Dystonia Image-based Programming of Stimulation: A Prospective, Randomized, Double-blind Crossover Trial

Status: Recruiting
Location: See location...
Intervention Type: Other
Study Type: Interventional
Study Phase: Not Applicable
SUMMARY

The primary objective of this exploratory study is to prospectively evaluate the feasibility of image-guided programming of pallidal deep brain stimulation (DBS) for dystonia. The dystonias are a heterogeneous group of movement disorders that share the core clinical feature of abnormal involuntary muscle contractions in common. Pallidal DBS is an established therapy for severe cases with an average improvement in dystonia severity of 50-60%. However, outcomes are variable and difficult to predict, and clinical trials report up to 25% of Nonresponders. Variability in electrode placement and inappropriate stimulation settings may account for much of this variability in outcome. In addition, improvement in dystonia is delayed, often days to weeks after a change in DBS therapy, complicating programming. Our group recently developed a computer model to predict optimal individualized stimulation settings in patients based on the outcome of a large cohort of of chronically treated patients. In-silico testing showed a 16.3% better mean group improvement with computer-assisted programming compared with physician-assisted programming and a dramatic reduction in non-responders (from 25% to 5%). In this prospective study, the computer model will be compared in a randomized, controlled, and double blinded setting against best clinical DBS programming. The primary outcome will be a responder analysis in which dystonia severity will be compared between conventional clinical and model-based programming will be compared.

Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Healthy Volunteers: f
View:

• Chronic deep brain stimulation (\> 1 year) in the internal globus pallidus in patients with isolated dystonia.

• Deep brain stimulation settings and dystonia medication stable for \> 3 months.

• Understanding about and consent to the study and signed informed consent form.

Locations
Other Locations
Germany
Department of Neurology, University Hospital Würzburg
RECRUITING
Würzburg
Contact Information
Primary
Martin Reich, Dr.
Reich_M1@ukw.de
0931-201-0
Backup
Florian Lange, Dr.
Lange_L@ukw.de
0931-201-0
Time Frame
Start Date: 2021-11-01
Estimated Completion Date: 2025-12
Participants
Target number of participants: 80
Treatments
Experimental: Computer
Programming based on computer-guided assessment
Active_comparator: CLINICAL
Programming based on clinically-guided assessment
Sponsors
Collaborators: BMBF (Bundes Ministerium fuer Bildung und Forschung)
Leads: Wuerzburg University Hospital

This content was sourced from clinicaltrials.gov