inclusion criteria: - secondary progressive multiple sclerosis (spms) diagnosis or with relapsing remitting multiple sclerosis (rrms) at risk to develop spms (at the discretion of the treating physician) - on stable ms treatment (siponimod, dimethylfumarate, glatirameracetate, interferon, teriflunomode or no current treatment) - no recent treatment changes

inclusion criteria: - secondary progressive multiple sclerosis (spms) diagnosis or with relapsing remitting multiple sclerosis (rrms) at risk to develop spms (at the discretion of the treating physician) - on stable ms treatment (siponimod, dimethylfumarate, glatirameracetate, interferon, teriflunomode or no current treatment) - no recent treatment changes