NCT03234478

Brief Summary

Every year, approximately 9,000 Parkinson disease (PD) patients undergo deep brain stimulator (DBS) placement into the subthalamic nucleus (STN-DBS). Studies suggest that PD patients with mutations in the glucocerebrosidase (GBA) gene are at high risk for cognitive impairment and approximately 10-17% of subjects undergoing DBS carry GBA mutations. There may be an interaction between STN-DBS, which also impairs cognitive function, and GBA, resulting in worsened cognitive function. This project will 1) determine the relationship between GBA mutation status and post-operative STN-DBS cognitive function, 2) broaden genotype-phenotype relationships of GBA mutation carriers and 3) provide scientific knowledge regarding the longitudinal cognitive effects of DBS in GBA mutation carriers through repeated neuropsychological testing.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
150

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jul 2017

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

July 1, 2017

Completed
24 days until next milestone

First Submitted

Initial submission to the registry

July 25, 2017

Completed
6 days until next milestone

First Posted

Study publicly available on registry

July 31, 2017

Completed
6.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2024

Completed
Last Updated

November 21, 2024

Status Verified

November 1, 2024

Enrollment Period

7 years

First QC Date

July 25, 2017

Last Update Submit

November 20, 2024

Conditions

Keywords

deep brain stimulationcognitionyoung onset Parkinson disease

Outcome Measures

Primary Outcomes (1)

  • Mattis Dementia Rating Scale

    scale to assess global cognition

    2 years

Secondary Outcomes (3)

  • NIH toolbox cognition battery

    1 year

  • Neuro-QoL

    2 years

  • PROMIS

    2 years

Study Arms (4)

GBA mutation carriers without DBS

Parkinson's disease patients who have moderate to advanced disease but have not undergone deep brain stimulation. Subjects will be tested for GBA mutation status as part of this study.

Other: cognitive assessments

non-mutation carriers without DBS

Parkinson's disease patients who have moderate to advanced disease but have not undergone deep brain stimulation. Subjects will be tested for GBA mutation status as part of this study.

Other: cognitive assessments

GBA mutation carriers with DBS

Parkinson's disease patients who have moderate to advanced disease and have undergone deep brain stimulation. Subjects will be tested for GBA mutation status as part of this study.

Other: cognitive assessments

non-mutation carriers with DBS

Parkinson's disease patients who have moderate to advanced disease and have undergone deep brain stimulation. Subjects will be tested for GBA mutation status as part of this study.

Other: cognitive assessments

Interventions

Cognitive assessments will be performed at baseline, 1 year, and 2 years, depending on subject cohort placement

GBA mutation carriers with DBSGBA mutation carriers without DBSnon-mutation carriers with DBSnon-mutation carriers without DBS

Eligibility Criteria

Age30 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Parkinson's disease subjects with onset of symptoms under age 60 with moderate to advanced disease. Subjects can be with OR without deep brain stimulation.

You may qualify if:

  • Parkinson's disease
  • onset of symptoms under age 60
  • at least 5 years of disease
  • with OR without deep brain stimulation

You may not qualify if:

  • dementia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rutgers-Robert Wood Johnson Medical School

New Brunswick, New Jersey, 08901, United States

Location

Related Publications (1)

  • Pal GD, Hall D, Ouyang B, Phelps J, Alcalay R, Pauciulo MW, Nichols WC, Clark L, Mejia-Santana H, Blasucci L, Goetz CG, Comella C, Colcher A, Gan-Or Z, Rouleau GA, Marder K; Consortium on Risk for Early Onset Parkinson's Disease (CORE-PD) Investigators. Genetic and Clinical Predictors of Deep Brain Stimulation in Young-Onset Parkinson's Disease. Mov Disord Clin Pract. 2016 Sep-Oct;3(5):465-471. doi: 10.1002/mdc3.12309. Epub 2016 Jan 18.

Biospecimen

Retention: SAMPLES WITH DNA

blood will be retained for analysis of GBA metabolites.

MeSH Terms

Conditions

Parkinson DiseaseGenetic Predisposition to DiseaseCognitive DysfunctionParkinsonian Disorders

Condition Hierarchy (Ancestors)

Basal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesDisease SusceptibilityDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsCognition DisordersNeurocognitive DisordersMental Disorders

Study Officials

  • Gian Pal

    Rutgers University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor of Neurological Sciences

Study Record Dates

First Submitted

July 25, 2017

First Posted

July 31, 2017

Study Start

July 1, 2017

Primary Completion

June 30, 2024

Study Completion

June 30, 2024

Last Updated

November 21, 2024

Record last verified: 2024-11

Locations