Test-retest Study With [18F]PI-2620 in PSP-RS and NDC

NCT ID: NCT05187546

Last Updated: 2025-05-18

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE1
• Total Enrollment: 15 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-03-10
• Study Completion Date: 2024-03-05

Brief Summary

The overall goal of this protocol is to evaluate the imaging characteristics of [18F]PI-2620 using positron emission tomography (PET) in patients with progressive supranuclear palsy, Richardson's syndrome (PSP-RS)

Detailed Description

The imaging characteristics of [18F]PI-2620 using positron emission tomography (PET) in patients with progressive supranuclear palsy, Richardson's syndrome (PSP-RS) will be evaluated by a) determining the test-retest variability of the [18F]PI-2620 binding parameters in brain of patients with PSP-RS and non-demented controls (NDC).

Conditions

Progressive Supranuclear Palsy

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: DIAGNOSTIC
• Blinding Strategy: NONE

Study Groups

Imaging characteristics of [18F]PI-2620 for detection of Tau deposition in the brain of PSP patients

All eligible PSP patients will receive two injections of the investigational imaging agent \[18F\]PI-2620: at a baseline PET imaging session and at a follow-up PET imaging session to evaluate the test-retest imaging characteristics. 10 PSP patients will be required to complete the study arm.

Group Type: EXPERIMENTAL

[18F]-PI2620

Intervention Type: DRUG

\[18F\]PI-2620 is a radioactive diagnostic agent being developed for the indication of PET imaging of the brain to detect tau pathology in adult patients who are being evaluated for neurodegenerative decline. All patients will receive two administrations of \[18F\]PI-2620 at a radioactive dose of 185 megabecquerel (MBq).

Imaging characteristics of [18F]PI-2620 for detection of Tau deposition in the brain of NDC subjects

All eligible non-demented control (NDC) subjects will receive two injections of the investigational imaging agent \[18F\]PI-2620: at a baseline PET imaging session and at a follow-up PET imaging session to evaluate the test-retest imaging characteristics. 5 NDC subjects will be required to complete the study arm.

Group Type: EXPERIMENTAL

[18F]-PI2620

Intervention Type: DRUG

\[18F\]PI-2620 is a radioactive diagnostic agent being developed for the indication of PET imaging of the brain to detect tau pathology in adult patients who are being evaluated for neurodegenerative decline. All patients will receive two administrations of \[18F\]PI-2620 at a radioactive dose of 185 megabecquerel (MBq).

Interventions

[18F]-PI2620

\[18F\]PI-2620 is a radioactive diagnostic agent being developed for the indication of PET imaging of the brain to detect tau pathology in adult patients who are being evaluated for neurodegenerative decline. All patients will receive two administrations of \[18F\]PI-2620 at a radioactive dose of 185 megabecquerel (MBq).

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Males and females aged 50-80 years
• Able to understand, sign and date written informed consent
• Signed and dated written informed consent obtained from the subject
• The subject has an appropriate caregiver capable of accompanying subject, if necessary
• Have an Montreal Cognitive Assessment (MoCa) score ≥ 27
• Female subjects must be documented by medical records or physician's note to be either surgically sterile (by means of hysterectomy, bilateral salpingectomy or bilateral oophorectomy) or post-menopausal for at least 1 year (no menses for 12 months without an alternative medical cause). If they are of child-bearing potential, must commit to use of a highly effective contraceptive measure for the duration of the study
• Male subjects and their partners of childbearing potential must commit to the use of a highly effective method of contraception for a minimum of 90 days following each PET scan
• Male subjects must commit to not donate sperm for a minimum of 90 days after each PET scan
• Willing and able to cooperate with study procedures including lying flat and still on the scanning bed for 60 minutes

• Healthy with no clinically relevant finding on physical examination at screening
• No cognitive impairment from neuropsychological battery as judged by the investigator
• A brain MRI without evidence of significant neurological pathology
• A beta-amyloid Neuraceq® PET demonstrating a negative beta-amyloid status
• No signs of movement disorder as judged by Progressive Supranuclear Palsy Rating Scale (PSPRS), Movement Disorder Society - Unified Parkinson's Disability Rating Scale (MDS-UPDRS) and Progressive Supranuclear Palsy Clinical Deficits Scale (PSP-CDS)

• Patients with a clinical diagnosis of probable PSP-RS based on the Movement Disorder Society criteria (Höglinger et al., 2017)
• Medications taken for symptomatic treatment of PSP must be maintained on a stable dosage regimen for at least 30 days before the [18F]PI-2620 PET imaging visits

Exclusion Criteria

• Hemoglobin value < 10 g/dL
• Laboratory tests with clinically significant abnormalities and/or clinically significant unstable medical illness equivalent to CTC v5.0 (common toxicity criteria) toxicities greater than grade 2
• Evidence of clinically significant disease that is expected to interfere with cognitive assessments or the ability to complete the study procedures
• Subjects with clinically significant renal and hepatic dysfunction as judged by the investigator
• Known hypersensitivity to the active substance or to any of the excipients of [18F]PI-2620
• Known hypersensitivity to the active substance or to any of the excipients of Neuraceq®, for NDC only
• Subject has received an investigational drug including treatments targeting Amyloid-beta or tau within 3 months of screening
• Pregnant (or having the intention of getting pregnant), lactating or breastfeeding
• Unsuitable veins for repeated venipuncture.
• Subject has a contraindication to blood sampling and/or arterial cannulation, including but not limited to peripheral vascular disease, Raynaud's phenomenon as determined by abnormal Allen's test or abnormal coagulation profile at screening
• Implants such as implanted cardiac pacemakers or defibrillators, insulin pumps, cochlear implants, metallic ocular foreign body, implanted neural stimulators, CNS aneurysm clips and other medical implants that have not been certified for MRI, or history of claustrophobia in MRI
• Unwilling and/or unable to cooperate with study procedures

• Minimum Eligible Age: 50 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Life Molecular Imaging GmbH

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Andrew Stephens, MD, PhD

Role: STUDY_DIRECTOR

Life Molecular Imaging

Matthias Brendel, MD

Role: PRINCIPAL_INVESTIGATOR

Department of Nuclear Medicine, University of Munich

Locations

Ludwig-Maximilians-Universität München

Munich, , Germany

Countries

Germany

Other Identifiers

LMT-02-01-21

Identifier Type: -

Identifier Source: org_study_id