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PET Imaging Study of α7 and α4β2-nAChR in Schizophrenia

NCT05462340 · Status: TERMINATED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 117

Last updated 2025-04-03

No results posted yet for this study

Summary

The purpose of this research is to use specialized brain imaging techniques, Positron Emission Tomography (PET) scan and Magnetic Resonance Imaging (MRI), to learn more about the brain chemistry, e.g., how neurotransmitters and receptors in the brain function in people with schizophrenia compared to healthy controls.

Conditions

Interventions

DRUG

[18F]ASEM

\[18F\]ASEM demonstrated excellent imaging properties, as was recently confirmed by others. \[18F\]ASEM is the 1st validated α7 human PET radiotracer to examine α7-nAChR characteristics in the living brain of SCZ patients. Previous α7 studies in the SCZ literature were done using brains harvested post-mortem, and under variable storage conditions. The proposed studies will also determine α4β2-nAChR \[18F\]AZAN binding characteristics in the same subjects who complete α7-nAChR PET studies with \[18F\]ASEM, which will be highly significant for understanding these receptors in SCZ.

DRUG

[18F]AZAN

The most widely used PET radioligand for human imaging of α4β2-nAChR is 2-\[18F\]FA. Because 2-\[18F\]FA exhibits very slow brain kinetics, the investigators developed \[18F\]AZAN, a highly α4β2 specific tracer with optimal brain kinetics. Therefore, the proposed studies will utilize \[18F\]AZAN to determine α4β2-nAChR \[18F\]AZAN binding characteristics in the same subjects who complete α7-nAChR PET studies with \[18F\]ASEM, which will be highly significant for understanding these receptors in SCZ.

Sponsors & Collaborators

  • Washington University School of Medicine

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-08-18
Primary Completion
2025-01-07
Completion
2025-01-07
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05462340 on ClinicalTrials.gov