Fixed-dose Safety and Efficacy Study of Asenapine for the Treatment of Acute Manic or Mixed Episode in Bipolar 1 Disorder (P05691)

Organon and Co367 enrolled

Overview

This trial will study the efficacy and safety of a fixed dose of asenapine in participants diagnosed with Bipolar 1 Disorder. Participants who qualify for the study will be randomly assigned to receive a fixed dose of asenapine (either 5 mg or 10 mg twice daily \[BID\]) or placebo (BID) for 3 weeks. Throughout the trial, observations will be made on each participant at various times to assess the safety and effectiveness of the study treatment. The primary hypothesis is that there is at least one dose of asenapine that is superior to placebo in the change from baseline in manic symptoms (as measured by Young Mania Rating Scale \[YMRS\]) at Day 21 of the trial.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Enrollment

367

Conditions

Bipolar 1 Disorder

Interventions

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Each participant must be at least 18 years of age * Male, or a female who is not of child-bearing potential or who is non-pregnant, non-lactating, and is using a medically accepted method of contraception * Each participant must have a current diagnosis of Bipolar I Disorder, current episode manic or mixed * Each participant must be confirmed to be experiencing an acute manic or mixed bipolar 1 episode * Each participant must have discontinued the use of all prohibited psychotropic medications Exclusion Criteria: * A participant must not have a primary Axis I disorder other than Bipolar 1 Disorder (i.e., an Axis 1 disorder other than Bipolar 1 Disorder that is primarily responsible for current symptoms and functional impairment) * A participant must not currently (within the past 6 months) meet the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition, Text Revision (DSM-IV-TR™) criteria for substance abuse or dependence (excluding nicotine) * A participant must not be at imminent risk of self-harm or harm to others, in the investigator's opinion based on clinical interview and responses provided on the Columbia Suicide Severity Rating Scale (CSSRS).

Outcomes

Primary Outcomes

Change From Baseline in Young Mania Rating Scale (Y-MRS) Total Score at Day 21

Y-MRS consists of responses to the following 11 items: elevated mood, increased motor activity energy, sexual interest, sleep, language-thought disorder, appearance, insight, irritability, speech - rate and amount, content and disruptive-aggressive behavior. The scores from the 11 items are summed to give a total score ranging from 0 to 60, with a higher score indicating greater severity of symptoms. The analysis is based on a mixed model repeated measures (MMRM) model. An improvement in symptoms is represented by change from baseline values that are negative.

Time frame: Baseline and Day 21

Secondary Outcomes

Change From Baseline in Clinical Global Impression - Bipolar Mania - Severity of Illness (CGI-BP-S) Overall Score at Day 21

The CGI-BP-S is a score that measures the severity of overall bipolar illness. The score ranges on a scale from 1 to 7, where 1 is normal, and 7 is very severely ill. The analysis is based on a MMRM model. An improvement in symptoms is represented by change from baseline values that are negative.

Time frame: Baseline and Day 21

Percentage of Participants Who Are Y-MRS Responders at Day 21

Y-MRS consists of responses to the following 11 items: elevated mood, increased motor activity energy, sexual interest, sleep, language-thought disorder, appearance, insight, irritability, speech - rate and amount, content and disruptive-aggressive behavior. The scores from the 11 items are summed to give a total score ranging from 0 to 60, with a higher score indicating greater severity of symptoms. Missing data were imputed by Last Observation Carried Forward (LOCF). Y-MRS responders are defined as having a \>= 50% decrease from baseline in Y-MRS total score.

Time frame: Day 21

Change From Baseline in Y-MRS Total Score at Day 2, Day 4, Day 7 and Day 14

Y-MRS consists of responses to the following 11 items: elevated mood, increased motor activity energy, sexual interest, sleep, language-thought disorder, appearance, insight, irritability, speech - rate and amount, content and disruptive-aggressive behavior. The scores from the 11 items are summed to give a total score ranging from 0 to 60, with a higher score indicating greater severity of symptoms. The analysis is based on a MMRM model. An improvement in symptoms is represented by change from baseline values that are negative.

Time frame: Baseline and Day 2, Day 4, Day 7 and Day 14

Percentage of Participants Who Are Y-MRS Responders at Day 2, Day 4, Day 7, Day 14

Y-MRS consists of responses to the following 11 items: elevated mood, increased motor activity energy, sexual interest, sleep, language-thought disorder, appearance, insight, irritability, speech - rate and amount, content and disruptive-aggressive behavior. The scores from the 11 items are summed to give a total score ranging from 0 to 60, with a higher score indicating greater severity of symptoms. Missing data were imputed by LOCF. Y-MRS responders are defined as having a \>= 50% decrease from baseline in Y-MRS total score.

