A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Manic Episodes in Bipolar-I Disorder
The purpose of this study is to evaluate the efficacy and safety of KarXT for the treatment of manic episodes in Bipolar-I Disorder.
Study details:
This is a Phase 3, randomized, double-blind, placebo-controlled, multicenter, inpatient study in subjects with bipolar disorder experiencing an acute episode of mania or mania with mixed features. The primary objective of the study is to evaluate the efficacy of KarXT compared to placebo in treating symptoms of mania during a 3-week inpatient period. The duration of the study including screening, the double-blind inpatient treatment period and safety-follow-up is no more than seven weeks.
Eligibility criteria
Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.
Inclusion criteria
- Participants must have a primary diagnosis of Bipolar-I disorder established by a comprehensive psychiatric evaluation.
- Participants must be experiencing an acute episode or relapse of mania or mania with mixed features (≤ 3 weeks).
- Participants must require hospitalization for the acute exacerbation or relapse of mania.
- Participants must have all psychotropic medications washed out in no more than 14 days prior to the first dose of the study drug.
- Participants must have a Young Mania Rating Scale (YMRS) score of ≥ 20 at Screening and at Baseline.
- Participants must have a Clinical Global Impressions-Bipolar (CGI-BP) ≥ 4 at Screening and at Baseline.
Exclusion criteria
- Participants must not have any primary Diagnostic and Statistical Manual of Mental Disorders (5th Edition, Text Revision) (DSM-5-TR) disorder, other than BP-I with mania or mania with mixed features within 12 months before screening, including BP-I with depression (for previous 3 months only), BP-II disorder, major depressive disorder, and primary psychotic disorder, with the exception of mild anxiety disorders.
- Participants must not have a primary diagnosis of BP-I with rapid cycling (≥ 4 distinct mood episodes in one year).
- Participants must not have a DSM-5-TR diagnosis of moderate to severe substance use disorder (except tobacco use disorder) within the 12 months before screening, or current use as determined by urine toxicology screen or alcohol test.
- Participants must not be at risk for suicidal behavior at screening or the baseline visit as determined by the Investigator's clinical assessment and the Columbia-Suicide Severity Rating Scale (C-SSRS).
- Participants must not have a history of irritable bowel syndrome (with or without constipation) or serious constipation requiring treatment within the last 6 months.
- Participants must not have a history or high risk of urinary retention, gastric retention, or untreated narrow-angle glaucoma.
- Other protocol-defined Inclusion/Exclusion criteria apply.
Eligibility
Age eligible for study : NA
Healthy volunteers accepted : No
Gender eligible for study: ALL
Things to know
Study dates
Study start:
Primary completion:
Study completion finish:
Study type
TREATMENT
Phase
- PHASE3
Study ID
NCT06951698
Intervention or treatment
DRUG: KarXT
OTHER: Placebo
Conditions
- Bipolar-I Disorder With Mania or Mania With Mixed Features
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Research sites nearby
Closest Location:
Ramsay Clinic Northside
Select from list below to view details:
Ramsay Clinic Northside
St Leonards, New South Wales, Australia
Ramsay Clinic New Farm
Brisbane, Queensland, Australia
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Who is running the clinical trial?
Bristol-Myers Squibb
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
| Participant Group/Arm | Intervention/Treatment |
|---|---|
EXPERIMENTAL: KarXT
| Drug: KarXT |
PLACEBO_COMPARATOR: Placebo
| Other: Placebo |
What is the study measuring?
Primary Outcome
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in Young Mania Rating Scale (YMRS) score | The YMRS comprised of 11 items that assess the severity of manic symptoms. All items are given a severity rating, with 4 items graded from 0 to 8 (irritability, speech, thought content, and disruptive/aggressive behavior), and the remaining 7 items are graded from 0 to 4 points. The highest score obtainable on the YMRS is 60 and the higher the number the greater the number of symptoms and/or the greater their severity. | At week 3 |
Secondary Outcome
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in Clinical Global Impressions-Bipolar (CGI-BP) | The CGI-BP is designed to assess the severity, improvement, and efficacy of treatment in individuals with bipolar disorder. Only section I, illness severity, will be used, which includes three components: mania, depression, and overall bipolar illness. The ratings are on a 7-point scale (1 = normal, not ill; 2 = minimally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; 7 = very severely ill) | At week 3 |
| Occurrence of response based on a ≥ 50% decrease from baseline in YMRS score | Not Specified | At week 3 |
| Occurrence of response based on CGI-BP change from baseline ≥ 1 | Not Specified | At week 3 |
References
Clinical Trials Gov: A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Manic Episodes in Bipolar-I DisorderOther trials to consider
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