NCT05658302

Brief Summary

This study will help us better understand how the brain works in people with Parkinson's disease (PD). PD is a brain disease that gets worse over time, and affects over 10 million people world-wide. A common treatment for PD is Deep Brain Stimulation (DBS). To improve DBS therapy for PD, we need a deeper understanding of how the different parts of the brain work together in PD, and how this relates to movement and thinking problems that people with PD experience. We may be able to use the results of this study to improve DBS treatments in the future.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
22mo left

Started Mar 2023

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress63%
Mar 2023Mar 2028

First Submitted

Initial submission to the registry

December 12, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

December 20, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

March 28, 2023

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2028

Last Updated

January 26, 2026

Status Verified

January 1, 2026

Enrollment Period

3.9 years

First QC Date

December 12, 2022

Last Update Submit

January 22, 2026

Conditions

Outcome Measures

Primary Outcomes (4)

  • reach-related modulation

    reach-related modulation in beta/HFO power in DBS lead LFPs across OFF, DBS, L-dopa, and DBS+L-dopa conditions.

    2 days

  • N-back task trials

    directed connectivity between STN and DLPFC compared between the N-back task trials with and without stimulation.

    2 days

  • rigidity and bradykinesia assessments

    differences in rigidity and bradykinesia assessments between conditions: off-stimulation vs eiDBS-suppression, off-stimulation vs eiDBS-amplification, eiDBS-suppression vs eiDBS-amplification.

    1 day

  • peak frequency of the ERs + spontaneous LFPs

    the correlation between the peak frequency of the ERs in the GPi (or STN) and that of spontaneous LFPs in the GPi (or STN).

    1 day

Secondary Outcomes (3)

  • N-back task trials

    2 days

  • rigidity/bradykinesia measurements and correlations to conditions

    1 day

  • task vs. rest and topographical location

    2 days

Study Arms (1)

Parkinson's disease

* Diagnosis of idiopathic PD * Surgery at UMN to implant DBS system with directional lead(s) and multiple independent current control IPG is planned as part of routine clinical care * At least 21 years old * Existing or planned 7T brain imagery

Eligibility Criteria

Age21 Years+
Sexfemale
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

PD patients

You may qualify if:

  • Diagnosis of idiopathic PD
  • Surgery at UMN to implant DBS system with directional lead(s) and multiple independent current control IPG is planned as part of routine clinical care
  • At least 21 years old

You may not qualify if:

  • Other significant neurological disorder
  • History of dementia
  • Patients with post-operative complications or adverse effects (e.g. ON stimulation dystonias) that affect patient safety or confound the experiment will be excluded from further study
  • Pregnant women
  • Known radiation exposure within the last year that is determined to be unsafe when compounded with the expected radiation dose from intraoperative fluoroscopy to place ECoG strip

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Of Minnesota

Minneapolis, Minnesota, 55445, United States

RECRUITING

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

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

Central Study Contacts

Emily Weatherill

CONTACT

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 12, 2022

First Posted

December 20, 2022

Study Start

March 28, 2023

Primary Completion (Estimated)

March 1, 2027

Study Completion (Estimated)

March 1, 2028

Last Updated

January 26, 2026

Record last verified: 2026-01

Locations