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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/ct2/show/NCT05490576




Registration number
NCT05490576
Ethics application status
Date submitted
4/08/2022
Date registered
5/08/2022
Date last updated
28/02/2024

Titles & IDs
Public title
Tau And Connectomics In TES Study
Scientific title
Pilot Phase 1 Clinical Trial of PET Scanning in Tau Protein Deposition and Connectome Analysis in Traumatic Encephalopathy Syndrome (TES) Cohort With a Probable Chronic Traumatic Encephalopathy (CTE) Pattern of Neurodegenerative Disease
Secondary ID [1] 0 0
CNTES01
Universal Trial Number (UTN)
Trial acronym
TACIT
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Chronic Traumatic Encephalopathy 0 0
Traumatic Encephalopathy 0 0
Head Injury Trauma 0 0
Cognitive Impairment 0 0
Neurodegenerative Diseases 0 0
Condition category
Condition code
Neurological 0 0 0 0
Neurodegenerative diseases
Injuries and Accidents 0 0 0 0
Other injuries and accidents
Neurological 0 0 0 0
Other neurological disorders

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Other - [18F] PI-2620 Tau Ligand

Experimental: [18F] PI-2620 PET Tau Ligand Active Agent - Participants receive dose of active agent [18F] PI-2620 PET Tau Ligand during dynamic PET scan acquisition


Treatment: Other: [18F] PI-2620 Tau Ligand
Tau binding ligand
Intervention code [1] 0 0
Treatment: Other
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Detection of Tau protein 3R and 4R isoforms in patients who meet the Traumatic Encephalopathy Syndrome (TES) criteria, as defined by the National Institute of Neurological Disorders and Stroke.
Timepoint [1] 0 0
2 weeks
Secondary outcome [1] 0 0
Detect disease anomalies on MRI which correlated with brain region tau deposition
Timepoint [1] 0 0
2 weeks
Secondary outcome [2] 0 0
Compare PET tau imaging PI-2620 results in TES to prior studies in Alzheimer's disease using the same ligand
Timepoint [2] 0 0
2 weeks

Eligibility
Key inclusion criteria
- The participant must have full capacity to understand the purpose and risks of the
study to provide informed consent.

- All participants must be between 40 to 70 years of age.

- Must meet the Traumatic Encephalopathy Syndrome criteria as defined by the National
Institute of Neurological Disorders and Stroke Consensus Diagnostic Criteria for
Traumatic Encephalopathy Syndrome, Katz. D, et. al. Neurology, 2021.

- Participants must demonstrate that they have a cognitive decline, evident by
performance on neuropsychological testing.

- Standard of care blood screening within 12 months of consent to the study to exclude
other medical conditions which may cause cognitive decline, such as heavy metal
toxicology.

- A PET scan within 6 months of consent to the study that is not consistent with
Alzheimer's disease.

- Participants must consent to undertake Positron Emission Tomography (PET) with
intravenous [18F] PI-2620 PET tracer ligand.

- Participants must be able to lie still, on their back for up to 60 minutes for the
scans.

- Participants must not have any metal in their bodies e.g. pacemakers, aneurysm clips
which are contraindications of MRI.

- Participants must consent to the use of their medical records and medical history,
including but not limited to pathology results, previous imaging results and
neuropsychology results
Minimum age
40 Years
Maximum age
70 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- Participants will be excluded if they do not meet all the inclusion criteria.

- Participants must not be diagnosed with or suspected to be suffering from any other
neurodegenerative disease, or cerebral disease affecting cognition as identified by
results of neuropsychological evaluation or neurologist consultation.

- Participants will be excluded if Staff at Macquarie Medical Imaging determine that the
participant is not suitable for imaging, for any reason.

- Participants will be excluded if they have kidney and/or liver dysfunction as
diagnosed by a doctor

Study design
Purpose of the study
Diagnosis
Allocation to intervention
N/A
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Phase 1
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Active, not recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
3/02/2023
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
31/12/2024
Actual
Sample size
Target
Accrual to date
Final
12
Recruitment in Australia
Recruitment state(s)
NSW
Recruitment hospital [1] 0 0
Macquarie Medical Imaging - Macquarie Park
Recruitment postcode(s) [1] 0 0
2109 - Macquarie Park

Funding & Sponsors
Primary sponsor type
Other
Name
Macquarie University, Australia
Address
Country
Other collaborator category [1] 0 0
Commercial sector/Industry
Name [1] 0 0
Omniscient Neurotechnology
Address [1] 0 0
Country [1] 0 0
Other collaborator category [2] 0 0
Commercial sector/Industry
Name [2] 0 0
Life Molecular Imaging GmbH
Address [2] 0 0
Country [2] 0 0

Ethics approval
Ethics application status

Summary
Brief summary
This pilot study aims to assess if participants that meet the criteria for a TES diagnosis
have a specific tau deposition profile on PET scanning using the PET tau binding ligand -
[18F] PI-2620. It is hoped this study will highlight potential diagnostic tests of TES
diagnosis, the in-life correlate of CTE.
Trial website
https://clinicaltrials.gov/ct2/show/NCT05490576
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Rowena Mobbs, MBBS, PhD
Address 0 0
MQ Health
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries