NCT02056873

Tourette Syndrome Deep Brain Stimulation

The Human Thalamocortical Network in Tourette Syndrome

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 10 (actual)
• Sponsor: University of Florida · Academic / Other
• Sex: All
• Age: 21 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to evaluate the effectiveness and safety of deep brain stimulation (DBS) as a possible new treatment for Tourette Syndrome (TS). This investigation will (1) test the hypothesis that centromedian (CM) continuous brain stimulation will be an effective, safe method for the treatment of tics in medication refractory TS, (2) will define the intra-operative and post-operative physiological changes, and (3) will test the hypothesis that responsive brain stimulation (RBS) will provide an alternative to chronic DBS in TS.

Detailed description

Normal clinical care for TS includes cognitive behavior therapy, medication, supportive psychotherapy, and/or a combination of the two. To meet entry criteria for this study, you must have already tried these methods and they did not help your symptoms. DBS is considered experimental for the treatment of TS and would not be done as normal clinical care. Participation in this study will require extensive pre-surgical screening to determine eligibility for DBS surgery, a DBS surgical procedure, and regular follow-ups. Subjects will be seen monthly post surgery for 6 months. After 6 months, data will be assessed and RBS may be offered as a stimulation setting. If so, the stimulator settings will be changed from chronic to responsive. If not, the subject will continue to receive chronic DBS stimulation. Subsequent visits will be scheduled every 6 months until a total of 24 months of study participation. At the end of the initial 24-month study period, subjects will have the choice of 1) continuing active stimulation at the current setting, 2) continuing stimulation but searching for a new setting, 3) discontinuing stimulation (turning the device off), 4) having the device removed. If the subject continues to receive active stimulation, they will be followed by the PI and seen at yearly intervals until the DBS system is commercially available, FDA approved for the treatment of TS, or unavailable for patient use.

Conditions

• Tourette Syndrome

Interventions

Type	Name	Description
DEVICE	Continuous DBS	The DBS system includes an implantable neurostimulator, CM thalamic leads, and Electrocorticography (ECOG) strips. The DBS system will be set to provide continuous stimulation for the 6 months following surgery. Subjects will be seen monthly for evaluation as a part of normal clinical care for DBS. At 6 months, the investigators will determine whether or not the subject is a candidate for responsive brain stimulation (RBS). Qualifying subjects will have the option to have their settings changed in order to participate in the RBS stimulation intervention. Subjects who do not qualify or do not participate will continue to receive this intervention for the duration of the study. These subjects will been seen every 6 months for evaluation as part of normal clinical care for DBS.
DEVICE	Responsive Brain Stimulation (RBS Setting)	The DBS system includes an implantable neurostimulator, CM thalamic leads, and Electrocorticography (ECOG) strips. Six months post-surgery, the DBS system will be set to provide responsive stimulation for the duration of the study. Subjects will be seen every 6 months for evaluation as a part of normal clinical care for DBS. Data gathered from the subject during the first 6 months will be used to determine if this intervention is applicable for each individual subject. Subjects who do not qualify will continue to receive the other study intervention.

Timeline

• Start date: 2014-03-20
• Primary completion: 2021-08-25
• Completion: 2023-08-24
• First posted: 2014-02-06
• Last updated: 2024-09-05
• Results posted: 2024-09-05

Locations

1 site across 1 country: United States

Regulatory

• FDA-regulated device study