Lopinavir/ritonavir and interferon combination therapy may help shorten the duration of viral shedding in patients with COVID-19: A retrospective study in two designated hospitals in Anhui, China
Abstract
Prolonged viral shedding may pose a threat to the control of coronavirus disease-2019 (COVID-19), and data on the duration of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) shedding are still limited, with the associated factors being unknown. All adult patients with laboratory-confirmed COVID-19 were included in this retrospective cross-sectional study in two designated hospitals during 21 January 2020 to 16 March 2020 in Anhui, China. In all patients, data on the duration of SARS-CoV-2 RNA shedding were analyzed by reviewing all RNA detection results during hospitalization. In addition, demographic, clinical, treatment, laboratory, and outcome data were also collected from electronic medical records. Factors associated with prolonged viral shedding were analyzed with the Cox proportional hazards model. Among 181 patients, the mean age was 44.3 ± 13.2 years, and 55.2% were male. The median duration of viral shedding from illness onset was 18.0 days (interquartile range [IQR], 15.0-24.0). Prolonged viral shedding was associated with longer hospital stays (P < .001) and higher medical costs (P < .001). The severity of COVID-19 had nothing to do with prolonged shedding. Moreover, the median time from onset to antiviral treatment initiation was 5.0 days (IQR, 3.0-7.0). Delayed antiviral treatment (hazard ratio [HR], 0.976; 95% confidence interval [CI], 0.962-0.990]) and lopinavir/ritonavir + interferon-α (IFN-α) combination therapy as the initial antiviral…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 181 participants or records.
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