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A Cariprazine Study in the Prevention of Relapse in Bipolar I Disorder Patients Whose Current Episode is Manic or Depressive, With or Without Mixed Features

A Double-blind, Placebo-controlled, Randomized Withdrawal, Multicenter Clinical Trial Evaluating the Efficacy, Safety and Tolerability of Cariprazine in a Dose-reduction Paradigm in the Prevention of Relapse in Bipolar I Disorder Patients Whose Current Episode is Manic or Depressive, With or Without Mixed Features

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03573297
Enrollment
901
Registered
2018-06-29
Start date
2018-06-15
Completion date
2022-09-05
Last updated
2023-09-28

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

Conditions

Bipolar I Disorder, Depression, Mania

Brief summary

1\) To evaluate the efficacy and safety of cariprazine at a target dose of 3.0 mg/day compared with placebo in prevention of relapse in patients with bipolar I disorder whose current episode (i.e. index episode) is manic or depressive, with or without mixed features; 2) To evaluate the efficacy and safety of cariprazine at a target dose of 1.5 mg/day compared with placebo in prevention of relapse in patients with bipolar I disorder whose current episode (i.e. index episode) is manic or depressive, with or without mixed features who were initially stabilized on a target dose of 3.0 mg/day

Interventions

DRUGCariprazine

Cariprazine capsules, oral administration, once daily

DRUGPlacebo

Matching placebo capsules, oral administration, once daily

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Currently meet the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria for bipolar I disorder, and at least one of the following two criteria: * Current episode manic, with or without mixed features, having a total Young Mania Rating Scale (YMRS) total score ≥ 20 and a score of at least 4 on 2 YMRS items (irritability, speech, content, or disruptive/aggressive behavior); * OR current episode depressive, with or without mixed features, having a Montgomery-Asberg Depression Rating Scale (MADRS) total score ≥ 23 and a score of at least 3 on 2 MADRS items (apparent sadness, reported sadness, inner tension or inability to feel).

Exclusion criteria

* Four or more episodes of a mood disturbance within the 12 months before Visit 1; * Diagnosis of another psychiatric disorder other than bipolar disorder with the exception of specific phobias.

Design outcomes

Primary

MeasureTime frameDescription
Time to First Relapse of Any Mood Episode During the Double-Blind Treatment PeriodFrom Week 16 to Week 55Relapse was defined as the occurrence of any 1 of the following: * Young Mania Rating Score (YMRS) total score ≥ 17 (range 0-60; higher score indicates a worse outcome); * Montgomery Asberg Depression Rating Scale; (MADRS) total score ≥ 20 (range 0-60; higher score indicates more depressive symptoms); * Clinical Global Impression-Improvement scale (CGI-S) ≥ 4 (range from 1 \[normal, not at all ill\] to 7 \[extremely ill\]); * Initiation of additional psychiatric medication; * Psychiatric hospitalization; * Exacerbation of illness as judged by clinical impression of the Investigator. Time to first relapse (days) was calculated as the date of the first relapse - the date of randomization + 1. Participants who did not meet the relapse criteria were considered censored at the time of completion or discontinuation from the Double-Blind Treatment Period (DBTP) of the study. Percentiles (95% Confidence Intervals \[CI\]) are based on Kaplan-Meier estimates.

Countries

Bulgaria, Malaysia, Poland, Puerto Rico, Russia, Serbia, South Korea, Taiwan, Thailand, Ukraine, United States

Participant flow

Pre-assignment details

A total of 901 participants were enrolled; 5 participants did not enter the open label treatment period.

