A Randomized Study of Azetukalner Versus Placebo in Major... | NCT06775379

Status Module

Label	Type	Description	Intervention Names
Azetukalner	Experimental	Azetukalner 20 mg	Drug: Azetukalner
Placebo	Placebo Comparator	Placebo	Drug: Placebo

Name	Type	Description	Arm Group Labels	Other Names
Azetukalner	Drug	Azetukalner 20 mg taken orally once a day with food (with the evening meal when possible) for 6 weeks	Azetukalner

Outcomes Module

Primary Outcomes

Measure	Description	Time Frame
Change from baseline in the Hamilton Depression Rating Scale, 17-item (HAMD-17) score at Week 6	The HAMD-17 consists of 17 items that are used to rate the severity of depression symptoms. Each item is scored in a range of 0 to 2 points or 0 to 4 points, with higher scores indicating a greater degree of depression. The score for each item is summed to compute a total score, which ranges from 0 to 52 points.	Baseline to Week 6

Secondary Outcomes

Measure	Description	Time Frame
Change from baseline in the Snaith-Hamilton Pleasure Scale (SHAPS) score at Week 6	The SHAPS is a 14-item self-report questionnaire used to assess anhedonia. Each item on the SHAPS is worded so that higher scores indicate greater anhedonia. A total score can be derived by summing the responses to each item. Items answered with "strongly agree" are assigned a score of 1, while "strongly disagree" responses are assigned a score of 4 points. Total scores on the SHAPS can range from 14 to 56 points, with higher scores corresponding to higher levels of anhedonia.

Eligibility Module

Eligibility Criteria

Key Inclusion Criteria:

Adults ≥18 and ≤74 years of age and experienced their first major depressive episode (MDE) prior to 50 years of age
Body Mass Index (BMI) ≤40 kg/m2
Meets the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition Text Revised (DSM-5-TR) criteria for current major depressive disorder and is currently in an MDE, confirmed using the Mini International Neuropsychiatric Interview (MINI)
Participant's current MDE has a duration of ≥6 weeks and ≤24 months.

Key Exclusion Criteria:

Participant has a primary diagnosis of a mood disorder other than MDD.
Participant has a history of any of the following: MDD with psychotic or catatonic features; MDD with mixed features; Bipolar I or II disorder; Obsessive-compulsive disorder; Schizophrenia, primary thought disorder, or other psychotic disorder.
Participant has a current diagnosis of any of the following: MDD with seasonal pattern; Depression with peripartum or perimenopausal onset; Post traumatic stress disorder; Antisocial or borderline personality disorder (or presence of clinically significant borderline personality traits); Panic disorder and/or agoraphobia; ADHD treated with a psychostimulant, diagnosed during the current MDE, or with unstable symptoms, as judged by the investigator.
Participant has a substance (excluding tobacco) or alcohol use disorder within the 12 months prior to screening.
Participant has had an active suicidal plan/intent within the 6 months prior to screening, presence of suicidal behavior in the last 2 years, or >1 suicide attempt >24 years of age.
Participant has a history of non-suicidal self-harm behavior in the 12 months prior to screening.
Participant has used antidepressants or other prohibited medications (including benzodiazepines), within the 2 weeks (4 weeks for fluoxetine) or within a period less than 5 times the drug's half-life, whichever is longer, prior to randomization.
Participant has a history of non-response to ≥2 antidepressant drugs of adequate dose and duration in the current MDE as determined by the Antidepressant Treatment Response Questionnaire (ATRQ).
Participants with medical conditions that may interfere with the purpose or conduct of the study
Participant is pregnant, breastfeeding, or planning to become pregnant.

ID	Term
D003865	Depressive Disorder, Major
D003863	Depression

ID	Term
D003866	Depressive Disorder
D019964	Mood Disorders
D001523	Mental Disorders
D001526	Behavioral Symptoms
D001519	Behavior