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ClinicalTrials.gov public records Last synced May 22, 2026, 4:43 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–23 of 23 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Fluency Disorder Clear all
Not yet recruiting Phase 2 Interventional
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 May 22, 2026, 4:43 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Parkinson Disease
Interventions
STN DBS 10Hz, STN DBS 130Hz, STN DBS off
Device
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced May 22, 2026, 4:43 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Normal Non-fluency
Interventions
Olanzapine
Drug
Lead sponsor
Michael Rickels
Other
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 18, 2015 · Synced May 22, 2026, 4:43 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers
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 May 22, 2026, 4:43 AM EDT
Active, not recruiting Not applicable Interventional
View directory record Official record
Conditions
Stuttering, Adult
Interventions
Altered Auditory Feedback
Device
Lead sponsor
Massachusetts Institute of Technology
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced May 22, 2026, 4:43 AM EDT
Terminated Not applicable Interventional Results available
View directory record Official record
Conditions
Stuttering, Developmental
Interventions
Anodal tDCS, Fluency training, Sham tDCS
Device · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 28, 2021 · Synced May 22, 2026, 4:43 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Childhood-Onset Fluency Disorder
Interventions
NOE-105, Placebo
Drug
Lead sponsor
Noema Pharma AG
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
6
States / cities
Bellflower, California • Jacksonville, Florida • Orlando, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced May 22, 2026, 4:43 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Computer + Fluency, Computer Only, Treatment as Usual
Interventions
Computer + Fluency, Computer Only, Treatment as Usual
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 16, 2017 · Synced May 22, 2026, 4:43 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Post-stroke Aphasia
Interventions
TNM Device
Device
Lead sponsor
Scion NeuroStim
Industry
Eligibility
18 Years to 75 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced May 22, 2026, 4:43 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Autism Spectrum Disorders, Autism
Interventions
Not listed
Lead sponsor
The Vista School
Other
Eligibility
8 Months to 6 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 17, 2012 · Synced May 22, 2026, 4:43 AM EDT
Completed Phase 2 Interventional
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 May 22, 2026, 4:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Apraxia of Speech, Aphasia, Cerebrovascular Accident
Interventions
Normal Auditory Feedback, Masked Auditory Feedback, Altered Auditory Feedback
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 11, 2016 · Synced May 22, 2026, 4:43 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Alzheimer's Disease, Aphasia, Dementia
Interventions
Repetitive Transcranial Magnetic Coil Stimulation (rTMS)
Device
Lead sponsor
The New York Memory Services
Other
Eligibility
50 Years to 90 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 27, 2014 · Synced May 22, 2026, 4:43 AM EDT
Completed No phase listed Observational
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 May 22, 2026, 4:43 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers
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 May 22, 2026, 4:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Aphasia, Apraxia of Speech
Interventions
Unison speech (vs. solo), Metrical timing (vs. conversational)
Behavioral
Lead sponsor
MGH Institute of Health Professions
Other
Eligibility
18 Years to 80 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 17, 2025 · Synced May 22, 2026, 4:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Normal Non-fluency, Cataract, Aphakic Eye, Eyes With Corneal Abnormality
Interventions
Not listed
Lead sponsor
Nidek Co. LTD.
Industry
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 27, 2013 · Synced May 22, 2026, 4:43 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Stroke
Interventions
Dexedrine, Active tDCS, Speech Therapy, Placebo, Sham tDCS
Drug · Device · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 2, 2018 · Synced May 22, 2026, 4:43 AM EDT
Enrolling by invitation Phase 1 Interventional
View directory record Official record
Conditions
Attention, Visual Perceptual Weakness, Social Behavior, Fluency Disorder, EEG With Periodic Abnormalities
Interventions
tDCS or Transcranial Direct Current Stimulation, Risperidone
Device · Drug
Lead sponsor
Spanish Foundation for Neurometrics Development
Other
Eligibility
6 Years to 11 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced May 22, 2026, 4:43 AM EDT
Not listed Phase 2Phase 3 Interventional
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 May 22, 2026, 4:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Brain Disorder, Healthy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced May 22, 2026, 4:43 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Medication Adherence, Hypertension
Interventions
Scorecard, Social norms, Messenger effects, Processing fluency
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
65 Years to 79 Years
Enrollment
65,177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced May 22, 2026, 4:43 AM EDT
Recruiting Not applicable Interventional
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 May 22, 2026, 4:43 AM EDT