Assessing the Equitable Use of Formulary Drug Tier Systems: Consequences for Geriatric Patient Population Access and Accessible Medication.

Abstract

Background: This study examines the implications of formulary drug tier systems on the accessibility and affordability of medications for the elderly/geriatric population within the New York metropolitan area. By systematically reviewing the Medicare insurance formularies and evaluating the most prescribed medicines with reported beneficial outcomes for ailments frequently experienced by the geriatric population, this research identifies disparities in drug tier placements and the cost of dispensing that may affect patient outcomes. The focus is on five prevalent conditions: Alzheimer's dementia, Chronic Obstructive Pulmonary Disease, Rheumatoid Arthritis, Ischemic Heart Disease, and Diabetes Mellitus Type 2 (T2DM). The findings aim to highlight the need for more equitable healthcare policies that consider the financial and medical needs of the elderly population. Methods: This study reviewed the formulary tier systems used by Medicare, the primary insurance provider for the elderly in New York City. The research focused on medications prescribed for Alzheimer's disease, COPD, rheumatoid arthritis, ischemic heart disease, and diabetes. Data on tier placements were extracted from Medicare Part D formularies, with a detailed examination of the criteria for tier assignment. The study identified the three most prescribed medications for each condition, using data from relevant health organizations and literature. An economic analysis was conducted to compare the costs associated with these medications, assessing the financial burden on patients. Results: The study revealed a prevalence of chronic conditions among New York City's elderly population. Medications commonly prescribed for these conditions were reviewed, with a focus on their placement within the Medicare Formulary Tier system and associated costs. The analysis highlighted substantial variations in cost and tier placement, affecting patient affordability and adherence. For example, Alzheimer's medications like galantamine and rivastigmine were found in higher tiers, leading to increased out-of-pocket expenses, while COPD treatments such as Symbicort and Trelegy Ellipta, although in preferred tiers, still imposed significant financial burdens. Rheumatoid arthritis drugs showed a wide cost range, with Humira in Tier 5 presenting the highest financial challenge. Similarly, ischemic heart disease and type 2 diabetes medications varied in affordability, with drugs like Eliquis and Steglatro positioned in higher tiers, significantly impacting patient costs and potential treatment adherence. Conclusion: Elderly patients in the United States, especially those dealing with chronic conditions are facing a substantial financial strain due to the increasing prices of prescription medications. Even with recent initiatives like the Inflation Reduction Act aimed at lowering expenses, the financial burden persists, causing issues with treatment adherence and negative health results. The results highlight the pressing requirement for more effective policy actions that support price transparency, promote the utilization of cost-effective generics, and deter the unwarranted classification of generic drugs in higher formulary tiers. It is crucial to handle these problems to guarantee fair access to medications for all elderly individuals, specifically those who qualify for both Medicare and Medicaid.