NBI-1065845-MDD3026: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)

NCT ID: NCT06963021

Last Updated: 2025-12-22

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-30

Study Completion Date

2027-07-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The study will evaluate the efficacy of NBI-1065845 compared with placebo as an adjunctive treatment in participants with MDD on improving symptoms of depression.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Major Depressive Disorder

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

MDD Depression Major Depressive Disorder NBI-1065845 TAK-653 MADRS

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

NBI-1065845

NBI-1065845 administered orally once a day.

Group Type EXPERIMENTAL

NBI-1065845

Intervention Type DRUG

NBI-1065845 tablets

Placebo

Placebo identical in appearance to NBI-1065845 will be administered orally once a day.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Matching placebo tablets

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

NBI-1065845

NBI-1065845 tablets

Intervention Type DRUG

Placebo

Matching placebo tablets

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

TAK-653

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Participant has a primary diagnosis of recurrent MDD (moderate or severe) or persistent depressive disorder.
* Participant has had an inadequate response to oral antidepressant treatments in the current episode of depression.
* Participant must have been taking oral antidepressants for at least 8 weeks and is willing to continue the same oral antidepressants at the same dose and frequency of administration throughout participation in the study.
* Total Hamilton Depression Rating Scale-17 Item (HAM-D17) score ≥22 at screening and at study baseline (Day 1).
* Willing and able to comply with all study procedures and restrictions in the opinion of the investigator.

Exclusion Criteria

* A current or prior psychiatric disorder diagnosis in the last 1 year that was the primary focus of treatment other than MDD.
* Are considered by the investigator to be at imminent risk of suicide or injury to self or others.
* Participants depressive symptoms have previously demonstrated nonresponse to electroconvulsive therapy (ECT) in the current major depressive episode.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Neurocrine Biosciences

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Clinical Development Lead

Role: STUDY_DIRECTOR

Neurocrine Biosciences

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Neurocrine Clinical Site

Los Angeles, California, United States

Site Status RECRUITING

Neurocrine Clinical Site

Aurora, Colorado, United States

Site Status RECRUITING

Neurocrine Clinical Site

Cromwell, Connecticut, United States

Site Status RECRUITING

Neurocrine Clinical Site

Farmington, Connecticut, United States

Site Status RECRUITING

Neurocrine Clinical Site

Maitland, Florida, United States

Site Status RECRUITING

Neurocrine Clinical Site

Tampa, Florida, United States

Site Status RECRUITING

Neurocrine Clinical Site

Gaithersburg, Maryland, United States

Site Status RECRUITING

Neurocrine Clinical Site

Cedarhurst, New York, United States

Site Status RECRUITING

Neurocrine Clinical Site

New York, New York, United States

Site Status RECRUITING

Neurocrine Clincial Site

New York, New York, United States

Site Status RECRUITING

Neurocrine Clinical Site

Alken, , Belgium

Site Status RECRUITING

Neurocrine Clinical Site

Mechelen, , Belgium

Site Status RECRUITING

Neurocrine Clinical Site

Oulu, , Finland

Site Status RECRUITING

Neurocrine Clinical Site

Jelgava, , Latvia

Site Status RECRUITING

Neurocrine Clinical Site

Liepāja, , Latvia

Site Status RECRUITING

Neurocrine Clinical Site

Sigulda, , Latvia

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States Belgium Finland Latvia

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Neurocrine Medical Information Call Center

Role: CONTACT

Phone: 1-877-641-3461

Email: [email protected]

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2024-519421-37-00

Identifier Type: CTIS

Identifier Source: secondary_id

NBI-1065845-MDD3026

Identifier Type: -

Identifier Source: org_study_id