Drugs / bexicaserin
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bexicaserin

also known as LP352 · Bexicaserina · Bexicaserine

Small molecule

Developed for
Dravet syndrome · Lennox-Gastaut syndrome · developmental and epileptic encephalopathy
Investigated by
Longboard Pharmaceuticals

Trials 6

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 1/21 trial
Phase 1/2 NCT05364021 Mar 2022 → Nov 2023 Dravet syndrome, Lennox-Gastaut syndrome Longboard Pharmaceuticals Completed No outcome recorded
Phase 21 trial
Phase 2 NCT05626634 Nov 2022 → Dec 2024 Dravet syndrome, Lennox-Gastaut syndrome Longboard Pharmaceuticals Completed No outcome recorded
Phase 33 trials
Phase 3 NCT06908226 Feb 2025 → Nov 2027 expected developmental and epileptic encephalopathy Longboard Pharmaceuticals Enrolling by invitation No outcome recorded
Phase 3 NCT06719141 Nov 2024 → Oct 2026 expected developmental and epileptic encephalopathy Longboard Pharmaceuticals Active not recruiting No outcome recorded
Phase 3 NCT06660394 Sep 2024 → Aug 2026 overdue Dravet syndrome Longboard Pharmaceuticals Recruiting No outcome recorded
Phase not stated1 trial
— NCT06149663 — Dravet syndrome, Lennox-Gastaut syndrome Longboard Pharmaceuticals Available No outcome recorded

News releases announcing trial results or a regulatory action · 5

DateIssuerRelease
2025-12-06 H. Lundbeck A/S Results Lundbeck announces positive Phase 2 long-term data for bexicaserin in rare childhood-onset epilepsies, at American Epilepsy Society (AES) Annual Meeting lundbeck.com ↗
2025-12-02 H. Lundbeck A/S Results Lundbeck to present comprehensive new bexicaserin dataset in patients with rare childhood-onset epilepsies, at American Epilepsy Society (AES) Annual Meeting lundbeck.com ↗
The comprehensive dataset includes a recent post-hoc analysis from Phase 1b/2a PACIFIC trial and Open-Label Extension (OLE) indicating patients with DEEs experienced an early response to bexicaserin which was sustained over the long-term.
2025-08-25 H. Lundbeck A/S Results Lundbeck to present new data on bexicaserin at upcoming congress, highlighting long-term impact on seizure frequency in patients with rare epilepsy lundbeck.com ↗
The full results of the open label extension (OLE) of the Phase 1b/2a PACIFIC trial investigating bexicaserin for the treatment of patients with Developmental and Epileptic Encephalopathies (DEEs), will be presented for the first time at the International Epilepsy Annual Congress1
2025-04-04 H. Lundbeck A/S Results Lundbeck to present positive pipeline data at American Academy of Neurology (AAN) Annual Meeting lundbeck.com ↗
H. Lundbeck A/S (Lundbeck) will present positive interim results from the open-label extension of the PACIFIC trial investigating bexicaserin, in addition to new analyses from clinical trials and real-world data with eptinezumab.
2025-01-30 H. Lundbeck A/S Results Lundbeck announces positive results from 12-month Open-Label Extension (OLE) of the PACIFIC trial evaluating bexicaserin in participants with Developmental and Epileptic Encephalopathies lundbeck.com ↗
Bexicaserin achieved an overall median seizure reduction of 59.3 percent in countable motor seizures over a 12-month open-label extension (OLE) treatment period.

Evidence & citations 6 cited values

Every value below carries the sentence it was read from. 7 sources stand behind the page.

FieldValueCited text
Known as bexicaserin “LP352, bexicaserin” NCT05626634 ↗
Known as Bexicaserina ChEMBL registry synonym — accepted as the source's own label CHEMBL5314507 ↗
Known as Bexicaserine ChEMBL registry synonym — accepted as the source's own label CHEMBL5314507 ↗
Known as LP352 ClinicalTrials.gov intervention name — accepted as the source's own label NCT05364021 ↗
5

NCT06719141 ↗

NCT06660394 ↗

NCT06149663 ↗

NCT06908226 ↗

NCT05626634 ↗

Modality Small molecule — CHEMBL5314507 ↗
Route Oral “orally” NCT05364021 ↗