Active clinical trials for "Epilepsies, Myoclonic"

The 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.

Stoke Therapeutics is evaluating the safety and tolerability of single and multiple ascending doses of STK-001 in patients with Dravet syndrome. Change in seizure frequency, overall clinical status, and quality of life will be measured as secondary endpoints in this open-label study.

The 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.

This is an international, multicenter, open-label, long-term safety study of ZX008 in subjects with Dravet syndrome, Lennox-Gastaut syndrome or epileptic encephalopathy

This study will non-invasively obtain levels of GABA in the brain of children with SCN1A+DS and neurodeveloping children through evoked and induced cortical responses, correlate them with the BOLD responses, and with the levels of GABA in their blood.

Dravet Syndrome (DS) is a severe epileptic encephalopathy, which main cause is mutations of SCN1A, the gene coding for the Nav1.1 voltage-gated sodium channel. DS is characterized by childhood onset, severe cognitive deficit and drug-resistant seizures, including several generalized convulsive seizures per day, frequent status epilepticus and high seizure-related mortality rate. Sudden and unexpected death in epilepsy (SUDEP) represents the major cause of premature deaths. The risk of SUDEP is thus about 9/1000-person-year in comparison with about 5/1000-person-year in the whole population of patients with drug-resistant epilepsies. Experimental and clinical data suggest that SUDEP primarily result from a postictal central respiratory dysfunction. SUDEP in DS, might be the result of a seizure-induced fatal apnea in a patient who had developed epilepsy-related vulnerability to central autonomic and/or respiratory dysfunction. However, a key clinical issue which remains to be addressed is the temporal dynamics of the onset and evolution of the autonomic vulnerability in these patients. The main clinical risk factor of SUDEP is the frequency of convulsive seizures and the SUDEP risk can vary along the evolution of epilepsy. Although non-fatal seizure-induced ataxic breathing can be observed in patients with DS, whether or not repetition of seizures results in long-term alterations of breathing remains unclear. In the AUTONOMIC project, it will be investigate in a homogenous population of patients with DS the exact interplay between epilepsy-related cardiac and respiratory alterations on the one hand and the relation between the underlying neurodevelopmental disease, the repetition of seizure per se and these epilepsy-related autonomic alterations on the other hand. Autonomic functions will be investigated in the inter-ictal period (i.e. in the absence of immediate seizures, Work Package 1 (WP1)) and in the peri-ictal period, i.e. in the immediate time before, during (if possible) and after seizures (WP2). A multicenter cohort will be constituted, allowing to collect the inter-ictal and ictal cardio-respiratory data required in the 2 WP. The study will be sponsored by the Lyon's University Hospital. Patients will be recruited over a period of 24 months in one of the three participating clinical center. All patients will first enter in a prospective baseline period of 3 to 6 months duration in order to collect seizure frequency. After this period, all patients will then undergo a 24-48 hours video-EEG recordings as part of the routine clinical care. The monitoring will also include a full-night polysomnography. This patients will be eligible for inclusion in an extension follow-up study will monitor vital status every year in order to investigate long-term mortality, including SUDEP. The AUTONOMIC project will provide important results which will pave the way to develop and eventually validate therapeutic intervention to prevent SUDEP. By deciphering the exact interplay between epilepsy-related cardiac and respiratory alterations on the one hand and the relation between the underlying neurodevelopmental disease, the repetition of seizure per se and these epilepsy-related autonomic alterations on the other hand, the project will primarily deliver clinically relevant biomarkers.

Doose syndrome is a rare epileptic syndrome that can lead to learning difficulties and a poor quality of life. The goal of this study is to evaluate the evolution of epilepsy and its consequences on cognitive development and learning issues in children with Doose syndrome.

Full Title: Fenfluramine for the treatment of refractory Epilepsy in Adult Dravet patients Short Title: Fenfluramine for Adult Dravet patients Clinical Phase: Phase III Sample Size: A total of 15 participants will be included in the study. Study Population: Adult patients (18 years and older) with drug-resistant epilepsy (maintained on their existing medications, with exception of cannabidiol) and genetically confirmed Dravet syndrome will be recruited to participate in the study. Accrual Period: 12 months Study Design: Open label, non-randomized and uncontrolled add-on trial in adults (18 years of age and older) residing in Ontario, with refractory motor seizures and maintained on their existing antiepileptic medications, with exception of cannabidiol. Study Duration: • Treatment period: 12 months Study duration: 28 months Study Agent/ Intervention/ Procedure: Name of study drug: fenfluramine (FINTEPLA) Dose and frequency: starting at 0.1 mg/kg twice daily, maximum 26 mg/day, in patients not taking concomitant stiripentol; starting at 0.1 mg/kg twice daily, maximum of 17 mg/day in patients taking concomitant stiripentol. All doses are divided to twice a day. Duration: Baseline phase: 4 weeks (no study drug) Titration phase: 2 weeks (if not taking stiripentol) to 3 weeks (if the patient is taking stiripentol) Treatment phase: 12 weeks Extension phase: up to 38 weeks, for patients who had at least a 50% decrease in seizure frequency Post-trial washout phase: 2 weeks (if not taking stiripentol) to 3 weeks (if the patient is taking stiripentol) Route of administration: Oral Efficacy and safety points of interest Monthly convulsive seizure frequency (MCSF) reduction ≥ 50% Improvement in motor function Improvement in Cognition and Behavior Improvement in Quality of Sleep Improvement in Quality of life Determination of Cardiovascular safety in adults Responder analysis (≥25%, ≥75%, or 100% reduction in mean MCSF) Longest period of seizure freedom Number of Emergency room visits Use of rescue medication (number of days in 28 day-periods) Duration of post-ictal stage Frequency of other seizure types Body weight changes Patient's global functioning prior to and after study (Clinical Global Impressions Scale) Trial registration: www.clinicaltrials.gov

ENDEAVOR is a Phase 1/2, 2-part, multicenter study to evaluate the safety and efficacy of ETX101 in participants with SCN1A-positive Dravet syndrome aged 6 to 36 months. Part 1 follows an open-label, dose-escalation design, and Part 2 is a randomized, double-blind, sham delayed-treatment control, dose-selection study.

The present study aims to collect data regarding the history of the disease, previous and current treatments, and the clinical status of Dravet patients during the 3 months prior to stiripentol initiation, the first 3 months on stiripentol and the last 3 months on stiripentol (irrespective of stiripentol discontinuation).