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Published on: December 10, 2013
Cost-Effectiveness Analysis of Nirsevimab for Preventing Respiratory Syncytial Virus-Related Lower Respiratory Tract
Florian Zeevat1,2, Simon van der Pol1,2, Alexia Kieffer3
1Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Objectives:
This study aimed to assess the cost effectiveness of nirsevimab, a recently authorized monoclonal antibody (mAb) for the prevention of lower respiratory tract disease (LRTD) caused by respiratory syncytial virus (RSV), in comparison with the standard practice involving palivizumab for high-risk infants during their first RSV season in the Netherlands.
Methods:
A static cost-effectiveness model was populated for the Netherlands to evaluate different immunization strategies for nirsevimab over a single RSV season from a societal perspective. The model considered the most recently published RSV incidence data (average incidence from 2006 to2018), costs (adjusted to the 2023 price year), and associated health effects. Extensive scenario analyses were conducted to explore various strategies, and sensitivity analysis was performed to assess the model's robustness.
Results:
In the base-case scenario, all-infant protection-a strategy of in-season with catch-up immunization for all infants-nirsevimab has the potential to prevent numerous RSV-related cases, including 2333 hospitalizations and 150 intensive-care admissions, in the overall population compared with the standard of care. Nirsevimab appears to be cost effective under this strategy with an economically justifiable acquisition price for nirsevimab of €220 at a willingness-to-pay threshold of €50,000 per quality-adjusted life-year. Sensitivity analyses indicate a 52% probability that nirsevimab is cost effective at this threshold. Comparison of different vaccination strategies revealed that the all-infant protection approach was the one that prevented the higher number of cases.
Conclusions:
This study indicates that universal infant immunization with nirsevimab has the potential to be cost effective and significantly reduces the burden of RSV among Dutch infants. These findings underscore the importance of implementing effective protective measures against RSV-LRTD, reducing the pressure on the healthcare system during the RSV season.
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