Brief Summary
This trial consists of 2 parts: a double-blinded phase and an open-label extension phase. The blinded phase only will be described in this record. Participants will receive 1 of 2 doses of GWP42003-P or matching placebo. The primary clinical hypothesis is that there will be a difference between GWP42003-P and placebo in their effect on seizure frequency.
Brief Title
A Randomized Controlled Trial of Cannabidiol (GWP42003-P, CBD) for Seizures in Tuberous Sclerosis Complex (GWPCARE6)
Categories
Completion Date
Completion Date Type
Actual
Conditions
Tuberous Sclerosis Complex
Seizures
Eligibility Criteria
Key Inclusion Criteria:
* Participant has a well-documented clinical history of epilepsy.
* Participant has a clinical diagnosis of Tuberous Sclerosis Complex (TSC) according to the criteria agreed by the 2012 International TSC Consensus Conference.
* All medications or interventions for epilepsy (including ketogenic diet and any neurostimulation devices for epilepsy) must have been stable for 1 month prior to screening and the participant is willing to maintain a stable regimen throughout the trial.
Key Exclusion Criteria:
* Participant has a history of pseudo-seizures.
* Participant has clinically significant unstable medical conditions other than epilepsy.
* Participant has an illness in the 4 weeks prior to screening or randomization, other than epilepsy, which in the opinion of the investigator could affect seizure frequency.
* Participant has undergone general anesthetic in the 4 weeks prior to screening or randomization.
* Participant has undergone surgery for epilepsy in the 6 months prior to screening.
* Participant is being considered for epilepsy surgery or any procedure involving general anesthesia.
* Participant has been taking felbamate for less than 1 year prior to screening.
* Participant is taking an oral mTOR inhibitor.
* Participant has any known or suspected hypersensitivity to cannabinoids or any of the excipients of the Investigational Medicinal Product (IMP), such as sesame oil.
* Participant has any history of suicidal behavior or any suicidal ideation of type 4 or 5 on the C-SSRS in the last month or at screening.
* Participant is currently using or has in the past used recreational or medicinal cannabis, or cannabinoid-based medications, within the 3 months prior to screening and is unwilling to abstain for the duration for the study.
* Participant has tumor growth which, in the opinion of the Investigator, could affect the primary endpoint.
* Participant has significantly impaired hepatic function at the screening or randomization visit
* Participant has received an IMP within the 12 weeks prior to the screening visit.
* Participant has a well-documented clinical history of epilepsy.
* Participant has a clinical diagnosis of Tuberous Sclerosis Complex (TSC) according to the criteria agreed by the 2012 International TSC Consensus Conference.
* All medications or interventions for epilepsy (including ketogenic diet and any neurostimulation devices for epilepsy) must have been stable for 1 month prior to screening and the participant is willing to maintain a stable regimen throughout the trial.
Key Exclusion Criteria:
* Participant has a history of pseudo-seizures.
* Participant has clinically significant unstable medical conditions other than epilepsy.
* Participant has an illness in the 4 weeks prior to screening or randomization, other than epilepsy, which in the opinion of the investigator could affect seizure frequency.
* Participant has undergone general anesthetic in the 4 weeks prior to screening or randomization.
* Participant has undergone surgery for epilepsy in the 6 months prior to screening.
* Participant is being considered for epilepsy surgery or any procedure involving general anesthesia.
* Participant has been taking felbamate for less than 1 year prior to screening.
* Participant is taking an oral mTOR inhibitor.
* Participant has any known or suspected hypersensitivity to cannabinoids or any of the excipients of the Investigational Medicinal Product (IMP), such as sesame oil.
* Participant has any history of suicidal behavior or any suicidal ideation of type 4 or 5 on the C-SSRS in the last month or at screening.
* Participant is currently using or has in the past used recreational or medicinal cannabis, or cannabinoid-based medications, within the 3 months prior to screening and is unwilling to abstain for the duration for the study.
* Participant has tumor growth which, in the opinion of the Investigator, could affect the primary endpoint.
* Participant has significantly impaired hepatic function at the screening or randomization visit
* Participant has received an IMP within the 12 weeks prior to the screening visit.
Inclusion Criteria
Inclusion Criteria:
* Participant has a well-documented clinical history of epilepsy.
* Participant has a clinical diagnosis of Tuberous Sclerosis Complex (TSC) according to the criteria agreed by the 2012 International TSC Consensus Conference.
* All medications or interventions for epilepsy (including ketogenic diet and any neurostimulation devices for epilepsy) must have been stable for 1 month prior to screening and the participant is willing to maintain a stable regimen throughout the trial.
* Participant has a well-documented clinical history of epilepsy.
* Participant has a clinical diagnosis of Tuberous Sclerosis Complex (TSC) according to the criteria agreed by the 2012 International TSC Consensus Conference.
