Skip to content
Study details
Enrolling now

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

Xenon Pharmaceuticals Inc.
NCT IDNCT07076407ClinicalTrials.gov data as of Apr 2026
Phase

Phase 3

Target enrollment

450

Study length

about 2.1 years

Ages

18–74

Locations

35 sites in AL, AR, CA +15

What this study is about

Researchers are testing a treatment called azetukalner versus a placebo for people with major depressive disorder. The trial will last about 753 days and involve around 450 participants.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take Azetukalner
  • 2.Take Placebo

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Standard

How treatment is administered

Treatment Assignment
Randomized & Blinded

You may get a placebo/standard care, and you won't know which.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Endpoints

Primary: Change from baseline in the Hamilton Depression Rating Scale, 17-item (HAMD-17) score at Week 6

Secondary: Change from baseline in the Clinical Global Impression of Severity (CGI-S) score at Week 6, Change from baseline in the Hamilton Depression Rating Scale, 17-item (HAMD-17) score at Week 1, Change from baseline in the Snaith-Hamilton Pleasure Scale (SHAPS) score at Week 6, To assess the safety and tolerability of azetukalner (e.g., adverse events)

Body systems

Psychiatry / Mental Health