A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of JZP269 in Healthy Male and Female Participants

September 4, 2026 updated by: Jazz Pharmaceuticals

A Phase 1, Randomized, Double-Blind, Sponsor-Unblinded, Placebo-Controlled, Single-Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of JZP269 in Healthy Male and Female Participants

This study will characterize the safety, tolerability, pharmacokinetics (PK), and pharmacodynamic (PD) of JZP269 in healthy participants.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

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.

Detailed Description

This first-in-human study is designed to characterize the safety, tolerability, pharmacokinetics (PK), and pharmacodynamic (PD) of JZP269, an orexin-2 receptor agonist, in healthy participants. The study will also assess the effect of food on JZP269 PK, characterize cerebrospinal fluid (CSF) exposure, and evaluate the wake-promoting PD effects using the Maintenance of Wakefulness Test (MWT) and Karolinska Sleepiness Scale (KSS) in sleep-deprived participants.

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 (Estimated)

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.
188

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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

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

Participants are eligible to be included in the study only if all of the following criteria apply:

  1. Is 18 to 55 years of age, inclusive, at the time of signing the informed consent.
  2. Is overtly healthy as determined by medical evaluation, including medical history, physical examination, laboratory tests, and cardiac/blood pressure monitoring.
  3. Has a body weight of at least 45 kg and BMI within the range of 18.5 to 30 kg/m^2 (inclusive).

Participants are excluded from the study if any of the following criteria apply:

  1. Has a history of or presence of clinically significant medical illness as specified in the protocol.
  2. Has a family history (first degree relative) of torsades de pointes, premature sudden death, long QT syndrome, or clinically significant cardiac conduction disorders.
  3. Has a known or suspected history of schizophrenia or other psychotic illness or a history of severe personality disorder or other significant psychiatric disorder.
  4. Has a history (within 5 past years) or presence of diagnosis of alcohol abuse or alcohol use disorder, substance abuse or substance use disorder, or known drug dependence or is seeking treatment for an alcohol or substance abuse related disorder.
  5. Has a current diagnosis of or is receiving treatment for depression or has a history (within past 5 years) of clinically significant major depressive episode.
  6. Has a history of suicide attempt, a current suicidal risk as determined from history, or the presence of active suicidal ideation as indicated by a positive response to Item 4 or Item 5 on the C-SSRS (within the past 24 months).
  7. In participants where cerebrospinal fluid will be collected, any contraindications to lumbar puncture including increased intracranial pressure, conditions that may lead to brain herniation, a history of degenerative spine disease or lumbar spinal stenosis, a history of lumbar surgery, or prior history of adverse experience with lumbar puncture (eg, headache).
  8. Has a clinically significant ECG abnormality per investigator assessment or an average PR > 200 msec, average QRS > 110 msec, average QTcF > 440 msec for men and women, or flattened or difficult to distinguish T-waves.
  9. Has a resting supine systolic blood pressure > 140 mmHg or < 90 mmHg, resting supine diastolic blood pressure > 90 mmHg or < 50 mmHg, or resting supine heart rate > 100 bpm or < 40 bpm at screening or check-in.

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

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: JZP269
Participants will receive JZP269.
Drug: JZP269
Administered as described.
Placebo Comparator: Placebo
Participants will receive a matching placebo.
Drug: Placebo
Administered as described.

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
Number of Participants Reporting Treatment-emergent Adverse Events
Time Frame: Day 1 of dosing and monitoring period up to 7 days after last dose (Safety Follow Up Visit)
Day 1 of dosing and monitoring period up to 7 days after last dose (Safety Follow Up Visit)
Pharmacokinetic Parameter Maximum Concentration (Cmax) of JZP269
Time Frame: Predose up to 48 hours postdose
Predose up to 48 hours postdose
Pharmacokinetic Parameter Time to Maximum Concentration (Tmax) of JZP269
Time Frame: Predose up to 48 hours postdose
Predose up to 48 hours postdose
Pharmacokinetic Parameter Apparent Terminal Elimination Half-life (t1/2) of JZP269
Time Frame: Predose up to 48 hours postdose
Predose up to 48 hours postdose
Pharmacokinetic Parameter Area Under the Concentration-Time Curve (AUC) of JZP269
Time Frame: Predose up to 48 hours postdose
Area under the concentration-time curve from time 0 to 24 hours (AUC0-24), area under the concentration time curve from time 0 to the last measurable concentration (AUC0-last), and area under the concentration-time curve from time 0 to infinity will be assessed (AUC∞).
Predose up to 48 hours postdose
Pharmacokinetic Parameter Oral Clearance (CL/F) of JZP269
Time Frame: Predose up to 48 hours postdose
Predose up to 48 hours postdose
Pharmacokinetic Parameter Apparent Volume of Distribution During the Terminal Phase (Vz/F) of JZP269
Time Frame: Predose up to 48 hours postdose
Predose up to 48 hours postdose

