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Evaluate the Concordance Between PET Imaging of [18F]-APN-1607 Injection and Postmortem Brain Tissue Tau Pathology in Individuals With HV and MCI or AD.

A Clinicopathological Study to Evaluate the Concordance Between [18F]-APN-1607 Injection PET Imaging and Post-mortem Brain Tau Protein Pathological Changes in Cognitively Normal (HV) Subjects and Patients With AD-derived Mild Cognitive Impairment (MCI) or Alzheimer's Disease (AD) Dementia.

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07752784
Enrollment
12
Registered
2026-08-07
Start date
2026-08-15
Completion date
2027-08-15
Last updated
2026-08-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer's Disease

Brief summary

1. To evaluate the diagnostic performance of \[18F\]-APN-1607 injection PET imaging in detecting uptake patterns consistent with AD neuropathological changes as defined by the National Institute on Aging-Alzheimer's Association (NIA-AA) criteria. 2. To assess the association between \[18F\]-APN-1607 injection and Alzheimer's disease (AD)-related tau neurofibrillary pathology (as determined by post-mortem brain tissue histopathology), and detect the uptake pattern corresponding to neurofibrillary tangle (NFT) scores. 3. To evaluate the safety of \[18F\]-APN-1607 injection.

Interventions

Participants will receive a single intravenous injection of 5-7 mCi of \[18F\]-APN-1607, and a whole-body PET/CT scan will begin immediately after administration

Sponsors

JYAMS PET Research & Development Limited
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

1. Able to understand and voluntarily sign a written informed consent form (ICF). 2. Age≥50 years, male or female. 3. Charlson Comorbidity Index (CCI)≥5. 4. Able to tolerate imaging procedures. 5. For MCI or AD subjects: clinically diagnosed as AD-derived cognitive impairment or Alzheimer's dementia. 6. For HV subjects: no known personal or family history of AD-derived dementia.

Exclusion criteria

1. Confirmed brain structural abnormalities that may affect PET reading, e.g., large stroke (infarct area\>4 cm) or intracranial space-occupying lesion. 2. Currently having clinically significant infectious diseases: HIV, hepatitis, etc. 3. Currently participating in any investigational clinical trial. 4. Previous participation in clinical studies of amyloid or tau-targeting agents. 5. Suspected hepatic encephalopathy. 6. Allergy to the investigational drug or any of its components. 7. Currently pregnant or breastfeeding. 8. Currently having a disease or condition that prolongs the QT interval.

Design outcomes

Primary

MeasureTime frameDescription
Evaluate the consistency between the visual interpretation results of [18F]-APN-1607 injection PET imaging and the authenticity standards.8 monthsSummary of visual reads by 5 blinded readers and concordance analysis between NIA-AA postmortem neuropathology and \[18F\]-APN-1607 PET visual reads.

Secondary

MeasureTime frameDescription
Correlation between the results of semi-quantitative PET imaging analysis (SUVR) and brain tissue pathological NFT scores.8 monthsCorrelation analysis between categorized NFT scores and regional PET SUVRs
Evaluation of the safety of [18F]-APN-1607 injection.8 monthsSafety for the administration of \[18F\]-APN-1607 and PET scanning is measured by number of participants with Adverse events / Serious adverse events

Countries

China

Contacts

CONTACTQian Tang
tangqian@pet-tracer.com.cn025-86166196
CONTACTHeng He
heheng@pet-tracer.com.cn025-86166196

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 18, 2026