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

Inclusion Criteria:

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.
Subjects must be willing to cooperate and comply with all protocol restrictions and requirements.
Subjects who successfully completed Study MT-1186-A01

Exclusion Criteria:

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.
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
Subjects who are not eligible to continue in the study, as judged by the Investigator.
Subjects who are unable to take their medications orally or through a PEG/RIG tube.