Skip to content

Efficacy of Epidiolex in Patients With Electrical Status Epilepticus of Sleep (ESES).

Efficacy of Epidiolex in Patients With Electrical Status Epilepticus of Sleep (ESES).

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04721691
Enrollment
16
Registered
2021-01-25
Start date
2021-03-10
Completion date
2024-01-17
Last updated
2025-06-04

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

Conditions

Electrical Status Epilepticus of Slow-Wave Sleep

Keywords

Neurology, Pediatric, ESES

Brief summary

This study aims to assess the efficacy of Epidiolex in patients with ESES. ESES is characterized by sleep potentiated spikes with a spike index greater than 85% (conventional definition) and 50% (new definition)1. Several drugs including: steroids, intravenous Gama globulin, Clobazam, other benzodiazepines, Valproic acid, and other anti-epileptic drugs have been tried with mixed benefits2,3. Cannabidiol (CBD) would provide a novel mechanism of action to assess for its efficacy in this population. This will be a double-blind placebo-controlled crossover clinical trial.

Detailed description

This study attempts to view the effect of Epidiolex on subjects with Electrical Status Epilepticus of Sleep (ESES). ESES can cause various types of seizures which can fluctuate during sleep. Similar studies have been conducted with Epidiolex with other seizure disorders such as Lennox-Gastaut syndrome (LGS) and Dravet Syndrome. Since there is no data available on the effect of Cannabidiol (CBD) on patients with ESES, this study hopes to fill that void. As such, patients that have been diagnosed with ESES will be eligible to participate in this study to ascertain whether or not Epidiolex can reduce the frequency or intensity of the seizures brought on by ESES during sleep.

Interventions

Epidiolex is a schedule 5 controlled substance that is a colorless to yellow oral liquid solution that is prepackaged into 100mL vials with 5mL syringes for use. It is typically used for the treatment of seizures associated with Lennox-Gastaut syndrome (LGS) or Dravet Syndrome in patients 2 years of age and older.

OTHERPlacebo

Placebo is composed of dehydrated alcohol, sesame seed oil, strawberry flavor, and sucralose.

Sponsors

Jazz Pharmaceuticals
CollaboratorINDUSTRY
Northwell Health
Lead SponsorOTHER

Study design

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

Masking description

All study personnel aside from the institution's pharmacist will remain blinded for the duration of this study.

Intervention model description

This study aims to assess the efficacy of Epidiolex in patients with ESES. ESES is characterized by sleep potentiated spikes with a spike index greater than 85% (conventional definition) and 50% (new definition). Several drugs including: steroids, intravenous Gama globulin, Clobazam, other benzodiazepines, Valproic acid, and other anti-epileptic drugs have been tried with mixed benefits. Cannabidiol (CBD) would provide a novel mechanism of action to assess for its efficacy in this population4. This will be a double-blind placebo-controlled crossover clinical trial.

Eligibility

Sex/Gender
ALL
Age
2 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

In order to be eligible to participate in this study, an individual must meet all of the following criteria: 1. Provision of signed and dated informed consent form 2. Stated willingness to comply with all study procedures and availability for the duration of the study 3. Male or female, aged 2-17 years old 4. In good general health as evidenced by medical history or diagnosed with ESES. Good health in relation to this study is understood as stable without current seizures requiring immediate hospitalization. 5. Ability to take oral medication and be willing to adhere to the Epidiolex/Placebo regimen 6. For females of reproductive potential: use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation and for an additional 1 month after the end of oral Epidiolex administration 7. For males of reproductive potential: use of condoms or other methods to ensure effective contraception with partner

Exclusion criteria

An individual who meets any of the following criteria will be excluded from participation in this study: 1. Previous use of cannabidiol within 4 months. 2. Pregnancy or lactation 3. Known allergic reactions to components of the Epidiolex: cannabidiol, sesame seed oil, and sucralose 4. Febrile illness within 1 month of screening 5. Treatment with another investigational drug or other intervention within 6 months 6. Current smoker or tobacco use within 6 months

Design outcomes

Primary

MeasureTime frameDescription
Frequency of Spike Wave IndexUp to 20 weeksAssess the reduction in spike wave index by evaluating the differences in activity from the four 24-hour ambulatory EEGs each participant obtains while enrolled in this study

Secondary

MeasureTime frameDescription
Likert Scale AssessmentUp to 20 weeksThe secondary objective is to assess seizure counts and subjective behavior change on a 5 point Likert scale (1= no improvement, 2= some improvement, 3=moderate improvement, 4=significant improvement, 5=extreme improvement).

Countries

United States

Outcome results

None listed

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