* All medications or interventions for epilepsy (including ketogenic diet and any neurostimulation devices for epilepsy) must have been stable for 1 month prior to screening and the participant is willing to maintain a stable regimen throughout the trial.
Gender
All
Gender Based
false
Healthy Volunteers
No
Last Update Post Date
Last Update Post Date Type
Actual
Last Update Submit Date
Maximum Age
65 Years
Minimum Age
1 Year
NCT Id
NCT02544763
Org Class
Industry
Org Full Name
Jazz Pharmaceuticals
Org Study Id
GWEP1521 Blinded Phase
Overall Status
Completed
Phases
Phase 3
Primary Completion Date
Primary Completion Date Type
Actual
Official Title
A Double-blind, Randomized, Placebo-controlled Study to Investigate the Efficacy and Safety of Cannabidiol (GWP42003-P, CBD) as Add-on Therapy in Patients With Tuberous Sclerosis Complex Who Experience Inadequately-controlled Seizures
Primary Outcomes
Outcome Description
TSC-associated seizures included: focal motor seizures without impairment of consciousness or awareness (Type 1 focal motor); focal seizures with impairment of consciousness or awareness (Type 2 focal); focal seizures evolving to bilateral generalized convulsive seizures (Type 3 focal); and tonic-clonic, tonic, clonic, or atonic seizures that are countable. Percent change from Baseline was calculated as the (post-Baseline value minus the Baseline value) divided by the Baseline value x 100.
Outcome Measure
Percent Change From Baseline in the Number of Tuberous Sclerosis Complex (TSC)-Associated Seizures During the Treatment Period (Maintenance and Titration)
Outcome Time Frame
Baseline; up to Week 16
Secondary Ids
Secondary Id
2015-002154-12
Secondary Outcomes
Outcome Description
Treatment responders are defined as those participants with a ≥ 50% reduction in TSC-associated seizure frequency. TSC-associated seizures included: focal motor seizures without impairment of consciousness or awareness (Type 1 focal motor); focal seizures with impairment of consciousness or awareness (Type 2 focal); focal seizures evolving to bilateral generalized convulsive seizures (Type 3 focal); and tonic-clonic, tonic, clonic, or atonic seizures that are countable. Participants who withdrew from the trial during the treatment period are considered non-responders.
Outcome Time Frame
Baseline; up to Week 16
Outcome Measure
Number of Participants Considered Treatment Responders During the Treatment Period (Maintenance and Titration)
Outcome Description
The combined caregiver and participant summary uses either the caregiver or participant version if only one version was completed, or the caregiver version if both caregiver and participant versions were completed. The CGIC comprised the following question, to be rated on a 7-point scale (1, Very Much Improved; 2, Much Improved; 3, Slightly Improved; 4, No Change; 5, Slightly Worse; 6, Much Worse; 7, Very Much Worse): "Since your child started treatment, please assess the status of your child's overall condition (comparing their condition now to their condition before treatment)." The SGIC comprised the following question, to be rated on a 7-point scale (1, Very Much Improved; 2, Much Improved; 3, Slightly Improved; 4, No Change; 5, Slightly Worse; 6, Much Worse; 7, Very Much Worse): "Since you started treatment, please assess the status of your overall condition (comparing your condition now to your condition before treatment)."
Outcome Time Frame
Baseline; up to Week 16
Outcome Measure
Change From Baseline in the Caregiver Global Impression of Change (CGIC) or Participant Global Impression of Change (PGIC) Score at the Participant's Last Visit
Outcome Description
Total seizures included all seizure types combined. Percent change from Baseline was calculated as the (post-Baseline value minus the Baseline value) divided by the Baseline value x 100.
Outcome Time Frame
Baseline; up to Week 16
Outcome Measure
Percent Change From Baseline in Total Seizures During the Treatment Period (Maintenance and Titration)
Outcome Description
A TEAE was defined as an AE with a start date on or after the first dose of IMP during the Blinded Phase up to and including the date of first dose of the Open-label Extension (OLE) Phase (OLE Day 1).
Outcome Time Frame
up to approximately Week 22
Outcome Measure
Number of Participants With Any Severe Treatment-emergent Adverse Event (TEAE)
Start Date
Start Date Type
Actual
Status Verified Date
First Post Date
First Post Date Type
Estimated
First Submit Date
First Submit QC Date
Std Ages
Child
Adult
Older Adult
Maximum Age Number (converted to Years and rounded down)
65
Minimum Age Number (converted to Years and rounded down)
1
Investigators
Investigator Type
Principal Investigator
Investigator Name
Sheryl Haut
Investigator Email
shaut@montefiore.org
Investigator Phone
718-920-4898