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Safety Extension Study of Oral Edaravone Administered in Subjects With Amyotrophic Lateral Sclerosis (ALS)

A Phase 3, Multi-center, Open-label, Safety Extension Study of Oral Edaravone Administered Over 96 Weeks in Subjects With Amyotrophic Lateral Sclerosis (ALS)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04577404
Enrollment
124
Registered
2020-10-06
Start date
2020-10-29
Completion date
2023-08-09
Last updated
2026-07-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amyotrophic Lateral Sclerosis (ALS)

Brief summary

This is a Phase 3, international, multicenter, open-label, long-term extension study. The primary objective of this study is to evaluate the long-term safety and tolerability of oral edaravone in subjects with Amyotrophic Lateral Sclerosis (ALS) for up to 96 weeks.

Interventions

Treatment cycles with daily dosing for 10 days out of a 14-day period, followed by a 14 day drug free period up to 96 weeks of treatment or until the drug is commercially available in that country.

Sponsors

Shionogi
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Single Arm Open Label

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Subjects must provide signed and dated informed consent form (ICF) to participate in the study. Subjects must be able (in the judgment of the Investigator) to understand the nature of the study and all risks involved with participation in the study. 2. Subjects must be willing to cooperate and comply with all protocol restrictions and requirements. 3. Subjects who successfully completed Study MT-1186-A01.

Exclusion criteria

1. Subjects of childbearing potential unwilling to use a highly effective method of contraception from Visit 1 until 3 months after the last dose of study medication. 2. Subjects who have a significant risk of suicide. Subjects with any suicidal behavior or suicidal ideation of type 4 (active suicidal ideation with some intent to act, without a specific plan) or type 5 (active suicidal ideation with specific plan and intent) based on the C-SSRS at Visit 3. Subjects who are not eligible to continue in the study, as judged by the Investigator. 4. Subjects who are unable to take their medications orally or through a PEG/RIG tube.

Design outcomes

Primary

MeasureTime frameDescription
Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to Deathup to 96 WeeksAEs that occurred on or after the first dose in the MT-1186-A03 will be summarized, which implies AE that occurred during MT-1186-A01 will not be summarized. - Severe TEAEs: TEAEs which was classified as severe for the severity were analyzed. The severity of TEAEs was classified according to the following criteria: Mild (The event is transient and easily tolerated by the subject.), Moderate: The event causes discomfort and interferes with the subject's general condition.), and Severe (The event causes considerable interference with the subject's general condition and may be incapacitating.) - TESAEs, which is Serious TEAEs, is the TEAEs when the patients outcome is death, life-threatening, hospitalization, or disability or permanent damage.
Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to Deathup to 96 WeeksAEs that occurred on or after the first dose in the MT-1186-A03 will be summarized, which implies AE that occurred during MT-1186-A01 will not be summarized.

Countries

Canada, France, Germany, Italy, Japan, United States

Contacts

STUDY_DIRECTORShionogi Clinical Trials Administrator Clinical Support Help Line

Shionogi

Participant flow

Participants by arm

ArmCount
MT-1186
MT-1186 105mg (2 weeks On/Off)
124
Total124

Baseline characteristics

CharacteristicMT-1186
Age, Continuous59.0 years
STANDARD_DEVIATION 10.1
Age, Customized
Adults (18-64 years)
84 Participants
Age, Customized
From 65 to 84 years
40 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
118 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants
Sex: Female, Male
Female
41 Participants
Sex: Female, Male
Male
83 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
19 / 124
other
Total, other adverse events
70 / 124
serious
Total, serious adverse events
52 / 124

Outcome results

Primary

Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to Death

AEs that occurred on or after the first dose in the MT-1186-A03 will be summarized, which implies AE that occurred during MT-1186-A01 will not be summarized. * Severe TEAEs: TEAEs which was classified as severe for the severity were analyzed. The severity of TEAEs was classified according to the following criteria: Mild (The event is transient and easily tolerated by the subject.), Moderate: The event causes discomfort and interferes with the subject's general condition.), and Severe (The event causes considerable interference with the subject's general condition and may be incapacitating.) * TESAEs, which is Serious TEAEs, is the TEAEs when the patients outcome is death, life-threatening, hospitalization, or disability or permanent damage.

Time frame: up to 96 Weeks

ArmMeasureGroupValue (NUMBER)
MT-1186Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to DeathNumber of TEAEs616 events
MT-1186Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to DeathNumber of ADRs17 events
MT-1186Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to DeathNumber of severe TEAEs60 events
MT-1186Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to DeathNumber of TESAEs75 events
MT-1186Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to DeathNumber of TEAEs leading to discontinuation35 events
MT-1186Number of Events of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESEAs, TEAEs Leading to Discontinuation, Any TEAEs Leading to DeathNumber of TEAEs leading to death19 events
Primary

Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to Death

AEs that occurred on or after the first dose in the MT-1186-A03 will be summarized, which implies AE that occurred during MT-1186-A01 will not be summarized.

Time frame: up to 96 Weeks

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MT-1186Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to DeathNumber of TEAEs113 Participants
MT-1186Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to DeathNumber of ADRs12 Participants
MT-1186Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to DeathNumber of severe TEAEs44 Participants
MT-1186Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to DeathNumber of TESEAs52 Participants
MT-1186Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to DeathNumber of TEAEs leading to discontinuation28 Participants
MT-1186Number of Subjects of Treatment Emergency Adverse Events (TEAEs), Adverse Drug Reactions (ADRs), Severe TEAEs, TESAEs, TEAEs Leading to Discontinuation and TEAEs Leading to DeathNumber of TEAEs leading to death19 Participants
Other Pre-specified

Change From Baseline of ALS Functional Rating Scale-Revised (ALSFRS-R) at Week 96

ALS Functional Rating Scale- Revised (ALSFRS-R). The ALSFRS-R is rating scale (ratings 0 = can't do, to 4 = normal ability) used to determine participants' assessment of their capability and independence in 12 functional activities.

Time frame: Baseline to Week 96

Other Pre-specified

Number of Events of Death, Tracheostomy, or Permanent Assisted Mechanical Ventilation

Time frame: up to 96 Weeks

Source: ClinicalTrials.gov · Data processed: Jul 21, 2026