Efficacy and Safety of Simnotrelvir-Ritonavir Compared With Nirmatrelvir-Ritonavir in the Treatment of COVID-19: Real-World Evidence From a Retrospective Cohort Study During the Prevalence of the Omicron EG.5 Variant.
Yi Zhang, Yuezhen Zhu, Hui Yang, Chunguo Jiang, Wanying Chen, Hui Zhang, Xintong Zhang, Han Wu, Jia Li, Zhuoling An
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引用次数: 0
Abstract
Purpose: The rapid spread of the coronavirus-2019 (COVID-19) Omicron EG.5 variant poses challenges to existing treatment strategies, and comparative real-world evidence between simnotrelvir-ritonavir and nirmatrelvir-ritonavir remains limited.
Methods: We conducted a single-center retrospective study from July 01 to December 31, 2023, involving outpatient-diagnosed COVID-19 patients. We performed a descriptive analysis of epidemiologic characteristics, followed by regression analysis to identify key factors. Efficacy and safety differences between simnotrelvir-ritonavir and nirmatrelvir-ritonavir were then compared.
Findings: A total of 545 patients were included, with 93.21% presenting with general symptoms, 88.81% with respiratory symptoms, 10.28% with gastrointestinal symptoms, and 9.36% with cardiovascular symptoms. Factors associated with delayed recovery included a BMI over 25 kg/m2 (P = 0.004), and symptoms lasting more than 3 days at presentation (P = 0.004). The efficacy of simnotrelvir-ritonavir and nirmatrelvir-ritonavir was comparable, with mean days to symptom recovery of 5.11 and 4.22 days, respectively. However, simnotrelvir-ritonavir had a higher incidence of adverse events (20.59%) compared to nirmatrelvir-ritonavir (6.69%), primarily gastrointestinal disorders.
Implications: During the Omicron EG.5 epidemic, general and respiratory symptoms predominated, with delayed recovery associated with being overweight, late treatment initiation, and multiple comorbidities. Simnotrelvir-ritonavir and nirmatrelvir-ritonavir demonstrated comparable efficacy, while simnotrelvir-ritonavir had a poorer safety profile.
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