A Study to Evaluate the Maintenance Effect of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)

NCT ID: NCT07196501

Last Updated: 2026-01-14

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

550 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-18

Study Completion Date

2028-07-31

Brief Summary

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

The primary objective of this study is to evaluate the efficacy of NBI-1065845 compared with placebo as an adjunctive treatment in delaying relapse of depressive symptoms (maintenance of effect) in participants with MDD.

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

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
The study consists of a non-randomized open-label treatment period and a randomized double-blind maintenance period.

Study Groups

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

Open-label Treatment Period: NBI-1065845

Participants will be treated with NBI-1065845 during the open-label treatment period.

Group Type EXPERIMENTAL

NBI-1065845

Intervention Type DRUG

Oral tablet

Randomized Double-blind Maintenance Period: NBI-1065845

Participants will be randomized to receive NBI-1065845 during the randomized double-blind maintenance period.

Group Type EXPERIMENTAL

NBI-1065845

Intervention Type DRUG

Oral tablet

Randomized Double-blind Maintenance Period: Placebo

Participants will be randomized to receive matching placebo during the randomized double-blind maintenance period.

Group Type EXPERIMENTAL

Placebo

Intervention Type DRUG

Oral tablet

Interventions

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

NBI-1065845

Oral tablet

Intervention Type DRUG

Placebo

Oral tablet

Intervention Type DRUG

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

Oceanside, California, United States

Site Status RECRUITING

Neurocrine Clinical Site

New Haven, Connecticut, United States

Site Status RECRUITING

Neurocrine Clinical Site

Miami Gardens, Florida, United States

Site Status RECRUITING

Neurocrine Clinical Site

Orlando, Florida, United States

Site Status RECRUITING

Neurocrine Clinical Site

Palm Bay, Florida, United States

Site Status RECRUITING

Neurocrine Clinical Site

Tampa, Florida, United States

Site Status RECRUITING

Neurocrine Clinical Site

O'Fallon, Missouri, United States

Site Status RECRUITING

Neurocrine Clinical Site

Albuquerque, New Mexico, United States

Site Status RECRUITING

Neurocrine Clinical Site

Charlotte, North Carolina, United States

Site Status RECRUITING

Neurocrine Clinical Site

Edmond, Oklahoma, United States

Site Status RECRUITING

Neurocrine Clinical Site

Oklahoma City, Oklahoma, United States

Site Status RECRUITING

Neurocrine Clinical Site

Bellaire, Texas, United States

Site Status RECRUITING

Neurocrine Clinical Site

Friendswood, Texas, United States

Site Status RECRUITING

Neurocrine Clinical Site

Stafford, Texas, United States

Site Status RECRUITING

Neurocrine Clinical Site

Wichita Falls, Texas, United States

Site Status RECRUITING

Neurocrine Clinical Site

Draper, Utah, United States

Site Status RECRUITING

Neurocrine Clinical Site

Sofia, , Bulgaria

Site Status RECRUITING

Neurocrine Clinical Site

Sofia, , Bulgaria

Site Status RECRUITING

Neurocrine Clinical Site

Sofia, , Bulgaria

Site Status RECRUITING

Neurocrine Clinical Site

North Vancouver, British Columbia, Canada

Site Status RECRUITING

Neurocrine Clinical Site

Sherbrooke, Quebec, Canada

Site Status RECRUITING

Neurocrine Clinical Site

Toronto, , Canada

Site Status RECRUITING

Neurocrine Clinical Site

Tallinn, , Estonia

Site Status RECRUITING

Neurocrine Clinical Site

Tallinn, , Estonia

Site Status RECRUITING

Neurocrine Clinical Site

Tartu, , Estonia

Site Status RECRUITING

Neurocrine Clinical Site

Rome, , Italy

Site Status RECRUITING

Neurocrine Clinical Site

Bialystok, , Poland

Site Status RECRUITING

Neurocrine Clinical Site

Bydgoszcz, , Poland

Site Status RECRUITING

Neurocrine Clinical Site

Gdansk, , Poland

Site Status RECRUITING

Neurocrine Clinical Site

Barcelona, , Spain

Site Status RECRUITING

Neurocrine Clinical Site

Taipei, , Taiwan

Site Status RECRUITING

Countries

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

United States Bulgaria Canada Estonia Italy Poland Spain Taiwan

Central Contacts

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

Neurocrine Medical Information Call Center

Role: CONTACT

1-877-641-3461

Other Identifiers

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

2025-520541-72-00

Identifier Type: CTIS

Identifier Source: secondary_id

NBI-1065845-MDD3027

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.