Adoption of lecanemab, a novel infusion remedy for Alzheimer’s illness (AD), has been disproportionately larger amongst sufferers who’re male, white, from city areas, and have larger socioeconomic standing, new analysis suggests.
The findings, printed within the peer-reviewed JAMA Community Openspotlight how sure populations usually tend to entry doubtlessly breakthrough new therapies than others, the researchers write.
Lecanemab was the primary disease-modifying remedy to obtain broad Medicare protection for AD in July 2023. Its approval and use stay controversial due to its restricted effectiveness in slowing cognitive decline and its excessive charge of significant unwanted side effects, comparable to mind bleeding. The drug is expensive, with a price ticket of $26,000 per 12 months and an estimated extra $7,000 per 12 months in ancillary prices.
“This drug is contributing to elevated Medicare spending for everybody, whereas solely being offered to a choose few,” stated Frank Zhou, a medical pupil on the David Geffen Faculty of Medication at UCLA, who led the examine. “These findings ought to alert policymakers that regardless of affected person help packages by the drug producer to enhance entry to the remedy, stark disparities in uptake have nonetheless occurred. As we put together for the doubtless future launch of extra efficacious and safer therapies on this area, we should assume tougher about how to make sure equitable entry to all sufferers who may benefit from and need such remedy.”
The researchers analyzed all Medicare fee-for-service beneficiaries who had acquired lecanemab between July 1, 2023 and March 31, 2024. They in contrast the demographics of those lecanemab customers with a broader inhabitants of sufferers presumably eligible for the drug by having recognized AD or gentle cognitive impairment (MCI). Demographic variables for comparability included age, intercourse, race and ethnicity, city/rural standing, and a proxy variable for socioeconomic standing, which was marked as “larger” if a affected person was neither eligible for the Half D low-income subsidy or for twin Medicare-Medicaid. Inside every demographic class, the uptake charge of lecanemab was calculated by dividing the variety of lecanemab customers by the variety of sufferers with AD or MCI.
Sufferers who used lecanemab have been extra more likely to be male, white, from city areas, and with larger socioeconomic standing than those that didn’t, the researchers discovered. Of the 1,725 lecanemab customers, 48.5% have been male, 90.5% have been White, 88.0% have been city residents, and 98.7% had larger socioeconomic standing. In distinction, amongst all 842,192 sufferers with recognized AD or MCI, solely 36.4% have been male, 82.0% have been White, 82.1% have been city residents, and 75.3% had larger socioeconomic standing.
Uptake charges of lecanemab have been a lot larger for sufferers who have been male (0.27% vs. 0.19% for feminine), white (0.23% vs. 0.09% for Asian/Pacific Islander, 0.04% for Black, 0.07% for Hispanic), from city areas (0.22% vs. 0.14% for rural areas), and with larger socioeconomic standing (0.27% vs. 0.01% for decrease socioeconomic standing).
We discovered that lecanemab adoption was 6-fold larger amongst white versus Black sufferers and 24-fold larger amongst these with larger versus decrease socioeconomic standing. Whereas these findings could also be associated to the drug’s annual value of $26,000 per 12 months and intensive testing and go to necessities, additionally they replicate a broader and recurring historic sample of inequities in entry to breakthrough therapies in the USA.”
Dr. John N. Mafi, affiliate professor-in-residence within the UCLA division of basic inside medication and well being providers analysis and the examine’s co-senior writer
A limitation to the examine was that knowledge for Medicare Benefit beneficiaries have been unavailable, the researchers write. As well as, sufferers with AD and MCI have been recognized by way of prognosis codes, which may misdiagnose or underestimate the prevalence of these situations, cannot distinguish between totally different severities of AD, and may’t account for different treatment eligibility standards.
“Lecanemab is a pricey remedy with marginal medical advantages and vital security dangers, and any resolution to begin utilizing the remedy ought to be fastidiously mentioned with one’s physician,” Zhou stated. “Given these vital points with the remedy, Medicare must also analyze real-world knowledge from its personal registry of lecanemab customers to resolve if continued protection of this remedy is suitable. That is particularly salient provided that there are doubtless higher makes use of for our restricted Medicare {dollars}, for instance caregiver take care of dementia sufferers.”
Examine co-authors are Dr. Utibe Essien and Dr. Catherine Sarkisian of UCLA, Jeffrey Souza and Dr. Bruce Landon of Harvard College, and Cheryl Damberg of RAND. The examine was primarily funded by grants from the Nationwide Institute on Growing older on the Nationwide Institutes of Well being.
Supply:
College of California – Los Angeles Well being Sciences
Journal reference:
Zhou, F. F., et al. (2025). Disparities in Early Lecanemab Uptake Amongst US Medicare Beneficiaries. JAMA Community Open. doi.org/10.1001/jamanetworkopen.2025.11711.