A Clinical Pharmacology Study of MT-3921 in Healthy Adult Males

January 16, 2023 updated by: Mitsubishi Tanabe Pharma Corporation
The purpose of this study is to investigate the safety, tolerability, and pharmacokinetics when MT-3921 or a placebo is intravenously given to Japanese healthy adult male subjects

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

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 (Actual)

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.
10

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 1

Contacts and Locations

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

Study Locations

  • Japan
    • Tokyo
      • Shinjuku-ku, Tokyo, Japan, 162-0053
        • Clinical Research Hospital Tokyo

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

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria: Additional screening criteria check may apply for qualification:

  • Japanese healthy adult males
  • Subjects aged between 18 and 55 years inclusive at the time of informed consent
  • Subjects with a full understanding of the nature of this study who have consented in writing to participate in the study

Exclusion Criteria: Additional screening criteria check may apply for qualification:

  • Subjects with or having a history or treatment history of disorders, including cardiac, hepatic, renal, gastrointestinal, respiratory, neuropsychiatric, hematopoietic, or endocrine system disorder, who are judged by the investigator (or subinvestigator) to be unfit for study participation
  • Subjects with a history of drug or food allergies, including anaphylaxis or significant allergic reactions
  • Subjects with a body mass index (BMI) of less than 18.5 kg/m^2 or greater than 25 kg/m^2 at the time of screening or Day -1 or those with a body weight of less than 50 kg or greater than 80 kg
  • Subjects who have donated blood or from whom blood samples have been collected in a total amount of 400 mL or more within 12 weeks prior to informed consent, 200 mL or more within 4 weeks prior to informed consent, or 800 mL or more within 1 year prior to informed consent
  • Subjects who have donated blood component or platelet apheresis within 2 weeks prior to informed consent
  • Subjects with or having a history of drug dependence or alcohol dependence
  • Subjects with clinically significant abnormalities on a 12-lead ECG, with a Fridericia-corrected QT (QTcF) interval of ≥450 msec, or with clinically significant abnormalities on an auscultation
  • Subjects with a positive result for hepatitis B virus surface (HBs) antigen, serological test for syphilis, hepatitis C virus (HCV) antibody, or human immunodeficiency virus (HIV) antigen/antibody at screening
  • Subjects with a positive polymerase chain reaction (PCR) test for Coronavirus disease 2019 (COVID-19)
  • Subjects with a family history of sudden death
  • Subjects who answered "yes" to any of the items of suicide ideation or suicide attempts in the Columbia Suicide Rating Scale (C-SSRS) assessment in the screening period
  • Subjects who do not agree to practice contraception during the study period
  • Subjects who have previously received anti-RGMa antibodies, including this investigational product
  • Subjects who have participated in other clinical studies and received other investigational products within 12 weeks before informed consent
  • Subjects who have used any drug other than the investigational product in the period within 7 days before the start of investigational product administration or 5 times the half-life of the drug, whichever is longer

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: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

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.
Experimental: MT-3921
Intravenous (IV)
Biological: MT-3921
Solution for infusion; Intravenous (IV)
Other Names:
  • Unasnemab
Placebo Comparator: Placebo
Intravenous (IV)
Biological: Placebo
Solution for infusion; Intravenous (IV)

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
Percentage of subjects with adverse events
Time Frame: 16 weeks
16 weeks
Percentage of subjects with adverse reactions
Time Frame: 16 weeks
16 weeks
Time course of serum concentrations of MT-3921
Time Frame: Day 1, 2, 3, 4, 8, 15, 29, 57, 85, and 113.
Day 1, 2, 3, 4, 8, 15, 29, 57, 85, and 113.

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.
Mitsubishi Tanabe Pharma Corporation

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.
August 3, 2022

Primary Completion (Actual)

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.
December 24, 2022

Study Completion (Actual)

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.
December 24, 2022

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).
May 22, 2022

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.
May 27, 2022

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.
May 31, 2022

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.
January 18, 2023

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.
January 16, 2023

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.
January 1, 2023

More Information

Terms related to this study

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.
  • MT-3921-Z-101
  • jRCT2031220182 (Registry Identifier: Japan Registry of Clinical Trials (jRCT))

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

Yes

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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