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A Study of JZP150 in Adults With Posttraumatic Stress Disorder

A Multicenter Phase 2, 12-week Double-blind, Placebo-controlled, Randomized, Parallel-group Study of JZP150 for the Treatment of Posttraumatic Stress Disorder

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05178316
Enrollment
282
Registered
2022-01-05
Start date
2021-12-29
Completion date
2023-12-05
Last updated
2024-12-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post Traumatic Stress Disorder

Keywords

Post Traumatic Stress Disorder, JZP150

Brief summary

This is a 12-week, double-blind, placebo-controlled, randomized, parallel-group, multicenter study of the safety and efficacy of JZP150 in the treatment of adult participants with post-traumatic stress disorder (PTSD).

Detailed description

JZP150 is an oral, highly selective inhibitor of fatty acid amide hydrolase (FAAH). In this phase 2 study, participants with PTSD will receive either placebo or 1 of 2 doses of JZP150. The primary objective of the study will assess the change in PTSD symptoms from baseline to Week 12 using the Clinician Administered PTSD Scale (CAPS-5).

Interventions

DRUGJZP150

Oral administration of JZP150 once daily in the morning

DRUGPlacebo

Oral administration of placebo once daily in the morning

Sponsors

Jazz Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Participants aged 18 to 70 years * Participants must be outpatients with a primary diagnosis of Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) defined PTSD confirmed by the clinical interview * PTSD is primary diagnosis

Exclusion criteria

* Acute or unstable medical condition, behavioral or psychiatric disorder (other than PTSD) * Suicidal behavior in the past 2 years or active suicidal ideation in the past 6 months * Ongoing traumatic event or exposure to a traumatic event \<3 months prior to Screening * Index event \> 12 years * Index event is combat trauma

Design outcomes

Primary

MeasureTime frameDescription
Mean Change From Baseline to Week 12 in Clinician Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS-5) Total Symptom Severity ScoreBaseline to Week 12Clinician Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS-5) is a clinician administered, clinical interview where participants report on their symptoms of PTSD on a scale. The CAPS-5 total score ranges between 0 and 80. Higher scores indicate more severe PTSD symptoms. Change in CAPS-5 total score is being reported, where negative mean scores indicate an improvement in clinical outcome.

Secondary

MeasureTime frameDescription
Mean Change From Baseline to Week 12 in Clinical Global Impression of Severity (CGI-S)Baseline to Week 12Clinical Global Impression of Severity (CGI-S) is a clinician assessment used to assess the severity of the participants' PTSD on a scale range of 1 to 7, where 1 indicates normal, not at all ill and a 7 indicates among the most extremely ill participants. Change in CGI-S is being reported with negative mean values indicating an improvement in clinical outcome.
Mean Change From Baseline to Week 12 in Patient Global Impression of Severity (PGI-S)Baseline to Week 12Patient Global Impression of Severity (PGI-S) is a patient assessment designed to evaluate severity of PTSD symptoms on a scale from 1 to 5, where 1 indicates none and 5 indicates very severe. Change in PGI-S is being reported with negative mean values indicating an improvement in clinical outcome.

Countries

United States

Participant flow

Recruitment details

A total of 282 participants who met all inclusion criteria and no exclusion criteria were randomized to treatment. Of those 282 participants, 277 received at least 1 dose of study intervention. Five participants did not receive any treatment.

Participants by arm

ArmCount
JZP150 0.3 mg
Participants who were randomized to JZP150 0.3 mg orally once daily for up to 12 weeks.
54
JZP150 4.0 mg
Participants who were randomized to JZP150 4.0 mg orally once daily for up to 12 weeks.
113
Placebo
Participants who were randomized to placebo orally once daily for up to 12 weeks.
110
Total277

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event549
Overall StudyEnrolled in Error121
Overall StudyLost to Follow-up31511
Overall StudyNoncompliance131
Overall StudyOther010
Overall StudyPhysician Decision032
Overall StudyProtocol deviation101
Overall StudySponsor decision101
Overall StudyWithdrawal by Subject5115

