Clinical trials: Spasmodic Dysphonia
Spasmodic Dysphonia
A Phase 2 Trial of Deep Brain Stimulation for Spasmodic Dysphonia
Spasmodic Dysphonia (SD) is a focal, action-specific movement disorder with prominent effects on speech (1, 2). Patients with SD lose their ability to speak normally due to involuntary contractions of their laryngeal muscles.
- Trial name
- NCT04938154
- Testing
- DBS ON, DBS OFF
- Where
- Canada
- Volunteers
- 16 people
- Sponsor
- University of British Columbia
Voice Disorders, Spasmodic Dysphonia
Neuropathology of Spasmodic Dysphonia
This study will look for abnormalities in a brain of persons affected with spasmodic dysphonia, a form of movement disorder that involves involuntary "spasms" of the muscles in the vocal folds causing breaks of speech and…
- Conditions
- Voice Disorders, Spasmodic Dysphonia, Healthy, Movement Disorder
- Trial name
- NCT00118586
- Where
- United States
- Volunteers
- 97 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Spasmodic Dysphonia, Laryngeal Dystonia
Thalamic Deep Brain Stimulation for Spasmodic Dysphonia- DEBUSSY Trial
Laryngeal Dystonia (LD), also commonly referred to as spasmodic dysphonia, is a neurological voice disorder characterized by involuntary dystonic contractions of the laryngeal muscles.
- Conditions
- Spasmodic Dysphonia, Laryngeal Dystonia, Deep Brain Stimulation
- Trial name
- NCT02558634
- Testing
- VIM Thalamic Deep Brain Stimulation ON, VIM Thalamic Deep Brain Stimulation OFF
- Where
- Canada
- Volunteers
- 6 people
- Sponsor
- University of British Columbia
Spasmodic Dysphonia, Laryngeal Dystonia
rTMS in Spasmodic Dysphonia
Focal dystonia is a neurological movement disorder characterized by excessive involuntary muscle contractions of any body part. Spasmodic dysphonia (SD) is a type of focal dystonia characterized by excessive contraction of…
- Trial name
- NCT02957942
- Testing
- 1Hz repetitive transcranial magnetic stimulation (rTMS)
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Adductor Spasmodic Dysphonia
Effects of Vocal Exercises for Spasmodic Dysphonia
The purpose of this study is to assess the effect of voice exercise and voice rest on subject's perception of vocal handicap and communicative participation following Botox injections for adductor spasmodic dysphonia.
- Trial name
- NCT03349086
- Testing
- Voice Exercise
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- University of Wisconsin, Madison
Adductor Spasmodic Dysphonia
The Effect of Vocal Rest Versus Vocalization Following Xeomin® Injections in Spasmodic Dysphonia
This study will compare the effects of vocal rest versus continuous vocalization for one hour immediately following botulinum toxin injections for adductor spasmodic dysphonia.
- Trial name
- NCT03129087
- Testing
- Vocal rest versus vocalization
- Where
- Canada
- Volunteers
- 20 people
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Spasmodic Dysphonia, Focal Dystonia
Role of Neurotransmission and Functional CNS Networks in Spasmodic Dysphonia
This study will examine how the brain controls speech in patients with spasmodic dysphonia, a voice disorder that involves involuntary spasms of muscles in the larynx (voice box), causing breaks in speech.
- Trial name
- NCT00713414
- Where
- United States
- Volunteers
- 37 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Adductor Spasmodic Dysphonia
Treatment for Adductor Spasmodic Dysphonia by Type 2 Thyroplasty Using Titanium Bridges
For adductor spasmodic dysphonia, there is a need for establishing a new therapy under the present circumstance where no standard therapy has been established yet and existing therapies fail to provide permanent effect.
- Trial name
- NCT02528006
- Testing
- Type 2 Thyroplasty using Titanium Bridges
- Where
- 4 sites in Japan
- Volunteers
- 20 people
- Sponsor
- Kumamoto University
Spasmodic Dysphonia, Voice Tremor
Voice Tremor in Spasmodic Dysphonia: Central Mechanisms and Treatment Response
The proposed research aims to determine brain abnormalities in patients with spasmodic dysphonia (SD) and voice tremor (VT) as the basis for characterization of central mechanisms underlying symptom improvement following the use…
- Trial name
- NCT01961297
- Testing
- Sodium oxybate
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Kristina Simonyan
Spasmodic Dysphonia, Laryngeal Dystonia
Examining the Spasmodic Dysphonia Diagnosis and Assessment Procedure (SD-DAP) for Measuring Symptom Change
This is a study of patients with spasmodic dysphonia to determine how best to measure the severity of the disorder in patients. It addresses which characteristics of speech are the best indicator of whether or not a particular…
- Trial name
- NCT02061943
- Where
- 2 sites in United States
- Sponsor
- Emory University
Spasmodic Dysphonia, Dystonia
Effect of Vocal Exercise After Botulinum Toxin Injection for Spasmodic Dysphonia
Studies have suggested that voluntary muscle exercise in the hand and face after botulinum toxin injection may enhance the clinical effects of the toxin.
- Trial name
- NCT00895063
- Testing
- Vocal Exercise
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- NYU Langone Health