Thalamic Deep Brain Stimulation for Tourette Syndrome

May 21, 2019 updated by: Jens Kuhn, University of Cologne

Thalamic Deep Brain Stimulation for Tourette's Syndrome: a Pragmatic Trial With Brief Randomized, Double-blinded Sham Controlled Sequences

In this single-center trial, we aim to include 8 patients with severe and medically refractory Tourette's syndrome. All patients undergo deep brain stimulation surgery with two electrodes located in the centromedian-parafascicular complex. Tic severity and secondary outcome measurements are assessed six and twelve months after surgery. Additionally, a short randomized, double-blinded sham controlled crossover sequence of 24 to 48 hours in either active or sham stimulation is implemented after both 6 and 12 months assesments. Subjects and clinicians are blinded to treatment allocation.

Study Overview

Study Type

Interventional

Enrollment (Actual)

8

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Cologne, Germany, 50924
        • University of Cologne

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Das Tourette-Syndrom (ICD-10: F 95.2; DSM IV: 307.23) als Hauptdiagnose. Bei dem Patienten ist aufgrund einer chronischen, schwergradigen und therapieresistenten Verlaufsform des TS eine Behandlung mittels THS thalamischer Strukturen im Sinne einer ultima ratio vorgesehen.
  • Alter des Patienten 18 bis 65 Jahre
  • Sicher im Verstehen der deutschen Sprache
  • Unterzeichnete Einverständniserklärung

Exclusion Criteria:

  • Klinisch manifeste Psychose
  • Schwangerschaft und Stillzeit
  • Unterbringung nach PsychKG
  • Kontraindikationen einer MRT-Untersuchung wie z. B. implantierter Herzschrittmacher / Defibrillator
  • Neoplastische neurologische Erkrankungen
  • Kontraindikationen einer stereotaktischen Operation, wie z. B.: erhöhte Blutungsneigung, cerebrovaskuläre Erkrankungen (z. B. arteriovenöse Malformationen, Aneurysmata, systemische Gefäßerkrankungen, die auf das Cerebrum übergreifen).
  • Teilnahme an einer anderen klinischen Studie
  • Hirnassoziierte Kriterien, die eine OP ausschließen (Gefäßanomalien, große arteriovenöse Malformationen, Hirnmetastasen, Neoplasien des ZNS (Ausnahme asymptomatisches inzidentielles Meningeom))
  • Antikoagulationtherapie, die in der perioperativen Phase nicht ausgesetzt werden kann
  • OP am Gehirn in der Anamnese, die mit der Platzierung/Funktion des MP interferieren
  • Med. Gegebenheiten, die mit der Studienprozedur interferieren oder Evaluation der Studienparameter beeinträchtigen inkl. Erkrankungen im terminalen Stadium (Lebenserwartung < 12 Monate)
  • Akute Suizidalität
  • Abhängigkeit von Alkohol oder Drogen (exklusive Cannabis, da es von schwer betroffenen Patienten teilweise zur Ticreduktion im Sinne einer Selbstmedikation eingesetzt wird sowie exklusive Opioide und Benzodiazepine, wenn diese initial zur Ticreduktion im Sinne einer Selbstmedikation eingesetzt wurden)
  • Klinisch relevante internistische oder neurologische Erkrankungen
  • Intelligenzminderung
  • Alle aktiv implantierten Medizinprodukte
  • Schweres Schädel-Hirn-Trauma in der Anamnese
  • Metallimplantate im Kopfbereich ( Bsp. Aneurysmaclips)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: On condition
Ongoing thalamic deep brain stimulation
Sham Comparator: Off condition
Switched off thalamic deep brain stimulation, sham stimulation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Yale Global Tic Severity Scale (YGTSS)
Time Frame: Change in the YGTSS Scale from Baseline to 6 and 12 months

Motor tic subscore range 0-25 Vocal tic scubscore range 0-25 Impairment range0-50 Total Score (Vocal tic score + Motor tic score + Impairment) range 0-100

Higher Scores indicate higher tic severity, thus worse outcome

Change in the YGTSS Scale from Baseline to 6 and 12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Modified Rush video rating scale (MRVRS)
Time Frame: Change in the MRVRS Scale from Baseline to 6 and 12 months

Range 0-20

Higher Scores indicate higher tic severity, thus worse outcome

Change in the MRVRS Scale from Baseline to 6 and 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jens Kuhn, MD, University Hospital of Cologne

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 1, 2014

Primary Completion (Actual)

February 28, 2019

Study Completion (Actual)

March 31, 2019

Study Registration Dates

First Submitted

June 26, 2017

First Submitted That Met QC Criteria

May 19, 2019

First Posted (Actual)

May 22, 2019

Study Record Updates

Last Update Posted (Actual)

May 23, 2019

Last Update Submitted That Met QC Criteria

May 21, 2019

Last Verified

May 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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