Kesimpta® (Ofatumumab) in Swiss Multiple Sclerosis Patients - an Observational Study

Inclusion Criteria:

1. Written informed consent must be obtained before participating in the study.

2. Diagnosis of RMS per McDonald Criteria (2017) occurred within 3 years prior toinitiation of Ofatumumab.

3. Adult patients who have been on treatment with Ofatumumab for at least 3 months, butnot longer than 12 months prior to inclusion in the study.

4. Ofatumumab treatment in line with the Swiss Kesimpta® label (i.e. adult patientswith active, relapsing forms of MS)

5. Patient is willing and able to complete patient diary during course of the study, aswell as to complete PRO questionnaires.

Exclusion Criteria:

1. Use of investigational drugs during the study, OR between Ofatumumab initiation andinclusion into the study, OR within 3 months before Ofatumumab initiation, OR within 5 half-lives of investigational drug before Ofatumumab initiation, OR until theexpected pharmacodynamic effect has returned to baseline, whichever is longer.

2. Subjects who are not able to provide consent due to incapable judgement