Clinical trials

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Search and review clinical trials. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

A Study to Investigate LP352 in Children and Adults With Developmental and Epileptic Encephalopathies (DEE)

This (DEEp OCEAN Study) is a double-blind, randomized, placebo-controlled, multicenter study to investigate the efficacy, safety, and tolerability of LP352 in the treatment of seizures in children and adults with DEE. The study consists of 3 main phases: Screening, Titration period, Maintenance period, followed by a Taper period and Follow-Up. The total duration of the study will be approximately 24 months.

Participants needed: 320
Trial details
Phase: Phase 3Age: 2-65Biological sex: AllType: InterventionalSponsor: Longboard PharmaceuticalsUpdated: Jun 12, 2026Locations: 114
Eligibility criteria

Onset of seizures at ≤8 years old [+13]

The participant has a diagnosis of Dravet Syndrome (DS) or has a mutation of the... [+7]

Status: Recruiting

A Phase 3, Placebo-Controlled Study to Investigate LP352 in Children and Adults With Dravet Syndrome (DS)

This (DEEp SEA Study) is a double-blind, randomized, placebo-controlled, multicenter study to investigate the efficacy, safety, and tolerability of LP352 in the treatment of seizures in children and adults with DS. The study consists of 3 main phases: Screening, Titration period, and Maintenance period, followed by a Taper period and Follow-Up. Participants will be randomized to LP352 or placebo. The total duration of the study will be approximately 24 months.

Participants needed: 160
Trial details
Phase: Phase 3Age: 2-65Biological sex: AllType: InterventionalSponsor: Longboard PharmaceuticalsUpdated: Jun 12, 2026Locations: 101
Eligibility criteria

Participants with seizure onset age >1 and <20 months [+6]

The participant has a history of infantile/epileptic spasms. [+7]

Status: Available

Intermediate-Size Expanded Access Protocol (EAP) for LP352

This is an intermediate-size expanded access program (EAP) study. The purpose of this EAP is to provide continued access to LP352, an investigational drug product being investigated in participants with DEEs. The EAP study will allow continued treatment with LP352 for eligible participants diagnosed with treatment resistant DEEs who successfully completed an LP352 Clinical Trial (Enrollment by Invitation) or an immediate family member who has the exact same gene mutation resulting in the same DEE epilepsy syndrome phenotype or a patient who previously participated in the lorcaserin EAP.

Trial details
Age: 2-65Biological sex: AllType: Expanded AccessSponsor: Longboard PharmaceuticalsUpdated: Jan 22, 2025Locations: 22
Eligibility criteria

Participant and/or participant's legally authorized representative is willing an... [+3]

Participant was discontinued from an LP352 Clinical Trial for any reason. [+1]