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A Trial to Assess Brexpiprazole Versus Placebo for the Treatment of Acute Manic Episodes, Associated With Bipolar I Disorder

Phase 3
Completed
Conditions
Bipolar I Disorder
Manic Episode
Interventions
Drug: Placebo
Registration Number
NCT03257865
Lead Sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Brief Summary

To demonstrate the efficacy of brexpiprazole for the acute treatment of manic episodes, with or without mixed features, in participants with a diagnosis of bipolar I disorder.

Detailed Description

A multicenter, randomized, double-blind trial of brexpiprazole versus placebo for the acute treatment of manic episodes, with or without mixed features, associated with bipolar I disorder. This study also demonstrated the safety and tolerability of brexpiprazole in the study population of males and females aged 18 to 65 years (inclusive, at time of consent).

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
333
Inclusion Criteria
  • Male or female participants, ages 18 to 65 years, inclusive, at the time of informed consent.
  • Participants willing to discontinue all prohibited medications to meet protocol-required washouts prior to and during the trial period.
  • Participants with a Diagnostic & Statistical Manual on Mental Disorders, 5th Edition (DSM-5) diagnosis of bipolar I disorder displaying an acute manic episode with or without mixed features requiring hospitalization. Diagnosis confirmed by the MINI International Neuropsychiatric Interview (MINI) and a history of at least one previous manic episode with or without mixed features with manic symptoms of sufficient severity to require one of the following interventions: hospitalization or treatment with a mood stabilizer, or treatment with an antipsychotic agent. "Require" was defined as an intervention that occurred rather than one that was recommended.
  • Young-mania rating scale (YMRS) score of ≥ 24 at screening and baseline
Exclusion Criteria
  • Sexually active male or women of childbearing potential (WOCBP) who did not agree to practice 2 different methods of birth control or remain abstinent during the trial and for 30 days after the last dose of investigational medicinal product (IMP).
  • Females who were breastfeeding and/or who had a positive pregnancy test result prior to receiving trial medication.
  • Participants considered unresponsive to clozapine or who were only responsive to clozapine.
  • Participants with a history of DSM-5 diagnosis other than bipolar I disorder, including schizophrenia, schizoaffective disorder, major depressive disorder, attention-deficit/hyperactivity disorder, delirium, dementia, amnestic, or other cognitive disorders. Also, participants with borderline, paranoid, histrionic, schizotypal, schizoid, or antisocial personality disorder. All other current diagnoses must have been discussed with the medical monitor.
  • Participants whose current manic episode had lasted for more than 4 weeks overall, or who had required hospitalization > 21 days for the current acute episode at the time of the screening visit, excluding hospitalization for psychosocial reasons.
  • Participant with manic symptoms better accounted for by another general medical condition or direct physiological effect of substance (for example, medications).
  • Participants who have had electroconvulsive treatment within the past 2 months.
  • Participants with a positive drug screen for cocaine or other illicit drugs.
  • Abnormal laboratory test results, vital signs or electrocardiogram findings, unless, based on investigator's judgment, the findings are not medically significant and would not impact the safety of the participant or the interpretation of the trial results.
  • Rapid cyclers with more than 6 episodes in the previous year.
  • Participants with hypothyroidism or hyperthyroidism (unless condition has been stabilized with medications for at least the past 90 days) or an abnormal result for free thyroxine at screening.
  • Participants with uncontrolled hypertension or symptomatic hypotension or orthostatic hypotension.
  • Participants with epilepsy or history of seizures.
  • Participants who participated in a clinical trial within the last 60 days or who participated in more than 2 clinical trials within the past year.
  • Use of psychotropic medications (other than benzodiazepines) within 7 days of the baseline YMRS.
  • Participants who currently had clinically significant neurological, hepatic, renal, metabolic, hematological, immunological, cardiovascular, pulmonary, or gastrointestinal disorders
  • Participants who received brexpiprazole in any prior clinical trial or currently taking commercially available brexpiprazole (Rexulti).

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
BrexpiprazoleBrexpiprazoleParticipants received a starting dose of 2 milligrams (mg)/day brexpiprazole from Days 1 to 3, followed by titration to 3 mg/day on Day 4. Participants may have been titrated (or re-titrated) to a higher dose of brexpiprazole, up to a maximum of 4 mg/day, based on treatment response and at the investigator's discretion anytime at Day 7 or thereafter. Participants who were unable to tolerate their current dose could have been titrated down to a minimum of 2 mg/day any time after Day 4.
PlaceboPlaceboMatching placebo was administered in the same way as brexpiprazole to maintain the blind
Primary Outcome Measures
NameTimeMethod
Change From Baseline In Young-Mania Rating Scale (YMRS) Score At Week 3Baseline, Week 3

The YMRS was utilized to assess a participant's level of manic symptoms. It consists of 11 items: 1) elevated mood, 2) increased motor activity-energy, 3) sexual interest, 4) sleep, 5) irritability, 6) speech (rate and amount), 7) language-thought disorder, 8) content, 9) disruptive-aggressive behavior, 10) appearance, and 11) insight. Seven items are rated on a 0- to 4-scale, while four items (Items 5, 6, 8, and 9) are rated on a 0- to 8-scale with 0, 2, 4, 6, and 8 being the possible scores (twice the weight of the other items). For all items, 0 is the "best" rating and the highest score (4 or 8) is the 'worst' rating. The YMRS total score is the sum of ratings for all 11 items; therefore, possible total scores range from 0 to 60, with higher scores signifying more severe manic symptoms. Comparison between treatment groups was carried out using mixed-effect model repeated measure (MRMM).

