Usability of Vibro-tactile Stimulation to Treat Spasmodic Dysphonia

Completed · Phase 1/Phase 2

Conditions studied: Spasmodic Dysphonia, Laryngeal Dystonia

In brief

The general aim of the study was to provide evidence for the usability and feasibility of applying vibro-tactile stimulation (VTS) at home as a non-invasive form of neuromodulation to improve speech in people with spasmodic dysphonia (laryngeal dystonia). This work addresses a clinical need to develop alternative or auxiliary treatments for a rare voice disorder with limited treatment options.

Key facts

Study ID

NCT06111027

Run by

University of Minnesota

People needed

40

Starts

2023-11-21

Expected to finish

2024-10-31

Last updated by the study team

2026-07-15

Who can join

Age: 18 and older, up to 75. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Diagnosis of spasmodic dysphonia (laryngeal dystonia) for a minimum of 6 months with documented symptom relief after Botox injection.
• Diagnosis is made by a voice disorder specialist.

You may not qualify if…

• Regular intake of benzodiazepines
• Cognitive impairment: score < 27 on Mini-mental state examination
• Identifies with a neurological or musculoskeletal impairment affecting speech motor function. These impairments may include a form of: Dyskinesia, Dystonia, Essential Tremor, Huntington's Disease, Multiple System Atrophy, Muscle Tension Dysphonia, Parkinsonism, Progressive Supranuclear Palsy, Spasticity, Intracranial Neoplasm (brain tumor), Spinal Neoplasm, Cerebrovascular Accident (Stroke), Mild Traumatic Brain Injury, Intracranial Hemorrhage, Multiple Sclerosis

Where it is running

• University of Minnesota — Minneapolis, Minnesota, United States

Full record on ClinicalTrials.gov

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