Study to Assess the Effects of Oral NMRA-335140 Versus Placebo in Participants With Major Depressive Disorder

Neumora Therapeutics

Status and phase: Enrolling; Phase 3

Conditions: Major Depressive Disorder

Treatments: Drug: NMRA-335140; Drug: Placebo

Study type: Interventional

Funder types: Industry

Identifiers

NCT06058013

NMRA-335140-302

KOASTAL-2 (Other Identifier)

Details and patient eligibility

About

This is a randomized, double-blind, placebo-controlled, multicenter study to evaluate the effects of NMRA-335140 (formerly BTRX-335140) on symptoms of depression in participants with Major Depressive Disorder (MDD). The study design consists of a Screening Period (up to 28 days), and a 6-week Treatment Period (during which participants will receive either NMRA-335140 or placebo). At the completion of the 6-week Treatment Period, participants who complete the study, provide informed consent, and meet the eligibility criteria may enter an open-label extension study (NMRA-335140-501).

Enrollment: 332 estimated patients

Sex: All

Ages: 18 to 65 years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion criteria:

• Have a primary Diagnostic and Statistical Manual of Mental Disorders Fifth Edition Text Revised (DSM-5-TR) diagnosis of MDD 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).
• Participant's current major depressive episode must be confirmed by independent assessment.
• The symptoms of the current MDD episode have been present for more than 4 weeks prior to the Screening Visit, but no longer than 12 months prior to the Screening Visit.
• Have a MADRS total score of 25 or higher at Screening and Baseline.
• A change in MADRS total score between Screening and Baseline of ≤20%.

Key Exclusion criteria:

• Have failed 2 or more courses of antidepressant treatment at sufficient doses for at least 6 to 8 weeks for the current MDD episode.
• Currently or in the past year have been diagnosed with a personality disorder per DSM-5-TR or in the past 3 years have been diagnosed with any of the following DSM-5-TR disorders: anorexia nervosa, bulimia nervosa, or binge eating disorder. Participants with comorbid generalized anxiety disorder, social anxiety disorder, simple phobias, or panic disorder for whom MDD is considered the primary diagnosis are not excluded.
• Have a lifetime diagnosis of bipolar 1 or 2, schizophrenia, schizoaffective, schizophreniform, obsessive compulsive disorder, or post traumatic stress disorder (PTSD).
• Have moderate to severe substance or alcohol use disorder, per DSM-5-TR criteria, within the 12 months prior to screening (excluding nicotine).
• Are actively suicidal (eg, 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. Participants who are currently hospitalized for MDD symptoms or suicidality are not allowed into the study. If there is a recent history (within 3 months of screening) of hospitalization due to MDD symptoms, the participant should be discussed with the Medical Monitor for eligibility.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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332 participants in 2 patient groups, including a placebo group

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

Experimental group

Description:

Participants will receive a NMRA- 335140 tablet at a dose of 80 mg once daily (QD)

Treatment:

Drug: NMRA-335140

Placebo

Placebo Comparator group

Description:

Placebo participants will receive matching placebo tablet once daily.

Treatment:

Drug: Placebo