1. SARS-CoV-2 RNA and Nucleocapsid Antigen Are Blood Biomarkers Associated With Severe Disease Outcomes That Improve in Response to Remdesivir.
- Author
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Singh, Kanal, Rubenstein, Kevin, Callier, Viviane, Shaw-Saliba, Katy, Rupert, Adam, Dewar, Robin, Laverdure, Sylvain, Highbarger, Helene, Lallemand, Perrine, Huang, Meei-Li, Jerome, Keith, Sampoleo, Reigran, Mills, Margaret, Greninger, Alexander, Juneja, Kavita, Porter, Danielle, Benson, Constance, Dempsey, Walla, El Sahly, Hana, Focht, Chris, Jilg, Nikolaus, Paules, Catharine, Rapaka, Rekha, Uyeki, Timothy, Clifford Lane, H, Beigel, John, and Dodd, Lori
- Subjects
COVID-19 ,SARS-CoV-2 ,antiviral efficacy ,clinical trial ,remdesivir ,Humans ,Adenosine Monophosphate ,Alanine ,SARS-CoV-2 ,Antiviral Agents ,COVID-19 Drug Treatment ,RNA ,Viral ,COVID-19 ,Male ,Female ,Biomarkers ,Middle Aged ,Viral Load ,Treatment Outcome ,Adult ,Coronavirus Nucleocapsid Proteins ,Aged ,Antigens ,Viral - Abstract
BACKGROUND: Although antivirals remain important for the treatment COVID-19, methods to assess treatment efficacy are lacking. Here, we investigated the impact of remdesivir on viral dynamics and their contribution to understanding antiviral efficacy in the multicenter Adaptive COVID-19 Treatment Trial 1, which randomized patients to remdesivir or placebo. METHODS: Longitudinal specimens collected during hospitalization from a substudy of 642 patients with COVID-19 were measured for viral RNA (upper respiratory tract and plasma), viral nucleocapsid antigen (serum), and host immunologic markers. Associations with clinical outcomes and response to therapy were assessed. RESULTS: Higher baseline plasma viral loads were associated with poorer clinical outcomes, and decreases in viral RNA and antigen in blood but not the upper respiratory tract correlated with enhanced benefit from remdesivir. The treatment effect of remdesivir was most pronounced in patients with elevated baseline nucleocapsid antigen levels: the recovery rate ratio was 1.95 (95% CI, 1.40-2.71) for levels >245 pg/mL vs 1.04 (95% CI, .76-1.42) for levels
- Published
- 2024