Baseline characteristics

CharacteristicJZP150 0.3 mgJZP150 4.0 mgPlaceboTotal
Age, Continuous38.4 years
STANDARD_DEVIATION 13.54
38.6 years
STANDARD_DEVIATION 12.45
41.2 years
STANDARD_DEVIATION 12.52
39.6 years
STANDARD_DEVIATION 12.72
Age, Customized
≤45 years
37 Participants79 Participants72 Participants188 Participants
Age, Customized
>45 years
17 Participants34 Participants38 Participants89 Participants
Age, Customized
≤65 years
53 Participants111 Participants106 Participants270 Participants
Age, Customized
>65 years
1 Participants2 Participants4 Participants7 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Asian
3 Participants3 Participants6 Participants12 Participants
Race/Ethnicity, Customized
Black or African American
12 Participants16 Participants15 Participants43 Participants
Race/Ethnicity, Customized
Declined to state
1 Participants2 Participants0 Participants3 Participants
Race/Ethnicity, Customized
Multiple
0 Participants0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants2 Participants2 Participants
Race/Ethnicity, Customized
White
38 Participants92 Participants85 Participants215 Participants
Sex: Female, Male
Female
44 Participants85 Participants81 Participants210 Participants
Sex: Female, Male
Male
10 Participants28 Participants29 Participants67 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 540 / 1130 / 110
other
Total, other adverse events
20 / 5430 / 11324 / 110
serious
Total, serious adverse events
1 / 542 / 1131 / 110

Outcome results

Primary

Mean Change From Baseline to Week 12 in Clinician Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS-5) Total Symptom Severity Score

Clinician Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS-5) is a clinician administered, clinical interview where participants report on their symptoms of PTSD on a scale. The CAPS-5 total score ranges between 0 and 80. Higher scores indicate more severe PTSD symptoms. Change in CAPS-5 total score is being reported, where negative mean scores indicate an improvement in clinical outcome.

Time frame: Baseline to Week 12

Population: CAPS-5 total symptom severity score was assessed in participants with available data in the Full Analysis Set 1.

ArmMeasureValue (MEAN)Dispersion
JZP150 0.3 mgMean Change From Baseline to Week 12 in Clinician Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS-5) Total Symptom Severity Score-17.0 score on a scaleStandard Deviation 13.75
JZP150 4.0 mgMean Change From Baseline to Week 12 in Clinician Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS-5) Total Symptom Severity Score-17.8 score on a scaleStandard Deviation 12.59
PlaceboMean Change From Baseline to Week 12 in Clinician Administered Posttraumatic Stress Disorder (PTSD) Scale (CAPS-5) Total Symptom Severity Score-17.6 score on a scaleStandard Deviation 11.99
p-value: =0.886295% CI: [-3.98, 4.6]Mixed Models Analysis
p-value: =0.683295% CI: [-4.32, 2.84]Mixed Models Analysis
Secondary

Mean Change From Baseline to Week 12 in Clinical Global Impression of Severity (CGI-S)

Clinical Global Impression of Severity (CGI-S) is a clinician assessment used to assess the severity of the participants' PTSD on a scale range of 1 to 7, where 1 indicates normal, not at all ill and a 7 indicates among the most extremely ill participants. Change in CGI-S is being reported with negative mean values indicating an improvement in clinical outcome.

Time frame: Baseline to Week 12

Population: CGI-S was assessed in participants with available data in the Full Analysis Set 1 (defined as

ArmMeasureValue (MEAN)Dispersion
JZP150 0.3 mgMean Change From Baseline to Week 12 in Clinical Global Impression of Severity (CGI-S)-1.4 score on a scaleStandard Deviation 1.1
JZP150 4.0 mgMean Change From Baseline to Week 12 in Clinical Global Impression of Severity (CGI-S)-1.3 score on a scaleStandard Deviation 1.27
PlaceboMean Change From Baseline to Week 12 in Clinical Global Impression of Severity (CGI-S)-1.2 score on a scaleStandard Deviation 1.08
p-value: =0.452295% CI: [-0.55, 0.25]Mixed Models Analysis
p-value: =0.203295% CI: [-0.55, 0.12]Mixed Models Analysis
Secondary

Mean Change From Baseline to Week 12 in Patient Global Impression of Severity (PGI-S)

Patient Global Impression of Severity (PGI-S) is a patient assessment designed to evaluate severity of PTSD symptoms on a scale from 1 to 5, where 1 indicates none and 5 indicates very severe. Change in PGI-S is being reported with negative mean values indicating an improvement in clinical outcome.

Time frame: Baseline to Week 12

Population: PGI-S was assessed in participants with available data in the Full Analysis Set.

ArmMeasureValue (MEAN)Dispersion
JZP150 0.3 mgMean Change From Baseline to Week 12 in Patient Global Impression of Severity (PGI-S)-1.0 score on a scaleStandard Deviation 1.17
JZP150 4.0 mgMean Change From Baseline to Week 12 in Patient Global Impression of Severity (PGI-S)-1.1 score on a scaleStandard Deviation 1.11
PlaceboMean Change From Baseline to Week 12 in Patient Global Impression of Severity (PGI-S)-1.0 score on a scaleStandard Deviation 1.09
p-value: =0.71795% CI: [-0.38, 0.26]Mixed Models Analysis
p-value: =0.242395% CI: [-0.43, 0.11]Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026