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Cost-effectiveness analysis of lipegfilgrastim as primary prophylaxis in women with breast cancer in Australia: a modelled economic evaluation

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Abstract

Objectives

To examine the cost-effectiveness of lipegfilgrastim versus pegfilgrastim as primary prophylaxis in women with early stage breast cancer.

Methods

Two Markov models including a chemotherapy and a post-chemotherapy models were constructed with a time horizon of 12 weeks and 30 years, respectively. All the transition probabilities and utility weights were derived from clinical trials and/or published literatures. The costs populated in the chemotherapy model were extracted from Medicare, Pharmaceutical Benefit Scheme and the Independent Hospital Pricing Authority. No cost was considered in the post-chemotherapy model. Sensitivity analyses were performed to test the robustness of the results.

Results

From the first chemotherapy model, lipegfilgrastim was associated with fewer episodes of severe neutropenia (SN) (N = 142 per 1000 patients treated), febrile neutropenia (FN) (N = 29 per 1000 patients treated), infection (N = 17 per 1000 patients treated) and chemotherapy delayed (N = 170 per 1000 patients treated) and lower cost ($116.88 less per patient treated). The post-chemotherapy model indicated lipegfilgrastim led to higher gains in both life years (18.72 versus 18.61) and quality-adjusted life years (17.28 versus 17.18) in comparison to pegfilgrastim. Sensitivity analysis showed that the results from the chemotherapy model is very sensitive to the baseline risk of SN; while from the probabilistic sensitivity analysis, lipegfilgrastim was likely to be more cost-effective than pegfilgrastim based on two models.

Conclusions

Lipegfilgrastim was likely to be a cost-effective alternative to pegfilgrastim as primary prophylaxis. The sensitivity analysis showed the confidence interval for the cost and benefit outcomes overlapped to a great extent, suggesting an insignificant difference.

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Funding

This study was supported by an education fund from Teva Pharma Australia Pty Ltd. The funding source has no involvement in the study analysis, results interpretation and manuscript written-up.

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Correspondence to Lan Gao.

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Gao, L., Li, SC. Cost-effectiveness analysis of lipegfilgrastim as primary prophylaxis in women with breast cancer in Australia: a modelled economic evaluation. Breast Cancer 25, 671–680 (2018). https://doi.org/10.1007/s12282-018-0872-6

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  • DOI: https://doi.org/10.1007/s12282-018-0872-6

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