Deep Brain Stimulation for Voice Disorders in Dystonia and Tremor
Official title: Deep Brain Stimulation in Laryngeal Dystonia and Voice Tremor
Run by Massachusetts Eye and Ear Infirmary · NCT05150093 · Data updated 2026-11-12
This study is testing if deep brain stimulation can improve voice problems in people with laryngeal dystonia and essential tremor.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 80 Years |
| Sex | All |
| Enrollment | 120 (estimated) |
| Sponsor | Massachusetts Eye and Ear Infirmary Academic / other |
| Locations | 1 site (Boston, Massachusetts) |
| Status | Recruiting |
| Started | June 21, 2022 |
| Main results expected | August 31, 2027 |
| Study ends | August 31, 2027 |
| Registry record updated | December 2, 2025 |
| Trial ID | NCT05150093 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults aged 18-80 with a definitive diagnosis of essential tremor or dystonia who have not responded to medical treatment.
✕Probably not a fit
Patients with significant hearing loss or those unable to comply with study protocols may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This project aims to explore the incidence of voice disorders in patients with laryngeal dystonia and essential tremor who are undergoing deep brain stimulation (DBS). It will investigate the neuroimaging and neurophysiological correlates of voice dysfunction and assess the effects of DBS on voice function. By utilizing both invasive and non-invasive neuroscience techniques, the study seeks to enhance understanding of how voice control is affected in these patients and to develop targeted strategies for treating voice dysfunction through closed-loop brain stimulation.
Why it matters
Potential benefit: If successful, this study could lead to improved voice function and communication abilities for patients suffering from neurological voice disorders.
How similar studies have gone: While deep brain stimulation has been effective for limb symptoms in similar conditions, the specific focus on voice dysfunction is relatively novel and has not been extensively studied.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion 1. Clinical indications to proceed with DBS implantation, as determined by the clinical multidisciplinary movement disorders board, including: a) definitive diagnosis of essential tremor or dystonia, b) medically refractory disease, c) adequate performance on neuropsychological evaluation as determined by a licensed clinical neuropsychologist. 2. The ability to comply with test directions, complete pre-operative task training, and provide informed consent. 3. Age 18-80 years. Exclusion 1\. Inability to understand or perform the task outlined in the protocol during a pre-surgery training session. 2. Significant hearing loss. 3\. Cortical venous anatomy that could potentially obstruct ECoG electrode placement, as determined by the surgeon, visualized on pre-op MRI or during surgery.
Where it's running
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Massachusetts General Hospital, University of California San Francisco, University of Utah
Boston, Massachusetts, United States Recruiting
Study contacts
- Study coordinator: Kristina Simonyan, MD, PhD
- Email: simonyan_lab@meei.harvard.edu
- Phone: 617-573-6016
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Examining brain function in laryngeal dystonia and voice tremor
This study is testing how brain function differs in people with laryngeal dystonia and voice tremor compared to healthy individuals to better understand these voice disorders.
-
Evaluating voice disorders like laryngeal dystonia and voice tremor
This study is testing new ways to tell the difference between laryngeal dystonia and voice tremor to help people get the right treatment for their voice disorders.
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Investigating the relationship between genetic mutations and brain changes in dystonia
This study is trying to see how genetic changes linked to dystonia affect the brain in people with the condition compared to healthy individuals.
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Observational study on functional neurological disorders in movement disorder patients
This study looks at how common functional neurological disorders are in patients with movement disorders to see how they differ from those with non-functional movement issues.
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Long-term evaluation of Abbott deep brain stimulation systems for movement disorders
This study is testing how safe and effective Abbott deep brain stimulation systems are for people with movement disorders like Parkinson's disease over a five-year period.
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Intraoperative Microelectrode Recordings with MAVEN vs Standard Equipment
This study tests whether MAVEN can match the recording data collected during DBS surgery for movement disorders using standard equipment.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.