Time frame: Day 2, Day 4, Day 7, Day 14

Percentage of Participants Who Are Y-MRS Remitters at Day 21

Y-MRS consists of responses to the following 11 items: elevated mood, increased motor activity energy, sexual interest, sleep, language-thought disorder, appearance, insight, irritability, speech - rate and amount, content and disruptive-aggressive behavior. The 11 items are summed to give a total score ranging from 0 to 60, with a higher score indicating greater severity of symptoms. Missing data were imputed by LOCF. Y-MRS remitters are defined as having a Y-MRS total score of 12 or lower.

Time frame: Day 21

Percentage of Participants Who Are Y-MRS Remitters at Day 2, Day 4, Day 7, Day 14, Day 21

Y-MRS consists of responses to the following 11 items: elevated mood, increased motor activity energy, sexual interest, sleep, language-thought disorder, appearance, insight, irritability, speech - rate and amount, content and disruptive-aggressive behavior. The scores from the 11 items are summed to give a total score ranging from 0 to 60, with a higher score indicating greater severity of symptoms. The analysis is based on a generalized linear mixed model (GLMM). Y-MRS remitters are defined as having a Y-MRS total score of 12 or lower.

Time frame: Day 2, Day 4, Day 7, Day 14, Day 21

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

The MADRS measures depression and consists of 10 items, each rated on a scale from 0 to 6. The MADRS total score sums the scores from the 10 items, ranging from 0 to 60, with a higher numeric rating implying a greater degree of symptom severity. Missing data were imputed by LOCF. An improvement in symptoms is represented by change from baseline values that are negative.

Time frame: Baseline and Day 7 and Day 21

Change From Baseline in CGI-BP-S Overall Score at Day 2, Day 4, Day 7, Day 14

Time frame: Baseline and Day 2, Day 4, Day 7, Day 14

Change From Baseline in CGI-BP-S Mania Score

The CGI-BP-S mania is a score that assesses the severity of the mania component of bipolar illness. The score ranges on a scale from 1 to 7, where 1 is normal, and 7 is very severely ill. Missing data were imputed by LOCF. An improvement in symptoms is represented by change from baseline values that are negative.

Time frame: Baseline and Day 2, Day 4, Day 7, Day 14, and Day 21

Change From Baseline in CGI-BP-S Depression Score

The CGI-BP-S depression is a score that assesses the severity of the depression component of bipolar illness. The score ranges on a scale from 1 to 7, where 1 is normal, and 7 is very severely ill. Missing data were imputed by LOCF. An improvement in symptoms is represented by change from baseline values that are negative.

Time frame: Baseline and Day 2, Day 4, Day 7, Day 14, and Day 21

Percentage of Participants Who Are CGI-BP Improvement (CGI-BP-I) Responders of Overall Bipolar Illness Score

The CGI-BP-I overall is a score on a 7-point scale for assessing the change from preceding phase of overall symptoms of bipolar disorder during the treatment of an acute episode or in longer term illness prophylaxis. Compared to the baseline, the CGI-BP-I overall score ranges from 1 = very much improved since initiating treatment, to 7 = very much worse since initiating treatment. Missing data were imputed by LOCF. A CGI-BP-I responder had a score of 3 (minimally improved) or lower.

Time frame: Day 2, Day 4, Day 7, Day 14, and Day 21

Percentage of Participants Who Are CGI-BP Improvement (CGI-BP-I) Responders of Mania Score

The CGI-BP-I mania is a score on a 7-point scale for assessing the change from preceding phase of mania symptoms of bipolar disorder during the treatment of an acute episode or in longer term illness prophylaxis. Compared to the baseline, the CGI-BP-I mania score ranges from 1 = very much improved since initiating treatment, to 7 = very much worse since initiating treatment. Missing data were imputed by LOCF. A CGI-BP-I responder had a score of 3 (minimally improved) or lower.

Time frame: Day 2, Day 4, Day 7, Day 14, and Day 21

Percentage of Participants Who Are CGI-BP Improvement (CGI-BP-I) Responders of Depression Score

The CGI-BP-I depression is a score on a 7-point scale for assessing the change from preceding phase of depression symptoms of bipolar disorder during the treatment of an acute episode or in longer term illness prophylaxis. Compared to the baseline, the CGI-BP-I depression score ranges from 1 = very much improved since initiating treatment, to 7 = very much worse since initiating treatment. Missing data were imputed by LOCF. A CGI-BP-I responder had a score of 3 (minimally improved) or lower.

Time frame: Day 2, Day 4, Day 7, Day 14, and Day 21

Change From Baseline in Positive And Negative Syndrome Scale (PANSS) Total Score

PANSS total score measures symptoms of schizophrenia and consists of responses to 30 items: 7 items from the positive subscale (P1-P7), 7 items from the negative subscale (N1-N7) and 16 items from the general psychopathology subscale (G1-G16). Responses to each item range from 1 = absence of symptom, to 7 = most extreme symptoms. The PANSS total score sums the scores from all 30 items, and ranges from 30 to 210, with a higher score indicating greater severity of symptoms. The analysis is based on a MMRM model. An improvement in symptoms is represented by change from baseline values that are negative.