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A 2-Part, Multicenter, Randomized, Blinded, Active-Controlled Phase 2 Study to Sequentially Evaluate the Safety and Efficacy of BIIB091 Monotherapy and BIIB091 Combination Therapy With Diroximel Fumarate in Participants With Relapsing Forms of Multiple Sclerosis

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502552-31-00
Acronym
257MS201
Enrollment
225
Registered
2023-08-14
Start date
2023-10-03
Completion date
Unknown
Last updated
2025-07-21

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

Conditions

Relapsing Forms of Multiple Sclerosis

Brief summary

Part 1: Number of Participants With Adverse Events (AEs), Part 1: Number of Participants With Serious Adverse Events (SAEs), Part 2: Cumulative Number of New T1 Gadolinium-Enhancing (GdE) Lesions

Detailed description

Part 1: Cumulative Number of New T1 Gadolinium-Enhancing (GdE) Lesions, Part 1: Cumulative Number of New or Enlarging T2 Hyperintense Lesions, Part 1: Cumulative Volume of New or Enlarging T2 Hyperintense Lesions, Part 1: Mean Change From Baseline in QT Interval Corrected for Heart Rate Using Fridericia's Formula (QTcF), RR, PR, QRS, and QT Intervals, Part 1: Number of Participants With Change From Baseline in Heart Rate, Part 1: Number of Participants With Clinically Significant Electrocardiogram (ECG) Abnormalities, Part 2: Cumulative Number of New or Enlarging T2 Hyperintense Lesions, Part 2: Cumulative Volume of New or Enlarging T2 Hyperintense Lesions, Part 2: Number of Participants With AEs, Part 2: Number of Participants With SAEs, Part 2: Number of Participants With Change From Baseline in QTcF, RR, PR, QRS, and QT intervals, Part 2: Number of Participants With Change From Baseline in Heart Rate, Part 2: Number of Participants With ECG Abnormalities as Assessed by 12-Lead ECG Measurements

Interventions

DRUGUse of placebo is for masking purposes only in this study. all participants will be randomized to one of the active treatment arms. this study does not have a placebo control group
DRUGi.e.
DRUGno participant will receive placebo treatment only.
DRUGSolu-Moderín 125 mg polvo y disolvente para solución inyectable
DRUG5 mmol/ml Injektionslösung
DRUGUse of placebo is for masking purposes only in this study. All participants will be randomized to one of the active treatment arms. This study does not have a placebo control group
DRUGno participant will receive placebo treatment only.

Sponsors

Biogen Idec Research Limited
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
Part 1: Number of Participants With Adverse Events (AEs), Part 1: Number of Participants With Serious Adverse Events (SAEs), Part 2: Cumulative Number of New T1 Gadolinium-Enhancing (GdE) Lesions

Secondary

MeasureTime frame
Part 1: Cumulative Number of New T1 Gadolinium-Enhancing (GdE) Lesions, Part 1: Cumulative Number of New or Enlarging T2 Hyperintense Lesions, Part 1: Cumulative Volume of New or Enlarging T2 Hyperintense Lesions, Part 1: Mean Change From Baseline in QT Interval Corrected for Heart Rate Using Fridericia's Formula (QTcF), RR, PR, QRS, and QT Intervals, Part 1: Number of Participants With Change From Baseline in Heart Rate, Part 1: Number of Participants With Clinically Significant Electrocardiogram (ECG) Abnormalities, Part 2: Cumulative Number of New or Enlarging T2 Hyperintense Lesions, Part 2: Cumulative Volume of New or Enlarging T2 Hyperintense Lesions, Part 2: Number of Participants With AEs, Part 2: Number of Participants With SAEs, Part 2: Number of Participants With Change From Baseline in QTcF, RR, PR, QRS, and QT intervals, Part 2: Number of Participants With Change From Baseline in Heart Rate, Part 2: Number of Participants With ECG Abnormalities as Assessed by 12-Lead ECG M

Countries

Bulgaria, Czechia, Germany, Italy, Poland, Romania, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026