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# Medicare Coverage for Aduhelm Only in Studies
- URL: https://www.fdaweb.com/medicare-coverage-for-aduhelm-only-in-studies/
- Published: 2022-04-08T12:00:00.000Z
- Updated: 2026-09-14T17:39:53.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5151556

CMS has issued its long-awaited [National Coverage Determination](https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.cms.gov%2Fmedicare-coverage-database%2Fview%2Fncacal-decision-memo.aspx%3Fproposed%3DN%26ncaid%3D305&data=04%7C01%7CRaymond.Thorn%40cms.hhs.gov%7Cb6d2aacdb7ea451176e808da18bb7f29%7Cd58addea50534a808499ba4d944910df%7C0%7C0%7C637849490840989575%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=NlkqXQiSw%2FO1TKWzMcDk%2BakYRZFGyQqXfRs6PhvZUx8%3D&reserved=0&ref=fdaweb.com) (NCD) on Medicare coverage of only FDA traditionally approved monoclonal antibodies that target amyloid (or plaque) for treating Alzheimer’s disease, which is a significant blow to Biogen’s [controversial accelerated approval](https://www.fdaweb.com/uproar-greets-fdas-aduhelm-ok-for-alzheimers/) of Aduhelm (aducanumab). Additionally, CMS says that as part of its NCD it will provide “enhanced access and coverage for people with Medicare participating in CMS-approved studies, such as a data collection through routine clinical practice or registries.”