Journal
MEDICAL CARE
Volume 54, Issue 4, Pages 343-349Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MLR.0000000000000486
Keywords
lymphoma; economics; life-years; survival
Categories
Funding
- Genentech
- Amgen
- Celgene
- Onyx
- Sanofi
- Novartis
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Background: Rituximab was approved in 1997 and is regularly one of the largest drug expenditures for Medicare; however, its benefits and costs have not been estimated from a population perspective. Objectives: To estimate both the clinical and the economic outcomes of rituximab for its approved hematological uses at the population level. Research Design: Analyses using cancer registry incidence data from the Surveillance, Epidemiology, and End Results (SEER) program, and outcomes data from SEER data linked with Medicare administrative claims (SEER-Medicare data). These results were incorporated into an epidemiological simulation model of the population over time. Subjects: We modeled all United States patients from 1998 to 2013 diagnosed with diffuse large B-cell lymphoma, follicular lymphoma, or chronic lymphocytic leukemia. Measures: Using this model, we estimated the life-years saved, as well as their economic benefit, in the United States population. We also estimated the incremental cost of adding rituximab to chemotherapy. All economic inputs were based on Medicare reimbursed amounts inflated to 2013 dollars. Results: There were 279,704 cumulative life-years saved which were valued at $25.44 billion. The incremental direct medical cost of rituximab was estimated to be $8.92 billion, resulting in an incremental economic gain of $16.52 billion. Conclusions: These analyses, based on real-world evidence, show that the introduction of rituximab into clinical practice has produced a substantial number of incremental life-years. Importantly, the economic benefit of the life-years gained greatly exceeds the added costs of treatment.
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