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ClinicalTrials.gov public records Last synced May 21, 2026, 10:58 PM EDT

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

Showing 25–37 of 13 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Phonology Impairment Clear all
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis, Neuromuscular Disease, Stroke, Tetraplegia/Tetraparesis, Cervical Spinal Cord Injury, Dysarthria
Interventions
Connexus Brain-Computer Interface
Device
Lead sponsor
Paradromics
Industry
Eligibility
22 Years to 75 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
3
States / cities
Sacramento, California • Boston, Massachusetts • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced May 21, 2026, 10:58 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Tetraplegia/Tetraparesis, Quadriplegia, Cervical Spinal Cord Injury, Amyotrophic Lateral Sclerosis, Quadriplegia/Tetraplegia, Tetraplegic; Paralysis, Stroke
Interventions
N1 Implant, R1 Robot
Device
Lead sponsor
Neuralink Corp
Industry
Eligibility
22 Years to 75 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 3, 2025 · Synced May 21, 2026, 10:58 PM EDT
Not listed No phase listed Observational
View directory record Official record
Conditions
Parkinson Disease, Dysarthria
Interventions
Not listed
Lead sponsor
Jeremy Greenlee
Other
Eligibility
21 Years to 84 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced May 21, 2026, 10:58 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Speech Impairment, Speech Disorder
Interventions
Voiceitt
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
13 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced May 21, 2026, 10:58 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Dysarthria, Hypokinetic
Interventions
Listener Training
Behavioral
Lead sponsor
Utah State University
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
2
States / cities
Tallahassee, Florida • Logan, Utah
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced May 21, 2026, 10:58 PM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Combined speech and exercise intervention, Health education
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years to 89 Years
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced May 21, 2026, 10:58 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
ALS (Amyotrophic Lateral Sclerosis), ALS - Amyotrophic Lateral Sclerosis
Interventions
Isometric Lingual Strength Exercises
Procedure
Lead sponsor
Nova Southeastern University
Other
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Davie, Florida
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced May 21, 2026, 10:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Speech Therapy, Language Disorders in Children, Articulation Disorders in Children, Communication Disorder, Childhood, Pediatric, Mode of Therapy, Frequency of Therapy
Interventions
Speech Therapy
Behavioral
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
18 Months to 16 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced May 21, 2026, 10:58 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Developmental Articulation Disorder, Speech Disorder, Stuttering
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1996
U.S. locations
2
States / cities
College Park, Maryland • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced May 21, 2026, 10:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis, Parkinson Disease
Interventions
Phonetic complexity effects on speech motor performance
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
19 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
2
States / cities
Fairway, Kansas • Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated May 16, 2022 · Synced May 21, 2026, 10:58 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Parkinson Disease, REM Sleep Behavior Disorder
Interventions
Speech assessment, Routine clinical assessment
Other
Lead sponsor
Czech Technical University in Prague
Other
Eligibility
50 Years to 80 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 8, 2019 · Synced May 21, 2026, 10:58 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cerebellar Ataxia, Dysarthria, Healthy
Interventions
MRI, TMS, Speech-motor behavioral testing
Diagnostic Test · Device · Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 75 Years
Enrollment
660 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2030
U.S. locations
3
States / cities
Berkeley, California • San Francisco, California • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced May 21, 2026, 10:58 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Digital recording of speech and swallow sounds using the Beiwe Digital Health App on a personal smartphone, Modified Barium Swallow Study (MBSS), Speech Intelligibility Test (SIT), SIT Scoring
Device · Radiation · Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced May 21, 2026, 10:58 PM EDT