Combined STN and NBM Deep Brain Stimulation for Mild Cognitive Impairment in Parkinson's Disease

NCT ID: NCT05968703

Last Updated: 2025-05-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-08

Study Completion Date

2027-07-31

Brief Summary

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The goal of this clinical trial is to evaluate the safety and tolerability of a novel deep brain stimulation (DBS) of the Subthalamic Nucleus (STN) and Nucleus Basalis of Meynert (NBM) to treat cognitive and cognitive-motor symptoms in individuals with Parkinson's disease. The main question it aims to answer is:

Is a combined deep brain stimulation approach targeting the STN and NBM with four DBS leads safe and tolerable for cognitive and cognitive-motor symptoms in individuals with Parkinson's disease with Mild Cognitive Impairment. Ten participants are anticipated to be enrolled.

Participants will undergo a modification of the traditional STN DBS approach for motor symptoms of PD. In addition to the two leads placed within the STN, two additional leads will be placed with the NBM for treatment of cognitive and cognitive-motor symptoms. Novel stimulation patterns will be used within the NBM to target cognitive and cognitive-motor symptoms using an investigational software. Participants will be followed over two years while receiving this therapy with assessments at baseline and every six months. Assessments will include a combination of neuropsychological evaluations, cognitive assessments, motor tasks (including gait/walking), and questionnaires to evaluate the treatment. Two different surgical trajectories will be used, with half the cohort randomized to each group. This will allow comparison of the impact of surgical trajectory on the intervention.

Detailed Description

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Conditions

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Parkinson's Disease Mild Cognitive Impairment

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

All participants will receive the interventional treatment. Two different surgical trajectories will be used for placing the leads in the NBM. Half the cohort will be randomized to each trajectory.
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Vertical Nuclear Trajectory

Participants will receive combined STN + NBM DBS. The lead placed within the NBM will use a vertical trajectory targeting the nucleus itself.

Group Type EXPERIMENTAL

Combined STN+NBM DBS

Intervention Type DEVICE

This intervention is a 4-lead deep brain stimulation approach targeting the Subthalamic Nucleus (STN) and Nucleus Basalis of Meynert (NBM)

Lateral NBM Bundle Trajectory

Participants will receive combined STN + NBM DBS. The lead placed within the NBM will use a lateral trajectory targeting the lateral efferent bundle from the NBM

Group Type EXPERIMENTAL

Combined STN+NBM DBS

Intervention Type DEVICE

This intervention is a 4-lead deep brain stimulation approach targeting the Subthalamic Nucleus (STN) and Nucleus Basalis of Meynert (NBM)

Interventions

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Combined STN+NBM DBS

This intervention is a 4-lead deep brain stimulation approach targeting the Subthalamic Nucleus (STN) and Nucleus Basalis of Meynert (NBM)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of Parkinson's disease (PD)
* Approved (or planning on) for subthalamic nucleus (STN) deep brain stimulation (DBS)
* Willingness to withdraw from clinical medication regimen when necessary for research visits
* Ability to provide informed consent

Exclusion Criteria

* Dementia
* Unstable medical, psychiatric conditions including significant untreated depression, history of suicidal attempt, or current suicide ideation
* History of seizures
* Pregnant
* Requires MRI
* Unable to walk 100 feet without an assistive device
Minimum Eligible Age

21 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute of Neurological Disorders and Stroke (NINDS)

NIH

Sponsor Role collaborator

Helen M. Bronte-Stewart

OTHER

Sponsor Role lead

Responsible Party

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Helen M. Bronte-Stewart

Professor of Neurology

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Helen M Bronte-Stewart, MD MSE

Role: PRINCIPAL_INVESTIGATOR

Stanford University

Locations

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Stanford Neuroscience Health Center

Stanford, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Study Coordinator

Role: CONTACT

650-723-6709

Facility Contacts

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Study Coordinator

Role: primary

650-723-6709

Other Identifiers

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UG3NS128150

Identifier Type: NIH

Identifier Source: secondary_id

View Link

UH3NS128150

Identifier Type: NIH

Identifier Source: secondary_id

View Link

70608

Identifier Type: -

Identifier Source: org_study_id

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