A Study of Diroximel Fumarate (DRF) in Adult Participants From the Asia-Pacific Region With Relapsing Forms of Multiple Sclerosis (RMS)
An Open-Label, Single-Arm, Multicenter, Phase 3 Study to Evaluate the Safety and Tolerability, and Pharmacokinetics of Diroximel Fumarate (BIIB098) in Adult Participants From the Asia-Pacific Region With Relapsing Forms of Multiple Sclerosis
1 other identifier
interventional
136
2 countries
52
Brief Summary
The primary objectives of this study are to determine the safety and tolerability of DRF administered for up to 24 weeks in adult East Asian participants with RMS (Part 1) and to determine the safety and tolerability of DRF administered for up to 48 weeks in adult East Asian participants with RMS (Part 2). The secondary objective of this study is to evaluate the pharmacokinetic(s) (PK) of DRF metabolites (monomethyl fumarate \[MMF\] and 2-hydroxyethyl succinimide \[HES\]) following multiple doses of DRF in a subset of adult East Asian participants with RMS (Part 1).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Nov 2021
Typical duration for phase_3
52 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 6, 2021
CompletedFirst Posted
Study publicly available on registry
October 19, 2021
CompletedStudy Start
First participant enrolled
November 18, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 11, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
September 11, 2024
CompletedResults Posted
Study results publicly available
October 24, 2025
CompletedOctober 24, 2025
October 1, 2025
2.8 years
October 6, 2021
August 26, 2025
October 10, 2025
Conditions
Outcome Measures
Primary Outcomes (10)
Part 1: Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)
An adverse event (AE) was any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether/not related to the medicinal (investigational) product. An AE was considered treatment-emergent if it starts or worsens on or after the date of the first dose of study drug in the study until 1 day after the last dose of treatment, or completion of the safety follow-up visit, if applicable.(i.e. for participants who prematurely discontinued study treatment or withdrew from the study) . An SAE is any untoward medical occurrence that at any dose results in death, is a life-threatening event, requires inpatient hospitalization or prolongation of existing hospitalization, results in a significant disability/incapacity or congenital anomaly, is a medically important event. TEAEs included both serious and non-serious TEAEs.
Baseline (Day 1) up to Week 24 (for prematurely discontinued participants, AEs were reported up to 2 weeks post discontinuation)
Part 1: Number of Participants With Potentially Clinically Significant Abnormalities in Laboratory Parameters
Laboratory assessments included hematology, blood chemistry, and urinalysis parameters. Hematology parameters:basophils, hematocrit, red blood cell, total and differential leukocytes, platelets, lymphocytes, monocytes, neutrophils, eosinophils, hemoglobin. Blood chemistry parameters:sodium, potassium, chloride, glucose, calcium, uric acid, total protein, albumin, creatine phosphokinase, Lipid profile: blood cholesterol,high-density lipoprotein,low-density lipoprotein, and triglycerides,serum follicle-stimulating hormone,Vitamin D,thyroid stimulating hormone,serum pregnancy, HIV/Hepatitis screen,tuberculosis test,alanine aminotransferase,aspartate aminotransferase,Lactate Dehydrogenase,alkaline phosphatase,gamma glutamyl transferase,total bilirubin,blood urea nitrogen,creatinine and bicarbonate. Urinalysis parameters:color,pH,specific gravity,ketones,protein,glucose, bilirubin,nitrite,urobilinogen,occult blood,microscopic examination,urine albumin,beta-2-microglobulin,urine creatinine.
Baseline (Day 1) to Week 24
Part 1: Number of Participants With Abnormal Shift in 12-Lead Electrocardiogram (ECG) Values
The number of participants with shifts to categorical values of ECG interpretation (e.g. abnormal) were presented by each cohort. Abnormal shift includes a shift from normal or unknown to abnormal.
Baseline (Day 1) to Week 24
Part 1: Number of Participants With Clinically Relevant Abnormalities in Vital Sign Parameters
Vital sign assessment included temperature, pulse rate systolic blood pressure, diastolic blood pressure, and respiratory rate. The criteria for determining potentially clinically relevant abnormalities in vital signs included: temperature \< 36 and \> 38 degrees Celsius (C), pulse rate \< 60 and \> 100 beats per minute (bpm), systolic blood pressure (\< 90, \> 140 and \> 160 millimeters of mercury \[mmHg\]), diastolic blood pressure \< 50, \> 90 and \> 100 mmHg, weight (7% or more increase from baseline, 7% or more decrease from baseline) and respiratory rate \< 12 and \> 20 breaths per minute.
