The Link Between LEQEMBI and Stroke Risk: Can LEQEMBI Cause a Stroke?
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4 min read
In clinical trials for the Alzheimer's medication LEQEMBI (lecanemab), up to 12.6% of patients experienced brain swelling (ARIA-E) and 17.3% experienced brain bleeding (ARIA-H), which was higher than in the placebo group. While often asymptomatic, these side effects can, in rare cases, manifest with serious, stroke-like symptoms or lead to fatal brain hemorrhages, raising concerns about if **LEQEMBI can cause a stroke**. The U.S. Food and Drug Administration (FDA) has issued a black box warning to highlight this significant safety risk.