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Safety and Efficacy of RGH-188 (Cariprazine) in Bipolar Depression

A Double-blind, Placebo-controlled Study of RGH-188 (Cariprazine) in Bipolar Depression

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00852202
Enrollment
234
Registered
2009-02-26
Start date
2009-06-30
Completion date
2010-06-15
Last updated
2018-08-23

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

Conditions

Bipolar Depression

Keywords

bipolar, depression

Brief summary

The purpose of this study is to evaluate the efficacy, safety, and tolerability of cariprazine in the treatment of outpatients with bipolar depression.

Interventions

DRUGcariprazine

Drug: cariprazine (0.25 - 0.75 mg/day)

DRUGplacebo

placebo capsules, oral administration, once daily dosing

Sponsors

Gedeon Richter Ltd.
CollaboratorINDUSTRY
Forest Laboratories
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

* Men and women, 18-65 years old * Currently meet the DSM-IV-TR criteria for Bipolar I or II Disorder without psychotic features, with a current depressive episode * A verified previous manic, hypomanic, or mixed episode * Score of 20 or higher on the HAMD-17 * Score of 2 or higher on Item 1 of the HAMD

Exclusion criteria

* Score greater than 12 on the Young Mania Rating Scale * Eight or more episodes of a mood disturbance (depression, mania, hypomania, or mixed state) within the 12 months prior to Visit 1 * Principal DSM-IV-TR-based diagnosis of an axis I disorder other than bipolar disorder (a secondary diagnosis of comorbid Generalized Anxiety Disorder, Social Anxiety Disorder, or specific phobias is acceptable)

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS)Baseline to Week 8The patient is rated on a scale from 0-6 on 10 items. Apparent sadness, reported sadness, lassitude, pessimistic thoughts, inner tension, suicidal thoughts, reduced sleep and appetite, concentration difficulties, inability to feel. The overall MADRS score ranges from 0-60, with 0 meaning no symptoms and score of 60 meaning maximum severity.

Secondary

MeasureTime frameDescription
Change in Baseline in Clinical Global Impressions-Improvement ( CGI-I )Baseline to Week 8The patient was rated on a scale from 1 to 7, with 1 indicating the patient was very much improved and 7 indicating that the patient was very much worse.

Countries

United States

Participant flow

Pre-assignment details

233 patients were randomized to receive double-blind treatment, 227 patients received at least 1 dose of double-blind treatment and were included in safety Population

Participants by arm

ArmCount
Placebo
Matching placebo capsules, orally administered for 8 weeks
77
0.25 to 0.75 mg Cariprazine
Cariprazine capsules 0.25 to 0.75 mg was orally administrated once daily for 8 weeks
75
1.5 to 3.0 mg Cariprazine
Cariprazine capsules 1.5 to 3.0 mg was orally administrated once daily for 8 weeks
75
Total227

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event237
Overall StudyLack of Efficacy412
Overall StudyLost to Follow-up556
Overall Studypregnancy,moving away and surgery102
Overall StudyProtocol Violation227
Overall StudyWithdrawal by Subject312

Baseline characteristics

CharacteristicTotalPlacebo0.25 to 0.75 mg Cariprazine1.5 to 3.0 mg Cariprazine
Age, Continuous38.9 Years
STANDARD_DEVIATION 11.2
40.6 Years
STANDARD_DEVIATION 10.7
37.4 Years
STANDARD_DEVIATION 10.7
38.8 Years
STANDARD_DEVIATION 12.1
Age, Customized
< 20
4 Participants1 Participants1 Participants2 Participants
Age, Customized
20, 30
50 Participants11 Participants21 Participants18 Participants
Age, Customized
30, 40
64 Participants24 Participants20 Participants20 Participants
Age, Customized
40, 50
66 Participants23 Participants23 Participants20 Participants
Age, Customized
50, 60
40 Participants17 Participants10 Participants13 Participants
Age, Customized
≥ 60
3 Participants1 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
13 Participants3 Participants4 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
214 Participants74 Participants71 Participants69 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
5 Participants2 Participants2 Participants1 Participants
Race/Ethnicity, Customized
Black
46 Participants19 Participants16 Participants11 Participants
Race/Ethnicity, Customized
Caucasian
172 Participants54 Participants56 Participants62 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Non-Caucasian
55 Participants23 Participants19 Participants13 Participants
Race/Ethnicity, Customized
Other
4 Participants2 Participants1 Participants1 Participants
Sex/Gender, Customized
Female
145 participant46 participant48 participant51 participant
Sex/Gender, Customized
Male
82 participant31 participant27 participant24 participant

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
51 / 7748 / 7552 / 75
serious
Total, serious adverse events
2 / 772 / 752 / 75

Outcome results

Primary

Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS)

The patient is rated on a scale from 0-6 on 10 items. Apparent sadness, reported sadness, lassitude, pessimistic thoughts, inner tension, suicidal thoughts, reduced sleep and appetite, concentration difficulties, inability to feel. The overall MADRS score ranges from 0-60, with 0 meaning no symptoms and score of 60 meaning maximum severity.

Time frame: Baseline to Week 8

Population: of the 227 included to the safety population, the mixed-effects model for repeated measures (MMRM) of the Intent to Treat study population was 60 for placebo, 64 for 0.25-0.75 mg Cariprazine and 54 for 1.5 to 3.0 mg Cariprazine

ArmMeasureValue (MEAN)Dispersion
PlaceboChange From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS)29.9 Score on scaleStandard Error 0.6
0.25 to 0.75 mg CariprazineChange From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS)30.2 Score on scaleStandard Error 0.6
1.5 to 3.0 mg CariprazineChange From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS)30.9 Score on scaleStandard Error 0.6
p-value: 0.7408ANCOVA
p-value: 0.9961ANCOVA
Secondary

Change in Baseline in Clinical Global Impressions-Improvement ( CGI-I )

The patient was rated on a scale from 1 to 7, with 1 indicating the patient was very much improved and 7 indicating that the patient was very much worse.

Time frame: Baseline to Week 8

Population: of the 227 included to the safety population, the mixed-effects model for repeated measures (MMRM) of the Intent to Treat study population was 60 for placebo, 64 for 0.25-0.75 mg Cariprazine and 53 for 1.5 to 3.0 mg Cariprazine

ArmMeasureValue (MEAN)Dispersion
PlaceboChange in Baseline in Clinical Global Impressions-Improvement ( CGI-I )2.1 Score on ScaleStandard Error 0.1
0.25 to 0.75 mg CariprazineChange in Baseline in Clinical Global Impressions-Improvement ( CGI-I )2.1 Score on ScaleStandard Error 0.1
1.5 to 3.0 mg CariprazineChange in Baseline in Clinical Global Impressions-Improvement ( CGI-I )2.1 Score on ScaleStandard Error 0.2
p-value: 0.3441ANCOVA
p-value: 0.2683ANCOVA

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026