A Study to Investigate Alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid (AMPA Gamma 8) Receptor Occupancy of JNJ-64140284 With Newly Developed Transmembrane AMPA Receptor Regulatory Protein (TARP)-Gamma 8 Positron Emission Tomography (PET) [18F]JNJ-64511070 in Healthy Men

April 25, 2025 updated by: Janssen Research & Development, LLC

An Open-Label Study to Investigate the AMPAɣ8 Receptor Occupancy of JNJ-64140284 With the Newly Developed TARP-γ8 PET Tracer [18F]JNJ-64511070 in Healthy Men

The purpose of this study is to measure the blocking of [18F]JNJ-64511070 binding in the brain at the time after administration of a drug when the maximum plasma concentration is reached; when the rate of absorption equals the rate of elimination (tmax) of JNJ-64140284 and determine the exposure/receptor interaction of JNJ-64140284 in healthy male participants following single oral dose administration of JNJ-64140284.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
22

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
      • Leuven, Belgium, 3000
        • UZ Leuven Gasthuisberg

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Body mass index (BMI) between 18 and 30 kilogram per meter square (kg/m^2) inclusive (Body Mass Index [BMI] = weight/height^2)
  • Non-smoker (not smoked for 3 months prior to screening) or/and has not used nicotine -containing products (for example, nicotine patch) for 3 months prior to screening
  • Is willing to allow the investigators to place an arterial catheter in the radial artery, is assessed via physical examination (Allen Test) to be a good candidate for arterial catheter placement
  • Has no history or laboratory evidence of a coagulopathy. (for participants undergoing positron emission tomography [PET] scan only)
  • During the study and for a minimum of 1 spermatogenesis cycle (defined as approximately 90 days) after receiving the last dose of study drug, in addition to the highly effective method of contraception, a man a) who is sexually active with a woman of childbearing potential and has not had vasectomy must agree to use a condom and their female partner should also use oral contraception or user independent method such as intrauterine device (IUD) or hormonal implant for at least the same duration; b) who is sexually active with a woman who is pregnant, must use a condom; c) must agree not to donate sperm

Exclusion Criteria:

  • Exposed to greater than (>)1 milliSievert (mSv) of ionizing radiation participating as a participant in research studies 12 months before the start of this study
  • Clinically significant abnormal values for hematology, clinical chemistry or urinalysis at screening. It is expected that laboratory values will generally be within the normal range for the laboratory, though minor deviations, which are not considered to be of clinical significance to the investigator are acceptable
  • Clinically significant abnormal physical and neurological examination, vital signs or 12-lead electrocardiogram (ECG) at screening or admission
  • History of or current significant medical illness including (but not limited to) cardiac arrhythmias or other cardiac disease, liver or renal disease or obstruction to urinary flow, infection, or any other condition that the Investigator considers significant should exclude the participant. History of epilepsy or fits or unexplained black-outs
  • Serology positive for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibodies or human immunodeficiency virus (HIV) antibodies unless the participant has been successfully treated for HCV or HIV. Successful treatment should be confirmed by a negative ribonucleic acid (RNA) test for the virus