Baseline (Day 1) to Week 24
Part 1: Number of Participants With Columbia Suicide Severity Rating Scale (C-SSRS) Events
The C-SSRS was an interview-based rating scale to systematically assess suicidal ideation, suicidal behavior and non-suicidal self-injurious behavior. The C-SSRS includes 'yes' or 'no' responses for assessment of suicidal behavior (preparatory acts or behavior, aborted attempt, interrupted attempt, Suicidal behavior, completed suicide), suicidal ideation (wish to be dead, non-specific active suicidal thoughts, active suicidal ideation with any methods, active suicidal ideation with some intent, active suicidal ideation with specific plan and intent) and non-suicidal self-injurious behavior.
Baseline (Day 1) to Week 24
Parts 1 and 2: Number of Participants With TEAEs and TESAEs
An AE was any unfavorable and unintended sign, symptom, or disease temporally associated with use of medicinal (investigational) product, whether/not related to medicinal (investigational) product. AE was considered treatment-emergent if it starts or worsens on or after the date of the first dose of study drug in the study until 1 day after the last dose of treatment. SAE is any untoward medical occurrence that at any dose results in death, is a life-threatening event, requires inpatient hospitalization or prolongation of existing hospitalization, results in a significant disability/incapacity or congenital anomaly, is a medically important event. TEAEs included both serious and non-serious TEAEs. TEAEs and TESAEs for participants were collected cumulatively for Parts 1 and 2.
From Day 1 up to the end of the study (up to Week 50)
Part 2: Number of Participants With Potentially Clinically Significant Abnormalities in Laboratory Parameters
Laboratory assessments included hematology, blood chemistry, and urinalysis parameters. Hematology parameters:basophils, hematocrit, red blood cell, total and differential leukocytes, platelets, lymphocytes, monocytes, neutrophils, eosinophils, hemoglobin. Blood chemistry parameters:sodium, potassium, chloride, glucose, calcium, uric acid, total protein, albumin, creatine phosphokinase, Lipid profile: blood cholesterol,high-density lipoprotein,low-density lipoprotein, and triglycerides,serum follicle-stimulating hormone,Vitamin D,thyroid stimulating hormone,serum pregnancy, HIV/Hepatitis screen,tuberculosis test,alanine aminotransferase,aspartate aminotransferase,Lactate Dehydrogenase,alkaline phosphatase,gamma glutamyl transferase,total bilirubin,blood urea nitrogen,creatinine and bicarbonate. Urinalysis parameters:color,pH,specific gravity,ketones,protein,glucose, bilirubin,nitrite,urobilinogen,occult blood,microscopic examination,urine albumin,beta-2-microglobulin,urine creatinine.
Baseline (Day 1) to Week 48
Part 2: Number of Participants With Abnormal Shift in 12-Lead ECG Values
The number of participants with shifts to categorical values of ECG interpretation (e.g. abnormal) were presented by each cohort. Abnormal shift includes a shift from normal or unknown to abnormal.
Baseline (Day 1) to Week 48
Part 2: Number of Participants With Clinically Relevant Abnormalities in Vital Sign Parameters
Vital sign assessment included temperature, pulse rate systolic blood pressure, diastolic blood pressure, and respiratory rate. The criteria for determining potentially clinically relevant abnormalities in vital signs included: temperature \< 36 and \> 38 degrees C, pulse rate \< 60 and \> 100 bpm, systolic blood pressure (\< 90, \> 140 and \> 160 mmHg), diastolic blood pressure \< 50, \> 90 and \> 100 mmHg, weight (7% or more increase from baseline, 7% or more decrease from baseline) and respiratory rate \< 12 and \> 20 breaths per minute.
Baseline (Day 1) to Week 48
Part 2: Number of Participants With C-SSRS Events
The C-SSRS was an interview-based rating scale to systematically assess suicidal ideation, suicidal behavior and non-suicidal self-injurious behavior. The C-SSRS includes 'yes' or 'no' responses for assessment of suicidal behavior (preparatory acts or behavior, aborted attempt, interrupted attempt, Suicidal behavior, completed suicide), suicidal ideation (wish to be dead, non-specific active suicidal thoughts, active suicidal ideation with any methods, active suicidal ideation with some intent, active suicidal ideation with specific plan and intent) and non-suicidal self-injurious behavior.
