To evaluate the cost-effectiveness of rezivertinib versus gefitinib as first-line treatment for epidermal growth factor receptor (EGFR) mutation-positive advanced non-small cell lung cancer (NSCLC) from the perspective of the Chinese healthcare system.
METHODS
2
A Markov model was constructed based on the REZOR trial data, with a cycle length of 3 weeks and a study duration of 5 years. Both costs and health outcomes were discounted at an annual rate of 5%. A cost-utility analysis was conducted using 3 times China’s 2024 per capita gross domestic product as the willingness-to-pay (WTP) threshold. The economic differences between the rezivertinib regimen versus the gefitinib regimen were evaluated using the incremental cost-effectiveness ratio (ICER) and incremental net monetary benefit (INMB). Sensitivity and scenario analyses were performed to verify the robustness of the model.
RESULTS
2
Compared to the gefitinib regimen, the rezivertinib regimen saved 225 310.47 yuan and gained an additional 0.57 quality-adjusted life years (QALYs), resulting in an ICER of -395 562.80 yuan/QALY, which was much lower than the WTP threshold of this study, indicating that rezivertinib had an absolute economic advantage. The INMB analysis (389 041.26 yuan) further validated this conclusion. One-way and probabilistic sensitivity analyses confirmed the robustness of the model. Scenario analysis, incorporating a 15% reduction in drug prices and adjustments to the utility values for progression free survival and progression disease, yielded consistent results with the base case analysis.
CONCLUSIONS
2
Compared to gefitinib, rezivertinib as a first-line treatment for
EGFR
mutation-positive advanced NSCLC has an absolute economic advantage.
关键词
Keywords
references
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