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Healthy Adult SubjectsPhase 1NCT04481750

Study of Oral Edaravone in Healthy Adult Males

A Phase 1 study testing MT-1186 in people with Healthy Adult Subjects, run by Shionogi at 1 site in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To evaluate the pharmacokinetics safety, and tolerability of single and multiple doses of edaravone solution and suspension in healthy adult males Read more about this study

Who is it for?
Ages 20 to 45 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy Adult Subjects
What is being tested?
MT-1186
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
74 participants
Where
1 siteJapan
Study dates
20 Mar 2018to 3 Aug 2018
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 45 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Additional screening criteria check may apply for qualification:
  • Healthy adult male volunteers
  • Japanese or Caucasian
  • Subjects aged between 20 and 45 years at the time of informed consent
  • Subjects who have thoroughly understood the contents of the study and voluntarily provided written informed consent to participate in the study

Who cannot join

  • Additional screening criteria check may apply for qualification:
  • Subjects with a current or previous history of cardiac, hepatic, renal, gastrointestinal, respiratory, psychiatric/nervous, hematopoietic, or endocrine diseases, and those whom the investigator (or subinvestigator) deems unsuitable for the study
  • Body mass index (BMI) of <18.0 or >30.0, or body weight of <50 kg (BMI formula: body weight [kg]/height [m]2, rounded to one decimal place)
  • Subjects who have undergone any surgery known to affect the gastrointestinal absorption of drugs
  • Subjects who do not agree to use an effective method of contraception from initiation of study drug administration to 14 days after completion (discontinuation) of study drug administration
  • Subjects who have previously received edaravone
  • Subjects who have participated in another clinical study and received a study drug within 12 weeks before providing informed consent

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Investigational Site

    Osaka

Other trials in Japan

About this study

Official title: Phase I Study of Oral Edaravone in Healthy Adult Males (Single- and Multiple-dose Study)

To evaluate the pharmacokinetics safety, and tolerability of single and multiple doses of edaravone solution and suspension in healthy adult males

Being tested
MT-1186, MT-1186-matching placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MT-1186Drug

    Also called Edaravone

    Solution or suspension

  • MT-1186-matching placeboDrug

    Solution or suspension

Study groups in NCT04481750
Study groupRoleWhat they receive
A single dose MT-1186 (Part 1, Cohort S1)ExperimentalHealthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
A single dose MT-1186 (Part 1, Cohort S2)ExperimentalHealthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
A single dose MT-1186 (Part 1, Cohort S3-1)ExperimentalHealthy Japanese male subjects receive doses of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
A single dose MT-1186 (Part 1, Cohort S3-2)ExperimentalHealthy Japanese male subjects receive doses of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
A single dose MT-1186 (Part 1, Cohort S4)ExperimentalHealthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
A single dose MT-1186 (Part 1, Cohort S5)ExperimentalHealthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
A single dose MT-1186 (Part 1, Cohort S6)ExperimentalHealthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
A single dose MT-1186 (Part 1, Cohort S7)ExperimentalHealthy Caucasian male subjects receive a single dose of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
Multiple doses MT-1186 (Part 2, Cohort M1)ExperimentalHealthy Japanese male subjects receive multiple doses of MT-1186 or matching placebo.
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo
Multiple doses MT-1186 (Part 2, Cohort M2)ExperimentalHealthy Japanese male subjects receive multiple doses of MT-1186 or matching placebo
Receives: Drug: MT-1186; Drug: MT-1186-matching placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Adverse Events (Aes) and Adverse Drug Reactions (ADRs)

    Measured: Day 1 to 8 in Part 1, up to 12 days in Part 2

  2. Area Under the Concentration Versus Time Curve (AUC) of Unchanged Edaravone

    Area under the plasma concentration versus time curve from time zero up to 24 hours (AUC0-24) of unchanged edaravone.

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  3. Area Under the Concentration Versus Time Curve (AUC) of Sulfate Conjugate

    Area under the plasma concentration versus time curve from time zero up to 24 hours (AUC0-24) of sulfate conjugate.

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  4. Area Under the Concentration Versus Time Curve (AUC) of Glucuronide Conjugate

    Area under the plasma concentration versus time curve from time zero up to 24 hours (AUC0-24) of glucuronide conjugate.

