NCT02588144

Brief Summary

54 patients with idiopathic Parkinson's disease and freezing of gait resistant to subthalamic nucleus stimulation and dopaminergic medication will be included into this multicentre randomised controlled double-blinded parallel group clinical trial. The treatment consists of two different stimulation settings using (i) conventional stimulation of the subthalamic nucleus \[standard STN\] as active comparator and (ii) combined stimulation of active electrode contacts located in both the subthalamic nucleus and substantia nigra pars reticulata \[STN+SNr\].

Trial Health

47
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2015

Typical duration for not_applicable

Geographic Reach
2 countries

10 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2015

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

October 24, 2015

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 27, 2015

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2017

Completed
Last Updated

June 20, 2017

Status Verified

June 1, 2017

Enrollment Period

1.9 years

First QC Date

October 24, 2015

Last Update Submit

June 16, 2017

Conditions

Keywords

Parkinson's diseasefreezing of gaitdeep brain stimulationsubstantia nigra pars reticulatasubthalamic nucleus

Outcome Measures

Primary Outcomes (1)

  • Freezing of Gait Assessment Course (FOG-AC)

    Outcome at day 90 (V6) with reference to baseline (V1)

Secondary Outcomes (12)

  • Timed Walking test from Core Assessment Program for Surgical Interventions in Parkinson's disease (CAPSIT-PD)

    At baseline, day 2, 8, 21, 42 and 90, respectively

  • Berg Balance Scale

    At baseline, day 42 and 90, respectively

  • Parkinson's disease questionnaire (PDQ-39)

    At baseline, day 42 and 90, respectively

  • Freezing of gait questionnaire

    At baseline, day 42 and 90, respectively

  • Beck's depression Inventory

    At baseline, day 42 and 90, respectively

  • +7 more secondary outcomes

Study Arms (2)

[standard STN]

ACTIVE COMPARATOR

Device: standard stimulation on subthalamic (STN) contacts

Procedure: [standard STN]

[STN+SNr]

EXPERIMENTAL

Device: Combined stimulation of the subthalamic nucleus (STN) and the substantia nigra pars reticulata (SNr)

Procedure: [STN+SNr]

Interventions

High frequency deep brain stimulation with variable (best individual) stimulation on subthalamic contacts

Also known as: subthalamic deep brain stimulation
[standard STN]
[STN+SNr]PROCEDURE

high frequency deep brain stimulation of combined (best individual) subthalamic and nigral stimulation

Also known as: combined subthalamic and nigral stimulation
[STN+SNr]

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Idiopathic Parkinson's disease (according to the "British Brain Bank criteria" (Hughes, 1992) including genetic forms
  • Therapy with STN-DBS (deep brain stimulation) (ACTIVA pulse generators) at least six months from surgery
  • Activa PC (Primary Cell) or Activa RC (Rechargeable Cell) as implanted pulse generator with "Interleaving" programming option
  • Localization of an active electrode contact in the subthalamic nucleus
  • Localization of the caudal electrode contacts in the substantia nigra pars reticulata area (coordinates relative to midcommisural Point (MCP):
  • left: -7mm ≤ x ≤ -12mm; -2mm ≤ y ≤ -6mm; -6mm ≤ z ≤ -10mm right: 7mm ≤ x ≤ 12mm; -2mm ≤ y ≤ -6mm; -6mm ≤ z ≤ -10mm (x = medio-lateral, y = anterio-posterior, z = rostro-caudal)
  • ≥ 30% improvement in UPDRS III with 'standard STN' compared to 'stimulation off' in dopaminergic off
  • Freezing of Gait Assessment Course ≥10 and ≤33
  • Patient not wheelchair-bound and possible to move self-dependently outside a freezing episode.
  • Disease duration ≥ 5 years
  • Age: between 18 and 80 years
  • Dopaminergic medication constant for at least four weeks prior to study enrolment
  • Written informed consent

You may not qualify if:

  • Participation in other clinical trials within the past three months and during enrolment in our study
  • Cognitive impairment (Mini Mental State Exam \< 20)
  • Suicidality, Psychosis
  • Other severe pathological chronic condition that might confound treatment effects or interpretation of the data
  • Pregnancy
  • Paradoxical levodopa-induced "on" state freezing (Espay et al., 2012)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

Center of Neurology and Hertie Institute for Clinical Brain Research, Department for Neurodegenerative Diseases and Neurosurgery University of Tübingen

Tübingen, Baden-Wurttemberg, 72076, Germany

RECRUITING

Ludwig-Maximilians-University Munich, Klinikum Großhadern, Department for Neurology and Neurosurgery

Munich, Bavaria, 81377, Germany

RECRUITING

University Hospital Regensburg , Department for Neurology and Neurosurgery

Regensburg, Bavaria, 93053, Germany

RECRUITING

University Hospital Köln, Department for Neurology and Neurosurgery

Cologne, North Rhine-Westphalia, 50924, Germany

RECRUITING

University Hospital of Düsseldorf, Departments for Neurology and Neurosurgery

Düsseldorf, North Rhine-Westphalia, 40225, Germany

RECRUITING

University Hospital Leipzig, Department for Neurology and Neurosurgery

Leipzig, Saxony, 04103, Germany

RECRUITING

University Hospital Kiel, Department for Neurology and Neurosurgery

Kiel, Schleswig-Holstein, 24105, Germany

RECRUITING

Charite- University Hospital Berlin, Departments for Neurology and Neurosurgery

Berlin, 10117, Germany

RECRUITING

University Hospital Hamburg-Eppendorf, Department for Neurology and Neurosurgery

Hamburg, 20246, Germany

RECRUITING

University Hospital Luxembourg, Department for Neurology and Neurosurgery

Luxembourg, L-4362, Luxembourg

RECRUITING

Related Publications (1)

  • Weiss D, Walach M, Meisner C, Fritz M, Scholten M, Breit S, Plewnia C, Bender B, Gharabaghi A, Wachter T, Kruger R. Nigral stimulation for resistant axial motor impairment in Parkinson's disease? A randomized controlled trial. Brain. 2013 Jul;136(Pt 7):2098-108. doi: 10.1093/brain/awt122. Epub 2013 Jun 11.

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • Daniel Weiss, MD

    Department for Neurodegenerative Diseases, Centre for Neurology, Tübingen, Germany, and Hertie-Institute for Clinical Brain Research

    PRINCIPAL INVESTIGATOR
  • Alireza Gharabaghi, MD

    Division of Functional and Restorative Neurosurgery, Department of Neurosurgery, Tübingen, Germany, and Center for Integrative Neuroscience, Tübingen, Germany

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

October 24, 2015

First Posted

October 27, 2015

Study Start

October 1, 2015

Primary Completion

September 1, 2017

Study Completion

September 1, 2017

Last Updated

June 20, 2017

Record last verified: 2017-06

Locations