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Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Voice Tremor Clear all
Completed No phase listed Observational Accepts healthy volunteers

Clinical and Physiological Studies of Tremor Syndromes

NCT03027310
View directory record Official record
Conditions
Parkinson Disease, Dystonia, Essential Tremor
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 22, 2026, 5:01 AM 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 Jul 22, 2026, 5:01 AM EDT
Active, not recruiting Not applicable Interventional

Evaluating the Efficacy of Voice Therapy for Neurogenic Voice Disorders

NCT07474740
View directory record Official record
Conditions
Speakers With Neurogenic Voice Disorders
Interventions
Breathy voice
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Jul 22, 2026, 5:01 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Characterization of Clinical Phenotypes of Laryngeal Dystonia and Voice Tremor

NCT05150106
View directory record Official record
Conditions
Laryngeal Dystonia, Spasmodic Dysphonia, Tremor
Interventions
Clinical assessments of laryngeal function
Other
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years to 80 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Jul 22, 2026, 5:01 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

A Study to Analyze Symptoms Prevalent in Early PD (Dysphonia, Tremor)

NCT04288804
View directory record Official record
Conditions
Parkinson Disease
Interventions
Smartphone microphone sensor, Smartphone accelerometer sensor
Device
Lead sponsor
Goalspal LLC
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Pleasanton, California
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Jul 22, 2026, 5:01 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Understanding Disorder-specific Neural Pathophysiology in Laryngeal Dystonia and Voice Tremor

NCT05216770
View directory record Official record
Conditions
Laryngeal Dystonia, Spasmodic Dysphonia, Tremor
Interventions
Brain imaging, Laryngeal sensory block with topical bupivacaine
Other · Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years to 80 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Jul 22, 2026, 5:01 AM EDT
Not yet recruiting Phase 1 Interventional

Extended-release Sodium Oxybate (Lumryz) in Spasmodic Dysphonia and Voice Tremor

NCT07041203
View directory record Official record
Conditions
Spasmodic Dysphonia, Laryngeal Dystonia, Voice Tremor
Interventions
sodium oxybate
Drug
Lead sponsor
Kristina Simonyan
Other
Eligibility
21 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Jul 22, 2026, 5:01 AM EDT
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 Jul 22, 2026, 5:01 AM 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 Jul 22, 2026, 5:01 AM 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 Jul 22, 2026, 5:01 AM EDT
Completed Not applicable Interventional Results available

Essential Voice Tremor: A Study of Botulinum Toxin Treatment and Injection Augmentation

NCT02711995
View directory record Official record
Conditions
Essential Tremor
Interventions
RenuGel, Botulinum Toxin
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 100 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 4, 2018 · Synced Jul 22, 2026, 5:01 AM 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 Jul 22, 2026, 5:01 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Voice Tremor in Spasmodic Dysphonia: Central Mechanisms and Treatment Response

NCT01961297
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
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 21, 2017 · Synced Jul 22, 2026, 5:01 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Long-term Brain Stimulation of the Motor Ventral Thalamus (VOP/VIM) to Improve Motor Function

NCT07056348
View directory record Official record
Conditions
Traumatic Brain Injury, Stroke, Brain Disease, Movement Disorders (Incl Parkinsonism), Central Nervous System Disease, Essential Tremor, Movement Disorders, Essential Tremor of Voice
Interventions
Deep Brain Stimulation (DBS) of the Motor Thalamus
Device
Lead sponsor
Jorge Gonzalez-Martinez
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2030
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Jul 22, 2026, 5:01 AM EDT
Recruiting Not applicable Interventional

Deep Brain Stimulation in Laryngeal Dystonia and Voice Tremor

NCT05150093
View directory record Official record
Conditions
Laryngeal Dystonia, Spasmodic Dysphonia, Tremor, Dystonia
Interventions
Deep Brain Stimulation
Procedure
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Jul 22, 2026, 5:01 AM 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 Jul 22, 2026, 5:01 AM EDT
Not yet recruiting Not applicable Interventional

False Vocal Fold vs EMG Guided Botox for Vocal Tremor

NCT07577310
View directory record Official record
Conditions
Vocal Tremor
Interventions
False Vocal Fold (FVF) botulinum toxin injections, Electromyography (EMG)-Guided Injection
Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Jul 22, 2026, 5:01 AM EDT
Completed Phase 4 Interventional Results available

Propranolol and Botulinum Toxin for Essential Vocal Tremor

NCT02111369
View directory record Official record
Conditions
Essential Vocal Tremor, Essential Voice Tremor, Essential Tremor, Voice Tremor, Vocal Tremor
Interventions
Propranolol, Botulinum Toxin
Drug · Procedure
Lead sponsor
Emory University
Other
Eligibility
45 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 26, 2016 · Synced Jul 22, 2026, 5:01 AM EDT