About this trial
This study plans to analyze the molecular and clinical mechanisms of the relationship between the GBA mutations and Parkinson's disease. This will be assessed through the use of advanced neuroimaging techniques called PET (positron emission tomography) to study the accumulation of the tau protein and the dysfunction of acetylcholine and dopamine in the brain of people with a mutation in the GBA gene, with and without Parkinson's disease. The ingestigators will also use a technology-based assessment to study the typing patterns as possible biomarkers of early motor dysfunctions.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
heterozygous for a pathogenic GBA mutation (e.g., p.L444P, p.N370S) or polymorphism;
age 18 to 80 years.
Disqualifiers
co-occurrence of other neurological disorders;
implants that contraindicate the MRI scanning (e.g. cardiac pacemaker, ferromagnetic implants or devices);
severe claustrophobia;
intolerance to antiparkinsonian drug withdrawal (for GBA-PD subjects);
Trial population
People with a known pathogenic GBA gene mutation with or without PD.
Trial design
Cohort
Cross-sectional
Treatments tested in this trial
PET scan
Diagnostic test3 PET scans to analyze the dopamine metabolism, acetylcholine and tau protein deposition in the brain.
neuroQWERTY
Diagnostic testAnalysis of free-text typing in a computer and/or a touch-screen device.
Treatment groups
Trial outcomes
Primary outcomes
Acetylcholinesterase activity
11C-PMP PET
Tau protein deposition
11C-PBB3 PET
Dopaminergic denervation
11C-DTBZ PET
neuroQWERTY index
Typing analysis
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Pacific Parkinson's Research Centre
Lead sponsor
University of British Columbia
Collaborator
University of Washington
Collaborator
Oregon Health and Science University
Collaborator
Simon Fraser University
Collaborator
Michael J. Fox Foundation for Parkinson's Research
Collaborator
Silverstein Foundation
Collaborator
Weston Brain Institute
Collaborator