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  5. Maximum Plasma Concentration (Cmax) of Unchanged Edaravone

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  6. Maximum Plasma Concentration (Cmax) of Sulfate Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  7. Maximum Plasma Concentration (Cmax) of Glucuronide Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  8. Part 2: Minimum Plasma Concentration at Steady State (Ctrough, ss)

    Measured: Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  9. Time to Reach Maximum Plasma Concentration (Tmax) of Unchanged Edaravone

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  10. Time to Reach Maximum Plasma Concentration (Tmax) of Sulfate Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  11. Time to Reach Maximum Plasma Concentration (Tmax) of Glucuronide Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  12. Terminal Elimination Half-life (t1/2) of Unchanged Edaravone

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  13. Terminal Elimination Half-life (t1/2) of Sulfate Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  14. Terminal Elimination Half-life (t1/2) of Glucuronide Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  15. Lambda-z of Unchanged Edaravone

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  16. Lambda-z of Sulfate Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  17. Lambda-z of Glucuronide Conjugate

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  18. Mean Residence Time (MRT) of Unchanged Edaravone

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  19. Apparent Total Clearance (CL/F) of Unchanged Edaravone

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

  20. Apparent Distribution Volume at Elimination Phase (Vz/F) and Apparent Distribution Volume at Steady State (Vss/F) of Unchanged Edaravone

    Measured: Part 1: Pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12, 24, 36, 48 hrs post-dose, Part 2: Day 1 and 5 at pre-dose, 0.25, 0.5, 1.5, 2, 4, 6, 8, 12 hrs post-dose; Day 2 to 4 at pre-dose; Day 6 at 24 hrs post-dose on Day 5; Day 7 at 48 hrs post-dose on Day 5

Secondary outcomes (4)
  1. Change of Heart Rate (HR) From Baseline

    Holter ECG data were recorded in part 1, Cohorts S4, S5, and S6. Baseline is calculated as average HR from 0.75, 0.5, and 0.25 hours pre-dose.

    Measured: 0.75, 0.5, and 0.25 hours pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 6, 8, 12, 24, 36, and 48 hours post-dose.

  2. Change of PR Interval (PR) From Baseline

    Holter ECG data were recorded in part 1, Cohorts S4, S5, and S6. Baseline is calculated as average HR from 0.75, 0.5, and 0.25 hours pre-dose.

    Measured: 0.75, 0.5, and 0.25 hours pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 6, 8, 12, 24, 36, and 48 hours post-dose.

  3. Change of QTcF Interval (QTcF) From Baseline

    Holter ECG data were recorded in part 1, Cohorts S4, S5, and S6. Baseline is calculated as average HR from 0.75, 0.5, and 0.25 hours pre-dose.

    Measured: 0.75, 0.5, and 0.25 hours pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 6, 8, 12, 24, 36, and 48 hours post-dose.

  4. Change of QRS Duration (QRS) From Baseline

    Holter ECG data were recorded in part 1, Cohorts S4, S5, and S6.

    Measured: 0.75, 0.5, and 0.25 hours pre-dose, 0.25, 0.5, 1, 1.5, 2, 4, 6, 8, 12, 24, 36, and 48 hours post-dose.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Jul 2020
  2. Study start20 Mar 2018
  3. Primary completion3 Aug 2018
  4. Study completion3 Aug 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
74 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04481750
Sponsor's protocol ID
MT-1186-J01
Status last verified
Jun 2026
First submitted
17 Jul 2020
Last updated
16 Jul 2026
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Shimizu H, Nishimura Y, Shiide Y, Matsuda H, Akimoto M, Matsuda M, Nakamaru Y, Kato Y, Kondo K. Evaluation of Pharmacokinetics, Safety, and Drug-Drug Interactions of an Oral Suspension of Edaravone in Healthy Adults. Clin Pharmacol Drug Dev. 2021 Oct;10(10):1174-1187. doi: 10.1002/cpdd.925. Epub 2021 Mar 11.

    PubMed 33704925
  • Shimizu H, Nishimura Y, Shiide Y, Akimoto M, Matsuda H, Kato Y, Hirai M. Food Effect Study to Assess the Impact on Edaravone Pharmacokinetic Profiles in Healthy Participants. Clin Ther. 2022 Dec;44(12):1552-1565. doi: 10.1016/j.clinthera.2022.10.001. Epub 2022 Nov 12.

    PubMed 36376130

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing MT-1186 in people with Healthy Adult Subjects, run by Shionogi at 1 site in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Aug 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Adverse Events (Aes) and Adverse Drug Reactions (ADRs) (time frame: Day 1 to 8 in Part 1, up to 12 days in Part 2). The study lists 20 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04481750, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jul 2026.

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