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Clinical pharmacology study of brexpiprazole (OPC-34712) once-weekly (QW) formulation for schizophrenia

A multi-center, open-label clinical pharmacology study for comparative investigation of the pharmacokinetics, tolerability, and safety of three types of brexpiprazole (OPC-34712) once-weekly (QW) formulation administered as single oral doses in patients with schizophrenia

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080223873
Enrollment
36
Registered
2018-04-13
Start date
2018-05-28
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

Schizophrenia

Interventions

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1)Patients with a diagnosis of schizophrenia based on the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) 2)Patients capable of staying at the trial site from the day before investigational medicinal product (IMP) administration to the 8th day following IMP administration in both Period 1 and Period 2 3)Patients with a body mass index [BMI = body weight (kg)/height (m)2] of 18.5 or higher and lower than 35.0 4)Persons who provide written informed consent before commencement of any trial-related procedures and whom the investigator or subinvestigator judges to be capable of following all the conditions of this trial

Exclusion criteria

Exclusion criteria: 1)Patients with a diagnosis of a concurrent mental disorder besides schizophrenia (schizoaffective disorder, major depressive disorder, bipolar I disorder, bipolar II disorder, general anxiety disorder, obsessive-compulsive disorder, post-traumatic stress disorder, dementia or mild neurocognitive disorder, personality disorder, etc) based on the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) (However, this exclusion does not apply to caffeine- or tobacco-related disorders) 2)Patients who fail to meet the specified requisite washout periods for the prohibited concomitant drugs and foods before commencement of IMP administration, or patients who are anticipated to take any of these drugs or foods during the study period 3)Patients who have previously undergone gastrointestinal surgery that could affect pharmacokinetic evaluations 4)Patients who have received electro-convulsive therapy within 60 days before commencement of IMP administration 5)Patients with clinically problematic disorders of the nervous system, liver, kidneys, metabolic system, blood, immune system, cardiovascular system, lungs, or digestive system (However, such patients may be included if the condition is mild or well-controlled and is considered to not affect safety or pharmacokinetic evaluations.)

Design outcomes

Primary

MeasureTime frame
pharmacokinetics (For all cohorts) Cmax, and AUC of brexpiprazole for each of the QW formulations

Secondary

MeasureTime frame
safety Adverse Events

Countries

Japan

Outcome results

None listed

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