas
Other
Eligibility
22 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Richardson, Texas
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional

Transcranial Alternating Current Stimulation (tACS) in Stuttering

NCT06740968
View directory record Official record
Conditions
Stuttering, Adult, Stuttering, Childhood, Stuttering, Developmental
Interventions
transcranial alternating current stimulation (tACS)
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Jul 22, 2026, 1:07 AM EDT
Not listed Phase 2Phase 3 Interventional

Efficacy and Tolerability of Ecopipam in Adults With Childhood Onset Fluency Disorder (Stuttering).

NCT02909088
View directory record Official record
Conditions
Stuttering, Adult, Childhood-onset Fluency Disorder, Speech Disorders, Language Disorders, Communication Disorder
Interventions
Ecopipam 50mg, Ecopipam 100mg
Drug
Lead sponsor
Gerald Maguire, MD
Other
Eligibility
18 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2016 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional

Organization and Development of Motor Cortical Circuits for Speech Production in Stuttering

NCT07180628
View directory record Official record
Conditions
Stutter, Stuttering, Adult, Stuttering, Stuttering, Developmental
Interventions
Speech Production During functional magnetic resonance imaging (MRI)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Completed No phase listed Observational

Dopamine Function in Developmental Stuttering

NCT00024960
View directory record Official record
Conditions
Developmental Stuttering
Interventions
Not listed
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 1:07 AM EDT
Completed Phase 2 Interventional

EXPRESS: Examining Pagoclone for Persistent Developmental Stuttering Study

NCT00216255
View directory record Official record
Conditions
Persistent Developmental Stuttering
Interventions
Pagoclone, Placebo
Drug
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
16
States / cities
Peoria, Arizona • Orange, California • Riverside, California + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2012 · Synced Jul 22, 2026, 1:07 AM EDT
Completed Phase 2 Interventional

Effects of Ecopipam or Placebo in Adults With Stuttering (Speak Freely)

NCT04492956
View directory record Official record
Conditions
Childhood-Onset Fluency Disorder (Stuttering)
Interventions
Ecopipam, Placebo
Drug
Lead sponsor
Emalex Biosciences Inc.
Industry
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
9
States / cities
Riverside, California • Santa Ana, California • Jacksonville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2022 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Not applicable Interventional

Investigating Subcortical Contributions to Speech Sequencing in Deep Brain Stimulator Recipients

NCT07455760
View directory record Official record
Conditions
Parkinson's Disease (PD), Essential Tremor
Interventions
Phoneme sequence learning, Cessation and re-enabling of stimulation of the STN, Cessation and re-enabling of stimulation of the VIM thalamic nucleus, Multisyllabic sequence learning
Behavioral · Other
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Jul 22, 2026, 1:07 AM EDT
Completed Phase 2 Interventional

Safety and Efficacy Study of the Investigational Drug Pagoclone, in the Treatment of Persistent Developmental Stuttering (PDS)

NCT00239915
View directory record Official record
Conditions
Persistent Developmental Stuttering
Interventions
Pagoclone
Drug
Lead sponsor
Pharmacology Research Institute
Other
Eligibility
18 Years to 65 Years
Timeline
2005 – 2006
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated May 8, 2012 · Synced Jul 22, 2026, 1:07 AM EDT
Completed Phase 2Phase 3 Interventional

A Study to Assess the Efficacy and Safety of Pagoclone for Adults With Stuttering

NCT00830154
View directory record Official record
Conditions
Stuttering
Interventions
pagoclone, placebo
Drug · Other
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
18 Years to 80 Years
Enrollment
321 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 27, 2012 · Synced Jul 22, 2026, 1:07 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Dopamine and Sensorimotor Function in Stuttering

NCT07215884
View directory record Official record
Conditions
Stuttering, Adult
Interventions
Aripiprazole 10 MG, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Jul 22, 2026, 1:07 AM EDT