About this trial
Epilepsy is a neurological disorder affecting more than 50 million people globally, including more than 260,000 Canadians. Cannabidiol (CBD) reduces seizure frequency and improves quality of life for adults and children with Drug Resistant Epilepsy (DRE). Several uncontrolled, small, open label studies reported that CBD-enriched Cannabis Herbal Extract (CHE) resulted in a reduction of seizure frequency, but we lack critical information on efficacy, comparative effectiveness and dosing of CBD and ∆9-tetrahydrocannabinol (THC) in children and adults with DRE. CAN-DRE is an early phase, triple-blind, placebo-controlled, randomized clinical trial to answer the questions of if cannabinoids work to reduce seizures in children and adults (24 months to 55 years) with DRE and if CBD works better in an isolate or in a CBD-enriched Cannabis Herbal Extract. The primary outcome of CAN-DRE is reported monthly seizure count from baseline to maintenance phase.
Eligibility criteria
Qualifiers
Ages 24 months to 55 years old at the time of enrollment
Diagnosed with DRE: not achieved seizure freedom, with adequate trials of 2 antiseizure medications 29
Medical history of 4 + clinically recognizable seizures (any type with clusters counted as a single event) per month
Have a negative pregnancy test at screening for patients who have experienced menarche
Disqualifiers
Diagnosis of psychogenic non-epileptic seizure
Recent (<30 days) change in anticonvulsant therapies including anticonvulsant medications, or settings on vagal nerve stimulator
Ketogenic diet started within 6 months (participants stable on the ketogenic diet for more than 6 months are eligible to participate)
Vagal nerve stimulator implanted and activated within 12 months
Trial design
Treatments tested in this trial
- Placebo
- CBD Isolate
- CBD CHE
Treatment groups
Locations
Sponsors and collaborators
University of Manitoba
Lead sponsor
Canadian Institutes of Health Research (CIHR)
Collaborator
Research Manitoba
Collaborator