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Retrospective claims analysis of best supportive care costs and survival in a US metastatic renal cell population

Authors Henk HJ, Chen C, Benedict A, Sullivan J, Teitelbaum A

Received 26 March 2013

Accepted for publication 20 May 2013

Published 9 July 2013 Volume 2013:5 Pages 347—354

DOI https://doi.org/10.2147/CEOR.S45756

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Henry J Henk,1 Connie Chen,2 Agnes Benedict,3 Jane Sullivan,1 April Teitelbaum1

1Optum, Eden Prairie, MN, USA; 2Pfizer Inc, New York, NY, USA; 3United BioSource Corporation, London, UK

Introduction: Survival and best supportive care (BSC) costs for patients with metastatic renal cell carcinoma (mRCC), after stopping therapy, are poorly characterized yet an important aspect of patient care. This study examined survival and costs associated with BSC after one or two lines of therapy (LOTs) for mRCC.
Methods: A retrospective cohort analysis used claims data from commercially insured or Medicare Advantage Prescription Drug (MAPD) plan enrollees of a large United States health plan with an index RCC diagnosis (ICD-9-CM 189.0) between January 1, 2007 and June 30, 2010; initiating any of the following therapies 30 days pre-index date through disenrollment from plan: sunitinib, temsirolimus, sorafenib, bevacizumab, everolimus, pazopanib, cytokines. LOT was identified using prescription fill and administration dates. Health care costs represent health plan- plus patient-paid amounts.
Results: The cohort (n = 274) was 73% male, with a mean age of 63.3 years (SD 11.1), with 80% commercially insured (20% MAPD), and 68% starting BSC following one LOT. Mean BSC duration was longer following one than two LOTs (223 [SD 260], 176 [SD 163] days). Median survival from the start of BSC was similar following one and two LOTs (126 and 118 days). Total BSC costs following one and two LOTs averaged US$50,188 (SD $96,984) and $37,295 (SD $51,102). Monthly costs for BSC following one and two LOTs ($10,151 and $10,566) were not substantially lower than costs while on treatment ($14,621 and $16,957). Inpatient hospital costs represented 47% and 49% following one and two LOTs, with ambulatory costs of approximately 36% following each LOT.
Conclusion: Our study found similar survival and monthly costs for BSC following either one or two LOTs, with almost half of the cost reflecting inpatient care. Compared to costs on treatment ($14,621 to $16,957), BSC costs can be considerable ($10,151 to $10,566).

Keywords: RCC, metastatic, supportive care, cost

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