Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 25, 2026, 8:45 PM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Phonation Disorder Clear all
Completed Phase 1 Interventional

Dextromethorphan to Treat Patients With Voice Spasms

NCT00055549
View directory record Official record
Conditions
Voice Disorders
Interventions
Dextromethorphan, Lorazepam
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 80 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 25, 2026, 8:45 PM EDT
Recruiting Not applicable Interventional

Voice Therapy Per the Rehabilitation Treatment Specification System

NCT06152627
View directory record Official record
Conditions
Muscle Tension Dysphonia
Interventions
Standard of care voice therapy with novice clinician RTSS-Voice documentation, Standard of care voice therapy with expert clinician RTSS-Voice documentation
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
14 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
5
States / cities
Atlanta, Georgia • Boston, Massachusetts • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Sodium Oxybate in Spasmodic Dysphonia and Voice Tremor

NCT03292458
View directory record Official record
Conditions
Spasmodic Dysphonia, Voice Tremor
Interventions
Sodium Oxybate
Drug
Lead sponsor
Kristina Simonyan
Other
Eligibility
21 Years to 80 Years
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 29, 2025 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Effects of Octanoic Acid for Treatment of Essential Voice Tremor

NCT01864525
View directory record Official record
Conditions
Essential Voice Tremor, Vocal Tremor, Voice Tremor, Essential Tremor of Voice
Interventions
Octanoic acid, Inactive capsule
Drug
Lead sponsor
Syracuse University
Other
Eligibility
21 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Aug 19, 2018 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Post-operative Sore Throat as Determined by Endotracheal Tube Inflation Technique

NCT01305265
View directory record Official record
Conditions
Post Operative Sore Throat, Dysphagia, Hoarseness
Interventions
cuff manometer
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 25, 2014 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Intensive Versus Traditional Voice Therapy

NCT03129880
View directory record Official record
Conditions
Dysphonia
Interventions
Weekly Voice Therapy, Intensive Voice Therapy
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 15, 2024 · Synced Sep 25, 2026, 8:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Clinical Validation of DystoniaNet Deep Learning Platform for Diagnosis of Isolated Dystonia

NCT05317390
View directory record Official record
Conditions
Dystonia, Drug Induced Dystonia, Parkinson Disease, Essential Tremor, Dyskinesias, Myoclonus, Tic Disorders, Torticollis, Ulnar Nerve Entrapment, Temporomandibular Joint Disorders, Dysphonia
Interventions
DystoniaNet-based diagnosis of isolated dystonia
Diagnostic Test
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 25, 2026, 8:45 PM EDT
Withdrawn Phase 2 Interventional

Laryngeal Vibro-tactile Stimulation as a Non-invasive Symptomatic Treatment for Spasmodic Dysphonia

NCT05467228
View directory record Official record
Conditions
Adductor Spasmodic Dysphonia, Abductor Spastic Dysphonia, Laryngeal Dystonia
Interventions
vibro-tactile stimulation (VTS)
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Sep 25, 2026, 8:45 PM EDT
Recruiting No phase listed Observational

Imaging Genetics of Laryngeal Dystonia

NCT03042975
View directory record Official record
Conditions
Laryngeal Dystonia, Unaffected Relatives of Laryngeal Dystonia Patients, Voice Tremor, Muscle Tension Dysphonia
Interventions
MRI, Blood draw
Other · Procedure
Lead sponsor
Kristina Simonyan
Other
Eligibility
Not listed
Enrollment
410 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Effects of Vocal Exercises for Spasmodic Dysphonia

NCT03349086
View directory record Official record
Conditions
Adductor Spasmodic Dysphonia
Interventions
Voice Exercise
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years to 70 Years · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 22, 2019 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Treatment for Teachers With Vocal Fatigue

NCT04486989
View directory record Official record
Conditions
Vocal Fatigue, Treatment
Interventions
Cardiovascular Conditioning Protocol, Voice Production Exercises
Behavioral · Other
Lead sponsor
East Tennessee State University
Other
Eligibility
21 Years to 60 Years · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Johnson City, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Biofeedback vs Laryngeal Control Therapy in Management of Paradoxical Vocal Fold Motion

