Evaluation of Flortaucipir PET Signal and Cognitive Change in Early Alzheimer's Disease

NCT ID: NCT03901105

Last Updated: 2020-08-28

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

205 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-03-28

Study Completion Date

2019-04-28

Brief Summary

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This study will evaluate whether visual interpretation of flortaucipir-PET (positron emission tomography) scans, examining patterns of tracer uptake at baseline, can predict the rate of clinically-meaningful cognitive decline due to AD after 18 months. All scans are acquired from cohorts of a previously completed study, I8D-MC-AZES (NCT02245737, lanabecestat, Eli Lilly and Company sponsor).

Detailed Description

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Conditions

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Alzheimer Disease

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Physician PET scan readers are participants, blinded to demographic and clinical data from the source PET scans.
Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

PET scans were obtained in an open-label fashion.

Study Groups

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Flortaucipir PET Scan

No study drug will be administered. Scans previously acquired from Study I8D-MC-AZES (NCT02245737, Eli Lilly and Company sponsor) will be read by independent, blinded readers.

Group Type EXPERIMENTAL

flortaucipir F18

Intervention Type DRUG

No study drug will be administered. Scans previously acquired from Study I8D-MC-AZES (NCT02245737, Eli Lilly and Company sponsor) at baseline will be read by independent, blinded readers. IV injection, 240 megabecquerel (MBq) (6.5 mCi), single dose in AZES

Brain PET Scan

Intervention Type PROCEDURE

positron emission tomography (PET) scan of the brain

Interventions

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flortaucipir F18

No study drug will be administered. Scans previously acquired from Study I8D-MC-AZES (NCT02245737, Eli Lilly and Company sponsor) at baseline will be read by independent, blinded readers. IV injection, 240 megabecquerel (MBq) (6.5 mCi), single dose in AZES

Intervention Type DRUG

Brain PET Scan

positron emission tomography (PET) scan of the brain

Intervention Type PROCEDURE

Other Intervention Names

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18F-AV-1451 [F-18]T807 LY3191748

Eligibility Criteria

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Inclusion Criteria

Scan Reader Criteria (5 total readers):

* Board-certified in radiology or nuclear medicine
* Professional experience interpreting PET scans

Scan Criteria (205 total scans):

* Former enrollment in AZES Study
* Flortaucipir scan at baseline
* clinical dementia rating - sum of boxes (CDR-SB) assessment at 18 months

Scan Study Population (AZES Study):

* 55 to 85 years
* MCI due to AD or probable AD by National Institute on Aging-Alzheimer's Association criteria (Albert 2011
* mini-mental status exam (MMSE) of 20 to 30 inclusive
* CDR global score of 0.5 (MCI), or 0.5 or 1 (AD) with a memory box score ≥ 0.5, and a score of ≤85 on the Delayed Memory Index of the Repeatable Battery for the Assessment of Neuropsychological Status.
* Amyloid positive status confirmed by florbetapir PET or lumbar puncture
Minimum Eligible Age

55 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Avid Radiopharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Study Director

Role: STUDY_DIRECTOR

Avid Radiopharmaceuticals

Locations

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American College of Radiology

Philadelphia, Pennsylvania, United States

Site Status

Countries

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United States

References

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Lu M, Pontecorvo MJ, Devous MD Sr, Arora AK, Galante N, McGeehan A, Devadanam C, Salloway SP, Doraiswamy PM, Curtis C, Truocchio SP, Flitter M, Locascio T, Devine M, Zimmer JA, Fleisher AS, Mintun MA; AVID Collaborators. Aggregated Tau Measured by Visual Interpretation of Flortaucipir Positron Emission Tomography and the Associated Risk of Clinical Progression of Mild Cognitive Impairment and Alzheimer Disease: Results From 2 Phase III Clinical Trials. JAMA Neurol. 2021 Apr 1;78(4):445-453. doi: 10.1001/jamaneurol.2020.5505.

Reference Type DERIVED
PMID: 33587110 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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18F-AV-1451-PX01

Identifier Type: -

Identifier Source: org_study_id

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