Vibrotactile Stimulation for Spasmodic Dysphonia
(Neuro-VTS-LD Trial)
What You Need to Know Before You Apply
What is the purpose of this trial?
Laryngeal dystonia (LD) is a focal dystonia affecting laryngeal muscles, causing involuntary spasms that impair speech production. Recent research demonstrated that non-invasive vibrotactile stimulation (VTS) of the laryngeal area can provide acute symptom relief in up to 57% of patients, with improvements in voice quality and reductions in perceived speech effort lasting from minutes to several days. However, the neural mechanisms underlying this therapeutic effect and the factors determining individual treatment response remain incompletely understood. The objective is to evaluate the acute effects of VTS on voice and speech parameters in participants with LD while characterizing associated changes in brain resting-state networks using magnetic resonance imaging (MRI).
Are You a Good Fit for This Trial?
Inclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Treatment
Participants receive vibro-tactile stimulation (VTS) in a controlled laboratory setting for about 20 minutes, with MRI scans before and after the VTS
Follow-up
Participants are monitored for changes in brain resting-state networks and voice parameters after VTS
What Are the Treatments Tested in This Trial?
Interventions
- Vibrotactile Stimulation
How Is the Trial Designed?
2
Treatment groups
Active Control
Find a Clinic Near You
Who Is Running the Clinical Trial?
University of Minnesota
Lead Sponsor
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