A cost analysis of a cancer genetic service model in the UK
Background: Technological advances in DNA sequencing have made gene testing fast and more affordable. Evidence of cost-effectiveness of genetic service models is essential for successful translation, but remain sparse in the literature. In particular there is a lack of cost data related to genetic services. Methods: A detailed micro-costing of 28 pathways relating to breast and/or ovarian cancer and gene testing for the BRCA1 and BRCA2 genes (termed ′BRCA testing′) was carried out. These data were combined with patient-level data from a Royal Marsden Cancer Genetics Service audit during which BRCA testing was offered to individuals at ≥10% risk of having a mutation. Results: The average cost across all pathways was £2,222.68 (range £376.47- £13,531.24). The average pathway cost for a person with cancer was £1897.71 compared to £2,403.22 for a person without cancer. Of the women seen during audit period, 38% were affected with breast and/or ovarian cancer and 62% were unaffected but concerned about their family history. Conclusion: There is considerable variation in the costs of different gene testing pathways. Improved cost-efficiency could be achieved by increasing the proportion of cancer patients tested, because the pathway cost of an unaffected individual in whom testing has already been performed in a relative with cancer is considerably less.