Participants by arm

ArmCount
Open Label Treatment Period
Participants started on cariprazine 1.5 mg QD, with a target dose of 3.0 mg QD, for up to 16 weeks.
896
Total896

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Double-Blind Treatment PeriodAdverse Event0151
Double-Blind Treatment PeriodLack of Efficacy0100
Double-Blind Treatment PeriodLost to Follow-up0449
Double-Blind Treatment PeriodNon-Compliance With Study Drug0044
Double-Blind Treatment PeriodOther, Not Specified0586
Double-Blind Treatment PeriodProtocol Violation0384
Double-Blind Treatment PeriodRelapse Event during Double-blind Treatment Period0292526
Double-Blind Treatment PeriodWithdrawal by Subject0231114
Open Label Treatment PeriodAdverse Event67000
Open Label Treatment PeriodFailure to Meet Randomization Criteria143000
Open Label Treatment PeriodLack of Efficacy35000
Open Label Treatment PeriodLost to Follow-up55000
Open Label Treatment PeriodNon-Compliance With Study Drug25000
Open Label Treatment PeriodOther, Not Specified7000
Open Label Treatment PeriodPregnancy1000
Open Label Treatment PeriodProtocol Violation17000
Open Label Treatment PeriodStudy Terminated by Sponsor2000
Open Label Treatment PeriodWithdrawal by Subject104000

Baseline characteristics

CharacteristicOpen Label Treatment Period
Age, Customized
< 45 years
539 Participants
Age, Customized
≥ 45 years
357 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
89 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
806 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
Race (NIH/OMB)
Asian
32 Participants
Race (NIH/OMB)
Black or African American
258 Participants
Race (NIH/OMB)
More than one race
10 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
591 Participants
Sex: Female, Male
Female
542 Participants
Sex: Female, Male
Male
354 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
1 / 9011 / 1450 / 1470 / 148
other
Total, other adverse events
256 / 89627 / 14534 / 14434 / 147
serious
Total, serious adverse events
19 / 8965 / 1457 / 1443 / 147

Outcome results

Primary

Time to First Relapse of Any Mood Episode During the Double-Blind Treatment Period

Relapse was defined as the occurrence of any 1 of the following: * Young Mania Rating Score (YMRS) total score ≥ 17 (range 0-60; higher score indicates a worse outcome); * Montgomery Asberg Depression Rating Scale; (MADRS) total score ≥ 20 (range 0-60; higher score indicates more depressive symptoms); * Clinical Global Impression-Improvement scale (CGI-S) ≥ 4 (range from 1 \[normal, not at all ill\] to 7 \[extremely ill\]); * Initiation of additional psychiatric medication; * Psychiatric hospitalization; * Exacerbation of illness as judged by clinical impression of the Investigator. Time to first relapse (days) was calculated as the date of the first relapse - the date of randomization + 1. Participants who did not meet the relapse criteria were considered censored at the time of completion or discontinuation from the Double-Blind Treatment Period (DBTP) of the study. Percentiles (95% Confidence Intervals \[CI\]) are based on Kaplan-Meier estimates.

Time frame: From Week 16 to Week 55

Population: Double-Blind Intent-to-Treat Population: All participants who took at least 1 dose of DB IP and had at least 1 post-randomization assessment of the YMRS, MADRS or CGI-S scores or relapsed during the 39-week DBTP of the study.

ArmMeasureGroupValue (MEDIAN)
Double-Blind Placebo QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period50% percentileNA days
Double-Blind Placebo QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period25% percentileNA days
Double-Blind Placebo QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period75% percentileNA days
Double-Blind Cariprazine 1.5 mg QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period50% percentileNA days
Double-Blind Cariprazine 1.5 mg QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period25% percentileNA days
Double-Blind Cariprazine 1.5 mg QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period75% percentileNA days
Double-Blind Cariprazine 3.0 mg QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period25% percentileNA days
Double-Blind Cariprazine 3.0 mg QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period75% percentileNA days
Double-Blind Cariprazine 3.0 mg QDTime to First Relapse of Any Mood Episode During the Double-Blind Treatment Period50% percentileNA days
p-value: 0.574595% CI: [0.48, 1.43]Log Rank
p-value: 0.630895% CI: [0.52, 1.51]Log Rank

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