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Cost-Effectiveness Analysis of Tisagenlecleucel in the Treatment of Relapsed or Refractory B-Cell Acute Lymphoblastic Leukaemia in Children and Young Adults in Spain

Authors Ribera Santasusana JM, de Andrés Saldaña A, García-Muñoz N, Gostkorzewicz J, Martínez Llinàs D, Díaz de Heredia C

Received 11 December 2019

Accepted for publication 19 March 2020

Published 15 May 2020 Volume 2020:12 Pages 253—264

DOI https://doi.org/10.2147/CEOR.S241880

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Professor Samer Hamidi


Josep Maria Ribera Santasusana,1 Alejandra de Andrés Saldaña,2 Nuria García-Muñoz,3 Joana Gostkorzewicz,2 Diana Martínez Llinàs,3 Cristina Díaz de Heredia4

1Clinical Hematology Department, Catalan Institute of Oncology - Hospital Germans Trias i Pujol, Barcelona, Spain; 2Health Economics and Outcomes Research, Novartis Farmacéutica S.A., Madrid, Spain; 3Oblikue Consulting, S.L., Barcelona, Spain; 4Paediatric Oncology and Hematology Department - Hematopoietic Stem Cell Transplantation, Hospital Universitari Vall d’Hebron, Barcelona, Spain

Correspondence: Diana Martínez Llinàs
Oblikue Consulting, S.L., C/Comte d’Urgell, 240, 2-D, Barcelona 08036, Spain
Tel +34 93 252 1377
Fax +34 93 737 9984
Email diana.martinez@oblikue.com

Purpose: Tisagenlecleucel, a chimeric antigen receptor T-cell (CAR-T) therapy, is a promising alternative for the management of children and young adults with relapsed and refractory B-cell acute lymphoblastic leukemia (r/r ALL). The aim of this study was to determine whether treatment with tisagenlecleucel is a cost-effective intervention compared with salvage chemotherapy in paediatric and young adult patients with r/r ALL in Spain.
Materials and Methods: A partitioned survival model of monthly cycles with three health states was used (event-free survival, progressive/relapsed disease and death). A lifetime time horizon and the Spanish National Health System perspective were adopted. During the first 5 years, permanence in the different health states was determined according to the results in the clinical studies. In successive years, mortality tables of the Spanish general population adjusted by standardized mortality rate for survivors of childhood cancer were used. Clinical, economic, and quality of life parameters were drawn from clinical trials and the literature. Only direct health costs (pharmacological costs and the costs derived from health resource use) were included. The robustness of the results was evaluated in a sensitivity analysis.
Results: This cost-effectiveness analysis showed a greater benefit (10.10 and 8.97 life-years gained [LYGs] and quality-adjusted life-years [QALYs] gained, respectively) and a higher cost (€ 258,378.40) for tisagenlecleucel compared to salvage chemotherapy. The resulting incremental cost-effectiveness and cost-utility ratios were € 25,576.80 per LYG and € 28,818.52 per QALY gained, respectively. In the sensitivity analysis, all the results were below € 50,000/QALY.
Conclusion: Tisagenlecleucel would represent a cost-effective intervention for the treatment of children and young adults with r/r ALL in Spain.

Keywords: ALL, cost-effectiveness, tisagenlecleucel, acute lymphoblastic leukaemia, Spain, CAR-T

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