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

NCT ID: NCT07172516

Last Updated: 2025-12-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

400 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-08

Study Completion Date

2028-08-31

Brief Summary

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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).

Detailed Description

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Conditions

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Bipolar I Disorder Bipolar II Disorder Bipolar Depression Bipolar Disorder

Keywords

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Bipolar XEN1101 Azetukalner

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Azetukalner

Azetukalner 20 mg

Group Type EXPERIMENTAL

Azetukalner

Intervention Type DRUG

Azetukalner 20 mg taken orally once a day with food (with the evening meal when possible) for 6 weeks

Placebo

Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo taken orally once a day with food (with the evening meal when possible) for 6 weeks

Interventions

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Azetukalner

Azetukalner 20 mg taken orally once a day with food (with the evening meal when possible) for 6 weeks

Intervention Type DRUG

Placebo

Placebo taken orally once a day with food (with the evening meal when possible) for 6 weeks

Intervention Type DRUG

Other Intervention Names

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XEN1101

Eligibility Criteria

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Inclusion Criteria

* Adults ≥18 and ≤74 years of age who experienced their first major depressive episode (MDE) prior to 50 years of age.
* Body Mass Index (BMI) ≥18 kg/m2 and ≤40 kg/m2.
* Meets the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) criteria for bipolar I or II disorder and is currently in a MDE, confirmed using the Mini International Neuropsychiatric Interview (MINI).
* Current MDE must has a duration of ≥4 weeks and ≤12 months.

Exclusion Criteria

* Participant has any type of major depressive disorder (MDD) diagnosis, including MDD with psychotic features, MDD with catatonia, MDD with seasonal pattern, or postpartum depression.
* Participant has any nonbipolar psychiatric diagnosis.
* Participant has a substance use disorder (excluding tobacco) within the 6 months prior to screening visit.
* Participant has a symptomatic eating disorder within the 12 months prior to screening visit.
* Participant has a Young Mania Rating Scale (YMRS) score \>12 points at screening visit or randomization.
* Participant has been hospitalized for mania within the 30 days prior to screening visit.
* Participant is considered treatment-resistant in the current bipolar depressive episode, defined as having treatment resistance (no remission) to ≥2 different medications approved by the regional regulatory authority at an adequate dose (per regulatory approved label) and for an adequate duration (at least 6 weeks).
* Participant has had an active suicidal plan/intent within the 6 months prior to screening, presence of suicidal behavior in the last 12 months.
* Participant has self-injurious behavior without intent to die in the 12 months prior to screening.
* Participant has used antidepressants, mood stabilizers, anticonvulsants, antipsychotics, or other prohibited medications within the 1 week or within a period less than 5 times the drug's half-life, whichever is longer prior to randomization.
* Participants with medical conditions that may interfere with the purpose or conduct of the study.
* Participant is pregnant, breastfeeding, or planning to become pregnant.
Minimum Eligible Age

18 Years

Maximum Eligible Age

74 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Xenon Pharmaceuticals Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Woodland International Research Group

Little Rock, Arkansas, United States

Site Status RECRUITING

Woodland Research Northwest

Rogers, Arkansas, United States

Site Status RECRUITING

Clinical Innovations Inc

Bellflower, California, United States

Site Status RECRUITING

ProScience Research Group

Culver City, California, United States

Site Status RECRUITING

ATP Clinical Research

Orange, California, United States

Site Status RECRUITING

NRC Research Institute

Orange, California, United States

Site Status RECRUITING

Clinical Innovations Inc

Riverside, California, United States

Site Status RECRUITING

PharmaSouth Research, LLC

Coral Gables, Florida, United States

Site Status RECRUITING

Clinical Neuroscience Solutions, Inc.

Jacksonville, Florida, United States

Site Status RECRUITING

Clinical Neuroscience Solutions, Inc

Orlando, Florida, United States

Site Status RECRUITING

Synexus Clinical Research, Inc.

Atlanta, Georgia, United States

Site Status RECRUITING

Atlanta Center for Medical Research

Atlanta, Georgia, United States

Site Status RECRUITING

CenExel iResearch

Decatur, Georgia, United States

Site Status RECRUITING

Denali Health Atlanta, LLC

Stone Mountain, Georgia, United States

Site Status RECRUITING

Center For Emotional Fitness

Cherry Hill, New Jersey, United States

Site Status RECRUITING

Neurobehavioral Research Inc

Cedarhurst, New York, United States

Site Status RECRUITING

Clinical Neuroscience Solutions, Inc

Memphis, Tennessee, United States

Site Status RECRUITING

Grayline Research Center

Wichita Falls, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Xenon Medical Affairs

Role: CONTACT

Phone: 1-604-484-3300

Email: [email protected]

Other Identifiers

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XPF-010-B301

Identifier Type: -

Identifier Source: org_study_id