- Conditions
- Adductor Spasmodic Dysphonia, Voice Disorders, Spasmodic Dysphonia
- Interventions
- DaxibotulinumtoxinA
- Drug
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- San Francisco, California
Search Results
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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.
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Showing 1–24
of 36
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Spasmodic Dysphonia
- Interventions
- Lidocaine, Vibrating wand
- Drug · Device
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 32 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- Phoenix, Arizona
- 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
- 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
- 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, 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
- 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
- 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
- Phonation Disorder, Spastic Dysphonia, Voice Disorder
- Interventions
- Not listed
- Lead sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
- NIH
- Eligibility
- 20 Years to 80 Years
- Enrollment
- 370 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 1998
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Spasmodic Dysphonia, Singer's Dystonia, Writer's Cramp, Musician's Focal Hand Dystonia, Craniofacial Dystonia, Blepharospasm Oromandibular Dystonia
- Interventions
- MRI, Blood draw
- Other · Procedure
- Lead sponsor
- Massachusetts Eye and Ear Infirmary
- Other
- Eligibility
- 21 Years to 80 Years
- Enrollment
- 141 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2027
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vocal Weakness(Post-BOTOX Injection)
- Interventions
- Amifampridine
- Drug
- Lead sponsor
- Augusta University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2025
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- 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
- 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
- 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
- Conditions
- Communication Disorder, Healthy, Stuttering, Tourette Syndrome, Voice Disorder
- Interventions
- Not listed
- Lead sponsor
- National Institute on Deafness and Other Communication Disorders (NIDCD)
- NIH
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 1,163 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1992 – 2016
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- 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, 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
- 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
- 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
- Laryngeal Dystonia
- Interventions
- Vibrotactile Stimulation (VTS)
- Device
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- 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
- 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
- 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
- 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