To Evaluate the Effects of NMRA-335140 on Symptoms of Major Depression in Participants With Bipolar II Disorder.

NCT ID: NCT06429722

Last Updated: 2025-07-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

18 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-05-13

Study Completion Date

2025-05-30

Brief Summary

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This is a randomized, double-blind, placebo-controlled pilot study aiming to evaluate the effects of NMRA-335140 on symptoms of major depression in adults with Bipolar (BP) II disorder. The study design consists of a Screening Period (up to 28 days), a 6-week Treatment Period (during which participants will receive either NMRA-335140 or placebo), and a 6-week Safety Follow-up Period.

Detailed Description

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Conditions

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Major Depressive Episode Associated With Bipolar II Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Sponsor will also be blinded

Study Groups

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NMRA-335140 80 milligrams (mg) once daily (QD)

Participants will receive a NMRA-335140 tablet at a dose of 80 mg QD.

Group Type EXPERIMENTAL

NMRA-335140 80 mg

Intervention Type DRUG

Participants will receive NMRA-335140 at a dose of 80 mg QD, orally.

Placebo

Placebo participants will receive matching placebo tablet once daily.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo will be administered orally

Interventions

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NMRA-335140 80 mg

Participants will receive NMRA-335140 at a dose of 80 mg QD, orally.

Intervention Type DRUG

Placebo

Placebo will be administered orally

Intervention Type DRUG

Other Intervention Names

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BTRX-335140 CYM-53093 Navacaprant

Eligibility Criteria

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Inclusion Criteria

1. Have a primary Diagnostic and Statistical Manual of Mental Disorders Fifth Edition Text Revised (DSM-5-TR) diagnosis of BP II disorder with a current major depressive episode (MDE), without psychotic features confirmed by Structured Clinical Interview for DSM 5 Disorders, Clinical Trials Version (SCID-5-CT) at screening (this may be a first or recurrent episode).
2. Participant's current MDE and lifetime history of hypomanic episodes must be confirmed by independent assessment.
3. The symptoms of the current MDE have been present for more than 4 weeks prior to the Screening Visit, but no longer than 12 months prior to the Screening Visit.
4. Have a MADRS total score of 25 or higher at Screening and Baseline.
5. A change in MADRS total score between Screening and Baseline of ≤20%.

Exclusion Criteria

1. Have failed 2 or more courses of antidepressant (adequate dose and duration, i.e., minimum 6 weeks) or mood stabilizer/antipsychotic treatment (each or in combination) for treatment of depressive symptoms in the current MDE.
2. Have currently or in the past year any of the following DSM-5-TR disorders: bipolar episodes with mixed features (including the current MDE), bipolar II with rapid cycling pattern (4 or more distinct mood episodes during a 12-month period). Participants with comorbid generalized anxiety disorder, social anxiety disorder, simple phobias, panic disorder, for whom bipolar II MDE is considered the primary diagnosis are not excluded.
3. Have a lifetime diagnosis of bipolar I disorder (manic episode schizophrenia, schizoaffective disorder, schizophreniform disorder, anorexia nervosa, bulimia nervosa, cluster B personality disorder, post-traumatic stress disorder (PTSD), or obsessive- compulsive disorder.
4. Have moderate to severe substance or alcohol use disorder, per DSM-5-TR criteria, within the 12 months prior to screening (excluding nicotine).
5. Are actively suicidal (e.g., any suicide attempts within the past 12 months) or are at serious suicidal risk as indicated by any current suicidal intent, including a plan, as assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) (score of "YES" on suicidal ideation Item 4 or 5 within 3 months prior to Visit 1 \[screening\]) and/or based on clinical evaluation by the Investigator; or are homicidal, in the opinion of the Investigator.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Neumora Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Neumora Investigator Site

Phoenix, Arizona, United States

Site Status

Neumora Investigator Site

Little Rock, Arkansas, United States

Site Status

Neumora Investigator Site

Garden Grove, California, United States

Site Status

Neumora Investigator Site

Long Beach, California, United States

Site Status

Neumora Investigator Site

San Jose, California, United States

Site Status

Neumora Investigator Site

Torrance, California, United States

Site Status

Neumora Investigator Site

Gainesville, Florida, United States

Site Status

Neumora Investigator Site

Lauderhill, Florida, United States

Site Status

Neumora Investigator Site

Maitland, Florida, United States

Site Status

Neumora Investigator Site

Miami, Florida, United States

Site Status

Neumora Investigator Site

Miami Lakes, Florida, United States

Site Status

Neumora Investigator Site

Marietta, Georgia, United States

Site Status

Neumora Investigator Site

Savannah, Georgia, United States

Site Status

Neumora Investigator Site

Watertown, Massachusetts, United States

Site Status

Neumora Investigator Site

Flowood, Mississippi, United States

Site Status

Neumora Investigator Site

Marlton, New Jersey, United States

Site Status

Neumora Investigator Site

Princeton, New Jersey, United States

Site Status

Neumora Investigator Site

Toms River, New Jersey, United States

Site Status

Neumora Investigator Site

Brooklyn, New York, United States

Site Status

Neumora Investigator Site

Houston, Texas, United States

Site Status

Neumora Investigator Site

Bellevue, Washington, United States

Site Status

Countries

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United States

Other Identifiers

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NMRA-335140-202

Identifier Type: -

Identifier Source: org_study_id

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