Abstract
Background and Objective
Acute lymphoblastic leukemia (ALL) is an acute, rapidly progressing and life-threatening form of cancer involving immature lymphocytes called lymphoblasts. ALL is the most common subtype of leukemia in children and adolescents. The aim of the present study was to assess the cost-utility of pegaspargase versus l-asparaginase, both followed by Erwinase in the therapy sequence, as a treatment option for pediatric, adolescent, and adult patients with ALL in Greece.
Methods
A published cost-utility model comprising a decision tree and a state-transition Markov model was adapted from a public payer perspective to compare a pegaspargase treatment sequence with an l-asparaginase sequence. Efficacy and safety data, as well as utility values, were extracted from the published literature. Direct costs pertaining to drug acquisition, administration, and management of hypersensitivity were considered in the analysis (€2020). Model-extrapolated outcomes included quality-adjusted life-years (QALYs), costs, and incremental cost-effectiveness ratios (ICER). All future outcomes were discounted at 3.5% per annum. Sensitivity analyses were used to explore the impact of changing input data.
Results
The analysis showed that the pegaspargase sequence was estimated to produce 0.05 additional QALYs (18.12 vs. 18.07) and lower cost of − €1698 compared with l-asparaginase, indicating that the pegaspargase sequence was a dominant treatment strategy (improved outcomes with reduced costs) compared with l-asparaginase. Deterministic sensitivity analysis confirmed the cost-effective profile of pegaspargase. At the defined willingness-to-pay threshold of €54,000/QALY gained, probabilistic sensitivity analysis showed that pegaspargase had a 100% probability of being cost effective relative to the l-asparaginase sequence.
Conclusion
The pegaspargase sequence was found to be less costly and more effective (in terms of QALYs) in relation to the l-asparaginase sequence, representing a dominant strategic option for Greek public payers in ALL.
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Change history
29 December 2022
A Correction to this paper has been published: https://doi.org/10.1007/s40261-022-01236-5
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The authors would like to thank Servier Hellas for funding this research.
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Econcare LP received research grant funding from Servier Hellas. AB and VC were Servier Hellas employees at the time of this study. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript, apart from those disclosed.
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This study was sponsored by Servier Hellas. The study sponsor had no interference in the study design, data collection, or writing of the manuscript.
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This study was an economic evaluation analysis and does not involve human subjects. Input data including human material or human data derived from other published studies was performed with the approval of an appropriate Ethics Committee; therefore, ethics approval was not required for the performance of this cost-effectiveness analysis.
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GG and MK conducted the analyses, collected the data, and interpreted the results. GG wrote the manuscript. AK, MB, and CG were the local clinical experts who provided local resource utilization data and contributed to data validation and interpretation of the results. VC, AB, and GK contributed to interpretation of the results and manuscript writing. All authors reviewed and approved the final version of the manuscript.
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Gourzoulidis, G., Koulentaki, M., Kattamis, A. et al. Cost-Utility Analysis of Pegaspargase for the Treatment of Acute Lymphoblastic Leukemia in Greece. Clin Drug Investig 42, 999–1008 (2022). https://doi.org/10.1007/s40261-022-01207-w
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DOI: https://doi.org/10.1007/s40261-022-01207-w