Government Drug Expenditures

Biosimilars provide competition for biologics, which account for a significant and growing portion of Medicare Part B drug spending. This report evaluates the current state of biosimilar competition in Medicare Part B and explores opportunities to achieve further savings.

In November 2024, the Centers for Medicare & Medicaid Services (CMS) released the Medicare Program; Contract Year 2026 Policy and Technical Changes to the Medicare Advantage Program, Medicare Prescription Drug Benefit Program, Medicare Cost Plan Program, and Programs of All-Inclusive Care for the Elderly proposed rule.

The Inflation Reduction Act (IRA) makes improvements to Medicare to increase accessibility and affordability of prescription drugs for Medicare enrollees, reduce the rate of growth in Medicare drug spending, and improve the financial sustainability of the Medicare program.

The Inflation Reduction Act (IRA) is helping people with Medicare, including nearly 30 million women enrolled in Part D. Our review shows that, in 2020, about 733,000 women enrolled in Part D and B would have benefited from the IRA’s $35 insulin cap and, in 2021, about 2 million women would not have had any out-of-pocket costs for recommended adult vaccines covered by Part D.

In 2022, 43.3 million Medicare Part D enrollees (82 percent) filled 1.1 billion prescriptions for generic prescription drugs. While most enrollees filled at least one prescription for $2 or less, most (54 percent) paid more than $2 for at least one generic drug. Over 6 million enrollees filled at least one prescription for over $20.

Introduction

The U.S. Department of Health and Human Services (HHS), Office of the Assistant Secretary for Planning and Evaluation (ASPE) released new research on spending and utilization trends of Medicare Part B drugs, drugs administered in physicians' office or hospital outpatient departments rather than being purchased at the pharmacy counter or by mail order.

Prescription drug price increases create affordability challenges for patients and for the government. This report tracks drug price changes from 2016-2022. There were 1,216 products whose price increases during the twelve-month period from July 2021 to July 2022 exceeded the inflation rate of 8.5 percent for that time period. The average price increase for these drugs was 31.6 percent.

Medicare covers prescription drugs provided during inpatient hospital and skilled nursing facility stays through Part A, retail prescription drugs through Part D, and drugs provided in physicians’ offices and hospital outpatient departments through Part B. Over the 2006-17 period, Medicare FFS Part B drugs spending per enrollee grew at 8.1 percent annually.