Cohort Studyhigh evidence
Treatment escalation after clinically silent MRI lesions in relapsing-remitting multiple sclerosis.
Brain : a journal of neurology·July 24, 2026·PMID 42496160
Why it mattersCurrent guidelines often reserve DMT escalation for multiple silent lesions, but this study shows that even a single silent lesion portends worse outcomes and that escalation reduces relapse risk. Neurologists may need to reconsider the threshold for switching therapy in clinically stable patients with new MRI activity.

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