A Multicenter Study of Continued Current Therapy vs Transition to Ofatumumab After Neurofilament (NfL) Elevation

Inclusion Criteria:

Signed informed consent must be obtained prior to participation in the study.
Age 18-45 years
Diagnosis of RRMS per McDonald Criteria (2017)
EDSS 0-5.5 (Inclusive)
Able to obtain MRI and attend study visits at sites
Willing to use wearable device as specified in the protocol
Able to provide blood sample
On a current DMT with approved label use for treatment of RRMS at least 6 months prior to Screening
No relapse reported within 6 months prior to Screening
Patients may enroll in the trial if they have subclinical disease activity as measured by MRI prior to enrollment. An absence of MRI activity is not exclusionary.

Exclusion Criteria:

Primary progressive or secondary progressive phenotype
Diseases other than multiple sclerosis responsible for the clinical or MRI presentation
Use of experimental or investigational drugs for MS within 2 years from Screening
Known sensitivity to gadolinium
Central Nervous System (CNS) anomalies that are better accounted for by another disease process
Known active malignancies
Active chronic disease (or stable but treated with immune therapy) of the immune system other than MS
Active infections including systemic bacterial, viral (including COVID-19) or fungal infections, known to have AIDS or tested positive for HIV antibodies
Neurological findings consistent with Progressive Multifocal Leukoencephalopathy (PML), or confirmed PML
IgG or IgM levels below lower limit of normal (LLN) at Screening