Introduction
Alzheimer’s disease, a devastating neurodegenerative disorder, has long evaded effective treatments. The recent approval of Leqembi (lecanemab) has reignited hope for patients and families, but it’s also sparked intense debate around its clinical benefits, high cost, and broader implications.
As discussions intensify in medical circles, policy boards, and patient advocacy groups, I find myself captivated by the intersection of science, ethics, and economics at play. Leqembi is positioned as a breakthrough—but at what price, and for whom? In this article, I’ll illuminate the facts, divergent perspectives, and questions raised by this pivotal moment.
What's Happening
Leqembi, co-developed by Eisai and Biogen, became one of the first drugs approved by the FDA to target the underlying biology of Alzheimer’s instead of just managing symptoms. By targeting amyloid plaques, it aims to slow cognitive decline in early Alzheimer's patients.
The FDA granted traditional approval in July 2023, based on clinical trial evidence suggesting Leqembi modestly slowed disease progression over 18 months compared to placebo. The drug’s annual list price is approximately $26,500 per patient—a figure drawing scrutiny from patients, physicians, and policymakers alike.
- Leqembi is administered intravenously every two weeks and requires close MRI monitoring due to risk of brain swelling or bleeding.
- Medicare covers the drug for eligible patients who enroll in a registry, but there are still significant out-of-pocket costs for many.
- While the Alzheimer’s Association and some clinicians hail it as a milestone, others warn about limited efficacy, safety concerns, and strains on the healthcare system.
- Multiple health agencies and watchdog organizations, like the Institute for Clinical and Economic Review (ICER), have questioned whether Leqembi delivers enough value for its high price tag.
This moment reflects not just a new treatment option, but also a heated debate over what constitutes meaningful progress in Alzheimer’s care.
Why This Matters
Roughly 6 million Americans live with Alzheimer’s, a number projected to grow. For them and their families, even incremental progress matters profoundly. Leqembi’s approval symbolizes hope—but also highlights the disparities of access and affordability within medicine.
The stakes go beyond individual patients. If expensive drugs like Leqembi become widely used, Medicare, taxpayers, and private insurers could face billions in new costs. This could change the economics of Alzheimer’s care, influencing which treatments get developed, approved, and funded in the years ahead.
Different Perspectives
Patient Advocates
Many patients and advocacy groups view Leqembi’s approval as a hard-earned victory. They welcome any option that offers hope of slowing decline, seeing it as a step toward more robust future treatments.




