Study of Oral Edaravone in Healthy Adult Males

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

Study Overview

• Status: Completed
• Conditions: Healthy Adult Subjects
• Intervention / Treatment: Drug: MT-1186; Drug: MT-1186-matching placebo

• Study Type: Interventional
• Enrollment (Actual): 74
• Phase: Phase 1

Contacts and Locations

Study Locations

• Japan
  • Osaka, Japan
    • Investigational Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 45 years (Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

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

Exclusion Criteria:

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

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

10

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: A single dose MT-1186 (Part 1, Cohort S1); Healthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: A single dose MT-1186 (Part 1, Cohort S2); Healthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: A single dose MT-1186 (Part 1, Cohort S3-1); Healthy Japanese male subjects receive doses of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: A single dose MT-1186 (Part 1, Cohort S3-2); Healthy Japanese male subjects receive doses of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: A single dose MT-1186 (Part 1, Cohort S4); Healthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: A single dose MT-1186 (Part 1, Cohort S5); Healthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: A single dose MT-1186 (Part 1, Cohort S6); Healthy Japanese male subjects receive a single dose of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: A single dose MT-1186 (Part 1, Cohort S7); Healthy Caucasian male subjects receive a single dose of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: Multiple doses MT-1186 (Part 2, Cohort M1); Healthy Japanese male subjects receive multiple doses of MT-1186 or matching placebo.	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension
Experimental: Multiple doses MT-1186 (Part 2, Cohort M2); Healthy Japanese male subjects receive multiple doses of MT-1186 or matching placebo	Drug: MT-1186; Solution or suspension; Other Names: Edaravone; Drug: MT-1186-matching placebo; Solution or suspension

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Participants With Adverse Events (Aes) and Adverse Drug Reactions (ADRs)		Day 1 to 8 in Part 1, up to 12 days in Part 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.	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
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.	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
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.	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
Maximum Plasma Concentration (Cmax) of Unchanged Edaravone		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
Maximum Plasma Concentration (Cmax) of Sulfate Conjugate		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
Maximum Plasma Concentration (Cmax) of Glucuronide Conjugate		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
Part 2: Minimum Plasma Concentration at Steady State (Ctrough, ss)		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
Time to Reach Maximum Plasma Concentration (Tmax) of Unchanged Edaravone		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
Time to Reach Maximum Plasma Concentration (Tmax) of Sulfate Conjugate		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
Time to Reach Maximum Plasma Concentration (Tmax) of Glucuronide Conjugate		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
Terminal Elimination Half-life (t1/2) of Unchanged Edaravone		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
Terminal Elimination Half-life (t1/2) of Sulfate Conjugate		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
Terminal Elimination Half-life (t1/2) of Glucuronide Conjugate		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
Lambda-z of Unchanged Edaravone		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
Lambda-z of Sulfate Conjugate		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
Lambda-z of Glucuronide Conjugate		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
Mean Residence Time (MRT) of Unchanged Edaravone		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
Apparent Total Clearance (CL/F) of Unchanged Edaravone		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
Apparent Distribution Volume at Elimination Phase (Vz/F) and Apparent Distribution Volume at Steady State (Vss/F) of Unchanged Edaravone		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 Outcome Measures

Outcome Measure	Measure Description	Time Frame
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.	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.
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.	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.
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.	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.
Change of QRS Duration (QRS) From Baseline	Holter ECG data were recorded in part 1, Cohorts S4, S5, and S6.	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.

Collaborators and Investigators

• Sponsor: Tanabe Pharma Corporation
• Investigators: Study Director: General Manager, Tanabe Pharma Corporation

Publications and helpful links

General 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.
• 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.

Study record dates

Study Major Dates

• Study Start (Actual): March 20, 2018
• Primary Completion (Actual): August 3, 2018
• Study Completion (Actual): August 3, 2018

Study Registration Dates

• First Submitted: July 17, 2020
• First Submitted That Met QC Criteria: July 17, 2020
• First Posted (Actual): July 22, 2020

Study Record Updates

• Last Update Posted (Actual): May 22, 2026
• Last Update Submitted That Met QC Criteria: May 21, 2026
• Last Verified: May 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Azoles; Pyrazoles; Antipyrine; Pyrazolones; Edaravone
• Other Study ID Numbers: MT-1186-J01

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