NCT05770518
View directory record Official record
Conditions
Paradoxical Vocal Fold Motion, Vocal Cord Dysfunction
Interventions
Biofeedback, Laryngeal control therapy (LCT)
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Sep 25, 2026, 8:45 PM EDT
Terminated Not applicable Interventional

Quantifying Effects of Treatment of Pediatric Dysphonia

NCT00237679
View directory record Official record
Conditions
Voice Disorders, Gastroesophageal Reflux
Interventions
Neuromuscular Electrical Stimulation, Unstimulated
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
6 Years to 11 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 13, 2015 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional Results available

Early Speech With One-Way Speaking Valve in Tracheostomy Patients

NCT03008174
View directory record Official record
Conditions
Respiratory Failure, Speech, Aphonia
Interventions
Early one-way speaking valve (OWSV) assessment
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 22, 2020 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Correlation Between Montreal Cognitive Assessment and Voice Therapy Outcomes in the Aging Treatment- Seeking Population

NCT05187910
View directory record Official record
Conditions
Cognitive Impairment, Voice Disorders, Voicebox Disorders, Cognitive Decline, Swallowing Disorder
Interventions
Speech Therapy, Swallowing Therapy, Upper Airway Therapy
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
60 Years to 110 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
4
States / cities
San Francisco, California • Atlanta, Georgia • New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 25, 2023 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Dysphonia, Distress, and Perceived Control: Technology Based Assessment and Intervention

NCT03576365
View directory record Official record
Conditions
Functional Dysphonia, Voice Disorders, Dysphonia
Interventions
VOICE Intervention Arm, Information-Only Arm
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
2
States / cities
Maple Grove, Minnesota • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 9, 2025 · Synced Sep 25, 2026, 8:45 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Immersive Virtual Reality Meditation in Voice Therapy

NCT07176013
View directory record Official record
Conditions
Voice Disorders
Interventions
Voice therapy, Meditation, Virtual Reality
Behavioral · Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 25, 2026, 8:45 PM EDT
Withdrawn Not applicable Interventional

Phonation Therapy to Improve Symptoms and Lung Physiology in Patients Referred for Pulmonary Rehabilitation

NCT05621967
View directory record Official record
Conditions
COVID-19
Interventions
Tonation Breathing Techniques, Music Driven Vocal Exercises, Silent Breathing
Behavioral
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional Results available

Efficacy of a Semi-occluded Mask in the Treatment of Patients With Voice Disorders

NCT03410797
View directory record Official record
Conditions
Voice and Resonance Disorders, Vocal Fold Polyp, Vocal Cord Cyst, Vocal Cord Polyp, Atrophy of Vocal Cord
Interventions
Inclusion of semi-occluded mask in voice therapy
Device
Lead sponsor
Jacqueline Gartner-Schmidt
Other
Eligibility
18 Years to 60 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 4, 2021 · Synced Sep 25, 2026, 8:45 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Improving Efficacy of Voice Therapy Concepts Via Telepractice and Mobile App Technology

NCT05220982
View directory record Official record
Conditions
Voice Disorders
Interventions
Conversation Training Therapy, Global Voice Prevention and Therapy Model, Modified Conversation Training Therapy, Modified Global Voice Prevention and Therapy Model
Behavioral
Lead sponsor
West Chester University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
West Chester, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Investigation of the Role of Steroids in Enhancing Voice Therapy Outcomes

NCT02286960
View directory record Official record
Conditions
Dysphonia
Interventions
Steroid, Lactose Pills
Drug · Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Sep 25, 2026, 8:45 PM EDT
Completed No phase listed Observational

LMA Cuff Pressure and LMA-induced Complications

NCT01385969
View directory record Official record
Conditions
Sore Throat, Dysphagia, Dysphonia
Interventions
Standard inflation of LMA cuff, Pressure check with syringe recoil, Pressure check by pressure transducer
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 99 Years
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
Gainesville, Florida • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 5, 2015 · Synced Sep 25, 2026, 8:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Mapping of Voice Control

NCT00066911
View directory record Official record
Conditions
Voice Disorders
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
20 Years to 70 Years
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 25, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Assessing the Effects of Patient Self-Rating of Voice Quality on Voice Therapy Attendance and Outcomes

NCT05237648
View directory record Official record
Conditions
Dysphonia
Interventions
Online Voice quality education module, Vocal hygiene module
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 27, 2025 · Synced Sep 25, 2026, 8:45 PM EDT