Any new or worsening symptom (eg, tingling, numbness, vision loss, sleep
disturbance) should be investigated as a potential sign of attack recurrence
and loss of therapeutic efficacy2,11
EDSS, Expanded Disability Status Scale; Gd, gadolinium; sGFAP, serum glial fibrillary acidic protein; sNfL, serum neurofilament light chain.