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Showing 1–13 of 13 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Developmental Phonological Disorder Clear all
Recruiting Phase 2 Interventional

Visual-acoustic Intervention With Service Delivery In-person and Via Telepractice Trial

NCT06517225
View directory record Official record
Conditions
Speech Sound Disorder
Interventions
Visual-acoustic biofeedback
Behavioral
Lead sponsor
New York University
Other
Eligibility
9 Years to 17 Years · Female only
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
3
States / cities
Bloomfield, New Jersey • New York, New York • Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2025 · Synced Jul 23, 2026, 6:17 PM EDT
Recruiting Not applicable Interventional

Measuring Aided Language Development

NCT06512168
View directory record Official record
Conditions
Down Syndrome, Cerebral Palsy, Apraxia of Speech, Speech Sound Disorder, Speech Disorders in Children, Speech and Language Disorder
Interventions
AAC Generative Language Intervention
Behavioral
Lead sponsor
University of Central Florida
Other
Eligibility
42 Months to 60 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Jul 23, 2026, 6:17 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Characteristics of Idiopathic Familial Speech Disorders

NCT00001551
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 Jul 23, 2026, 6:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Age-related Correlates of Treatment for Late-acquired Sounds

NCT03663972
View directory record Official record
Conditions
Speech Sound Disorder, Phonology Disorder, Phonology Impairment, Phonological Disorder, Articulation Disorders in Children, Developmental Phonological Disorder, Speech Disorders, Speech Delay, Articulation Disorders, Developmental
Interventions
articulation therapy, phonologic treatment
Behavioral
Lead sponsor
University of Wyoming
Other
Eligibility
4 Years to 8 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Laramie, Wyoming
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Jul 23, 2026, 6:17 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of Brain Activity During Speech Production and Speech Perception

NCT00004991
View directory record Official record
Conditions
Developmental Articulation Disorder, Stuttering
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
6 Years to 65 Years
Enrollment
411 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 23, 2026, 6:17 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Delineation of Sensorimotor Subtypes Underlying Residual Speech Errors

NCT03736213
View directory record Official record
Conditions
Speech Sound Disorder
Interventions
Visual-acoustic biofeedback, Ultrasound biofeedback
Behavioral
Lead sponsor
New York University
Other
Eligibility
9 Years to 15 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
3
States / cities
Bloomfield, New Jersey • New York, New York • Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Dec 10, 2023 · Synced Jul 23, 2026, 6:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Framework For Linking Sequential Pattern Rules in DLD: Perception in Toddlers

NCT04531514
View directory record Official record
Conditions
Developmental Language Disorder, Speech Sound Disorder, Specific Language Impairment
Interventions
Sensitivity to phonological rules & referents OR: Toddlers, Sensitivity to phonological rules & referents FR: Toddlers
Other
Lead sponsor
Father Flanagan's Boys' Home
Other
Eligibility
19 Months to 36 Months
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 26, 2025 · Synced Jul 23, 2026, 6:17 PM EDT
Completed Phase 1 Interventional Results available

Comparing Traditional and Biofeedback Telepractice Treatment for Residual Speech Errors

NCT04625062
View directory record Official record
Conditions
Speech Sound Disorder
Interventions
Visual-acoustic biofeedback, Motor-based treatment
Behavioral
Lead sponsor
New York University
Other
Eligibility
9 Years to 15 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Bloomfield, New Jersey • Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Jul 23, 2026, 6:17 PM EDT
Completed Not applicable Interventional Results available

staRt: Enhancing Speech Treatment With Smartphone-delivered Biofeedback

NCT04474691
View directory record Official record
Conditions
Speech Sound Disorder
Interventions
Traditional articulation treatment, Visual-acoustic biofeedback
Behavioral
Lead sponsor
New York University
Other
Eligibility
8 Years to 15 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Jul 23, 2026, 6:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Framework For Linking Sequential Pattern Rules in DLD: Perception in Adults

NCT04996472
View directory record Official record
Conditions
Developmental Language Disorder, Speech Sound Disorder, Specific Language Impairment
Interventions
Sensitivity to phonological rules: Adults, Sensitivity to semantic category cues: Adults
Behavioral
Lead sponsor
Father Flanagan's Boys' Home
Other
Eligibility
18 Years to 30 Years
Enrollment
933 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
2
States / cities
Tucson, Arizona • Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 26, 2025 · Synced Jul 23, 2026, 6:17 PM EDT
Completed Not applicable Interventional Results available

Manipulating Linguistic Complexity to Improve Child Language Treatment Outcomes

NCT03977701
View directory record Official record
Conditions
Language Development Disorders, Speech Sound Disorder
Interventions
Phonological treatment, Morpheme treatment
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
3 Years to 6 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2023 · Synced Jul 23, 2026, 6:17 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Correcting Residual Errors With Spectral, Ultrasound, Traditional Speech Therapy

NCT03737318
View directory record Official record
Conditions
Speech Sound Disorder
Interventions
Biofeedback-ultrasound, Biofeedback--visual-acoustic, Traditional articulation treatment
Behavioral
Lead sponsor
New York University
Other
Eligibility
9 Years to 15 Years
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
2
States / cities
Bloomfield, New Jersey • Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced Jul 23, 2026, 6:17 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Developmental Framework For Linking Phonological And Morpho-syntactic Sequential Pattern Rules In DLD: Production

NCT04558541
View directory record Official record
Conditions
Developmental Language Disorder, Speech Sound Disorder, Specific Language Impairment
Interventions
Sensitivity to phonological rules, Sensitivity to semantic category cues.
Other
Lead sponsor
Father Flanagan's Boys' Home
Other
Eligibility
4 Years to 8 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
2
States / cities
Tucson, Arizona • Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 26, 2025 · Synced Jul 23, 2026, 6:17 PM EDT