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HealthyPhase 1NCT03693391

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

A Phase 1 study testing JNJ-64140284 and Fluorine-18 Labeled [18F]-JNJ-64511070 in people with Healthy, run by Janssen Research & Development, LLC at 1 site in Belgium.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

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… Read more about this study

Who is it for?
Ages 18 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
JNJ-64140284 and Fluorine-18 Labeled [18F]-JNJ-64511070
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteBelgium
Study dates
17 Oct 2018to 13 Mar 2019
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • UZ Leuven Gasthuisberg

    Leuven, 3000

Other trials in Belgium

About this study

Official title: 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.

Conditions
Healthy
Being tested
JNJ-64140284, Fluorine-18 Labeled [18F]-JNJ-64511070

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • JNJ-64140284Drug

    Single dose of JNJ-64140284 up to 3 mg oral solution will be administered under fasted conditions.

  • Fluorine-18 Labeled [18F]-JNJ-64511070Drug

    An intravenous (IV) bolus injection of 185 MegaBecquerel (MBq) [18F]JNJ-64511070 will be administered.

Study groups in NCT03693391
Study groupRoleWhat they receive
Cohort 1: JNJ-64140284ExperimentalParticipants 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.
Receives: Drug: JNJ-64140284; Drug: Fluorine-18 Labeled [18F]-JNJ-64511070
Cohort 2: JNJ-64140284ExperimentalParticipants 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.
Receives: Drug: JNJ-64140284; Drug: Fluorine-18 Labeled [18F]-JNJ-64511070
Cohort 3: JNJ-64140284ExperimentalParticipants 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.
Receives: Drug: JNJ-64140284; Drug: Fluorine-18 Labeled [18F]-JNJ-64511070
Cohort 4: JNJ-64140284ExperimentalParticipants 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.
Receives: Drug: JNJ-64140284; Drug: Fluorine-18 Labeled [18F]-JNJ-64511070

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Total and Regional Brain Compartmental Kinetics for Volume of Distribution (V[t]) of 18FJNJ-64511070

    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.

    Measured: Approximately up to 1 hour on Day 2

  2. Percentage of Alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA gamma 8) Receptor Occupancy

    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).

    Measured: Approximately up to 1 hour on Day 2

Secondary outcomes (2)
  1. Number of Participants with Adverse Events as a Measure of Safety and Tolerability

    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.

    Measured: Approximately 6 weeks

  2. Change from Baseline in Electroencephalogram (EEG) Power at 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.

    Measured: Baseline and Day 2

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Oct 2018
  2. Study start17 Oct 2018
  3. Primary completion2 Mar 2019
  4. Study completion13 Mar 2019

Why it stopped: stopped because of a business decision

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03693391
Sponsor's protocol ID
CR108508
Other IDs
64140284EDI1003, 2018-002539-98, 2018
Status last verified
Apr 2025
First submitted
1 Oct 2018
Last updated
27 Apr 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing JNJ-64140284 and Fluorine-18 Labeled [18F]-JNJ-64511070 in people with Healthy, run by Janssen Research & Development, LLC at 1 site in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 27 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: stopped because of a business decision). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

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 study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Apr 2025.

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