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Journal of Neuro-Oncology

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01-07-2019 | Glioblastoma | Clinical Study

Cost-effectiveness of tumor-treating fields added to maintenance temozolomide in patients with glioblastoma: an updated evaluation using a partitioned survival model

Authors: Martin Connock, Peter Auguste, Claude Dussart, Jacques Guyotat, Xavier Armoiry

Published in: Journal of Neuro-Oncology | Issue 3/2019

Abstract

Purpose

A first cost-effectiveness analysis has raised a strong concern regarding the cost of tumor treatment fields (TTF) added to maintenance temozolomide for patients with glioblastoma. This evaluation was based on effectiveness outcomes from an interim analysis of the pivotal trial, moreover it used a “standard” Markov model. Our objective was to update the cost-effectiveness evaluation using the more flexible potential of the “partitioned survival” model design and using the latest effectiveness data.

Methods

We developed the model with three mutually exclusive health states: stable disease, progressive disease, and dead. Good fit parametric models were developed for overall survival and progression free survival and these generated clinically plausible extrapolations beyond the observed data. We adopted the perspective of the French national health insurance and used a 20-year time horizon. Results were expressed as cost/life-years (LY) gained (LYG).

Results

The base case model generated incremental benefit of 0.604 LY at a cost of €453,848 which, after 4% annual discounting of benefits and costs, yielded an incremental cost effectiveness ratio (ICER) of €510,273/LYG. Using sensitivity analyses and bootstrapping methods results were found to be relatively robust and were only sensitive to TTF device costs and the modelling of overall survival. To achieve an ICER below €100,000/LYG would require a reduction in TTF device cost of approximately 85%.

Conclusions

Using a different type of model and updated survival outcomes, our results show TTF remains an intervention that is not cost-effective, which greatly restrains its diffusion to potentially eligible patients.

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Title: Cost-effectiveness of tumor-treating fields added to maintenance temozolomide in patients with glioblastoma: an updated evaluation using a partitioned survival model
Authors: Martin Connock
Peter Auguste
Claude Dussart
Jacques Guyotat
Xavier Armoiry
Publication date: 01-07-2019
Publisher: Springer US
Keywords: Glioblastoma
Glioblastoma
Glioblastoma
Published in: Journal of Neuro-Oncology / Issue 3/2019
Print ISSN: 0167-594X
Electronic ISSN: 1573-7373
DOI: https://doi.org/10.1007/s11060-019-03197-w

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Cost-effectiveness of tumor-treating fields added to maintenance temozolomide in patients with glioblastoma: an updated evaluation using a partitioned survival model

Abstract

Purpose

Methods

Results

Conclusions

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Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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