['tuberous sclerosis complex', 'seizures']
['gwp42003-p', 'placebo']

        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.
      