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Cohort 1: JNJ-64140284
Participants in cohort 1 will receive single oral dose of JNJ-64140284 at a starting dose of 0.5 milligram (mg) under fasted conditions. The dose levels of JNJ-64140284 will be escalated sequentially based on the decisions of an independent Data Review Committee (iDRC), the clinical team and the investigator. First 3 participants will also receive an intravenous (IV) bolus injection of [18F]JNJ-64511070 at a dose of 185 megaBecquerel (MBq). Participants with no measurable brain receptor occupancy will receive second (escalated) dosing with JNJ-64140284 and subsequent positron emission tomography-computed tomography (PET-CT) scan.
Drug: JNJ-64140284
Single dose of JNJ-64140284 up to 3 mg oral solution will be administered under fasted conditions.
Drug: Fluorine-18 Labeled [18F]-JNJ-64511070
An intravenous (IV) bolus injection of 185 MegaBecquerel (MBq) [18F]JNJ-64511070 will be administered.
Experimental: Cohort 2: JNJ-64140284
Participants in cohort 2 will receive next dose level of JNJ-64140284 based upon the data-review from the previous cohort and on the decisions of an iDRC, the clinical team and the investigator. At least 3 participants will receive an IV bolus injection of [18F]JNJ-64511070 at a dose of 185 MBq. Participants with no measurable brain receptor occupancy will receive second (escalated) dosing with JNJ-64140284 and subsequent PET-CT scan.
Drug: JNJ-64140284
Single dose of JNJ-64140284 up to 3 mg oral solution will be administered under fasted conditions.
Drug: Fluorine-18 Labeled [18F]-JNJ-64511070
An intravenous (IV) bolus injection of 185 MegaBecquerel (MBq) [18F]JNJ-64511070 will be administered.
Experimental: Cohort 3: JNJ-64140284
Participants in cohort 3 will receive next dose level of JNJ-64140284 based upon the data-review from the previous cohort and on the decisions of an iDRC, the clinical team and the investigator. At least 3 participants will receive an IV bolus injection of [18F]JNJ-64511070 at a dose of 185 MBq. Participants with no measurable brain receptor occupancy will receive second (escalated) dosing with JNJ-64140284 and subsequent PET-CT scan.
Drug: JNJ-64140284
Single dose of JNJ-64140284 up to 3 mg oral solution will be administered under fasted conditions.
Drug: Fluorine-18 Labeled [18F]-JNJ-64511070
An intravenous (IV) bolus injection of 185 MegaBecquerel (MBq) [18F]JNJ-64511070 will be administered.
Experimental: Cohort 4: JNJ-64140284
Participants in cohort 4 will receive next dose level of JNJ-64140284 based upon the data-review from the previous cohort and on the decisions of an iDRC, the clinical team and the investigator. At least 3 participants will receive an IV bolus injection of [18F]JNJ-64511070 at a dose of 185 MBq. Participants with no measurable brain receptor occupancy will receive second (escalated) dosing with JNJ-64140284 and subsequent PET-CT scan.
Drug: JNJ-64140284
Single dose of JNJ-64140284 up to 3 mg oral solution will be administered under fasted conditions.
Drug: Fluorine-18 Labeled [18F]-JNJ-64511070
An intravenous (IV) bolus injection of 185 MegaBecquerel (MBq) [18F]JNJ-64511070 will be administered.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Total and Regional Brain Compartmental Kinetics for Volume of Distribution (V[t]) of 18FJNJ-64511070
Time Frame: Approximately up to 1 hour on Day 2
The distribution of [18F]JNJ-64511070 in brain will be measured by positron emission tomography (PET) scans obtained along with measurement of the tracer input function with arterial samples for intact tracer and metabolites to establish the total and regional compartmental kinetics and volume of distribution (V[t]) of [18F]JNJ-64511070.
Approximately up to 1 hour on Day 2
Percentage of Alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA gamma 8) Receptor Occupancy
Time Frame: Approximately up to 1 hour on Day 2
Percentage of AMPAgamma8 receptor occupancy will be assessed by measuring the blocking of fluorine-18 labeled[18F]JNJ-64511070 uptake in the human brain by JNJ-64140284 using [18F]JNJ-64511070 positron emission tomography-computed tomography (PET-CT) scan and a post JNJ-64140284 scan obtained around tmax (approximately up to 1 hour on Day 2).
Approximately up to 1 hour on Day 2

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Participants with Adverse Events as a Measure of Safety and Tolerability
Time Frame: Approximately 6 weeks
An adverse event is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product.
Approximately 6 weeks
Change from Baseline in Electroencephalogram (EEG) Power at Day 2
Time Frame: Baseline and Day 2
EEG power spectral activity in the alpha 1, alpha 2, beta 1, beta 2, delta, theta and gamma frequency bands will be estimated for the baseline EEG recording and will be compared to the EEG power spectral activity in the same frequency bands on Day 2.
Baseline and Day 2

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Janssen Research & Development, LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Janssen Research & Development, LLC Clinical Trial, Janssen Research & Development, LLC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 17, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 2, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 13, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 1, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 1, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 3, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 27, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 25, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CR108508
  • 64140284EDI1003 (Other Identifier: Janssen Research & Development, LLC)
  • 2018-002539-98 (EudraCT Number)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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