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Efficacy and Safety Study of Oral Edaravone Administered in Subjects With ALS

A Phase 3b, Multicenter, Randomized, Double-Blind Study to Evaluate Efficacy and Safety of Oral Edaravone Administered for a Period of 48 Weeks in Subjects With Amyotrophic Lateral Sclerosis (ALS)

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04569084
Enrollment
384
Registered
2020-09-29
Start date
2020-11-13
Completion date
2023-09-29
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

ALS

Brief summary

To evaluate and compare the efficacy of two dosing regimens of oral edaravone in subjects with amyotrophic lateral sclerosis (ALS) based on the change in ALS Functional Rating Scale- Revised (ALSFRS-R) score from baseline up to Week 48:

Interventions

Oral edaravone

DRUGPlacebo

Oral

Sponsors

Shionogi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Subjects must provide a 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. 2. Subjects will be male or female, ≥ 18 to 75 years of age at the time the ICF is signed. 3. Subjects will be diagnosed with Definite ALS or Probable ALS according to the El Escorial revised criteria for the diagnosis of ALS. 4. Subjects with a baseline score ≥ 2 points on each individual item of the ALSFRS- R at screening and baseline visits. 5. Subjects have a screening and baseline %forced vital capacity (FVC) ≥ 70%. 6. Subjects with 1- to 4-point decline for 8 weeks (±7 days) in ALSFRS-R total score between screening and baseline visits. 7. Subjects whose first symptom of ALS has occurred within 2 years of providing written informed consent.

Exclusion criteria

Exclusions Related to Primary Diagnosis 1. Subjects with a history of spinal surgery after the onset of ALS, such as surgery for cervical spondylosis or a herniated disc, or plans for such surgery during the study period. Exclusions Related to Other Neurological Disorders (including, but not limited to the following) 2. Subjects with the possibility that the current symptoms may be symptoms of a disease requiring differential diagnosis, such as cervical spondylosis and multifocal motor neuropathy, cannot be ruled out. Exclusions Related to General Health or Concomitant Conditions 3. Subjects undergoing treatment for a malignancy. 4. Subjects with a complication that could have a significant effect on efficacy evaluations, such as Parkinson's disease or syndrome, schizophrenia, bipolar disorder, and dementia. 5. Subjects who have the presence or history of any clinically significant (CS) disease (except ALS) that could interfere with the objectives of the study (the assessment of safety and efficacy) or the safety of the subject, as judged by the Investigator. 6. Subjects who are female, of childbearing potential, and pregnant (a positive pregnancy test) or lactating at the screening visit (Visit 1). 7. Subjects of childbearing potential unwilling to use acceptable method of contraception from the screening visit until 3 months after the last dose of study medication. Subjects who are sexually active who do not agree to use contraception during the study period. 8. Subjects who have a significant risk of suicidality. 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 Columbia-Suicide Severity Rating Scale (C-SSRS) within the 3 months before the screening visit. 9. Subjects who have alanine aminotransferase (ALT) or aspartate aminotransferase (AST) elevations greater than 2 times the upper limit of normal (ULN) at screening. 10. Subjects with a Glomerular Filtration Rate (GFR) \< 30 mL/Min Per 1.73 m2 at screening, using the Larsson Equation. Exclusions Related to Medications 11. Subjects with history of hypersensitivity to edaravone, any of the additives or inactive ingredients of edaravone, or sulfites. 12. Subjects with hereditary problems of fructose intolerance (eg, fructose, sucrose, invert sugar, and sorbitol). 13. Subjects who participated in another study and were administered an investigational product within 1 month or 5 half-lives of the investigational agent, whichever is longer, before providing informed consent for the present study. 14. Subjects who have received any previous treatment with edaravone. 15. Subjects who have received stem cell therapy. 16. Subjects who are unable to take their medications orally at baseline (Visit 2).

Design outcomes

Primary

MeasureTime frameDescription
CAFS Score at Week 48up to 48 WeeksCAFS ranks patients' clinical outcomes based on survival time and change in the ALSFRS-R score. To calculate a patient's CAFS, each patient is compared individually to all other patients in the study. The summary score for each patient is the sum of the comparisons ( 1, 0, 1) against all other patients. After that, patients' summary scores are ranked. The CAFS rank is 1-383 and a higher CAFS rank indicates a better outcome than does a lower CAFS. Since CAFS were calculated using the imputed ALSFRS-R scores with multiple imputation method, and the maximum varies for each simulation, 383 is the maximum possible value of full range for measure of dispersion.

Secondary

MeasureTime frameDescription
Change From Baseline in % Slow Vital Capacity (SVC) at Week 48up to 48 WeeksSVC measurements will be conducted in clinic at around the same time of day where possible with the subject in sitting upright position. Subjects should make at least 3 attempts to generate acceptable and reproducible SVC data. The highest value was selected and recorded.
Change From Baseline in Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ)40 at Week 48up to 48 WeeksThe ALSAQ-40 is a questionnaire that consists of 40 questions/items with 5 discrete scales: physical mobility, activities of daily living and independence, eating and drinking, communication, emotional reactions, ranging from 0 (best health as assessed by the scale) to 100 (worse health as assessed by the measure).
Time to Death, Tracheostomy or Permanent Assisted Mechanical Ventilation (≥ 23 Hours/Day)up to 48 Weeks
Time to Death or PAMV (≥ 23 Hours/Day)up to 48 Weeks
Time to Deathup to 48 Weeks

