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Study of Oral ABBV-932 to Assess Adverse Events and Change in Disease Activity in Adult Participants With Bipolar I or II Disorder

Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Fixed-dose Study to Evaluate the Efficacy, Safety, and Tolerability of ABBV-932 in Subjects With Depressive Episodes Associated With Bipolar I or II Disorder

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06605599
Acronym
CANTO
Enrollment
161
Registered
2024-09-20
Start date
2024-10-15
Completion date
2025-12-10
Last updated
2026-01-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bipolar I Disorder, Bipolar II Disorder

Keywords

Bipolar I Disorder, Bipolar II Disorder, Bipolar Disorder, ABBV-932

Brief summary

Bipolar disorder is a severe chronic mood disorder that affects up to 4% of the adult population in the United States. This study will assess how safe and effective ABBV-932 is in treating participants with bipolar I or II disorder. ABBV-932 is an investigational drug being developed for the treatment of depressive episodes in adult participants with bipolar I or II disorder. Study doctors put participants in 1 of 4 groups, called treatment arms. There is a 1 in 4 chance that a participant will be assigned to placebo. Around 160 adult participants with bipolar I or II disorder will be enrolled in approximately 40 sites worldwide. Participants will receive oral capsules of ABBV-932 or matching placebo once daily for 6 weeks. The treatment period will be followed by a safety follow-up (SFU) period for 4 weeks. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular weekly visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Interventions

Oral Capsule

Oral Capsule

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Meet Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) criteria for bipolar I or II disorder without psychotic features based on the Mini International Neuropsychiatric Interview (MINI), with a current depressive episode of at least 4 weeks and not exceeding 12 months. * Have a minimum score of 20 on the 17-item Hamilton Depression Rating Scale (HAMD-17). * Have a minimum score of 2 on Item 1 of the HAMD-17 at screening.

Exclusion criteria

* Positive urine drug screen (UDS) result at screening. * Treated with any investigational drug within 4 weeks or 5 half-lives of the drug (whichever is longer) prior to the first dose of study drug, is currently enrolled in another clinical study, or was previously enrolled in this study. * Current use of any antipsychotic, antidepressant, anticonvulsant, mood stabilizer, herb, or over-the-counter medication with psychoactive potential within 1 week or 5 half-lives of the medication (whichever is longer). * Prior exposure to ABBV-932 within 90 days prior to baseline.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Montgomery-Åsberg Depression Rating Scale (MADRS) Total ScoreUp to Week 6The MADRS is a 10-item, clinician-rated scale that evaluates the participant's depressive symptomatology. Each item is scored on a 7-point scale with a score of 0 reflecting no symptoms and a score of 6 reflecting symptoms of maximum severity.

Secondary

MeasureTime frameDescription
Change From Baseline in Clinical Global Impression-Severity - Bipolar Disorder (CGI-S-BP)Up to Week 6CGI-S-BP is a single-item clinician-reported measure of severity of bipolar disorder. Clinicians are asked to rate the severity of mania, depression, and overall bipolar illness. Response options range from 1 to 7: 1 = normal, not ill through 7 = very severely ill.
Change From Baseline in Functioning Assessment Short Test (FAST) Total ScoreUp to Week 6FAST is a clinician-reported outcome measure designed to assess the main functioning problems experienced by psychiatric participants, particularly bipolar participants. The FAST includes 24 items in 6 domains of functioning. Clinicians are asked to respond on a 4-point Likert scale ranging from 0 to 3 (0 = no difficulty and 3 = severe difficulty). Higher scores indicate greater difficulties in functioning.
Change From Baseline in Hamilton Anxiety Rating Scale (HAM-A) Total ScoreUp to Week 6HAM-A is a 14-item, clinician-reported measure used to quantify and categorize the participant's anxiety over the past week. Items are rated on a 5-point Likert rating scale of absent (0; if symptoms are absent, insignificant, or clearly due to causes other than anxiety) through very severe (4; if symptom is incapacitating). The HAM-A total score ranges from 0 to 56, with higher scores indicating greater anxiety severity.

Countries

Japan, Puerto Rico, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026