Clinical drug investigation · 2022
Cost-Utility Analysis of Pegaspargase for the Treatment of Acute Lymphoblastic Leukemia in Greece.
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Gourzoulidis George, Koulentaki Maria, Kattamis Antonis, Bouzani Maria, Giatra Chara, Chotzagiannoglou Vassiliki, Beletsi Alexandra, Kourlaba Georgia
Аннотация
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.
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.