Abstract
Background
Midostaurin (MIDO) combined with standard chemotherapy was approved by the European Medicines Agency in 2017 for the treatment of adults with newly diagnosed FLT3-mutated acute myeloid leukemia (AML) based on results from the RATIFY trial.
Methods
A cost-effectiveness model was developed to compare MIDO and standard-of-care (SOC) to SOC alone in France. Per Haute Autorité de Santé (HAS) guidelines, a partitioned survival model with eight health states was used: diagnosis/induction, complete remission, relapse, hematopoietic stem cell transplantation (HSCT), HSCT recovery, post-HSCT recovery (stabilized after HSCT recovery), post-HSCT relapse, and mortality. A lifetime horizon was used beginning at diagnosis with a “cure model,”, which assumed natural mortality after trial cut-off. Utility values were obtained from a systematic literature review and included disutilities. Resource utilization was based on HAS clinical guidelines and a survey of French physicians and included drugs and administration, adverse events, routine medical care, HSCT, and end-of-life care costs.
Results
In RATIFY and after extrapolation, MIDO improved survival compared to SOC, translating into MIDO-treated patients gaining 1.12 life years (LYs) and 1.23 quality-adjusted life years (QALYs) versus SOC. The incremental cost-effectiveness ratio (ICER) for MIDO versus SOC was €68,781 per LY and €62,305 per QALY. Sensitivity analyses showed consistency with base case findings.
Conclusions
MIDO represents a clinically significant advancement in the management of newly diagnosed FLT3-mutated AML. In this analysis, MIDO add-on therapy showed gains in LYs and QALYs versus SOC alone and was found to be a cost-effective option at a €100,000 per QALY threshold for end-of-life treatment.
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Abbreviations
- AML:
-
Acute myeloid leukemia
- FLT3:
-
FMS-like tyrosine kinase 3
- SOC:
-
Standard of care
- HSCT:
-
Hematopoietic stem cell transplantation
- MIDO:
-
Midostaurin
- EQ-5D:
-
EuroQol 5 dimensions
- QLQ-30:
-
EORTC core quality of life questionnaire
- CI:
-
Confidence interval
- QALY:
-
Quality-adjusted life year
- CR:
-
Complete remission
- HRQoL:
-
Health-related quality of life
- ICER:
-
Incremental cost-effectiveness ratio
- OS:
-
Overall survival
- CE:
-
Cost-effectiveness
- HR:
-
Hazard ratio
- EFS:
-
Event-free survival
- NOS:
-
Not otherwise specified
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Acknowledgements
Some authors contributed to an analysis of the cost-effectiveness of midostaurin from a United Kingdom perspective, published in Cost-Effectiveness and Resource Allocation in October of 2018 [1]. Mapping of utilities used in this analysis was described in full in a 2018 study by Forsythe et al. [2]. We thank Jaclyn Hearnden for her contributions to writing and editing the manuscripts.
Funding
This study was funded by Novartis Pharmaceuticals.
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Clemence Cariou, Christian Recher, Patricia Brandt, and Anne-Sandrine Blanc are employees of Novartis.
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Tremblay, G., Cariou, C., Recher, C. et al. Cost-effectiveness of midostaurin in the treatment of newly diagnosed FLT3-mutated acute myeloid leukemia in France. Eur J Health Econ 21, 543–555 (2020). https://doi.org/10.1007/s10198-019-01149-9
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DOI: https://doi.org/10.1007/s10198-019-01149-9
Keywords
- Acute myeloid leukemia
- FMS-like tyrosine kinase 3
- Cost-effectiveness analysis
- Life years
- Quality-adjusted life years
- Incremental cost-effectiveness ratio