Leqembi and Kisunla are now covered by Medicare, though many private insurers don’t think the drug’s benefits are worth it and aren’t covering it. Leqembi costs $26,500 on average. For patients on Kisunla, the total cost to a patient depends on how long they stay on it — as little as $12,522 for six months, or as much as $48,896 for a year and a half. Participants in a clinical trial may receive access to Kisunla and Leqembi free of charge.