Baseline (Day 1) to Week 48
Secondary Outcomes (11)
Part 1: Plasma Concentrations of Monomethyl Fumarate (MMF)-Intensive Pharmacokinetic (PK) Analysis Set
Pre-dose and at 0.5,1,2,3,4,6, and 8 hours post-dose from Day 29 to Day 169
Part 1: Plasma Concentration of 2-Hydroxyethyl Succinimide (HES)-Intensive PK Analysis Set
Pre-dose and at 0.5,1,2,3,4,6, and 8 hours post-dose from Day 29 to Day 169
Part 1: Plasma Concentrations of MMF-Sparse PK Analysis Set
Pre-dose and 2 to 3 hours post-dose on Day 29 and Day 57
Part 1: Plasma Concentrations of HES-Sparse PK Analysis Set
Pre-dose and 2 to 3 hours post-dose on Day 29 and Day 57
Part 1: Maximum Observed Concentration (Cmax) of MMF-Intensive PK Analysis Set
Pre-dose and at 0.5,1,2,3,4,6, and 8 hours post-dose from Day 29 to Day 169
- +6 more secondary outcomes
Study Arms (1)
Diroximel Fumarate (DRF)
EXPERIMENTALJapanese and Chinese participants will initiate treatment with DRF 231 milligrams (mg), oral capsule, twice daily on Day 1 through Day 7, followed by DRF 462 mg, oral capsules, twice daily from Day 8 up to Week 48.
Interventions
Administered as specified in the treatment arm
Eligibility Criteria
You may qualify if:
- Must have a diagnosis of RMS, as defined by revised 2017 McDonald's criteria.
- Expanded Disability Status Scale (EDSS) score between 0.0 and 5.0, inclusive, at screening and baseline visit (Day 1).
- Neurologically stable with no evidence of relapse within 30 days prior to baseline visit (Day 1).
- For Japanese participants: Born in Japan and biological parents and grandparents were of Japanese origin. If previously lived outside of Japan for more than 5 years, must not have had a significantly modified diet since leaving Japan.
- For Chinese participants: Born in China, and biological parents and grandparents were of Chinese origin. If previously lived outside of China for more than 5 years, must not have had a significantly modified diet since leaving China.
You may not qualify if:
- Has a multiple sclerosis (MS) relapse that has occurred within the 30 days prior to randomization and/or the participant has not stabilized from a previous relapse prior to randomization.
- History of severe allergic or anaphylactic reactions or of any allergic reactions that, in the opinion of the investigator, are likely to be exacerbated by any component of the study treatment.
- History of, or ongoing, malignant disease, including solid tumors and hematologic malignancies.
- Has a history of gastrointestinal (GI) surgery (except appendectomy or cholecystectomy that occurred more than 6 months prior to screening), irritable bowel syndrome, inflammatory bowel disease (Crohn's disease, ulcerative colitis), or other clinically significant and active GI condition per the investigator's discretion.
- History of clinically significant recurring or active GI symptoms (e.g., nausea, diarrhea, dyspepsia, constipation) within 90 days of screening, including symptoms that require the initiation of symptomatic medical treatment (e.g., initiation of a medication to treat gastroesophageal reflux disease) or a change in symptomatic medical treatment (e.g., an increase in dose) within 90 days prior to screening.
- History of systemic hypersensitivity reaction to DRF, dimethyl fumarate (DMF), MMF or other fumaric esters, the excipients contained in the formulation, and if appropriate, any diagnostic agents to be administered during the study.
- Evidence of current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection within 14 days prior to Screening, between screening and baseline visit (Day 1), or at baseline visit (Day 1), including but not limited to a fever (temperature \>37.5 degrees Celsius \[°C\]), new and persistent cough, breathlessness, or loss of taste and/or smell. Evidence of current SARS-CoV-2 infection within 14 days prior to Screening or during Screening, will be eligible for rescreening, provided that the participant is asymptomatic for 14 days prior to rescreening.
- Have close contact within 14 days prior to Day 1 with individual(s) with suspected SARS-CoV-2 infection.
- For participants who had close contact with individual(s) with suspected SARS-CoV-2 infection within 14 days prior to Day 1, as determined by the Investigator, will be eligible for rescreening, provided that the participant is asymptomatic for 14 days after the contact.
- History or positive test result at screening for human immunodeficiency virus (HIV).
- Previous participation in this study or previous studies with DRF, DMF, or MMF.
