Low Frequency Deep Brain Stimulation of the Subthalamic Nucleus in Parkinson's Disease

June 1, 2021 updated by: University of California, Davis

Safety and Feasibility of Using Low Frequency Deep Brain Stimulation of the Subthalamic Nucleus to Improve Cognitive Performance in Patients With Parkinson's Disease

Prospective trial of low frequency deep brain stimulation of the ventral subthalamic nucleus to improve cognitive performance in patients with advanced Parkinson's disease. All study participants have undergone DBS implantation surgery as part of their routine care for motor manifestations of Parkinson's disease. In this study, a temporary low frequency period of stimulation will be applied to determine its effects on cognition.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

In this randomized cross-over pilot study, our primary aim was to determine the effect of theta (5 Hz), and gamma (130 Hz) frequency stimulation in the ventral STN on cognitive control in patients with PD. This study provides a first look at frequency dependent modulation of cognitive function and provides important insights into the utility of DBS for non-motor symptoms of PD and other neuropsychiatric disorders.

Study Type

Interventional

Enrollment (Actual)

15

Phase

  • Not Applicable

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

  • United States
    • California
      • Sacramento, California, United States, 95817
        • University of California, Davis

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Parkinson's disease, undergoing deep brain stimulation implantation as part of their routine management of motor symptoms.

Exclusion Criteria:

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: low frequency stimulation (LFS)
Low-frequency deep brain stimulation of the subthalamic nucleus
Device: deep brain stimulation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mean Reaction Time for Computerized Color Naming Stroop Task
Time Frame: 2 days
The Stroop Color and Word Test (SCWT) is a neuropsychological test extensively used to assess the ability to inhibit cognitive interference that occurs when the processing of a specific stimulus feature impedes the simultaneous processing of a second stimulus attribute, well-known as the Stroop Effect.
2 days
Mean Accuracy Rates Using Computerized Color Naming Stroop Task
Time Frame: 2 days
The Stroop Color and Word Test (SCWT) is a neuropsychological test extensively used to assess the ability to inhibit cognitive interference that occurs when the processing of a specific stimulus feature impedes the simultaneous processing of a second stimulus attribute, well-known as the Stroop Effect.
2 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Worsening Depression Using Beck's Depression Index
Time Frame: 2 days
Questionnaire with numerical score indicating level of depression. Individual scale items are scored on a 4-point continuum (0=least, 3=most), with a total summed score range of 0-63. Higher scores indicate greater depressive severity.
2 days
Number of Participants Showing Motor Worsening Using the Unified Parkinson's Disease Rating Scale (UPDRS-III)
Time Frame: 2 days
The UPDRS scale is a rating tool used to gauge the course of Parkinson's disease in patients and consists of the following five segments: 1) Mentation, Behavior, and Mood, 2) ADL, 3) Motor sections, 4) Modified Hoehn and Yahr Scale, and 5) Schwab and England ADL scale.
2 days

Collaborators and Investigators

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

Sponsor

University of California, Davis

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

June 1, 2015

Primary Completion (Actual)

November 1, 2019

Study Completion (Actual)

November 1, 2019

Study Registration Dates

First Submitted

December 9, 2016

First Submitted That Met QC Criteria

June 27, 2017

First Posted (Actual)

July 2, 2017

Study Record Updates

Last Update Posted (Actual)

June 23, 2021

Last Update Submitted That Met QC Criteria

June 1, 2021

Last Verified

June 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 693382

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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