Recruiting
Phase 2
Phase 3

JZP926

Sponsor:

Jazz Pharmaceuticals

Code:

NCT07723963

Conditions

Juvenile Myoclonic Epilepsy

Eligibility Criteria

Sex: All

Age: 10+

Healthy Volunteers: Not accepted

Interventions

JZP926 capsule

Placebo

Study Details

Brief summary:

This study is being conducted to evaluate the safety and efficacy of JZP926 capsule in participants with Juvenile Myoclonic Epilepsy (JME).

Conditions

Juvenile Myoclonic Epilepsy

Study ID

NCT07723963

Start date

Sep 18, 2026

Status verified date

Oct, 2026

Completion date

Aug 1, 2028

Anticipated

Primary completion date

Aug 1, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 10+

Healthy Volunteers: Not accepted

Inclusion Criteria

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

1. Is ≥ 10 years of age at the time of screening.
2. Has a diagnosis of JME per ILAE criteria as specified in the protocol.
3. Has at least 4 myoclonic seizure days per 28 days historical seizure frequency.

Exclusion Criteria

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

1. Presence of seizure types other than GTC, myoclonic, and absence seizures.
2. If historical MRI has been performed, participant's MRI reveals a cause of epilepsy other than JME.
3. Has a concurrent, confirmed diagnosis of non-epileptic seizures or events that can confound the assessment of the efficacy measures, in the opinion of the investigator.
4. The etiology of the participant's seizures is a progressive neurologic disease.
5. Has clinically unstable or progressive epilepsy.
6. Has clinically significant unstable medical condition(s), other than epilepsy, including unstable psychiatric disorders.
7. Has a history of status epilepticus in the 3 months prior to screening.
8. History of suicidal behavior, current suicidal risk as determined from history, or presence of active suicidal ideation as indicated by a positive response to Item 4 or Item 5 on the C-SSRS or is considered at risk of suicide or self-harm based on the clinical judgement of the investigator following interview with the participant and/or caregiver.
9. Has known or suspected hypersensitivity to cannabinoids or any of the excipients of the study intervention.
10. Is currently treated with Epidiolex or recently received treatment with Epidiolex within 28 days prior to screening.
11. Has a body weight < 20 kg or > 150 kg.
12. Is currently using or has used recreational or medicinal cannabis, cannabinoid/CBD based medications, products, or supplements (botanical or synthetic) within 28 days prior to screening.
13. Is unwilling or unable to abstain from recreational or medicinal cannabis, cannabinoid/CBD based medications, products, or supplements (botanical or synthetic) for the duration of the study.

Study Design

Enrollment

260 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: JZP926 Capsule

Participants with JME will be randomized to JZP926 capsule based on weight-tiered dosing for a 16-week treatment period.

placebo comparator: Placebo

Participants with JME will be randomized to matching placebo based on weight-tiered dosing for a 16-week treatment period.

experimental: Open-Label Extension: JZP926 Capsule

Participants completing Part A or Part B will have the option to continue into an open-label extension for up to 52 weeks, inclusive of a 4 week blinded transition.

Interventions

JZP926 capsule

Oral administration BID according to body weight

Placebo

Oral administration BID according to body weight

Primary outcome measure

  • Change from baseline in myoclonic seizure days per 28 days (Part A and Part B) [ Time Frame: Baseline up to end of 16 weeks treatment period ]

Central Contacts and Locations

Central contacts

Clinical Trial Disclosure & Transparency

215-832-3750ClinicalTrialDisclosure@JazzPharma.com

Locations

Savannah Neurology Specialists

Recruiting

Savannah, Georgia, United States, 31406

Hawaii Pacific Neuroscience, LLC

Recruiting

Honolulu, Hawaii, United States, 96817

Winchester Neurological Consultants

Recruiting

Winchester, Virginia, United States, 22601

More Information

Sponsor

Jazz Pharmaceuticals

Last update posted

Oct 6, 2026

Last verified

Oct, 2026

Keywords

  • Juvenile myoclonic epilepsy
  • JME
  • JZP926 capsule

Trial information was received from ClinicalTrials.gov and was last updated on 2026-10-07. This information was provided to ClinicalTrials.gov by Jazz Pharmaceuticals on 2026-10-06. Recruitment status is synced daily from ClinicalTrials.gov and may not reflect the sponsor's current status. Confirm during your call.