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Niraparib maintenance in frontline management of ovarian cancer: a cost effectiveness analysis
  1. David A Barrington1,
  2. Crystal Tubbs2,
  3. Haller J Smith3,
  4. J Michael Straughn, Jr3,
  5. Leigha Senter4 and
  6. David E Cohn1
  1. 1Gynecologic Oncology, The Ohio State University, Columbus, Ohio, USA
  2. 2Pharmacy, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
  3. 3Obstetrics and Gynecology, Division of Gynecologic Oncology, University of Alabama at Birmingham HCOP, Birmingham, Alabama, USA
  4. 4Internal Medicine, Human Genetics, The Ohio State University, Columbus, Ohio, USA
  1. Correspondence to Dr David A Barrington, Gynecologic Oncology, The Ohio State University, Columbus, OH 43210, USA; david.barrington{at}osumc.edu

Abstract

Objectives Niraparib maintenance after frontline chemotherapy for advanced ovarian cancer extends progression free survival. The objective of this study was to determine the cost effectiveness of niraparib maintenance therapy in patients with newly diagnosed ovarian cancer.

Methods Decision analysis models compared the cost of observation versus niraparib maintenance following chemotherapy for five groups: all newly diagnosed ovarian cancer patients (overall), those with homologous recombination deficiency, those harboring BRCA mutations (BRCA), homologous recombination deficiency patients without BRCA mutations (homologous recombination deficiency non-BRCA), and non-homologous recombination deficiency patients. Drug costs were estimated using average wholesale prices. Progression free survival was estimated from published data and used to estimate projected overall survival. Incremental cost effectiveness ratios per quality adjusted life year were calculated. Sensitivity analyses varying the cost of niraparib were performed. The willingness-to-pay threshold was set at US$100 000 per quality adjusted life year saved.

Results For the overall group, the cost of observation was US$5.8 billion versus $20.5 billion for niraparib maintenance, with an incremental cost effectiveness ratio of $72 829. For the homologous recombination deficiency group, the observation cost was $3.0 billion versus $14.8 billion for niraparib maintenance (incremental cost effectiveness ratio $56 329). Incremental cost effectiveness ratios for the BRCA, homologous recombination deficiency non-BRCA, and non-homologous recombination deficiency groups were $58 348, $50 914, and $88 741, respectively. For the overall and homologous recombination deficiency groups, niraparib remained cost effective if projected overall survival was 2.2 and 1.5 times progression free survival, respectively.

Conclusions For patients with newly diagnosed ovarian cancer, maintenance therapy with niraparib was cost effective. Cost effectiveness was improved when analyzing those patients with homologous recombination deficiency and BRCA mutations. Efforts should continue to optimize poly-ADP-ribose polymerase utilization strategies.

  • ovarian cancer
  • ovarian neoplasms
  • gynecology
  • gynecologic surgical procedures
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Footnotes

  • Contributors Formulation of research question and literature review: DAB. Model design and selection of inputs: DAB. Clinical cost estimates: CT, LS, DAB, and DC. Manuscript drafting: DAB. Critical revisions: all authors. Project oversight and guidance: DC.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial, or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement Data sharing not applicable as no datasets generated and/or analyzed for this study. No data are available.

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