Countries

Canada, Germany, Italy, Japan, South Korea, Switzerland, United States

Contacts

STUDY_DIRECTORShionogi Clinical Trials Administrator Clinical Support Help Line

Shionogi

Participant flow

Participants by arm

ArmCount
Edaravone 105 mg (Once Daily)
Oral edaravone 105 mg administered once daily (regimen denoted as Once Daily) in Cycles 1 through 12
192
Edaravone 105mg (2 Weeks On/Off )
Oral edaravone 105 mg administered for 14 days, followed by placebo for 14 days in Cycle 1. Subsequently, repeat oral edaravone 105 mg administered for 10 days followed by placebo for 18 days (regimen denoted as On/Off) in Cycles 2 through 12
192
Total384

Baseline characteristics

CharacteristicEdaravone 105 mg (Once Daily)Edaravone 105mg (2 Weeks On/Off )Total
Age, Customized
18-64 years
134 Participants122 Participants256 Participants
Age, Customized
65-84 years
58 Participants70 Participants128 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants5 Participants14 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
183 Participants187 Participants370 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Sex: Female, Male
Female
69 Participants70 Participants139 Participants
Sex: Female, Male
Male
123 Participants122 Participants245 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
9 / 19216 / 192
other
Total, other adverse events
118 / 192131 / 191
serious
Total, serious adverse events
52 / 19255 / 191

Outcome results

Primary

CAFS Score at Week 48

CAFS ranks patients' clinical outcomes based on survival time and change in the ALSFRS-R score. To calculate a patient's CAFS, each patient is compared individually to all other patients in the study. The summary score for each patient is the sum of the comparisons ( 1, 0, 1) against all other patients. After that, patients' summary scores are ranked. The CAFS rank is 1-383 and a higher CAFS rank indicates a better outcome than does a lower CAFS. Since CAFS were calculated using the imputed ALSFRS-R scores with multiple imputation method, and the maximum varies for each simulation, 383 is the maximum possible value of full range for measure of dispersion.

Time frame: up to 48 Weeks

Population: One subject randomized to the On/Off treatment group was excluded from this analysis because the subject did not receive any study treatment.

ArmMeasureValue (MEAN)
Edaravone 105 mg (Once Daily)CAFS Score at Week 48187.2 Units on a scale
Edaravone 105mg (2 Weeks On/Off )CAFS Score at Week 48184.2 Units on a scale
p-value: 0.777ANCOVA
Secondary

Change From Baseline in Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ)40 at Week 48

The ALSAQ-40 is a questionnaire that consists of 40 questions/items with 5 discrete scales: physical mobility, activities of daily living and independence, eating and drinking, communication, emotional reactions, ranging from 0 (best health as assessed by the scale) to 100 (worse health as assessed by the measure).

Time frame: up to 48 Weeks

Population: Those patients reached to Week 48 and conducted ALSAQ-40 assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Edaravone 105 mg (Once Daily)Change From Baseline in Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ)40 at Week 482.35 PointStandard Error 0.25
Edaravone 105mg (2 Weeks On/Off )Change From Baseline in Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ)40 at Week 481.79 PointStandard Error 0.25
Secondary

Change From Baseline in % Slow Vital Capacity (SVC) at Week 48

SVC measurements will be conducted in clinic at around the same time of day where possible with the subject in sitting upright position. Subjects should make at least 3 attempts to generate acceptable and reproducible SVC data. The highest value was selected and recorded.

Time frame: up to 48 Weeks

Population: Those patients reached to Week 48 and conducted SVC assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Edaravone 105 mg (Once Daily)Change From Baseline in % Slow Vital Capacity (SVC) at Week 48-26.94 percentage of SVCStandard Error 2.45
Edaravone 105mg (2 Weeks On/Off )Change From Baseline in % Slow Vital Capacity (SVC) at Week 48-22.15 percentage of SVCStandard Error 2.48
p-value: 0.169Mixed Model for Repeated Measures (MMRM)
Secondary

Time to Death

Time frame: up to 48 Weeks

ArmMeasureValue (MEDIAN)
Edaravone 105 mg (Once Daily)Time to DeathNA Months
Edaravone 105mg (2 Weeks On/Off )Time to DeathNA Months
Secondary

Time to Death or PAMV (≥ 23 Hours/Day)

Time frame: up to 48 Weeks

ArmMeasureValue (MEDIAN)
Edaravone 105 mg (Once Daily)Time to Death or PAMV (≥ 23 Hours/Day)NA Months
Edaravone 105mg (2 Weeks On/Off )Time to Death or PAMV (≥ 23 Hours/Day)NA Months
Secondary

Time to Death, Tracheostomy or Permanent Assisted Mechanical Ventilation (≥ 23 Hours/Day)

Time frame: up to 48 Weeks

ArmMeasureValue (MEAN)
Edaravone 105 mg (Once Daily)Time to Death, Tracheostomy or Permanent Assisted Mechanical Ventilation (≥ 23 Hours/Day)NA Months
Edaravone 105mg (2 Weeks On/Off )Time to Death, Tracheostomy or Permanent Assisted Mechanical Ventilation (≥ 23 Hours/Day)NA Months

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