Improved cost-effectiveness of short-course radiotherapy in elderly and/or frail patients with glioblastoma

Publication date: Available online 13 February 2018
Source:Radiotherapy and Oncology
Author(s): Sunita Ghosh, Sarah Baker, Douglas Guedes de Castro, Lucyna Kepka, Narendra Kumar, Valery Sinaika, Juliana Matiello, Darejan Lomidze, Katarzyna Dyttus-Cebulok, Eduardo Rosenblatt, Elena Fidarova, Wilson Roa
Background and purposeShort-course radiotherapy (25 Gy in five fractions) was recently shown in a randomized phase III trial to be non-inferior to 40 Gy in 15 fractions in elderly and/or frail patients with glioblastoma multiforme. This study compared the cost-effectiveness of the two regimens.Material and methodsThe direct unit costs of imaging, radiotherapy (RT), and dexamethasone were collected from the five primary contributing countries to the trial, constituting the data of 88% of all patients. Effectiveness was measured by the restricted mean overall survival (RMOS) and progression free survival (RMPFS). The incremental cost-effectiveness ratio (ICER) was calculated. Indirect costs were also estimated for comparison.ResultsThe median OSs for the short-course and commonly used RTs were 8.2 (95% confidence interval [CI] 6.1–10.3) and 7.7 (95% CI 5.5–9.9) months, respectively (log rank p = 0.340). Median PFSs were also not different (p = 0.686). The differences in the RMOS and the ICER, however, were +0.11 life-years and -$3062 United States dollars (USD) per life-year gained, respectively. The differences in the RMPFS and the ICER were +0.02 PFS and -$17,693 USD, respectively.ConclusionThe ICER of -$3062 per life-year gained and -$17,693 per PFS gained indicates that the short-course RT is less costly compared to the longer RT regimen.



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