6527 Background: A randomized phase III trial of sorafenib vs. placebo in hepatocellular carcinoma (SHARP study) demonstrated that sorafenib significantly prolonged overall survival (OS) compared to placebo (median OS = 324 days [95% CI: 286–405] vs. 241 days [95% CI: 206–276]; p<0.001). Sorafenib is the first and only systemic agent to demonstrate survival benefit over the past 30 years. Given the clinical significance of these results, the objective of this study was to demonstrate the cost-effectiveness associated with sorafenib compared to best supportive care (BSC) from the US third party payer perspective. Methods: A Markov model was developed to evaluate the cost-effectiveness of sorafenib vs. BSC. The model followed survival and time to progression (TTP) in monthly cycles based on the extrapolation of patient level trial data over a patient's lifetime. Health effects were expressed as life years gained (LYG). Resource use included drugs, physician visits, laboratory tests, scans, hospitalizations and treatment of adverse events. Unit costs were gathered from diagnosis related groupings, Medicare charges and the Red Book and were expressed in 2007 US Dollars. Costs and effects were evaluated over a lifetime and discounted at 3%. Results were presented as incremental cost/LYG. Deterministic and probabilistic sensitivity analyses were conducted. Results: LYG was longer for sorafenib compared to BSC (1.59±0.18 vs. 1.06±0.10 LYG/patient for sorafenib and BSC, respectively). The lifetime total costs were $41,782±3,292 for sorafenib and $8,161±1,408 for BSC. The results indicated an incremental cost-effectiveness ratio of $64,301/LYG. The key drivers of the model results were OS, TTP and BSC costs after progression. Sensitivity analyses results showed that the model was robust. Conclusions: The economic evaluation indicates that sorafenib is cost-effective as compared to BSC, with cost-effectiveness ratios within the established threshold that society is willing to pay (i.e. $50,000- $100,000). Author Disclosure Employment or Leadership Consultant or Advisory Role Stock Ownership Honoraria Research Expert Testimony Other Remuneration Bayer Bayer
While essential for cost-effectiveness analyses, there are no current resource use and cost data available for advanced hepatocellular carcinoma (HCC) and selective internal radiation therapy (SIRT). The study aims to assess current resource use and costs in HCC and for SIRT compared to historical survey data.To address this data gap, resource use was elicited via surveys and interviews with medical professionals experienced with HCC and SIRT in the United Kingdom. Unit costs were from publicly available databases. Resource use and costs were estimated and compared to prior surveys.From eleven responses, pre-progression costs for SIRT and systemic therapy were £256.77 and £292.27/month, respectively. One-off progression and post-progression costs were £209.98 and £522.84/month. Monthly costs were 54%-79% lower than in previous surveys, due to reduction in hospitalizations and funded social care. Furthermore, substantial differences in resource use associated with SIRT between clinical practice and clinical trials were found. In conclusion, increased availability and familiarity with systemic treatments has led to important changes in HCC care and SIRT administration. The uncertainty from the use of expert opinion and the limited number of hospitals with SIRT experience can be addressed with future research using large databases, registries.