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
Dose Proportionality of JZP269 Area Under the Concentration-Time Curve (AUC)
Time Frame: Predose up to 48 hours postdose
Dose proportionality of JZP269 AUC0-last, AUC∞, and AUC0-24 will be assessed.
Predose up to 48 hours postdose
Dose Proportionality of JZP269 Maximum Concentration (Cmax)
Time Frame: Predose up to 48 hours postdose
Predose up to 48 hours postdose
The Effect of Food on the PK of JZP269 Cmax
Time Frame: Predose up to 48 hours postdose
The effect of food on the PK of JZP269 relative to that observed in the fasted state will be assessed.
Predose up to 48 hours postdose
The Effect of Food on the PK of JZP269 Tmax
Time Frame: Predose up to 48 hours postdose
The effect of food on the PK of JZP269 relative to that observed in the fasted state will be assessed.
Predose up to 48 hours postdose
The Effect of Food on the PK of JZP269 t1/2
Time Frame: Predose up to 48 hours postdose
The effect of food on the PK of JZP269 relative to that observed in the fasted state will be assessed.
Predose up to 48 hours postdose
The Effect of Food on the PK of JZP269 AUC
Time Frame: Predose up to 48 hours postdose
The effect of food on the PK of JZP269 relative to that observed in the fasted state will be assessed.
Predose up to 48 hours postdose
Mean Concentrations of JZP269 in Cerebrospinal Fluid
Time Frame: Predose up to 48 hours postdose
Predose up to 48 hours postdose
Mean Sleep Latency on the Maintenance of Wakefulness Test (MWT) in Sleep-deprived Participants
Time Frame: Day 1 of dosing and monitoring period
The MWT measures a participant's ability to remain awake under quiet conditions during the day. Sleep latency is the time it takes for a participant to fall asleep while trying to remain awake during the MWT, and sleep onset is determined objectively by electroencephalography. The MWT calculates mean sleep latency as the average time to sleep onset. Shorter mean sleep latency indicates a greater difficulty maintaining wakefulness.
Day 1 of dosing and monitoring period
Mean Karolinska Sleepiness Scale (KSS) Score in Sleep-deprived Participants
Time Frame: Day 1 of dosing and monitoring period
The KSS is a 9-point scale that measures subjective sleepiness during the preceding 10 minutes, ranging from 1 ("extremely alert") to 9 ("very sleepy, great effort to keep awake, fighting sleep"). Higher scores indicate greater sleepiness.
Day 1 of dosing and monitoring period

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.
Jazz Pharmaceuticals

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Jazz Pharmaceuticals Ireland Limited

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 (Estimated)

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.
September 22, 2026

Primary Completion (Estimated)

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.
February 27, 2027

Study Completion (Estimated)

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, 2027

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).
September 4, 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.
September 4, 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.
September 10, 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.
September 10, 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.
September 4, 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.
September 1, 2026

More Information

Terms related to this study

Keywords

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.
  • JZP269-101

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

In accordance with ICMJE requirements, Jazz Pharmaceuticals may provide qualified external researchers access to individual participant data (IPD) and clinical trial data that underlie the results of this trial upon request. Qualified researchers can submit a request on https://www.jazzpharma.com/science/clinical-trial-data-sharing/ as outlined. Jazz Pharmaceuticals reserves the right not to consider a request. For inquiries about Jazz's data sharing policy contact clinicaldatasharing@jazzpharma.com.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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