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Enrolling by invitationNCT03582488Updated Mar 19, 2026

Longitudinal Imaging Biomarkers of Disease Progression in DLB

A Phase 4 interventional study of 18F-Flortaucipir in Lewy Body Disease, sponsored by Kejal Kantarci. Enrolling by invitation at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-03-19.

Sponsored by Kejal Kantarci · Phase 4, Interventional, and Diagnostic

Phase
Phase 4
Study type
Interventional
Enrollment
135
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

The Researchers are trying to determine the paths of change in imaging biomarkers of Dementia with Lewy bodies (DLB) and their associations with rate of cognitive and functional decline.

Read the detailed description

The proposed project will enroll 90 subjects with probable DLB, 60 from Mayo Clinic Rochester (MCR) and 30 from Mayo Clinic Jacksonville (MCJ). Additionally, 45 controls will be enrolled, 30 from MCR and 15 from MCJ. We will obtain up to six assessments in each subject over the 5 years of the study, baseline, six month and annually thereafter. We will follow these cohorts with clinical and biospecimen data collection annually and once at six months, and CSF collection annually within the guidelines of the Parkinson's Disease Biomarker's Program (PDBP). Clinical neuroimaging will be performed annually and include: a) dopamine transporter imaging with Ioflupane (123I) SPECT (DaTscan) as the biomarker of LBD-related loss of dopaminergic activity, b) structural MRI AD- signature atrophy as the biomarker of AD-related neurodegeneration, c) β-amyloid (Aβ) deposition on PET as the biomarker of Aβ pathology. In patients from the MCR site, we will investigate AV-1451 PET. Since the specificity of AV-1451 PET is not established for tau deposition in DLB, we will investigate this biomarker in a subset of DLB patients to determine the pattern of AV-1451 uptake compared to clinically normal controls, and its association with atrophy, Aβ load and clinical disease progression in DLB.

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Conditions studied

  • Lewy Body Disease

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03

In context

Lewy Body Disease

231 studies on the registry are indexed under Lewy Body Disease; 89 are open to participants now.

This study's planned enrollment of 135 is above the median of 83 across 142 interventional studies indexed under Lewy Body Disease.

Browse Lewy Body Disease studies →

Lead sponsor

This is the only study on the registry with Kejal Kantarci as lead sponsor.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Diagnosis of probable DLB, at least 18 years of age, reliable informant who personally speaks with or sees the participant at least weekly, sufficiently fluent in English, must be willing and able to consent to the protocol and undergo up to 6 visits over 5 years, willing and able to undergo neuropsychological testing and no contraindication to MRI imaging.

Exclusion criteria

Exclusion Criteria:

  • Presence of another neurologic disorder which could impact findings, such as multiple sclerosis, brain tumors, etc., unwilling to return for follow-up yearly and undergo neuropsychological testing and MR imaging, if undergoing Tau imaging cannot have QT Prolongation, do not have a reliable informant.
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Study design

Phase
Phase 4
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
135 participants (estimated)

Study arms

  • Experimental
    Dementia with Lewy Bodies

    18F-Flortaucipir and 11C-Pittsburgh compound-B radioligands will be used for experimental PET imaging of beta-amyloid and neurofibrillary tau pathology

    Drug: 18F-Flortaucipir

Interventions

  • Drug18F-Flortaucipir

    Radioligands for PET imaging of beta-amyloid and neurofibrillary tangle tau pathology

    Also known as: 11C- Pittsburgh Compound-B

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What researchers measure

Primary outcomes

  1. Rate of change in 18F-Flortaucipir PET imaging and Pittsburgh compound-B PET imaging

    Cortical 18F-Flortaucipir and Global cortical Pittsburgh compound-B uptake will be measured in each participant over three years

    Time frame: Will be assessed 3 times annually over at least three years

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Study locations

2 sites
  • Mayo Clinic
    Jacksonville, Florida 32224, United States
  • Mayo Clinic
    Rochester, Minnesota 55905, United States
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References and documents

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 19, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03582488
Lead sponsor
Kejal Kantarci
Collaborators
National Institute of Neurological Disorders and Stroke (NINDS)
Responsible party
Kejal Kantarci (Principal Investigator, Mayo Clinic) — Sponsor-investigator
First posted
Jul 11, 2018
Start date
Jun 25, 2018
Primary completion
Sep 2027 (estimated)
Completion
Sep 2027 (estimated)
Last update
Mar 19, 2026

Study contacts

Kejal Kantarci, MD
principal investigator · Mayo Clinic

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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