Synaptic Density and Progression of Parkinson's Disease.
Study Details
Study Description
Brief Summary
AIM: To assess synaptic density and to investigate the potential relationship of regional synaptic loss with motor and non-motor symptoms and with disease progression in the human brain in vivo in patients with PD.
DESIGN: We will include 30 PD patients and 20 healthy controls. All subjects will undergo a clinical examination, with comprehensive assessment of motor and non-motor symptoms, and imaging evaluation consisting of 11C-UCB-J PET-CT and 18F-FE-PE2I PET-MR at baseline and after 2 years.
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: PD patients At baseline and 2-year follow-up |
Other: 11C-UCB-J PET-CT
Positron Emission Tomography (PET) of synaptic vesicle protein 2A (SV2A) using the radioligand 11C-UCB-J.
Other: 18F-PE2I PET-MR
Positron Emission Tomography (PET) of dopamine transporter (DAT) using the radioligand 18F-FE-PE2I, and brain MRI performed simultaneously.
|
Active Comparator: Healthy controls At baseline and 2-year follow-up |
Other: 11C-UCB-J PET-CT
Positron Emission Tomography (PET) of synaptic vesicle protein 2A (SV2A) using the radioligand 11C-UCB-J.
Other: 18F-PE2I PET-MR
Positron Emission Tomography (PET) of dopamine transporter (DAT) using the radioligand 18F-FE-PE2I, and brain MRI performed simultaneously.
|
Outcome Measures
Primary Outcome Measures
- Baseline differences in synaptic density. [Data analysis wel be done when all subjects have undergone the baseline evaluation.]
Baseline differences (%) in synaptic density between patients and controls.
- Correlations between clinical scores and synaptic density. [Data analysis wel be done when all subjects have undergone the 2-year follow-up evaluation.]
Correlations between clinical scores and synaptic density in the patient group.
- Differences in the rate of decline of synaptic density. [Data analysis wel be done when all subjects have undergone the 2-year follow-up evaluation.]
Differences (%) in the rate of decline of synaptic density between patients and controls.
- Correlations between progression of the clinical scores and decline of synaptic density. [Data analysis wel be done when all subjects have undergone the 2-year follow-up evaluation.]
Correlations between progression of the clinical scores and decline of synaptic density in the patient group.
Secondary Outcome Measures
- Baseline differences in DAT levels. [Data analysis wel be done when all subjects have undergone the baseline evaluation.]
Baseline differences (%) in DAT levels between patients and controls.
- Correlations between clinical scores and DAT levels. [Data analysis wel be done when all subjects have undergone the 2-year follow-up evaluation.]
Correlations between clinical scores and DAT levels in the patient group.
- Differences in the rate of decline of global and DAT levels. [Data analysis wel be done when all subjects have undergone the 2-year follow-up evaluation.]
Differences (%) in the rate of decline of global and DAT levels between patients and controls.
- Correlations between progression of the clinical scores and decline of DAT levels. [Data analysis wel be done when all subjects have undergone the 2-year follow-up evaluation.]
Correlations between progression of the clinical scores and decline of DAT levels in the patient group.
Eligibility Criteria
Criteria
Inclusion Criteria:
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PD diagnosis based on MDS clinical diagnostic criteria for Parkinson's disease
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Less than 5 years disease duration since motor symptom onset according to the patient
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Hoehn-Yahr stage 1 or 2 in medication ON state
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Capacity to understand the informed consent form
Exclusion Criteria:
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Neuropsychiatric diseases other than PD
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Major internal medical diseases
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Relevant abnormalities on MR brain
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History of alcohol or drug abuse
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Contraindications for MR
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Pregnancy
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Previous participation in other research studies involving ionizing radiation with > 1 mSv over past 12 months.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | UZ Leuven | Leuven | Vlaams-Brabant | Belgium | 3000 |
Sponsors and Collaborators
- Universitaire Ziekenhuizen Leuven
Investigators
- Principal Investigator: Wim Vandenberghe, MD, PhD, UZ Leuven
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- s61477