View clinical trials related to Dravet Syndrome.
Filter by:This is a prospective, observational study on approximately 70 Real World participants affected by LGS or DS, treated with Epidyolex® as prescribed in the summary of product characteristics. The eligible participants are expected to participate in the study for a duration of 56 weeks of treatment.
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.
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 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.
Dravet syndrome is a rare form of severe epilepsy that begins in the first year of life and is associated with frequent and/or prolonged seizures. Individuals with Dravet Syndrome often experience a range of comorbidities, including behavioral and developmental delays, movement and balance issues, sleep difficulties, chronic infections, and growth and nutritional issues. Patients with Dravet syndrome are at high risk of death due to SUDEP (Sudden Unexpected Death in Epilepsy), prolonged seizures, seizure-related accidents, and infections. Due to the severity of this condition, parents of children with Dravet syndrome are typically highly involved in their child's 24-hour care and this has a considerable impact on family life. Recent studies have highlighted the profound impact that such caregiving has on physical health, mental health, social function and financial resources. In particular, caregivers report high levels of stress and anxiety, fatigue, depression and social isolation. However, there is currently a lack of effective interventions to reduce the negative impact of caregiving on caregivers. The aim of this study is to prospectively study carers of individuals with Dravet syndrome to identify pharmacological and psychological factors that are associated with increased or decreased vulnerability to stress, depression and anxiety. Using a naturalistic, observational design the investigators will assess a cohort of Dravet Syndrome carers every six months for 3 years in order to further characterise trajectories of caregiver burden and the factors that influence this, including factors related to the person with Dravet syndrome (e.g. age, seizure frequency/severity, treatment/medications, comorbidities) and factors related to the carer and family environment (e.g. social engagement/isolation, fatigue, finances, relationships). The investigators will use both standardized questionnaires and a neurocognitive task (Facial Expression Recognition Task) to assess vulnerability to anxiety and depression. The study will be conducted online.
Rare epilepsies as a whole account for 20-30% of epilepsies, but knowledge about prognostic factors is currently limited. This means that it is difficult to provide adequate information to families at diagnosis and during follow-up. Prognostic factors are also important for management as they can have an impact on the patient's outcome (time to intervention, choice of one molecule over another, etc.). Finally, few treatments are currently available for these epilepsies. One of the limitations to the development of treatments is the lack of real life data as it is difficult to create reliable primary endpoints such as the rate of patients becoming seizure free naturally compared to a therapeutic intervention. The aim of this real-life study is to evaluate the response to treatment as well as to see the evolution of cognitive and psychiatric comorbidities. As explained above, there are very few randomised trials except for 3 rare epilepsies (infantile spasm syndrome, Dravet syndrome, Lennox-Gastaut syndrome). This has led to the virtual absence of management recommendations, including for the three syndromes mentioned above, where attempts at treatment algorithms have been proposed, although these have not been able to be considered as evidence-based recommendations. As a result, there is some diversity in the management of rare epilepsies from one centre to another. However, this diversity in management can be an asset in a real-life study. This will make it possible to compare different management methods, both in terms of seizure control and medium-term outcome.
This study will monitor for potential chronic liver injury and liver fibrosis, in participants treated with cannabidiol oral solution.
Stoke Therapeutics is evaluating the long-term safety & tolerability of repeated doses of STK-001 in patients with Dravet syndrome who previously participated in studies of STK-001. Change in seizure frequency and overall clinical status, and quality of life will be measured as secondary endpoints in this open-label study.
Dravet syndrome (DS) is an epileptic encephalopathy caused by pathogenic variants in the SCN1A gene resulting in medically refractory epilepsy and psychomotor delays. As a pilot study assessing for feasibility, the investigators aim to test whether alterations in cortical excitatory:inhibitory ratio can be reliably recorded. The investigators will utilize transcranial magnetic stimulation (TMS) metrics of cortical excitatory and inhibitory tone as an initial step towards translating findings from rodent genetic models of DS into disease-specific biomarkers and offer future measures of therapeutic target engagement in this patient population. Participants will complete two visits, each consisting of a TMS session and an EEG session. Visits will be scheduled 4-8 weeks apart.
The clinical trial "A Prospective Single-Center Single-Arm Clinical Trial on Cognitive Effect of Cannabidiol (CBD-OS®) on Dravet syndrome and Lennox-Gastaut Syndrome" is a single-group phase III study done in single tertiary referral center in Seoul, Korea. Chief investigator is Dr. Hoon-Chul Kang of Severance Hospital, Yonsei University College of Medicine. Associate investigators are Dr. Heung Dong Kim, Joon Soo Lee, Se Hee Kim, Han Som Choi, Ji Hoon Na, Dong Hwa Yang, and Hee Jung Kang, of Severance Hospital, Yonsei University College of Medicine. The aim of the study is to evaluate the effect of cannabidiol (CBD-OS®) on cognitive functions in patients aged from 2 to 18 years old diagnosed with Dravet syndrome or Lennox-Gastaut syndrome. The duration of study is planned as one year, after patient recruitment of 6 months. The intervention period in each patient is 24 weeks, with 2 weeks of medication titration, stabilization period of 10 weeks, and maintenance period of 12 weeks. The recruitment goal of patient number is 104, considering the study power of 90 percent. Primary outcomes are improvement of cognitive and development and improvement of seizure outcome. Secondary outcomes are improvement in behavior and quality of life. Safety monitoring criteria are adverse event profiles and physician's and caregiver's global assessment. Statistical analysis of outcomes is subject only to the patients who completed the 24-week medication and 2 times of tests before and after treatment of cannabidiol. Evaluation of seizure outcomes would include all patients who completed the 24-week medication and those who dropped out of the study, either by follow-up loss or discontinuation of medication due to incomplete seizure control or adverse effect of the medication. To evaluate safety, the investigators would measure adverse events and dropout rates by percentage. The investigators would analyze overall evaluation of the caregivers and investigator. Serious adverse events would be noted after causality evaluation.