Clinical Trials & LGS Research

The 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).

This is a Phase 3b/Phase 4 study. The purpose of this study is to learn more about the efficacy of using CBD-OS as an add-on therapy for the treatment of LGS in adults.

In this trial, the potential anti-epileptic effect of low dose fenfluramine in Lennox Gastaut epilepsy will be studied. An exploratory dose finding add-on trial is proposed. At baseline and at the end of the study, ECG and ultrasound of the heart will be performed as part of the safety follow up.

This (DEEp OLE Study) is a multicentre, open-label study to investigate the long-term safety, efficacy, tolerability, and pharmacokinetics (PK) of LP352 in the treatment of seizures in children and adults with DEE who completed Study LP352-301 or LP352-302. The study consists of 3 main phases: Screening, Titration period and Maintenance period, followed by a Taper period and Follow-Up. The total duration of the study will be approximately 14 months.

This is a multicenter, Phase 3, randomized, double-blind, placebo-controlled study designed to evaluate the efficacy and safety of clemizole HCL (EPX-100) as adjunctive therapy in children and adult participants with Lennox-Gastaut syndrome (LGS).

The goal of this real world data study is to evaluate the clinical utility of remote patient monitoring solution (using Byteflies' EpiCare@Home with reduced EEG montage and other vital signs) with Dravet and LGS patients (ages 3 and up with the exclusion of adults above weight allowing variable titration) to identify an optimal Fenfluramine treatment. Patients will wear one or more small portable and medically certified measuring devices. Through these devices, electroencephalography (EEG) signals, as well as electro-cardiography (ECG), heart rate, respiration rate, and physical activity are measured, which allows the patient's physician to detect potential seizures, and thus gain more insights. Participants will be asked to wear the devices three times at home for remote monitoring periods lasting between 3 and 7 consecutive days. The duration of each monitoring period will be determined by the physician based on the type of epilepsy and the frequency of seizures.

The goal of this clinical trial is to explore a new type of personalized brain stimulation that works during day time and night time hours using the Medtronic Percept Deep Brain Stimulation (DBS) device in patients with Lennox-Gastaut Syndrome. The main question(s) this study aims to answer is: 1. Does using the personalized DBS reduce motor seizures compared to conventional DBS? 2. Is the number of seizures reported by caregivers different for patients using the personalized DBS? 3. How often do patients using the personalized DBS experience undesired side effects? Researchers will compare the personalized DBS that works night time, personalized DBS device that works during the day time, and conventional DBS. Participants will: 1. Have their seizures and sleep patterns recorded for 3-months 2. Assess their neurocognitive function 3. Answer questionnaires about communication, movement, and sleep quality 4. Wear a sleep headband and seizure warning watch for 5 nights 5. Complete a mood and sleep assessment 6. Have a 3T and possibly 7T MRI 7. Be implanted with stereo-encephalography and undergo 3\~5 days of monitoring 8. Have the stereo-encephalography taken out 9. Receive DBS implantation through surgery and have several months of stimulation and no stimulation periods 10. Have routine clinical visits to check on healing after surgery 11. Have their caregiver help them keep a dairy about their seizures, sleep and quality of life

To 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.

This (DEEp OCEAN Study) is a double-blind, randomized, placebo-controlled, multicenter study to investigate the efficacy, safety, and tolerability of LP352 in the treatment of seizures in children and adults with DEE. The study consists of 3 main phases: Screening, Titration period, Maintenance period, followed by a Taper period and Follow-Up. The total duration of the study will be approximately 24 months.

The purpose of this study is to investigate the effect on the frequency of all seizures (convulsive and drop) in participants treated with TAK-935 compared to placebo.

The goal of this clinical trial is to learn the best way to switch children with Lennox-Gastaut Syndrome (LGS) or Dravet Syndrome (DS) taking 'artisanal' (non pharmaceutical-grade) cannabidiol (CBD) to Epidiolex for treatment of seizures. The main questions it aims to answer are: * How well does a gradual switch from 'artisanal' CBD to Epidiolex work? * Does the same dose of Epidiolex as 'artisanal' CBD work best? * What side-effects or medical problems do participants have when switching from 'artisanal' CBD to Epidiolex? Researchers will examine how successful switching from 'artisanal' CBD to Epidiolex is. Participants will: * Gradually increase their dose of Epidiolex and reduce their dose of 'artisanal' CBD until they are taking just Epidiolex * Visit the clinic five times over 20 weeks for checkups and tests * Keep a diary of their seizures, symptoms and the number of times they use a rescue seizure medication

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.