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ClinicalTrials.gov public records Last synced May 21, 2026, 6:19 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 38 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Lennox-Gastaut Syndrome Clear all
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Lennox Gastaut Syndrome (LGS)
Interventions
Placebo, Soticlestat
Drug
Lead sponsor
Takeda
Industry
Eligibility
2 Years to 55 Years
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
24
States / cities
Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Seizures
Interventions
Cannabidiol Oral Solution
Drug
Lead sponsor
INSYS Therapeutics Inc
Industry
Eligibility
1 Year to 18 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
11
States / cities
San Francisco, California • Miami, Florida • Pensacola, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2018 · Synced May 21, 2026, 6:19 PM EDT
Enrolling by invitation No phase listed Observational
View directory record Official record
Conditions
Lennox Gastaut Syndrome (LGS)
Interventions
fenfluramine HCl
Drug
Lead sponsor
University of Chicago
Other
Eligibility
2 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced May 21, 2026, 6:19 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Epilepsy
Interventions
ezogabine/retigabine
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Years to 17 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
4
States / cities
Los Angeles, California • Wellington, Florida • Memphis, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2020 · Synced May 21, 2026, 6:19 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Lennox-Gastaut Syndrome (LGS), Dravet Syndrome (DS)
Interventions
CBD: GT4 Transdermal Delivery System
Drug
Lead sponsor
Alexander Rotenberg
Other
Eligibility
2 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced May 21, 2026, 6:19 PM EDT
Withdrawn Not applicable Interventional
View directory record Official record
Conditions
Epilepsy, Dravet Syndrome, Lennox-Gastaut Syndrome, Tuberous Sclerosis, Focal Seizures
Interventions
Turmeric
Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
1 Year to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2018 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Epilepsy, Epilepsy, Generalized, Seizures
Interventions
Clobazam Low Dose, Clobazam Medium Dose, Clobazam High Dose, Placebo
Drug
Lead sponsor
Lundbeck LLC
Industry
Eligibility
2 Years to 60 Years
Enrollment
238 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
34
States / cities
Huntsville, Alabama • Phoenix, Arizona • Los Angeles, California + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2012 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy Subjects
Interventions
Carisbamate
Drug
Lead sponsor
SK Life Science, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 6, 2021 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Lennox Gastaut Syndrome
Interventions
Carisbamate
Drug
Lead sponsor
SK Life Science, Inc.
Industry
Eligibility
2 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
5
States / cities
Baltimore, Maryland • Lebanon, New Hampshire • Portland, Oregon + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced May 21, 2026, 6:19 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Seizures, Lennox Gastaut Syndrome
Interventions
Carisbamate
Drug
Lead sponsor
SK Life Science, Inc.
Industry
Eligibility
4 Years to 55 Years
Enrollment
252 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
22
States / cities
Palo Alto, California • Jacksonville, Florida • Orlando, Florida + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Epilepsy, Epilepsy, Generalized, Seizures
Interventions
Clobazam Low Dose, Clobazam High Dose
Drug
Lead sponsor
Lundbeck LLC
Industry
Eligibility
2 Years to 30 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
14
States / cities
Phoenix, Arizona • Los Angeles, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2012 · Synced May 21, 2026, 6:19 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Generalized Epilepsy, Infantile Spasms, Metabolic Disease, Partial Epilepsy, Seizures
Interventions
18 FDG
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1992 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced May 21, 2026, 6:19 PM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Epilepsy, Lennox Gastaut Syndrome, Lennox-Gastaut Syndrome, Intractable, Seizures, Seizures, Generalized
Interventions
RNS System
Device
Lead sponsor
NeuroPace
Industry
Eligibility
12 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
6
States / cities
Birmingham, Alabama • San Francisco, California • Atlanta, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced May 21, 2026, 6:19 PM EDT
Available No phase listed Expanded access
View directory record Official record
Conditions
Dravet Syndrome, Lennox Gastaut Syndrome, Developmental and Epileptic Encephalopathies
Interventions
LP352
Drug
Lead sponsor
Longboard Pharmaceuticals
Industry
Eligibility
2 Years to 65 Years
U.S. locations
19
States / cities
Downey, California • Los Angeles, California • San Francisco, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2025 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Developmental and Epileptic Encephalopathy, Dravet Syndrome, Lennox Gastaut Syndrome
Interventions
LP352, Placebo
Drug
Lead sponsor
Longboard Pharmaceuticals
Industry
Eligibility
12 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
29
States / cities
Tucson, Arizona • Little Rock, Arkansas • Downey, California + 24 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2024 · Synced May 21, 2026, 6:19 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Epilepsy, Dravet Syndrome (DS), Lennox-Gastaut Syndrome (LGS)
Interventions
Soticlestat
Drug
Lead sponsor
Takeda
Industry
Eligibility
2 Years and older
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
27
States / cities
Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Dravet Syndrome, Lennox Gastaut Syndrome, Epileptic Encephalopathy
Interventions
ZX008 (Fenfluramine Hydrochloride)
Drug
Lead sponsor
Zogenix, Inc.
Industry
Eligibility
2 Years and older
Enrollment
412 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
26
States / cities
Tucson, Arizona • Los Angeles, California • San Diego, California + 23 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2025 · Synced May 21, 2026, 6:19 PM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Lennox-Gastaut Syndrome (LGS)
Interventions
Placebo, Perampanel
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
2 Years and older
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
31
States / cities
Little Rock, Arkansas • Palo Alto, California • Gulf Breeze, Florida + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Lennox-Gastaut Syndrome
Interventions
Rufinamide, Any other approved Antiepileptic Drug
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
1 Year to 3 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
22
States / cities
San Diego, California • Aurora, Colorado • Washington D.C., District of Columbia + 19 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2019 · Synced May 21, 2026, 6:19 PM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Seizure in Participants With Tuberous Sclerosis Complex, Seizure in Participants With Dravet Syndrome, Seizure in Participants With Lennox-Gastaut Syndrome
Interventions
GWP42003-P
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
1 Month to 23 Months
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
Little Rock, Arkansas • Los Angeles, California • Chicago, Illinois + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced May 21, 2026, 6:19 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Epilepsy, Localization-related Epilepsy, Infantile Spasms, Lennox-Gastaut Syndrome, Polymicrogyria, Periventricular Heterotopias
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
4 Weeks to 60 Years
Enrollment
4,150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
23
States / cities
Birmingham, Alabama • Phoenix, Arizona • San Francisco, California + 19 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2018 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Epilepsy, Dravet Syndrome, Lennox-Gastaut Syndrome
Interventions
TAK-935, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
2 Years to 17 Years
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
15
States / cities
Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced May 21, 2026, 6:19 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Lennox Gastaut Syndrome
Interventions
ZX008 0.2 or 0.8 mg/kg/day, Matching Placebo
Drug
Lead sponsor
Zogenix International Limited, Inc., a subsidiary of Zogenix, Inc.
Industry
Eligibility
2 Years to 35 Years
Enrollment
296 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
30
States / cities
Tucson, Arizona • Los Angeles, California • San Francisco, California + 26 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced May 21, 2026, 6:19 PM EDT
Enrolling by invitation Phase 3 Interventional
View directory record Official record
Conditions
Developmental and Epileptic Encephalopathy
Interventions
LP352
Drug
Lead sponsor
Longboard Pharmaceuticals
Industry
Eligibility
2 Years to 66 Years
Enrollment
324 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
9
States / cities
Little Rock, Arkansas • Los Angeles, California • Gulf Breeze, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced May 21, 2026, 6:19 PM EDT