Assessment of Adjunctive Cannabidiol Oral Solution (GWP42003-P) in Children With Tuberous Sclerosis...
Seizure in Participants With Tuberous Sclerosis ComplexSeizure in Participants With Dravet Syndrome1 moreThis study will be conducted to evaluate the safety, pharmacokinetics (PK), and efficacy of adjunctive GWP42003-P in participants < 2 years of age with tuberous sclerosis complex (TSC), Lennox-Gastaut syndrome (LGS), or Dravet syndrome (DS).
A Study of Soticlestat as an Add-on Therapy in Children, Teenagers, and Adults With Lennox-Gastaut...
Lennox Gastaut Syndrome (LGS)The aims of the study are: to learn if soticlestat, when given as add-on therapy, reduces the number of major motor drop seizures in children, teenagers, and adults with Lennox-Gastaut Syndrome. to assess the safety profile of soticlestat when given in combination with other therapies. Participants will receive their standard antiseizure therapy, plus either tablets of soticlestat or placebo. A placebo looks just like soticlestat but will not have any medicine in it. Participants will take soticlestat or placebo for 16 weeks, followed by a gradual dose reduction for 1 week. Then, participants will be followed up for 2 weeks.
Assessment of Potential for Chronic Liver Injury in Participants Treated With Epidiolex (Cannabidiol)...
Lennox Gastaut SyndromeDravet Syndrome1 moreThis study will monitor for potential chronic liver injury and liver fibrosis, in participants treated with cannabidiol oral solution.
Open-label, Long-term Safety Study of LP352 in Subjects With Developmental and Epileptic Encephalopathy...
Developmental and Epileptic EncephalopathyDravet Syndrome1 moreThe objective of this study is to assess the long-term safety, tolerability, and efficacy of adjunctive therapy of LP352 in subjects with developmental and epileptic encephalopathies who completed participation in Study LP352-201.
Investigate Efficacy and Safety of Carisbamate as Adjunctive Treatment for Seizures Associated With...
SeizuresLennox Gastaut SyndromeThe primary objective is to evaluate the efficacy of carisbamate (YKP509) as adjunctive treatment in reducing the number of drop seizures (tonic, atonic, and tonic-clonic) compared with placebo in pediatric and adult subjects (age 4-55 years) diagnosed with Lennox Gastaut Syndrome (LGS).
RNS System LGS Feasibility Study
EpilepsyLennox Gastaut Syndrome5 moreTo generate preliminary safety and effectiveness data for brain-responsive neurostimulation of thalamocortical networks as an adjunctive therapy in reducing the frequency of generalized seizures in individuals 12 years of age or older with Lennox Gastaut Syndrome (LGS) who are refractory to antiseizure medications. The intent is to determine the feasibility and the optimal design of a subsequent pivotal study in order to expand the indication for use for the RNS System as a treatment for patients with medically intractable LGS.
A Study of Soticlestat as an Add-on Therapy in Children and Adults With Dravet Syndrome or Lennox-Gastaut...
Dravet Syndrome (DS)Lennox Gastaut Syndrome (LGS)The main aim of the study is to learn if soticlestat, when given as an add-on therapy, reduces the number of seizures in children and adults with Dravet Syndrome (DS) or Lennox-Gastaut Syndrome (LGS). Participants will receive their standard anti-seizure therapy, plus tablets of soticlestat. There will be scheduled visits and follow-up phone calls throughout the study.
Children's Adaptive Deep Brain Stimulation for Epilepsy Trial (CADET): Pilot
EpilepsyLennox-Gastaut Syndrome1 moreThe CADET Pilot will investigate the safety and feasibility of deep brain stimulation (DBS) to treat children with Lennox-Gastaut syndrome using a novel DBS device (Picostim DyNeuMo-1). Following a 30-day preoperative/baseline assessment phase, all children will have a neurosurgical procedure to implant the device. Implantation will be followed by a 30-day phase of no stimulation (the device is off / inactive) and then a six-month phase of active stimulation (the device is on / active).
Study to Investigate LP352 in Subjects With Developmental and Epileptic Encephalopathies
Developmental and Epileptic EncephalopathyDravet Syndrome1 moreThe objective of this study is to assess the safety, tolerability, efficacy, and pharmacokinetics of adjunctive therapy of LP352 in adults and adolescents with developmental and epileptic encephalopathies.
A Study of Soticlestat in Adults and Children With Rare Epilepsies
EpilepsyDravet Syndrome (DS)1 moreThe main aim is to assess the long-term safety and tolerability of soticlestat when used along with other anti-seizure treatment. Participants will receive soticlestat twice a day. Participants will visit the study clinic every 2-6 months throughout the study. Study treatments may continue as long as the participant is receiving benefit from it.