Treatment Patterns, Overall Survival, and Total Healthcare Costs of Advanced Merkel Cell Carcinoma in the USA

Lotte Steuten (), Vincent Garmo (), Hemant Phatak (), Sean D. Sullivan (), Paul Nghiem () and Scott D. Ramsey ()
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Lotte Steuten: Fred Hutchinson Cancer Research Center
Vincent Garmo: EMD Serono
Hemant Phatak: EMD Serono
Sean D. Sullivan: University of Washington
Paul Nghiem: University of Washington
Scott D. Ramsey: Fred Hutchinson Cancer Research Center

Applied Health Economics and Health Policy, 2019, vol. 17, issue 5, No 12, 733-740

Abstract: Abstract Background Merkel cell carcinoma (MCC) is a rare and aggressive type of cancer with poor outcomes. Objective To describe treatment patterns, overall survival, and healthcare costs associated with advanced MCC (aMCC) using data from Medicare enrollees who received an aMCC diagnosis in the USA States between 2006 and 2013. Methods Surveillance, Epidemiology, and End Results (SEER)-Medicare data from 2006 to 2013 were used to describe treatment patterns, 1- and 5-year overall survival, and total healthcare costs for the periods 12 months before aMCC diagnosis and 4–12 months afterward in patients aged ≥ 65 years. Results We identified 257 patients with an aMCC diagnosis, of whom 51% had stage IIIb disease and 49% had stage IV. Within 4 months after diagnosis, 84% of patients (n = 216) received treatment; 45% (n = 115) received surgery, 48% (n = 124) radiation therapy, and 31% (n = 80) chemotherapy. Second-line chemotherapy was administered in 33% of patients (n = 26) receiving first-line chemotherapy. Median overall survival was 27 months in patients whose aMCC was diagnosed at stage IIIb and 12 months in patients whose aMCC was diagnosed at stage IV. Median total 12-month direct healthcare costs were US$48,006 (25th–75th percentile range = US$30,594–US$69,797) per patient. Total costs were highest in patients receiving chemotherapy, either alone or combined with radiation and/or surgery (US$52,854; 25th–75th percentile range = US$34,473–US$71,987). Conclusion Most patients with aMCC received initial treatment, including surgery, radiation, and/or chemotherapy, and approximately one-third of those receiving chemotherapy received second-line chemotherapy. Total 12-month direct healthcare costs were highest in patients who received chemotherapy alone or combined with radiation and/or surgery. These poor survival results and high treatment costs highlight the need for effective new aMCC therapies.

Date: 2019
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DOI: 10.1007/s40258-019-00492-5

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