A Study to Evaluate the Efficacy and Safety of Cannabidiol Oral Solution (CBD-OS [GWP42003-P, JZP926]) for the Treatment of Focal-Onset Seizures

NCT ID: NCT07233239

Last Updated: 2025-12-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-11-26

Study Completion Date

2027-11-29

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Cannabidiol oral solution (CBD-OS) is approved in the US for the treatment of seizures associated with Lennox-Gastaut syndrome (LGS), Dravet syndrome (DS), or Tuberous sclerosis complex (TSC) in patients 1 year of age and older. This study will assess the efficacy and safety of CBD-OS in participants aged 12 to 75 years for the treatment of focal-onset seizures (FOS).

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study will assess the efficacy of CBD-OS as an adjunctive treatment in reducing the frequency of focal seizures compared to baseline as well as the effect of CBD-OS on health outcome endpoints in early line and refractory participants with FOS. This study will also examine pharmacokinetics (PK), safety, and potential predictors or mediators of treatment response, including functional magnetic resonance imaging (fMRI) and neuropsychological testing in a substudy.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Focal Seizures

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

Focal Seizures

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

CBD-OS

Participants who will receive open-label CBD-OS.

Group Type EXPERIMENTAL

CBD-OS

Intervention Type DRUG

Starting dose of CBD-OS will be administered as per the approved local product label

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

CBD-OS

Starting dose of CBD-OS will be administered as per the approved local product label

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

GWP42003-P JZP926

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

1. Participant has a documented diagnosis of focal epilepsy according to the ILAE Classification of Epilepsy, 2017, characterized by focal seizure types with typical interictal/ictal EEG findings (eg, focal sharp waves or slowing).
2. Participant is currently treated with at least 1, but no more than 4, antiseizure medications on a stable regimen.
3. Participant is aged 12 to 75 years old, inclusive, at Screening.

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

1. 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.
2. Has clinically significant unstable medical condition(s), other than epilepsy.
3. 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.
4. Has known or suspected hypersensitivity to cannabinoids or any of the excipients of the study intervention, such as sesame oil.
5. Is currently treated with Epidiolex or received treatment with Epidiolex within 28 days prior to Screening (Visit 1).
6. 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 (Visit 1) and/or is unwilling to abstain for the duration of the study.
7. Presence of only nonmotor onset seizures or primary generalized epilepsies.
Minimum Eligible Age

12 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Jazz Pharmaceuticals Research UK Ltd.

UNKNOWN

Sponsor Role collaborator

Jazz Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Banner University Medical Center-Phoenix

Phoenix, Arizona, United States

Site Status NOT_YET_RECRUITING

UC San Diego

La Jolla, California, United States

Site Status RECRUITING

Yale University

New Haven, Connecticut, United States

Site Status NOT_YET_RECRUITING

University of South Florida

Tampa, Florida, United States

Site Status NOT_YET_RECRUITING

Emory University

Atlanta, Georgia, United States

Site Status NOT_YET_RECRUITING

Savannah Neurology Specialists

Savannah, Georgia, United States

Site Status RECRUITING

Northwestern University

Chicago, Illinois, United States

Site Status NOT_YET_RECRUITING

Mid-Atlantic Epilepsy and Sleep Center

Bethesda, Maryland, United States

Site Status RECRUITING

Wayne State University

Detroit, Michigan, United States

Site Status NOT_YET_RECRUITING

Corewell Health

Grand Rapids, Michigan, United States

Site Status NOT_YET_RECRUITING

Hackensack Meridian Neuroscience Institute at JFK University Medical Center

Edison, New Jersey, United States

Site Status NOT_YET_RECRUITING

Saint Peter's University Hospital

New Brunswick, New Jersey, United States

Site Status RECRUITING

Boston Children's Health Physicians

Hawthorne, New York, United States

Site Status NOT_YET_RECRUITING

Onsite Clinical Solutions

Charlotte, North Carolina, United States

Site Status RECRUITING

Velocity Clinical Research at Raleigh Neurology

Raleigh, North Carolina, United States

Site Status RECRUITING

Cincinnati Children's Hospital

Cincinnati, Ohio, United States

Site Status NOT_YET_RECRUITING

University of Cincinnati, Gardner Neuroscience Institute

Cincinnati, Ohio, United States

Site Status NOT_YET_RECRUITING

Oregon Health & Science University

Portland, Oregon, United States

Site Status NOT_YET_RECRUITING

Le Bonheur Children's Hospital

Memphis, Tennessee, United States

Site Status NOT_YET_RECRUITING

Child Neurology & Consultants of Austin

Austin, Texas, United States

Site Status RECRUITING

ANESC Research

El Paso, Texas, United States

Site Status RECRUITING

Seattle Children's Hospital

Seattle, Washington, United States

Site Status NOT_YET_RECRUITING

William S Middleton Memorial Veterans Hospital

Madison, Wisconsin, United States

Site Status NOT_YET_RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Clinical Trial Disclosure & Transparency

Role: CONTACT

Phone: 215-832-3750

Email: [email protected]

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

JZP926-105

Identifier Type: -

Identifier Source: org_study_id