Clinical trials

5

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 Evaluate XEN1101 as Adjunctive Therapy in Primary Generalized Tonic-Clonic Seizures

This is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety, and tolerability of XEN1101 administered as adjunctive treatment in primary generalized tonic-clonic seizures (PGTCS).

Participants needed: 160
Trial details
Phase: Phase 3Age: 12+Biological sex: AllType: InterventionalSponsor: Xenon Pharmaceuticals Inc.Updated: Jun 3, 2026Locations: 138
Eligibility criteria

Subject is properly informed of the nature and risks of the study and gives info... [+5]

Subject has had status epilepticus within the 12 months prior to Visit 1. [+11]

Status: Recruiting

A Randomized Study of Azetukalner Versus Placebo in Depressive Episodes Associated With Bipolar I or II Disorder (Bipolar Depression)

X-CEED is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of azetukalner in adult participants diagnosed with bipolar I or II disorder who are currently in a depressive episode (bipolar depression).

Participants needed: 400
Trial details
Phase: Phase 3Age: 18-74Biological sex: AllType: InterventionalSponsor: Xenon Pharmaceuticals Inc.Updated: Jun 3, 2026Locations: 28
Eligibility criteria

Adults ≥18 and ≤74 years of age who experienced their first major depressive epi... [+3]

Participant has any type of major depressive disorder (MDD) diagnosis, including... [+11]

Status: Recruiting

A Randomized Study of Azetukalner Versus Placebo in Major Depressive Disorder (X-NOVA3)

X-NOVA3 is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety, and tolerability of azetukalner as a monotherapy in adult participants diagnosed with Major Depressive Disorder (MDD)

Participants needed: 450
Trial details
Phase: Phase 3Age: 18-74Biological sex: AllType: InterventionalSponsor: Xenon Pharmaceuticals Inc.Updated: Jun 2, 2026Locations: 44
Eligibility criteria

Adults ≥18 and ≤74 years of age and experienced their first major depressive epi... [+3]

Participant has a primary diagnosis of a mood disorder other than MDD. [+9]

Status: Recruiting

A Randomized Study of XEN1101 Versus Placebo in Focal-Onset Seizures (X-TOLE3)

The X-TOLE3 Phase 3 clinical trial is a randomized, double-blind, placebo-controlled study that will evaluate the clinical efficacy, safety and tolerability of XEN1101 administered as adjunctive therapy in focal-onset seizures.

Participants needed: 360
Trial details
Phase: Phase 3Age: 18+Biological sex: AllType: InterventionalSponsor: Xenon Pharmaceuticals Inc.Updated: May 14, 2026Locations: 95
Eligibility criteria

Be properly informed of the nature and risks of the study and give informed cons... [+3]

Previously documented electroencephalogram which shows any pattern not consisten... [+5]

Status: Recruiting

A Randomized Study of Azetukalner Versus Placebo in Major Depressive Disorder

X-NOVA2 is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety, and tolerability of azetukalner as a monotherapy in adult participants diagnosed with Major Depressive Disorder (MDD)

Participants needed: 450
Trial details
Phase: Phase 3Age: 18-74Biological sex: AllType: InterventionalSponsor: Xenon Pharmaceuticals Inc.Updated: Oct 22, 2025Locations: 46
Eligibility criteria

Adults ≥18 and ≤74 years of age and experienced their first major depressive epi... [+3]

Participant has a primary diagnosis of a mood disorder other than MDD. [+9]