Infantile spasms
MONDO:0018097A rare epilepsy syndrome characterized by onset of epileptic spasms in infants between 2 and 12 months of age, and rarely up to 24 months. Infants may have no antecedent history, or a history reflecting the underlying cause. The classical triad of epileptic spasms, hypsarrhythmia and developmental stagnation or regression is historically referred to as West syndrome.
Also known as: IESS, West syndrome, West's syndrome, infantile epileptic spasms syndrome, infantile spasms, infantile spasms syndrome, intellectual disability-hypsarrhythmia syndrome, X-linked infantile spasm syndrome
21 clinical trials for this condition and its sub-types.
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Broader categories
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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 Jul 03, 2026 00:00 UTC
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New hope for kids with rare epilepsy: drug trial targets seizure control
Disease control Recruiting nowThis study tests an investigational drug called relutrigine in 160 children with a severe form of epilepsy called developmental and epileptic encephalopathy (DEE). The goal is to see if the drug can safely reduce monthly seizure frequency compared to a placebo. After the initial …
Phase: PHASE3 • Sponsor: Praxis Precision Medicines • Aim: Disease control
Last updated Jun 27, 2026 12:31 UTC
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Could a Weight-Loss drug stop seizures in babies?
Disease control Recruiting nowThis study tests the drug fenfluramine in 10 children aged 12 to 36 months whose infantile spasms did not get better with standard treatments. The children take fenfluramine for 21 days, and doctors check brain waves and seizure diaries to see if the spasms stop. If it helps, the…
Phase: PHASE2 • Sponsor: Children's Hospital of Orange County • Aim: Disease control
Last updated Jun 27, 2026 12:08 UTC
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High-Fat diet may stop infant seizures before they start
Prevention Recruiting nowThis early-phase study tests whether a ketogenic (high-fat) diet can prevent epileptic spasms in infants with genetic epilepsy. Ten babies under 9 months old will receive the diet and be monitored with regular EEGs. The goal is to see if this approach is safe and feasible, potent…
Phase: PHASE1 • Sponsor: Heather Olson • Aim: Prevention
Last updated Jun 27, 2026 09:01 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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Scientists track 1,000 kids with rare epilepsies to uncover better treatments
Knowledge-focused Recruiting nowThis study follows 1,000 children and teens with rare epilepsies (like West and Dravet syndromes) to see how different treatments affect their seizures and thinking skills. Researchers will compare care across hospitals to find what works best. The goal is to give families cleare…
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:07 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