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A Study to Investigate P2X7 Receptor Occupancy by JNJ-54175446 With the Newly Developed P2X7 Receptor Positron Emission Tomography (PET) Tracer 18F-JNJ-64413739

NCT03088644 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2025-04-27

No results posted yet for this study

Summary

The primary purpose of this study is to measure the whole body distribution and radiation dosimetry of 18F-JNJ-64413739 (Part A), to measure the uptake, distribution, and clearance (CL) of 18F-JNJ-64413739 in the brain of healthy male subjects by Positron Emission Tomography (PET) and to model tissue specific kinetics of 18F-JNJ-64413739 with the appropriate input function (IF) (Part B), to measure subject test retest variability in the distribution of 18F-JNJ-64413739 in the brain of healthy male subjects by comparing PET scans obtained at least 1 week apart (Part C) and following single oral dose administration of JNJ-54175446, to measure the blocking of 18F-JNJ-64413739 uptake in the brain at the time to reach maximum plasma concentration (tmax) of JNJ-54175446 and model the exposure/receptor interaction of JNJ-54175446 in healthy male subjects (Part D).

Conditions

  • Healthy

Interventions

DRUG

JNJ-54175446

JNJ-54175446 up to 600 mg suspension for oral dose administration.

DRUG

18F-JNJ-64413739

18F-JNJ-64413739 fluid for injection administered intravenously.

Sponsors & Collaborators

  • Janssen-Cilag International NV

    lead INDUSTRY

Principal Investigators

  • Janssen-Cilag International NV Clinical Trial · Janssen-Cilag International NV

Study Design

Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2017-03-24
Primary Completion
2017-11-14
Completion
2017-11-14

Countries

  • Belgium

Study Locations

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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 NCT03088644 on ClinicalTrials.gov