- Has a clinically significant history of suicidal ideation or suicidal behavior occurring in the past 12 months as assessed by the C-SSRS at Screening.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Biogenlead
Study Sites (52)
The First Affiliated Hospital of Anhui Medical University
Hefei, Anhui, 230022, China
Beijing Hospital
Beijing, Beijing Municipality, 100006, China
Beijing Tiantan Hospital, Capital Medical University
Beijing, Beijing Municipality, 100050, China
Fujian Medical University Union Hospital
Fuzhou, Fujian, 350001, China
Lanzhou University Second Hospital
Lanzhou, Gansu, 730030, China
Dongguan People's Hospital
Dongguan, Guangdong, 523059, China
The First Affiliated Hospital of Sun Yat-sen University
Guangzhou, Guangdong, 510080, China
Guangzhou First People's Hospital
Guangzhou, Guangdong, 510180, China
The Second Affiliated Hospital of Guangzhou Medical University
Guangzhou, Guangdong, 510260, China
Nanfang Hospital of Southern Medical University
Guangzhou, Guangdong, 510515, China
The Third Affiliated Hospital, Sun Yat-sen University
Guangzhou, Guangdong, 510630, China
Tangshan Gongren Hospital
Tangshan, Hebei, 063003, China
The First Affiliated Hospital of Harbin Medical University
Harbin, Heilongjiang, 150040, China
The Second Affiliated Hospital of Harbin Medical University
Harbin, Heilongjiang, 150086, China
Xiangya Hospital, Central South University
Changsha, Hu'nan, 410008, China
Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology
Wuhan, Hubei, 430030, China
The Affiliated Hospital of Inner Mongolia Medical University
Hohhot, Inner Mongolia, 10050, China
The First Affiliated Hospital of Soochow University
Suzhou, Jiangsu, 215004, China
Jiangxi Provincial People's Hospital
Nanchang, Jiangxi, 330006, China
The First Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, 330006, China
The First Hospital of Jilin University
Changchun, Jilin, 130021, China
Shengjing Hospital of China Medical University
Shengyang, Liaoning, 110004, China
General Hospital of Ningxia Medical University
Yinchuan, Ningxia Hui, 750004, China
Tangdu Hospital, Fourth Military Medical University
Xi'an, Shan'xi, 710038, China
Renji Hospital Shanghai Jiaotong University School of Medicine - West Branch
Shanghai, Shanghai Municipality, 200001, China
Shanxi Provincial People's Hospital
Taiyuan, Shanxi, 30012, China
Sichuan Provincial People's Hospital
Chengdu, Sichuan, 610072, China
Tianjin Medical University Affiliated General Hospital
Tianjin, Tianjin Municipality, 300052, China
First Affiliated Hospital of Kunming Medical University
Kunming, Yun'nan, 650032, China
Chiba University Hospital
Chiba, Chiba, 260-8677, Japan
Tokyo Womens Medical University Yachiyo Medical Center
Yachiyo, Chiba, 276-8524, Japan
Ehime University Hospital
Toon-shi, Ehime, 791-0295, Japan
Fukuoka University Hospital
Fukuoka, Fukuoka, 814-0180, Japan
Hospital of the University of Occupational and Environmental Health
Kitakyushu-shi, Fukuoka, 807-8556, Japan
Southern Tohoku Medical Clinic
Koriyama-shi, Fukushima, 963-8563, Japan
NHO Asahikawa Medical Center
Asahikawa-shi, Hokkaido, 070-8644, Japan
Obihiro Kosei Hospital
Obihiro, Hokkaido, 080-0024, Japan
NHO Hokkaido Medical Center
Sapporo, Hokkaido, 063-0005, Japan
University of Tsukuba Hospital
Tsukuba, Ibaraki, 305-8576, Japan
Iwate Medical University Uchimaru Medical Center
Morioka, Iwate, 020-8505, Japan
Yokohama City University Hospital
Yokohama, Kanagawa, 236-0004, Japan
Tohoku University Hospital
Sendai, Miyagi, 980-8574, Japan
Tohoku Medical and Pharmaceutical University Hospital
Sendai, Miyagi, 983-8512, Japan
Niigata University Medical & Dental Hospital
Niigata, Niigata, 951-8520, Japan
Kansai Medical University Medical Center
Moriguchi-shi, Osaka, 570-8507, Japan
Saitama Medical Center
Kawagoe-shi, Saitama, 350-8550, Japan
Juntendo University Hospital
Bunkyō City, Tokyo-To, 113-8431, Japan
National Center of Neurology and Psychiatry
Kodaira-shi, Tokyo-To, 187-8551, Japan
Ebara Hospital
Ōta-ku, Tokyo-To, 145-0065, Japan
Department of Neurosurgery, Tokyo Women's Medical University
Shinjuku-ku, Tokyo-To, 162-8666, Japan
Wakayama Medical University Hospital
Wakayama, Wakayama, 641-8510, Japan
Yamaguchi University Hospital
Ube-shi, Yamaguchi, 755-8505, Japan
MeSH Terms
Interventions
Results Point of Contact
- Title
- US Biogen Clinical Trial Center
- Organization
- Biogen
Study Officials
- STUDY DIRECTOR
Medical Director
Biogen
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 6, 2021
First Posted
October 19, 2021
Study Start
November 18, 2021
Primary Completion
September 11, 2024
Study Completion
September 11, 2024
Last Updated
October 24, 2025
Results First Posted
October 24, 2025
Record last verified: 2025-10
Data Sharing
- IPD Sharing
- Will share
In accordance with Biogen's Clinical Trial Transparency and Data Sharing Policy on https://www.biogentrialtransparency.com/