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
22 clinical trials for this condition and its sub-types, 6 tagged with Developmental and epileptic encephalopathy, 4 itself.
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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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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