A Diagnostic Test for Dementia With Lewy Bodies

NCT ID: NCT05479552

Last Updated: 2025-01-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-08-15

Study Completion Date

2025-10-31

Brief Summary

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The Syn-D Study will be evaluating α-synuclein in patients with suspected MCI-AD and MCI-DLB. Using a simple diagnostic test will improve clinical accuracy in diagnosing, earlier diagnosis, and distinguish between neurodegenerative diseases.

Detailed Description

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In collaboration with approximately 10 centers that specialize in DLB and dementia we will recruit a total of 80 individuals for the study: 40 subjects with suspected MCI-DLB and 40 with suspected MCI-AD will be recruited. All subjects will be enrolled into a 12 month longitudinal study where skin biopsies will be performed at 3 sites on each patients at 12 month intervals (baseline and 1 year). Detailed quantified examination, cognitive evaluation, history, and questionnaires will be performed at each visit and will be reviewed by a central panel of disease experts to confirm the diagnosis.

Subjects enrolled in the study will have baseline evaluations and follow up visits at 12 months to define any changes to clinical diagnosis. Skin biopsies will be repeated at the 12 month follow up visit to determine the rate of P-SYN accumulation over time and rates of nerve fiber degeneration within punch skin biopsies.

Conditions

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MCI-AD, Early Stage Alzheimer's Disease MCI-DLB, Early Stage Dementia With Lewy Bodies

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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MCI-AD

Will be diagnosed using 'preclinical AD' criteria of mild cognitive impairment supported by a positive biomarker for AD. MCI defined as: 1. History of cognitive decline, noticed by either the patient, family member(s) or a medical practitioner but still independent in most complex daily activities. 2. Documentation of cognition not normal e.g., by MoCA or neuropsychological testing; 3. Does not meet the definition of dementia with MOCA \<18 or global CDR 1 or greater (although exceptions may exist with appropriate justification). 4. Supportive AD biomarker (has positive biomarkers for both Aβ and neuronal injury using CSF or neuroimaging).

Syn-One Test

Intervention Type DIAGNOSTIC_TEST

CND Life Sciences is expanding the utility of its diagnostic technology, the Syn-One Test, to pathologically distinguish between early DLB and Alzheimer's disease to prevent misdiagnoses and establish the relationship between progression and α-synuclein deposition by measuring α- synuclein accumulation in patient's nerve fibers using a simple skin punch biopsy.

MCI-DLB

Will be diagnosed as prodromal probable MCI-DLB based on consensus criteria using 2 or more core clinical features of DLB (with or without the presence of biomarkers) or 1 or more core clinical features with 1 or more indicative biomarkers (reduced dopamine transporter uptake in basal ganglia demonstrated by SPECT or PET reduced Iodine-MIBG uptake on myocardial scintigraphy, PSG confirmation of REM without atonia).

Syn-One Test

Intervention Type DIAGNOSTIC_TEST

CND Life Sciences is expanding the utility of its diagnostic technology, the Syn-One Test, to pathologically distinguish between early DLB and Alzheimer's disease to prevent misdiagnoses and establish the relationship between progression and α-synuclein deposition by measuring α- synuclein accumulation in patient's nerve fibers using a simple skin punch biopsy.

Interventions

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Syn-One Test

CND Life Sciences is expanding the utility of its diagnostic technology, the Syn-One Test, to pathologically distinguish between early DLB and Alzheimer's disease to prevent misdiagnoses and establish the relationship between progression and α-synuclein deposition by measuring α- synuclein accumulation in patient's nerve fibers using a simple skin punch biopsy.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. Men and women 50 to 85 years of age
2. Clinical diagnosis of mild cognitive impairment, and a presumed etiology of DLB or AD at enrollment

Exclusion Criteria

1. Clinical evidence of severe peripheral vascular disease (Fazekas score of ≥ 3, or a large vessel stroke of ≥ 2 cm, history of ulceration, poor wound healing, vascular claudication)
2. Clinically active coronary artery or cerebrovascular disease
3. Current smoker or alcoholism
4. History of allergic reaction to local anesthesia (for biopsy collection)
5. Use of anticoagulants (aspirin or Plavix alone is allowed)
6. Significantly impaired wound healing or history of scarring or keloid formation
Minimum Eligible Age

50 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute on Aging (NIA)

NIH

Sponsor Role collaborator

CND Life Sciences

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Todd Levine, MD

Role: PRINCIPAL_INVESTIGATOR

CND Life Sciences

Locations

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CND Life Sciences

Scottsdale, Arizona, United States

Site Status

University of California San Diego

La Jolla, California, United States

Site Status

CenExel RMCR

Englewood, Colorado, United States

Site Status

University of Miami

Boca Raton, Florida, United States

Site Status

Neurology One

Winter Park, Florida, United States

Site Status

Ochsner Research

New Orleans, Louisiana, United States

Site Status

Mass General Hospital

Boston, Massachusetts, United States

Site Status

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status

Headlands Research

Plymouth, Massachusetts, United States

Site Status

University of Michigan

Ann Arbor, Michigan, United States

Site Status

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status

University of Utah

Salt Lake City, Utah, United States

Site Status

Countries

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United States

References

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Gibbons CH, Freeman R, Bellaire B, Adler CH, Moore D, Levine T. Synuclein-One study: skin biopsy detection of phosphorylated alpha-synuclein for diagnosis of synucleinopathies. Biomark Med. 2022 May;16(7):499-509. doi: 10.2217/bmm-2021-0646. Epub 2022 Mar 11.

Reference Type BACKGROUND
PMID: 35272481 (View on PubMed)

Gibbons CH, Galasko D, Press D, Claassen D, Levine T, Freeman R. The Syn-D study: detection of cutaneous phosphorylated alpha-synuclein in mild cognitive impairment a trial protocol. Biomark Med. 2025 Jul;19(13):501-508. doi: 10.1080/17520363.2025.2520154. Epub 2025 Jun 16.

Reference Type DERIVED
PMID: 40523872 (View on PubMed)

Other Identifiers

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R44AG076072

Identifier Type: NIH

Identifier Source: secondary_id

View Link

101

Identifier Type: -

Identifier Source: org_study_id

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