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Distinguishing Between Alzheimer's Disease, Lewy Body Dementia, and Parkinson's Disease

Distinguishing Between Alzheimer's Disease, Lewy Body Dementia, and Parkinson's Disease

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03019757
Enrollment
76
Registered
2017-01-13
Start date
2018-08-30
Completion date
2026-12-31
Last updated
2025-03-30

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

Conditions

Alzheimer's Disease, Lewy Body Dementia, Parkinson's Disease

Brief summary

The study is designed to characterize the clinical, neuropsychological, polysomnographic, and neuroimaging findings among subjects with Alzheimer's disease, Lewy Body dementia, and Parkinsons' Disease.

Detailed description

The study will use structural and functional MRIs, daTscans, fluorodeoxyglucose (FDG) PET scans, Amyvid PET scans, polysomnographs, neuropsychological testing, cerebrospinal fluid in willing participants to distinguish between a diagnosis of Alzheimer's disease, Lewy Body dementia, and Parkinson's Disease. All subjects will have a clinical evaluation, physical examination including vital signs and orthostatic blood pressures and pulses, neurological examination including UPDRS evaluation, genetic blood sample collection, neuropsychological testing, polysomnogram, and neuroimaging. The study partner will also be interviewed for completion of all of the behavioral and functional measures.

Interventions

RADIATIONDaTscan

A functional imaging of the dopamine transporter using the radioligand \[123I\]FP-CIT

RADIATIONF18-AV-45

A brain scan to to measure the extent of amyloid deposition

RADIATIONFDG-PET

a brain scan measuring total and regional cerebral glucose metabolism wtih positron emission tomographs with 2-(18F)

GENETICAPOE genotype

10 ml of whole blood will be drawn and shipped to Athena Diagnostics for genetic testing.

PROCEDUREPolysomnogram

Overnight sleep study

BEHAVIORALClinical Assessment

Clinical assessments include cognitive, behavioral, and motor evaluations

Sponsors

Avid Radiopharmaceuticals
CollaboratorINDUSTRY
Mangurian Foundation
CollaboratorUNKNOWN
Douglas Scharre
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

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

Inclusion criteria

* Subjects must meet the standard clinical criteria of the syndromes of interest * All subjects must have enough cognitive abilities to complete study procedures, which will be operationally defined as having a Mini Mental State Examination (MMSE) score greater or equal to 10. * Subjects must be on stable cognitive and psychoactive medication regimen for the preceding four weeks of enrollment. * Subjects must have a responsible study partner that either lives with them or is in regular contact with them at least 4 out of 7 days per week. * Subjects must have visual and auditory acuity adequate for testing.

Exclusion criteria

* Any other condition (other than the primary diagnosis), which in the opinion of the investigators might contribute to the syndrome of dementia or complicate its assessment. * active medical disorder that could preclude participation in this protocol * Women who are pregnant or are breast feeding * severe renal impairment as defined by glomerular filtration rate (GFR) less than 30 (may have increased radiation exposure with the DaTscan). * Subjects in whom English is not the 1st language * Subjects with educational level less than 12 years * Subjects who have ever participated in an experimental study with an amyloid targeting agent unless it can be documented that the subject received only placebo during the course of the trial.

Design outcomes

Primary

MeasureTime frameDescription
PolysomnogramBaselineparticipants will have an overnight standard clinical polysomnogram with added limb leads assessing for presence of sleep apnea, periodic limb movements, and rapid eye movement (REM) sleep characteristics
Positron emission tomography with 2-(18F) fluoro-2-deoxy-d-glucose (FDG-PET)BaselineImaging to determine total and regional cerebral glucose metabolism
Brain MRIBaselineImaging including a resting state functional MRI, diffusion tensor imaging, and anatomic imaging
Mini Mental State Examination (MMSE-1)BaselineGlobal neuropsychological measure
Wechsler Adult Intelligence Scale 4th edition (WAIS-4) VocabularyBaselineNeuropsychological measure of premorbid IQ estimate
Wechsler Adult Intelligence Scale 4th edition (WAIS-4) Digit SpanBaselineNeuropsychological measure of attention
Wechsler Adult Intelligence Scale 4th edition (WAIS-4) Block DesignBaselineNeuropsychological measure of visuospatial perception/ reasoning
Wechsler Adult Intelligence Scale 4th edition (WAIS-4) Matrix ReasoningBaselineNeuropsychological measure of executive functioning
Wechsler Adult Intelligence Scale 4th edition (WAIS-4) Reliable Digits (embedded measure)BaselineNeuropsychological measure of effort
Wechsler Memory Scale 3rd ed. (WAIS-3) Spatial SpanBaselineNeuropsychological measure of attention
Wechsler Memory Scale 3rd ed. (WAIS-3) Logical Memory 1 & 2BaselineNeuropsychological measure of memory
Trail Making Test ABaselineNeuropsychological measure of executive functioning/psychomotor processing speed
Trail Making Test BBaselineNeuropsychological measure of executive functioning
Boston Naming TestBaselineNeuropsychological measure of language
Controlled Oral Word Association Test (COWAT)- Animal NamingBaselineNeuropsychological measure of language/verbal fluency
Judgment of Line Orientation Standardized TestBaselineNeuropsychological measure of visuospatial perception/ reasoning
Brief Visuospatial Memory Test (BVMT)BaselineNeuropsychological measure of memory
California Verbal Learning Test (CVLT-2)BaselineNeuropsychological measure of memory
Wisconsin Card Sorting TaskBaselineNeuropsychological measure of executive functioning
California Verbal Learning Test (CVLT-2) Forced Choice (embedded measure)BaselineNeuropsychological measure of effort
Self Administered Gerocognitive Examination- A brief cognitive assessment instrument for mild cognitive impairment and early dementiaBaselineGlobal neuropsychological measure
Apolipoprotein E (APOE) Genotyping of a whole blood sampleBaseline10 ml of whole blood will be drawn for APOE genotyping
Clinical Dementia Rating Scale (CDR)BaselineGlobal cognitive and functional measure
The Activities of Daily Living (ADL) Standardized ScaleBaselineFunctional measure
Mayo Fluctuations ScaleBaselineBehavioral measure
Neuropsychiatric Inventory (NPI)BaselineBehavioral measure
Beck Depression Inventory 2nd ed.BaselineBehavioral measure
The Modified Somatic Perception QuestionnaireBaselineBehavioral measure
The Epworth Sleepiness ScaleBaselineSleep measure
Mayo Sleep Questionnaire-InformantBaselineSleep measure
Functional Outcomes of Sleep Questionnaire-10BaselineSleep measure
Part III and IV of the Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS)BaselineGait, Mobility, and Coordination Measure
Berg Balance Scale (BBS)BaselineGait, Mobility, and Coordination Measure
Florbetapir (F18-AV-45) positron emission tomography (amyloid PET)BaselineImaging to determine extent of amyloid deposition
Single-photon emission computed tomography (SPECT) with the radioligand [123I]FP-CITBaselineFunctional imaging of the dopamine transporter

Other

MeasureTime frameDescription
Post-mortem brain donation to The Ohio State University Neurodegenerative Disease Brain Tissue Repository, for clinicopathological correlationsPost mortemOptional outcome measure for patients post-mortem to asses for neuropathologic conditions
Lumbar Puncture to obtain cerebrospinal fluid (CSF) that will be stored for future potential evaluation of biomarkersBaselineOptional outcome measure which will be done to obtain samples of CSF

Countries

United States

Contacts

Primary ContactJennifer Icenhour
jennifer.icenhour@osumc.edu614-293-6882

Outcome results

None listed

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