4. Patients who agree to be reasonably compliant with study protocol for the duration of the study
5. Any subject who is currently being treated with an MS DMT or any subject initiating a new MS DMT throughout the duration of their participation in the study will be initiated and/or treated according to local label
You may not be if
1. Patients with current diagnosis of a neurodegenerative or autoimmune disease other than MS that may impact sNfL levels, in the opinion of the investigator (including but not limited to: Alzheimer's disease, Huntington's disease, Amyotrophic Lateral Sclerosis, or Parkinson's disease, systemic lupus erythematosus, rheumatoid arthritis)
2. Inability to complete blood draws
3. Pregnant or breastfeeding, or planning to become pregnant or breastfeed for the duration of the study
4. Patients who have taken an investigational medication within five half-lives prior to screening or who plan to take an investigational medication during the study
5. Patients with a medical condition or taking a medication that may interfere with study endpoints in the opinion of the investigator
