期刊
EXPERT REVIEW OF HEMATOLOGY
卷 10, 期 12, 页码 1107-1119出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17474086.2017.1391088
关键词
Carfilzomib; bortezomib; multiple myeloma; relapsed; refractory; cost effectiveness; ENDEAVOR; survival; progression-free survival
类别
资金
- Amgen, Inc., Thousand Oaks, CA, USA
Background: We assessed the economic value of carfilzomib 56mg/m(2) and dexamethasone (Kd56) vs. bortezomib and dexamethasone (Vd) for relapsed/refractory multiple myeloma (R/RMM) using ENDEAVOR trial results.Methods: Cost-effectiveness of Kd56 vs. Vd was assessed using a partitioned survival model by estimating progression-free survival, overall survival, and direct costs over a lifetime horizon. Surveillance Epidemiology and End Results (SEER) survival data were extrapolated after matching registry and ENDEAVOR patients. Utilities were sourced from the literature and mapped from patient-reported quality of life in ENDEAVOR to estimate quality-adjusted life-years (QALYs) from life-years (LYs).Results: The model predicted an average gain of 1.66 LYs and 1.50 QALYs with Kd56 vs. Vd, and lifetime additional costs of $182,699, resulting in an incremental cost-effectiveness ratio (ICER) of $121,828/QALY gained. The ICER was $114,793/QALY in patients with 1 prior treatment; $99,263/QALY in those not transplanted, and <$150,000/QALY up to an 85% discount in bortezomib price.Conclusions: Kd56 is cost-effective for patients with R/RMM at a willingness-to-pay threshold of $150,000/QALY. Trial data in the model may limit generalizability; however, SEER registry data mitigates this challenge. Kd56 provides additional value in key subgroups, and remains cost-effective after steep comparator discounts.
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