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ClinicalTrials.gov public records Last synced May 21, 2026, 10:13 PM EDT

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Showing 25–38 of 14 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
Epilepsy, Lennox Gastaut Syndrome
Interventions
GWP42003-P, Placebo control
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
2 Years to 55 Years
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
20
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced May 21, 2026, 10:13 PM EDT
Active, not recruiting Phase 4 Interventional
View directory record Official record
Conditions
Lennox Gastaut Syndrome, Dravet Syndrome, Tuberous Sclerosis Complex
Interventions
Cannabidiol
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
1 Year and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
26
States / cities
Little Rock, Arkansas • Downey, California • Long Beach, California + 22 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced May 21, 2026, 10:13 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Lennox Gastaut Syndrome
Interventions
Clemizole HCl, Placebo
Drug
Lead sponsor
Epygenix
Industry
Eligibility
2 Years to 55 Years
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
20
States / cities
Little Rock, Arkansas • Orange, California • Wilmington, Delaware + 14 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced May 21, 2026, 10:13 PM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Developmental and Epileptic Encephalopathy, Dravet Syndrome, Lennox-Gastaut Syndrome
Interventions
LP352, bexicaserin
Drug
Lead sponsor
Longboard Pharmaceuticals
Industry
Eligibility
12 Years to 65 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
25
States / cities
Little Rock, Arkansas • Downey, California • San Francisco, California + 20 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced May 21, 2026, 10:13 PM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Epilepsy
Interventions
retigabine/ezogabine
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Years to 29 Years
Enrollment
4 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 Oct 29, 2020 · Synced May 21, 2026, 10:13 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Epilepsy, Seizures, Lennox-Gastaut Syndrome
Interventions
Ketogenic diet
Behavioral
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
1 Year to 10 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1997
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 21, 2006 · Synced May 21, 2026, 10:13 PM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Lennox Gastaut Syndrome
Interventions
Not listed
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
Up to 26 Years
Enrollment
4,680 participants
Timeline
2022 – 2025
U.S. locations
4
States / cities
Chicago, Illinois • Ann Arbor, Michigan • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2024 · Synced May 21, 2026, 10:13 PM EDT
Terminated Not applicable Interventional
View directory record Official record
Conditions
Focal Epilepsy, Intractable Epilepsy, Epileptic Encephalopathy, Lennox Gastaut Syndrome, Symptomatic Epilepsy, Generalized Epilepsy
Interventions
Reveal LINQ ICM System
Device
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 50 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced May 21, 2026, 10:13 PM EDT
Terminated Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Lennox-Gastaut Syndrome, Dravet Syndrome
Interventions
12-Lead ECG, Cannabidiol
Procedure · Drug
Lead sponsor
Gillette Children's Specialty Healthcare
Other
Eligibility
2 Years to 30 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 29, 2022 · Synced May 21, 2026, 10:13 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
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
7
States / cities
Baltimore, Maryland • Lebanon, New Hampshire • Durham, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated May 29, 2023 · Synced May 21, 2026, 10:13 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Epilepsy, Lennox-Gastaut Syndrome
Interventions
GWP42003-P 20 mg/kg/day Dose, Placebo
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
2 Years to 55 Years
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
17
States / cities
Tampa, Florida • Atlanta, Georgia • Chicago, Illinois + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2022 · Synced May 21, 2026, 10:13 PM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Dravet Syndrome, Lennox Gastaut Syndrome
Interventions
ZX008 0.2 to 0.8 mg/kg/day, Cannabidiol
Drug
Lead sponsor
Zogenix International Limited, Inc., a subsidiary of Zogenix, Inc.
Industry
Eligibility
2 Years to 18 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Atlanta, Georgia • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Nov 30, 2023 · Synced May 21, 2026, 10:13 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Developmental and Epileptic Encephalopathy
Interventions
LP352, Placebo
Drug
Lead sponsor
Longboard Pharmaceuticals
Industry
Eligibility
2 Years to 65 Years
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
30
States / cities
Little Rock, Arkansas • Los Angeles, California • Palo Alto, California + 23 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced May 21, 2026, 10:13 PM EDT
Terminated Phase 3 Interventional
View directory record Official record
Conditions
Dravet Syndrome (DS), Lennox Gastaut Syndrome (LGS)
Interventions
Soticlestat
Drug
Lead sponsor
Takeda
Industry
Eligibility
2 Years to 56 Years
Enrollment
352 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
26
States / cities
Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced May 21, 2026, 10:13 PM EDT