Evaluation of [18F]RO6958948 as Tracer for Positron Emission Tomography (PET) Imaging of Tau Burden in Alzheimer's Disease Participants

NCT ID: NCT02792179

Last Updated: 2017-11-01

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

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

4 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-07-19

Study Completion Date

2016-09-28

Brief Summary

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This is a longitudinal, follow-up study in participants with Alzheimer's disease (AD) who previously participated in study BP29409 (NCT02187627). This study is designed to assess the longitudinal change of Tau pathology in the brain of participants with AD using the PET ligand \[18F\]RO6958948 and to assess the safety and tolerability of PET ligand.

Detailed Description

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Conditions

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Alzheimer's Disease

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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[18F]RO6958948

Each participant will receive a single intravenous (IV) dose of \[18F\]RO6958948 and a single PET scan approximately 9-24 months after the baseline scan (in Study BP29409).

Group Type EXPERIMENTAL

[18F]RO6958948

Intervention Type DRUG

Radiolabeled low molecular weight compound, administered as single IV injection. The mass dose of \[18F\]RO6958948 injected will be less than or equal to (\</=) 10 micrograms (µg), injection volume \</=20 mL. Target injected activity for \[18F\]RO6958948 will be 370 megaBecquerel (MBq) (10 millicurie \[mCi\]).

Interventions

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[18F]RO6958948

Radiolabeled low molecular weight compound, administered as single IV injection. The mass dose of \[18F\]RO6958948 injected will be less than or equal to (\</=) 10 micrograms (µg), injection volume \</=20 mL. Target injected activity for \[18F\]RO6958948 will be 370 megaBecquerel (MBq) (10 millicurie \[mCi\]).

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* AD participants previously scanned with \[18F\]RO6958948 in Roche Study BP29409
* Agreement to use highly effective contraception measures
* Body mass index (BMI) between 18 and 32 Kilograms per square meter (kg/m\^2)
* A study partner able to accompany the participant to all visits and answer questions about the participant
* In the opinion of investigator, based on the medical history and physical examination, can safely tolerate tracer administration and the scanning procedures
* Documented positive visual read (as per local procedures for florbetapir or similar procedures for other amyloid tracers) of an amyloid PET scan, which in the opinion of the principal investigator is consistent with a diagnosis of AD

Exclusion Criteria

* History or presence of any clinically relevant hematological, hepatic, respiratory, cardiovascular, renal, metabolic, endocrine, or central nervous system disease or other medical conditions that are not well controlled, may put the participant at risk, could interfere with the objectives of the study, or make the participant unsuitable for participation in the study for any other reason in the opinion of the principal investigator
* Clinically relevant pathological findings in physical examination, electrocardiogram, or laboratory values at the screening assessment that could impact participant safety
* Known history of clinically significant infectious disease including autoimmune deficiency syndrome (AIDS) or serological indication of acute/chronic hepatitis B or C or Human Immuno Virus infection
* Women of childbearing potential must not be pregnant, or nursing and serum human chorionic gonadotropin (HCG) must be negative at the time of Screening Visit 1, and urine HCG must be negative on all subsequent visits
* Loss or donation of more than 450 milliliters (mL) blood in the 4 months before screening or donation of plasma within 14 days of screening
* Unsuitable veins for repeated venipuncture
* History of drug or alcohol abuse or positive result from urine screen for drugs of abuse
* Has had or is planning to have exposure to ionizing radiation that in combination with the study-related tracer administrations and scanning procedures would result in a cumulative exposure that exceeds the recommended annual exposure limit
* Presence of pacemakers; aneurysm clips; artificial heart valves; ear implants; foreign metal objects in the eyes, skin, or body, or any other circumstance that would contraindicate a magnetic resonance imaging (MRI) scan
* History of, or suffers from, claustrophobia or feels that he or she will be unable to lie still on their back in the MRI or PET scanner
* Has received treatment that targeted amyloid-beta or tau within the last 24 months
Minimum Eligible Age

25 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hoffmann-La Roche

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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Johns Hopkins Medical Institutions, Johns Hopkins Outpatient Center

Baltimore, Maryland, United States

Site Status

Countries

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United States

Other Identifiers

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BP39126

Identifier Type: -

Identifier Source: org_study_id