Abstract
Objective
To estimate the cost-effectiveness and value of information of cabozantinib compared to nivolumab in advanced renal cell carcinoma (RCC) patients, who previously failed treatment from a societal perspective in South Korea.
Methods
A partitioned survival model was used to evaluate the incremental cost-utility ratio (ICUR) of cabozantinib versus nivolumab. Overall survival (OS) and progression-free survival (PFS) curves were obtained from a network meta-analysis that included METEOR and CheckMate 025 trial results. Utility values for health states and adverse events were estimated based on the EQ-5D-5L data of METEOR trial with a Korean-specific tariff. Costs were estimated by a micro-costing approach using healthcare claims data and expert consultation. The impact of uncertainties in the model were explored by scenario analyses, and deterministic and probabilistic sensitivity analyses. The expected value of perfect information (EVPI) was estimated to assess the value of future research to decrease decision uncertainty.
Results
Compared to nivolumab, cabozantinib was associated with improved OS, PFS, and quality-adjusted life-years (QALYs) at greater cost. The ICUR was $34,445 per QALY. In sensitivity analysis, drug costs had the greatest influence on the ICUR. Cabozantinib had a 68.0% probability of being cost-effective at a threshold of 2 times gross domestic product (GDP) per capita. The population EVPI was $82.6 million at 2 GDP threshold.
Conclusions
Cabozantinib was found to be cost-effective for advanced RCC patients after failure of prior therapy at a 2 GDP threshold. Future research that costs less than the estimated population EVPI would be worth considering for a comparison of cabozantinib and nivolumab.
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Acknowledgements
This research was funded by Ipsen Korea. This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korea government (Ministry of Science and ICT) (Grant number: NRF-2020R1F1A1069526). We used the Health Insurance Review and Assessment Service-National Patient Sample data 2016 (HIRA-NPS-2016-0092); however, we declare that the results do not reflect the positions of either the Health Insurance Review and Assessment Service or the Ministry of Health and Welfare in Korea.
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This work was supported by the Ipsen Korea. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT) (grant number: NRF-2020R1F1A1069526).
Conflict of interest
Suh, H Kim, S Kim, and Han received research grants from Korea Health Industry Development Institute, Ministry of Food and Drug Safety, Ministry of Health and Welfare, National Research Foundation, Abbvie Korea, Amgen Inc, Amgen Korea, Handok-Teva, Ipsen Korea, and Pfizer Korea.
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This study was approved by the Institutional Review Board of Pusan National University (PNU IRB/2019_124_HR).
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All authors contributed to the study conception and design, data collection, data analysis, and interpretation of results. The first draft of the manuscript was written by Siin Kim and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Most of the data generated or analyzed during this study are included in this published article and its supplementary information files. The cost-effectiveness model that supports the findings of this study is available from the corresponding author upon reasonable request and with permission of Ipsen Korea.
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Kim, S., Han, S., Kim, H. et al. Cost-Effectiveness and Value of Information of Cabozantinib Treatment for Patients with Advanced Renal Cell Carcinoma After Failure of Prior Therapy in South Korea. Appl Health Econ Health Policy 19, 545–555 (2021). https://doi.org/10.1007/s40258-021-00640-w
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DOI: https://doi.org/10.1007/s40258-021-00640-w