Inclusion Criteria:  Adult patients with relapsing forms of multiple sclerosis (RMS) to delay the progression of physical disability and reduce the frequency of relapse Expanded Disability Status Scale (EDSS) of 5.5 or lower (aligned with the plannedKEP criteria). Patients accessing ofatumumab through the PBS would have to meet the finalised restriction criteria (to be confirmed). Patients will provide consent to participate in Part I of the study through the MSGo experience program or patient support program onboarding process. Patients will need to provide additional consent to participate in Part II sub-study.  Exclusion Criteria:  Patients diagnosed with Primary Progressive MS or Secondary Progressive MS without disease activity in line with the Australian Product Information].