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Showing 1–24 of 37 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Completed Phase 2Phase 3 Interventional Results available

Sodium Oxybate in Spasmodic Dysphonia and Voice Tremor

NCT03292458
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
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
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
Conditions
Spasmodic Dysphonia, Laryngeal Dystonia
Interventions
Vibro-tactile stimulation
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Spasmodic Dysphonia, Focal Dystonia
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
21 Years to 80 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
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
Recruiting Not applicable Interventional Accepts healthy volunteers

Brain-Computer Interfaces in Laryngeal Dystonia

NCT04421365
Conditions
Laryngeal Dystonia
Interventions
neurofeedback brain-computer interface (BCI)
Device
Lead sponsor
Kristina Simonyan
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
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
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Voice Tremor in Spasmodic Dysphonia: Central Mechanisms and Treatment Response

NCT01961297
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
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Zinc Supplementation Prior to Botox Injections for Spasmodic Dysphonia

NCT05892770
Conditions
Spasmodic Dysphonia
Interventions
Zinc gluconate supplement, Botulinum toxin type A
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 99 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Dysphonia, Spastic, Dysphonia, Laryngeal Dystonia
Interventions
Pyridostigmine Bromide 60 Milligrams (mg)
Drug
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
21 Years to 100 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Norfolk, Virginia
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
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Neuromodulation in Laryngeal Dystonia

NCT05095740
Conditions
Laryngeal Dystonia, Focal Dystonia
Interventions
repetitive transcranial magnetic stimulation (rTMS), sham rTMS
Device
Lead sponsor
MGH Institute of Health Professions
Other
Eligibility
21 Years to 85 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Completed No phase listed Observational Accepts healthy volunteers

Characteristics of Idiopathic Familial Voice Disorders

NCT00001552
Conditions
Laryngeal Disease, Spastic Dysphonia, Voice Disorder
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1996
U.S. locations
2
States / cities
Iowa City, Iowa • Bethesda, Maryland
Completed No phase listed Observational

Neuropathology of Spasmodic Dysphonia

NCT00118586
Conditions
Voice Disorders, Spasmodic Dysphonia, Healthy, Movement Disorder, Focal Dystonia
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
21 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Dystonia
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
3,265 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2020
U.S. locations
34
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Fountain Valley, California + 26 more
Completed Not applicable Interventional Accepts healthy volunteers Results available

Laryngeal Vibration for Spasmodic Dysphonia

NCT03746509
Conditions
Spasmodic Dysphonia
Interventions
Laryngeal Vibration (Treatment), Laryngeal Vibration (Comparator)
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Minneapolis, Minnesota
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
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Air Stream in Voice Production

NCT00015795
Conditions
Spastic Dysphonia, Healthy
Interventions
airway interruption test
Device
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Recruiting Not applicable Interventional

tDCS for Laryngeal Dystonia

NCT06830174
Conditions
Laryngeal Dystonia
Interventions
Starstim system
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Spasmodic Dysphonia, Adductor Spasmodic Dysphonia, Voice Disorders
Interventions
Sensation testing
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 85 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Francisco, California
Conditions
Laryngeal Dystonia, Adductor Spastic Dysphonia of Dystonia
Interventions
Deep Brain Stimulation
Device
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
1
States / cities
Indianapolis, Indiana
Conditions
Spasmodic Dysphonia, Laryngeal Dystonia
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
Atlanta, Georgia • St Louis, Missouri
Terminated Not applicable Interventional Accepts healthy volunteers

Effect of Vocal Exercise After Botulinum Toxin Injection for Spasmodic Dysphonia

NCT00895063
Conditions
Spasmodic Dysphonia, Dystonia
Interventions
Vocal Exercise
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
New York, New York