Developmental and epileptic encephalopathy, 4
MONDO:0012812Early infantile epileptic encephalopathy 4 (EIEE4) is a form of early infantile epileptic encephalopathy, which refers to a group of neurological conditions characterized by severe seizures beginning in infancy. EIEE4, specifically, is often associated with partial complex or tonic-clonic seizures, although other seizure types have been reported. Other signs and symptoms mayinclude intellectual disability, reduced muscle tone (hypotonia), hypsarrhythmia (an irregular pattern seen on EEG), dyskinesia (involuntary movement of the body), and spastic di- or quadriplegia. EIEE4 is caused by changes (mutations) in the STXBP1 gene and is inherited in an autosomal dominant manner. Treatment is based on the signs and symptoms present in each person. For example, certain medications are often prescribed to help control seizures, although they are not always effective in all people with the condition.
Also known as: DEE4, EIEE4, STXBP1 early infantile epileptic encephalopathy, STXBP1-related encephalopathy, developmental and epileptic encephalopathy 4, developmental and epileptic encephalopathy, 4, early infantile epileptic encephalopathy 4, early infantile epileptic encephalopathy caused by mutation in STXBP1
21 clinical trials for this condition and its sub-types.
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New inhaler aims to halt seizures in seconds
Disease control Recruiting nowThis Phase 3 trial tests a single inhaled dose of alprazolam (a fast-acting sedative) to stop prolonged seizures in people aged 12 and older. The goal is to see if it can end a seizure within 90 seconds and prevent it from coming back for at least 2 hours. About 350 participants …
Phase: PHASE3 • Sponsor: UCB Biopharma SRL • Aim: Disease control
Last updated Aug 16, 2026 00:00 UTC
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Can a new Add-On seizure drug stay safe for kids over time?
Disease control Recruiting nowThis trial is testing the long-term safety of brivaracetam, an anti-seizure medication, when used alongside other epilepsy treatments in children. Researchers are monitoring for side effects, including serious ones, over an extended period. The study includes children who previou…
Phase: PHASE3 • Sponsor: UCB Biopharma SRL • Aim: Disease control
Last updated Jul 29, 2026 00:00 UTC
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Can mapping rare genetic variants unlock better care for autism-related disorders?
Knowledge-focused Recruiting nowThis international online study collects medical, behavioral, and developmental information from people with rare genetic changes that are linked to autism and other neurodevelopmental disorders. By partnering with families, researchers aim to build a detailed database to improve…
Sponsor: Simons Searchlight • Aim: Knowledge-focused
Last updated Jul 25, 2026 00:00 UTC
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Rehearsal and sleep: unlocking memory secrets in epilepsy
Knowledge-focused Recruiting nowThis study investigates how rehearsal (repeating information) and sleep help solidify memories in people with epilepsy. Participants learn object-location pairs, with some pairs rehearsed and others not, and their memory is tested after a short delay and again after 12 hours—eith…
Sponsor: Hospices Civils de Lyon • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:03 UTC
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Researchers launch major study to understand rare childhood epilepsy disorders
Knowledge-focused Recruiting nowThis study tracks children and adults with genetic developmental and epileptic encephalopathy (DEE) over time. It does not test any treatment but collects information on development, seizures, and quality of life through in-person visits, virtual visits, or online surveys. The go…
Sponsor: Weill Medical College of Cornell University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:06 UTC
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Groundbreaking study paves way for STXBP1 therapies
Knowledge-focused Recruiting nowThis study follows 120 people with STXBP1-related disorders, a rare genetic condition causing severe developmental delays and seizures. Researchers aim to track how the disease changes over time and identify the best ways to measure improvement. This work will help design future …
Sponsor: European STXBP1 Consortium • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:02 UTC
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Researchers track rare genetic disorders to prepare for future treatments
Knowledge-focused Recruiting nowThis study is observing 600 people of any age with STXBP1 or SYNGAP1 gene mutations to better understand how these disorders affect development, seizures, and quality of life. No treatment is given; instead, researchers will collect data from routine clinical assessments over tim…
Sponsor: Children's Hospital of Philadelphia • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:55 UTC
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Super MRI scans aim to unlock secrets of brain resilience
Knowledge-focused Recruiting nowThis study uses powerful MRI scanners to look at the brains and spinal cords of 700 people, including healthy volunteers and those with conditions like multiple sclerosis, Alzheimer's, and Parkinson's. The goal is to understand why some brains stay healthy while others decline. R…
Sponsor: Assistance Publique Hopitaux De Marseille • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:52 UTC