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Advancing Pre-operative Targeting for Deep Brain Stimulation in the Globus Pallidus Internus

Advancing Pre-operative Targeting for Deep Brain Stimulation in the Globus Pallidus Internus: Functional Segmentation Based on Probabilistic Tractography

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03600740
Enrollment
1
Registered
2018-07-26
Start date
2018-08-17
Completion date
2020-05-18
Last updated
2021-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson Disease

Keywords

Parkinson Disease, Deep Brain Stimulation, Diffusion Tensor Imaging

Brief summary

In the proposed pilot project, MRI data will be prospectively collected to show the feasibility of the segmentation algorithm and the potential relation to final lead positioning. Patients will be selected from those undergoing GPi DBS placement. This pilot data will serve as a basis for pursuing funding for a larger trial evaluating the prospective ability of the 3T targeting study to improve outcomes and decrease complications in GPi DBS placement. Improved outcomes and patient experience would be expected to further contribute to our facility as a center of excellence for treatment of movement disorders.

Interventions

DBS Programming may be temporarily altered based on imaging data to measure a change in clinical symptoms.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patient with the diagnosis of Parkinson's Disease selected for placement of globus pallidus internus (GPi) deep brain stimulator (DBS)

Design outcomes

Primary

MeasureTime frameDescription
Change in Unified Parkinson's Disease Rating Scale III (UPDRS-III)3 monthsPre-operative and post-operative UPDRS-III will be assessed to measure symptom improvement and correlated with imaging data.

Countries

United States

Participant flow

Participants by arm

ArmCount
GPi DBS
Patients selected to undergo GPi DBS placement will be eligible for enrollment in the study. In addition to standard-of-care tests, subjects will undergo an MRI consisting of the proposed novel imaging protocol prior to placement of DBS. The patient will subsequently undergo standard-of-care therapy for DBS placement. Once the stimulator has been programmed post-operatively, the stimulation parameters and corresponding clinical changes will be collected and used to model the volume of activated tissue. The patient will additionally undergo a follow-up MRI used to localize the electrode within the brain to further localize the volume of activated tissue. DBS Programming: DBS Programming may be temporarily altered based on imaging data to measure a change in clinical symptoms.
1
Total1

Withdrawals & dropouts

PeriodReasonFG000
Overall StudySurgical plan was altered-subject not eligible1

Baseline characteristics

CharacteristicGPi DBS
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
1 Participants
Region of Enrollment
United States
1 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 1
other
Total, other adverse events
0 / 1
serious
Total, serious adverse events
0 / 1

Outcome results

Primary

Change in Unified Parkinson's Disease Rating Scale III (UPDRS-III)

Pre-operative and post-operative UPDRS-III will be assessed to measure symptom improvement and correlated with imaging data.

Time frame: 3 months

Population: Study was terminated due to delays in IRB approval and interval start of a competing study. Surgical plan was altered-subject not eligible. Data was not collected or analyzed.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026