Surround Inhibition in Patients With Dystonia
Public ClinicalTrials.gov record NCT00029601. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
The Study of Surround Inhibition in Patients With Dystonia
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will use transcranial magnetic stimulation (TMS) to examine how the brain controls muscle movement in dystonia. Dystonia is a movement disorder in which involuntary muscle contractions cause uncontrolled twisting and repetitive movement or abnormal postures. Dystonia may be focal, involving just one region of the body, such as the hand, neck or face. Focal dystonia usually begins in adulthood. Generalized dystonia, on the other hand, generally begins in childhood or adolescence. Symptoms begin in one area and then become more widespread. Healthy normal volunteers and patients with focal \[or generalized\] dystonia \[between 21 and 65 years of age\] may be eligible for this study. Participants will have transcranial magnetic stimulation. For this test, subjects are seated in a comfortable chair, with their hands placed on a pillow on their lap. An insulated wire coil is placed on the scalp. A brief electrical current is passed through the coil, creating a magnetic pulse that stimulates the brain. (This may cause muscle, hand or arm twitching if the coil is near the part of the brain that controls movement, or it may induce twitches or transient tingling in the forearm, head or face muscles.) During the stimulation, subjects will be asked to either keep their hand relaxed or move a certain part of the hand in response to a loud beep or visual cue. Metal electrodes will be taped to the skin over the muscle for computer recording of the electrical activity of the hand and arm muscles activated by the stimulation. There are three parts to the study, each lasting 2-3 hours and each performed on a separate day.
Study identification
- NCT ID
- NCT00029601
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 60 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 31, 2001
- Primary completion
- Not listed
- Completion
- Jun 30, 2002
- Last update posted
- Mar 3, 2008
2002
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institute of Neurological Disorders and Stroke (NINDS) | Bethesda | Maryland | 20892 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00029601, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 3, 2008 · Synced Sep 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00029601 live on ClinicalTrials.gov.