Secondary Outcome Measures
NameTimeMethod
Change From Baseline In Clinical Global Impression-Bipolar (CGI-BP) Severity Score In Mania At Week 3Baseline, Week 3

The CGI-BP scale refers to the global impression of the participant with respect to bipolar disorder. The scale rates the participant's severity of illness (CGI-BP severity of illness: mania, depression, and overall bipolar illness) based on a 7-point scale: 1 = normal, not at all ill, 2 = minimally ill, 3 = mildly ill, 4 = moderately ill, 5 = markedly ill, 6 = severely ill, 7 = very severely ill.

Trial Locations

Locations (37)

CiTrials

🇺🇸

Santa Ana, California, United States

Research Centers of America LLC

🇺🇸

Hollywood, Florida, United States

CNRI-San Diego

🇺🇸

San Diego, California, United States

Optimus U Corporation

🇺🇸

Miami, Florida, United States

Clinical Hospital Centre Rijeka

🇭🇷

Rijeka, Croatia

Kyiv Regional Medical Incorporation "Psychiatry", Center for Novel Treatment and Rehabilitation of Psychotic disorders

🇺🇦

Kyiv, Ukraine

CNS Research Science Inc.

🇺🇸

Cerritos, California, United States

Neuropsychiatric Research & Associates, LTD

🇺🇸

Winfield, Illinois, United States

Louisiana Clinical Research

🇺🇸

Shreveport, Louisiana, United States

South Florida Research Phase I-IV

🇺🇸

Miami Springs, Florida, United States

Communal Institution "Dnipropetrovsk Regional Clinical Hospital named after I.I. Mechnikov

🇺🇦

Dnipro, Ukraine

St Louis Clinical Trials LLC

🇺🇸

Saint Louis, Missouri, United States

Arch Clinical Trials, LLC

🇺🇸

Saint Louis, Missouri, United States

iResearch Atlanta, LLC

🇺🇸

Decatur, Georgia, United States

Uptown Research Institute LLC

🇺🇸

Chicago, Illinois, United States

O.F. Maltsev Poltava Regional Psychiatric Hospital

🇺🇦

Poltava, Ukraine

Atria Clinical Research

🇺🇸

Little Rock, Arkansas, United States

Woodland International Research Group, LLC

🇺🇸

Little Rock, Arkansas, United States

Artemis Institute for Clinical Research

🇺🇸

San Diego, California, United States

Apostle Clinical Trials

🇺🇸

Long Beach, California, United States

Collaborative Neuroscience Network, LLC

🇺🇸

Torrance, California, United States

Shreenath Clinical Service

🇺🇸

Yorba Linda, California, United States

CNS Research Science, Inc.

🇺🇸

Jamaica, New York, United States

New Hope Clinical Research

🇺🇸

Charlotte, North Carolina, United States

InSite Clinical Research LLC

🇺🇸

DeSoto, Texas, United States

SI ""Institute of Neurology, Psychiatry and Narcology of National Academy of Medical Sciences of Ukraine

🇺🇦

Kharkiv, Ukraine

Communal Establishment "Acad. O.I. Iushchenko Vinnytsia Regional Psychoneurologic Hospital"

🇺🇦

Vinnytsia, Ukraine

Galiz Research

🇺🇸

Hialeah, Florida, United States

Pillar Clinical Research, LLC

🇺🇸

Richardson, Texas, United States

Hassman Research Institute

🇺🇸

Berlin, New Jersey, United States

University of Cincinnati Department of Psychiatry and Behavorial Science

🇺🇸

Cincinnati, Ohio, United States

Meridien Research

🇺🇸

Orlando, Florida, United States

Communal Establishment "Kherson Regional Psychiatric Hospital" of Kherson Regional Council

🇺🇦

Kherson, Ukraine

Communal Establishment "Odesa Regional Psychiatric Hospital #2

🇺🇦

Oleksandrivka, Ukraine

Communal Institution of Lviv Regional Council "Lviv Regional Clinical Psychiatric Hospital", Department #20

🇺🇦

Lviv, Ukraine

Communal Institution of Lviv Regional Council "Lviv Regional Clinical Psychiatric Hospital", Department #25

🇺🇦

Lviv, Ukraine

Ternopil Regional Municipal Clinical Psychoneurolgical Hospital

🇺🇦

Ternopil', Ukraine

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