An economic evaluation of nivolumab for the treatment of squamous and non-squamous NSCLC in the Swedish setting

Authors

  • Caitlin Smare PAREXEL International, London, UK
  • Meena Venkatachalam PAREXEL International, London, UK
  • Emma Medin PAREXEL International, Stockholm, Sweden
  • Marcus Hultberg PAREXEL International, Stockholm, Sweden
  • John R Penrod Bristol-Myers Squibb, Princeton, NJ, USA
  • Nadine Hertel Bristol-Myers Squibb, London, UK
  • Michael Lees Bristol-Myers Squibb, Paris, France
  • Christoffer Holmberg Bristol-Myers Squibb, Stockholm, Sweden

DOI:

https://doi.org/10.5617/njhe.5453

Keywords:

nivolumab, NSCLC, Sweden, cost-effectiveness analysis, programmed death-1 inhibitor

Abstract

The cost-effectiveness of nivolumab versus docetaxel in patients with previously treated non-small cell lung cancer (NSCLC) was estimated in a cohort-based, partitioned survival model with three health states (progression-free, progressed disease, and death) and a time horizon of 15 years. The base-case model was developed using extrapolations of progression-free survival (PFS) and overall survival (OS) data from the CheckMate 017 and 057 randomized trials, and 2015 Swedish unit costs. An annual discount rate of 3% was applied. Base-case time-on-treatment was based on PFS (CheckMate 017) or time-to-treatment discontinuation (CheckMate 057), depending on whether PFS was a close proxy for time-on-treatment. Data extrapolations from CheckMate 017 and 057 were validated against external trial and registry data. Model utilities were derived from CheckMate 017 and 057 with UK weights (base-case) and Swedish weights (scenario analysis). Uncertainty was assessed using sensitivity analyses adjusted for clinical, utility, and cost data. Outcomes included incremental cost per quality-adjusted life-year (QALY) gained. The base-case model showed that nivolumab was associated with QALY gains of 0.72 (squamous) and 0.81 (non-squamous) versus docetaxel at an incremental cost of 734,573 SEK (€69,174) and 999,032 SEK (€94,078), respectively. This resulted in an incremental cost per QALY gained for nivolumab versus docetaxel of 1,013,697 SEK (€95,459) and 1,231,664 SEK (€115,985) in squamous and non-squamous NSCLC, respectively. Scenario analysis utilizing Swedish utility weights resulted in slightly lower incremental cost per QALY gained of 855,505 SEK (€80,562) (squamous) and 1,165,401 SEK (€109,745) (non-squamous). Deterministic sensitivity analysis showed that utility weights, treatment costs, discount rates, and body weight were key drivers of cost-effectiveness. Overall, the model showed that cost-effectiveness was driven by nivolumab price, but nivolumab remained cost-effective in squamous and non-squamous NSCLC in accordance with previous appraisals by the Dental and Pharmaceutical Benefits Agency (Tandvårds- och läkemedelsförmånsverket) and New Therapies Council in Sweden.

Published: Online December 2019.

Downloads

Additional Files

Published

2019-12-31

Issue

Vol. 7 No. 1 (2019): Nordic Journal of Health Economics

Section

Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
     
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
     
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.