Abstract
Clinical trial EMR 62202-006 demonstrates prolonged median locoregional control (24.4 vs. 14.9 months), progression-free survival (17.1 vs. 12.4 months) and overall survival (49.0 vs. 29.3 months) for patients who receive cetuximab added to the comparator radiotherapy for locally advanced squamous cell carcinoma of the head and neck (LA SCCHN). In the Netherlands, hospitals receive reimbursement for cetuximab conditional on cost-effectiveness in daily practice. To estimate the real-world incremental cost per quality adjusted life-year (QALY) gained for radiotherapy + cetuximab over radiotherapy alone in first line treatment of LA SCCHN, a Markov model is constructed with health states “alive without progression”, “alive following progression” and “death”. Transition probabilities per month are estimated from clinical trial data and retrospectively collected real-world data from two Dutch head and neck cancer treatment centres (2007–2010, n = 141). 5-year, 10-year and lifetime horizons are used, without and with discounting (4 % costs, 1.5 % effects) to calculate incremental cost-effectiveness ratios. Two scenarios explore different assumptions on prognosis of real-world versus trial patients. Adding cetuximab to radiotherapy results in increased costs and health gains in both scenarios and across each of the time horizons. Incremental costs per QALY gained range between €14,624 and €38,543 in the base-case. For a willingness to pay of €80,000 per QALY, the acceptability curves for the different scenarios show probabilities between 0.76 and 0.87 of radiotherapy + cetuximab being cost-effective compared to radiotherapy alone. Current results show the combined treatment of radiotherapy + cetuximab to be a cost-effective treatment option for patients with LA SCCHN.
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Acknowledgments
This study was performed by the Institute for Medical Technology Assessment (iMTA, Erasmus University) and was financially supported by Merck BV, the Marketing Authorisation Holder of Erbitux (cetuximab). NvdL, CvG and CP were responsible for study design. NvdL collected real-world data. NvdL and CvG developed the model and conducted analyses. NvdL and CP developed the manuscript, supervised by CvG and CU-dG. JB provided medical expertise. MV provided expertise on the quality of life aspect of the study. CvG is currently employed by GlaxoSmithKline, who have no involvement in this research. This research was conducted while CvG was employed by iMTA, Erasmus University. CP is employed by Merck BV. The views expressed in this article are those of the authors. All authors read, edited and approved the final manuscript. CU-dG and NvdL are the overall guarantors for the content.
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The study was approved by the medical ethics committee of VU Medical Center. For the patient chart review, no informed consent was required.
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van der Linden, N., van Gils, C.W.M., Pescott, C.P. et al. Real-world cost-effectiveness of cetuximab in locally advanced squamous cell carcinoma of the head and neck. Eur Arch Otorhinolaryngol 272, 2007–2016 (2015). https://doi.org/10.1007/s00405-014-3106-3
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DOI: https://doi.org/10.1007/s00405-014-3106-3