Cost-effectiveness of osimertinib versus standard EGFR-TKI as first-line treatment for locally advanced or metastatic EGFR mutation-positive non-small cell lung cancer in Australia.
Objectives: To assess the cost-effectiveness of osimertinib versus standard epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs), gefitinib or erlotinib, as first-line treatment for patients with locally advanced or metastatic EGFR mutation-positive non-small cell lung cancer in Australia from a healthcare system perspective.Methods: A partitioned survival model comprising three mutually exclusive health states with a five-year time horizon was developed. Model inputs were sourced from the pivotal trial (FLAURA) and published literature. Incremental cost-effectiveness ratios (ICERs), in terms of cost per quality-adjusted life-year (QALY) gained and cost per life-year (LY) gained, were calculated. Uncertainty of the results was assessed using deterministic and probabilistic sensitivity analyses.Results: Compared with standard EGFR-TKIs, osimertinib was associated with a higher incremental cost of A$118,502, and an incremental benefit of 0.274 QALYs and 0.313 LYs. The ICER was estimated to be A$432,197/QALY gained and A$378,157/LY gained. The base-case ICER was most sensitive to changes in cost of first-line osimertinib, time horizon, and choice of overall survival data (interim versus final analysis).Conclusions: At a willingness-to-pay threshold of A$50,000/QALY, first-line osimertinib is not cost-effective compared with standard EGFR-TKIs in Australia based on the current published price. To achieve acceptable cost-effectiveness, the cost of first-line osimertinib needs to be reduced by at least 68.4%.
['Khoo|Terence|T|https://orcid.org/0000-0002-6765-7889', 'Gao|Lan|L|https://orcid.org/0000-0001-9734-1140']
D000178:Acrylamides D000814:Aniline Compounds D001315:Australia D002289:Carcinoma, Non-Small-Cell Lung D003362:Cost-Benefit Analysis D016527:Drug Costs D066246:ErbB Receptors D000069347:Erlotinib Hydrochloride D000077156:Gefitinib D006801:Humans D008175:Lung Neoplasms D008962:Models, Theoretical D009154:Mutation D047428:Protein Kinase Inhibitors D019057:Quality-Adjusted Life Years
cost-effectiveness Osimertinib non-small cell lung cancer EGFR mutation economic evaluation