A Study of ONO-1110 in Patients With Major Depressive Disorder

February 18, 2026 updated by: Ono Pharmaceutical Co. Ltd

A Phase IIa, Randomized, Double-blind, Placebo Controlled, Parallel Group, Multi-center Trial to Evaluate the Efficacy and Safety of ONO-1110 in Patients With Major Depressive Disorder

To Evaluate the Efficacy and Safety of ONO-1110 in Patients with Major Depressive Disorder

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
100

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Japan
      • Fukuoka, Japan
        • Hirota Clinic
      • Fukuoka, Japan
        • Kokura Mental Clinic
      • Fukuoka, Japan
        • AK Clinic
      • Fukuoka, Japan
        • Hiro Mental Clinic
      • Fukuoka, Japan
        • Kokorono Clinic Hirao
      • Fukuoka, Japan
        • Mental Clinic Sakurazaka
      • Fukuoka, Japan
        • Shinseikai Kaku Mental Clinic
      • Fukuoka, Japan
        • Uematsu Mental Clinic
      • Fukuoka, Japan
        • Kokorono Clinic Iizuka
      • Gunma, Japan
        • Ichikawa Clinic
      • Hokkaido, Japan
        • Higashi-Sapporo Mental Clinic
      • Hokkaido, Japan
        • Kawamura Mental Clinic
      • Hokkaido, Japan
        • Minami1jo Mental Clinic
      • Hokkaido, Japan
        • Sapporo Kobushi Clinic
      • Hokkaido, Japan
        • Shimode Mental Clinic
      • Hyōgo, Japan
        • Tatsuta Clinic
      • Kanagawa, Japan
        • Kishiro Mental Clinic
      • Kanagawa, Japan
        • Yutaka Clinic
      • Tokyo, Japan
        • Maynds Tower Mental Clinic
      • Tokyo, Japan
        • Harai Clinic
      • Tokyo, Japan
        • Iidabashi Mental Clinic
      • Tokyo, Japan
        • Ikebukuro Olive Mental Clinic
      • Tokyo, Japan
        • Meguroeki Higashiguchi Mental Clinic
      • Tokyo, Japan
        • Monzen-nakacho Mental Clinic
      • Tokyo, Japan
        • Sangenjaya Nakamura Mental Clinic
      • Tokyo, Japan
        • Kitaikebukuro Kokoro No Clinic
      • Tokyo, Japan
        • Niseikai Murakami Iin
      • Tokyo, Japan
        • Nishi-Shinjuku Concieria Clinic
      • Tokyo, Japan
        • Sakurazaka Clinic SophyAnce

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Japanese (sex not specified)
  2. Participants who, in the opinion of the principal (or sub-investigator), are capable of understanding the content of the clinical trial and complying with its requirements
  3. Participants diagnosed with major depressive disorder based on DSM-5-TR (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision) criteria, as determined through an interview using the M.I.N.I. (Mini-international neuropsychiatric interview)
  4. Outpatients
  5. Participants whose current depressive episode has lasted for at least 2 months but no more than 12 months
  6. Participants with a HAM-D17 (Hamilton depression rating scale 17 items) total score of 18 or higher and a CGI-S (Clinical global impression-Improvement) score of 4 or higher

Exclusion Criteria:

  1. Participants with a current or past history of psychiatric or neurological disorders that meet any of the following criteria:

    • Participants with a comorbid psychiatric disorder other than major depressive disorder as defined by DSM-5-TR (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision) (assessed using the M.I.N.I.(Mini-international neuropsychiatric interview))
    • Participants with major depressive disorder with mixed features, psychotic features, or catatonia as defined by DSM-5-TR (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision)
    • Participants with a current or past history of schizophrenia or other psychotic disorders as defined by DSM-5-TR (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision)
    • Participants with neurodevelopmental disorders or personality disorders as defined by DSM-5-TR (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision)
    • Participants with a current or past history of clinically significant neurological disorders (including epilepsy)
    • Participants with neurodegenerative diseases (such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, etc.)
  2. Participants who, in the opinion of the principal (or sub-investigator), have not responded to at least two different antidepressants, each administered at an adequate dose for at least 6 weeks, during the current or past depressive episode.
  3. Participants who have used adjunctive treatments such as lithium, triiodothyronine/thyroxine, lamotrigine, valproate, carbamazepine, or atypical antipsychotics, or who have used combination therapy with antidepressants for the current depressive episode.

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?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo
Drug: Placebo
Placebo tablets once daily
Drug: ONO-1110
ONO-1110 tablets once a day
Experimental: ONO-1110
Drug: Placebo
Placebo tablets once daily
Drug: ONO-1110
ONO-1110 tablets once a day

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Change in HAM-D17(Hamilton depression rating scale 17 items) total score from baseline to Week 8 of the treatment period
Time Frame: Up to 16 weeks
Up to 16 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Plasma ONO-1110 concentrations
Time Frame: Up to 16 weeks
Up to 16 weeks
The transition of HAM-D17(Hamilton depression rating scale 17 items) total score from baseline to Week 8 of the treatment period
Time Frame: Up to 16 weeks
Up to 16 weeks
Responder rates of HAM-D17(Hamilton depression rating scale 17 items) total score at 1, 2, 4, 6, and 8 weeks of the treatment period
Time Frame: Up to 16 weeks
Responder is defined as a reduction of 50% or more in HAM-D17(Hamilton depression rating scale 17 items) total score from baseline
Up to 16 weeks
Remitted patient rates of HAM-D17(Hamilton depression rating scale 17 items) score at 1, 2, 4, 6, and 8 weeks of the treatment period
Time Frame: Up to 16 weeks
Remitted patient is defined as a total HAM-D17(Hamilton depression rating scale 17 items) total score of 7 or less.
Up to 16 weeks
Change in the total MADRS(Montgomery-Åsberg depression rating scale) score from baseline to Week 8 of the treatment period
Time Frame: Up to 16 weeks
Up to 16 weeks
Transition of HAM-A(Hamilton Anxiety Scale) total score from baseline to Week 8 of the treatment period
Time Frame: Up to 16 weeks
Up to 16 weeks
Transition of CGI-S(Clinical Global Impression of illness Severity) score from baseline to Week 8 of the treatment period
Time Frame: Up to 16 weeks
Up to 16 weeks
Transition of QIDS-J(Quick Inventory of Depressive Symptomatology) total score from baseline to Week 8 of the treatment period
Time Frame: Up to 16 weeks
Up to 16 weeks
Transition of CGI-I(Clinical Global Impression of Impression Important) score from baseline to Week 8 of the treatment period
Time Frame: Up to 16 weeks
Up to 16 weeks
Adverse Events
Time Frame: Up to 16 weeks
Up to 16 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Ono Pharmaceutical Co. Ltd

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Project Leader, Ono Pharmaceutical Co. Ltd

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 16, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 31, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 19, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 19, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 24, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 20, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ONO-1110-07
  • jRCT2031240577 (Registry Identifier: Japan Registry of Clinical Trials)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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