How [14C]-JNT-517 is Absorbed, Broken Down, and Removed From the Body After a Single Oral Dose in Healthy Male Participants

April 30, 2026 updated by: Otsuka Pharmaceutical Development & Commercialization, Inc.

A Phase 1, Open-label Study of the Absorption, Metabolism, and Excretion of [14C]JNT-517 Following a Single Oral Dose in Healthy Male Participants

The purpose of this study is to determine the absorption, metabolism and excretion of [14C]-JNT-517 and to characterize and determine the metabolites present in plasma, urine, and feces in healthy male participants following a single oral administration.

Study Overview

Status

Status

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

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.
8

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

  • United States
    • Wisconsin
      • Madison, Wisconsin, United States, 53704
        • Fortrea Clinical Research Unit Inc.

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

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria

  1. Body mass index (BMI) between 18.0 to 32.0 kilograms per square meter (kg/m^2), inclusive.
  2. In good health at screening as determined by: a) Medical history, b) Physical examination, c) ECG, d) Clinical laboratory evaluations (congenital nonhemolytic hyperbilirubinemia [e.g. suspicion of Gilbert's syndrome based on total and direct bilirubin] is not acceptable).
  3. History of a minimum of 1 bowel movement per day.
  4. Able to comprehend and are willing to sign the Informed consent form (ICF) and abide by the study restrictions.

Exclusion Criteria

  1. Use or intend to use any medications/products known to alter drug absorption, metabolism and excretion processes, including St. John's wort, within 30 days prior to dosing, considered to potentially impact participant safety or the objectives of the study, as determined by the investigator or designee.
  2. Alcohol consumption of >14 units per week.
  3. A Positive urine drug screen at screening or positive alcohol test result or positive urine drug screen at check-in.
  4. Participants having taken an investigational drug within 30 days prior to screening.
  5. Participants who have previously been dosed in >2 radiolabeled drug studies in the last 12 months.
  6. Participants with exposure to significant diagnostic or therapeutic radiation (e.g. serial X-ray, computed tomography scan, barium meal).
  7. Previous exposure to JNT-517.

Note: Other protocol-specified inclusion/exclusion criteria may apply.

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: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group 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: [14C]-JNT-517
Participants receive a single dose of [14C]-JNT-517, orally, on Day 1
Drug: [14C]-JNT-517
Suspension

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
Time Frame
Total Radioactivity Recovery (fet1-t2) in Urine and Feces
Time Frame: Up to Day 9
Up to Day 9
Relative Amounts Of Radioactivity Excreted in Urine and Feces
Time Frame: Up to Day 9
Up to Day 9
Area Under the Concentration-time Curve From Time Zero to Infinity (AUC0-∞) of [14C]-JNT-517 And Its Metabolites in Plasma
Time Frame: Up to Day 9
Up to Day 9
Area Under The Concentration-Time Curve From Time Zero to The Time Of The Last Quantifiable Concentration (AUC0-tlast) of [14C]-JNT-517 And Its Metabolites in Plasma
Time Frame: Up to Day 9
Up to Day 9
Maximum Plasma Concentration (Cmax) of [14C]-JNT-517 And Its Metabolites in Plasma
Time Frame: Up to Day 9
Up to Day 9
Time to Reach Maximum (Peak) Observed Plasma Concentration (Tmax) of [14C]-JNT-517 And Its Metabolites in Plasma
Time Frame: Up to Day 9
Up to Day 9
Apparent Terminal Elimination Half-Life (t½) of [14C]-JNT-517 And Its Metabolites in Plasma
Time Frame: Up to Day 9
Up to Day 9
AUC₀-∞ of Total Radioactivity in Plasma And Whole Blood
Time Frame: Up to Day 9
Up to Day 9
AUC₀-tlast of Total Radioactivity in Plasma And Whole Blood
Time Frame: Up to Day 9
Up to Day 9
Cmax of Total Radioactivity in Plasma and Whole Blood
Time Frame: Up to Day 9
Up to Day 9
Tmax of Total Radioactivity in Plasma and Whole Blood
Time Frame: Up to Day 9
Up to Day 9
t½ of Total Radioactivity in Plasma and Whole Blood
Time Frame: Up to Day 9
Up to Day 9

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
Time Frame
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
Time Frame: Up to Day 9
Up to Day 9
Number of Participants With Clinically Significant Changes in Clinical Laboratory Test Parameters
Time Frame: Up to Day 9
Up to Day 9
Number of Participants With Clinically Significant Changes in 12-lead Electrocardiogram (ECG) Parameters
Time Frame: Up to Day 9
Up to Day 9

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.
Otsuka Pharmaceutical Development & Commercialization, Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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.
January 22, 2024

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.
January 22, 2025

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.
February 27, 2025

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).
April 30, 2026

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.
April 30, 2026

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.
May 7, 2026

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.
May 7, 2026

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 30, 2026

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, 2026

More Information

Terms related to this study

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.
  • 359-201-00003

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Anonymized individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal. Small studies with less than 25 participants are excluded from data sharing.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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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