Clinical and Scientific Challenges to Effectiveness Studies Under Coverage with Evidence Development in Alzheimer's Disease

Neurol Ther. 2023 Jun;12(3):721-726. doi: 10.1007/s40120-023-00462-z. Epub 2023 Mar 18.

Abstract

The Centers for Medicare and Medicaid Services (CMS) has recently issued a national coverage determination for US Food and Drug Administration (FDA)-approved anti-amyloid monoclonal antibodies (mAbs) for the treatment of Alzheimer's disease (AD) under coverage with evidence development (CED). CED schemes are complex, costly, and challenging, and often fail to achieve intended objectives because of administrative and implementation issues. AD is a heterogeneous, progressive neurodegenerative disorder with complex care pathway that additionally presents scientific challenges related to the choice of study design and methods used in evaluating CED schemes. These challenges are herein discussed. Clinical findings from the US Veterans Affairs healthcare system help inform our discussion of specific challenges to CED-required effectiveness studies in AD.

Keywords: Alzheimer’s disease; Anti-amyloid monoclonal antibodies; Centers for Medicare & Medicaid Services; Coverage with evidence development; Disease-modifying treatment; Mild cognitive impairment; National coverage determination.