Abstract
Cemiplimab combined with chemotherapy has emerged as a promising treatment option for advanced non-small cell lung cancer (NSCLC). Accordingly, this study has been conducted to evaluate the cost-effectiveness of this combination therapy in comparison to chemotherapy alone from the perspective of the United States healthcare system. The present study is based on a partitioned survival model developed from clinical data obtained during the 2-year follow-up of the phase III EMPOWER-Lung 3 part 2 trial. The purpose of this investigation is to estimate the 10-year life expectancy and total healthcare costs of patients with advanced NSCLC by leveraging primary outcomes that evaluated costs, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratio (ICER).To establish the willingness-to-pay (WTP) threshold for the analysis, a value of $150,000/QALY was adopted. Sensitivity analysis was performed to determine the impact of varying levels of uncertainty on the results of this study. When compared to chemotherapy alone, the addition of cemiplimab to chemotherapy has been demonstrated to result in an incremental gain of 1.593 QALY at an additional cost of $109351.298. This equates to an incremental cost-effectiveness ratio (ICER) of $68644.883/QALY. One-way sensitivity analyses were conducted on the model, which acknowledged the influence of several parameters, such as subsequent costs, the utility of progressive disease, the cost of best supportive care, the cost of cemiplimab per mg, and the utility of progression-free survival on the outcomes. Nonetheless, none of these parameters yielded an ICER lower than the WTP threshold. From the perspective of the United States healthcare system, the utilization of cemiplimab in combination with chemotherapy as a first-line treatment option for NSCLC appears to be a cost-effective approach as compared to using chemotherapy as a standalone therapy.
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