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A Study of Brexpiprazole in Patients With Major Depressive Disorder

A multi-center, randomized, double-blind, placebo-controlled, parallel group-comparison trial to assess the efficacy and safety of brexpiprazole as adjunctive therapy in patients with major depressive disorder

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080223986
Enrollment
720
Registered
2018-07-25
Start date
2018-07-30
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Major depressive disorder

Interventions

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Outpatients, or inpatients at the time of informed consent whose treatment status can be successfully shifted to outpatient status before enrollment in the antidepressant treatment period 2) Male and female patients 20 - 64 years of age (at the time of informed consent) 3) Patients who have a level of comprehension sufficient to allow them to give written informed consent to all of the observation/examination/evaluation items specified in the protocol, and who can understand the contents of the trial 4) Patients with a DSM-5 classification-based diagnosis of "major depressive disorder, single episode" or "major depressive disorder, recurrent episode," and whose current episode has persisted for at least 8 weeks

Exclusion criteria

Exclusion criteria: 1) Women who are pregnant or breastfeeding or who have positive pregnancy test (urine) results at screening 2) Sexually active male subjects or sexually active female subjects of childbearing potential, who will not agree to practice 2 different methods of birth control or to remain abstinent during the trial and for 30 days after the final IMP administration. For birth control, 2 of the following methods must be used: vasectomy, tubal ligation, vaginal diaphragm, intra-uterine contraceptive device (IUD), oral contraceptives, or condom with spermicide. 5) Patients with a treatment history showing that all antidepressants (including those not used for the current major depressive episode) cannot be tolerated 6) Patients with a history of electroconvulsive therapy 7) Patients with a diagnosis of any of the following diseases according to DSM-5 a) Neurocognitive disorders b) Schizophrenia spectrum and other psychotic disorders c) Bipolar and related disorders d) Feeding and eating disorders e) Obsessive-compulsive disorder f) Panic disorder g) Posttraumatic stress disorder

Design outcomes

Primary

MeasureTime frame
efficacy Montgomery Asberg Depression Rating Scale (MADRS)

Secondary

MeasureTime frame
efficacy Clinical Global Impression -Global Improvement (CGI-I), Clinical Global Impression -Severity of Illness (CGI-S), Hamilton Depression Rating Scale (HAM-D), Sheehan Disability Scale (SDS), The Montgomery Asberg Depression Rating Scale Self-assessment (MADRS-S)

Countries

Japan

Contacts

Public ContactDrug Information Center

Otsuka Pharmaceutical Co., LTD.

opc_ctr@otsuka.jp+81-3-6361-7314

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026