Childhood-onset epilepsy syndrome with developmental and/or epileptic encephalopathy

This study follows 158 people in France who are prescribed Epidyolex (a cannabidiol-based medicine) for seizures as part of their normal care. Researchers will track how long people stay on the treatment, side effects, seizure frequency, and changes in daily functioning and quali…

This study follows about 111 people with Lennox-Gastaut syndrome, Dravet syndrome, or tuberous sclerosis complex who are taking Epidyolex (a CBD oral solution) for seizures. Researchers track how many stay on the drug for a year and how many seizure-free days they have. It's an o…

This pilot study tests whether deep brain stimulation (DBS) of specific brain pathways can safely reduce seizures in people with Lennox-Gastaut syndrome, a severe form of epilepsy. Five participants receive the electrical stimulation as an add-on to their usual treatment. The goa…

This study tests a brain-responsive neurostimulation system in 24 people aged 12 and older with Lennox-Gastaut syndrome whose seizures are not controlled by medication. The device detects and responds to seizure activity in the brain to reduce drop seizures. The goal is to see if…

This phase 3 study is testing the long-term safety and effectiveness of LP352 (Bexicaserin) in 324 children and adults with developmental and epileptic encephalopathy (DEE), including Dravet and Lennox-Gastaut syndromes. Participants who completed earlier studies will receive LP3…

This program provides continued access to the seizure medication perampanel (Fycompa) for people who completed certain earlier studies and are still benefiting from the drug. It runs until the drug is commercially available in their country or no participants remain. Only those a…

This study tests whether an AI tool can help radiologists read brain CT and MRI scans more accurately and quickly. Researchers will compare how well doctors, AI alone, and doctors using AI together can spot abnormalities, urgent findings, and classify diseases. The goal is to red…

This study follows 154 people taking Epidiolex (cannabidiol) for seizures caused by Lennox-Gastaut syndrome, Dravet syndrome, or tuberous sclerosis complex. Researchers will monitor for signs of chronic liver injury and fibrosis over time using blood tests and liver scans. The go…

This study looks at whether specific brain wave patterns on an EEG can predict how well the drug fenfluramine works for people with Lennox-Gastaut Syndrome (LGS), a severe form of epilepsy. Researchers will follow 20 children and adults aged 2 to 35 who are already taking fenflur…

This study gathers MRI, CT, and ultrasound images from 300 adults—some healthy, some with kidney or brain disease—to build a collection for future not-for-profit research. No new treatments are being tested; the goal is to make medical images available to scientists for advancing…