Phase III, randomized, double-blind, placebo-controlled clinical study: a study on the safety and clinical efficacy of AZVUDINE in moderate COVID-19 patients

BackgroundIn 2019, a highly pathogenic coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) surfaced and resulted in the outbreak of coronavirus disease 2019 (COVID-19). With the aim of finding effective drugs to fight against the disease, several trials have been conducted...

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Published in:Frontiers in medicine Vol. 10; p. 1215916
Main Authors: de Souza, Sávio Bastos, Cabral, Paula Gebe Abreu, da Silva, Renato Martins, Arruda, Raul Ferraz, Cabral, Sheila Passos de Figueiredo, de Assis, Arícia Leone Evangelista Monteiro, Viana Junior, Antônio Brazil, Degrave, Wim Maurits Sylvain, Moreira, Aline dos Santos, Silva, Cléber Glória, Chang, Junbiao, Lei, Pingsheng
Format: Journal Article
Language:English
Published: Frontiers Media S.A 19-10-2023
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Summary:BackgroundIn 2019, a highly pathogenic coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) surfaced and resulted in the outbreak of coronavirus disease 2019 (COVID-19). With the aim of finding effective drugs to fight against the disease, several trials have been conducted since COVID-19 can only be considered a treatable disease, from a clinical point of view, after the availability of specific and effective antivirals. AZVUDINE (FNC), initially developed for treating HIV, is a potential treatment for COVID-19 as it has the capability to lower the patient's viral load and promote recovery.MethodsVolunteers infected with SARS-CoV-2 confirmed by reverse transcription polymerase chain reaction (RT-PCR), with good kidney and liver function, who were not using other antivirals or monoclonal antibodies were eligible. Samples from patients were assessed for viral load every 48 h during treatment using reverse transcription quantitative polymerase chain reaction (RT-qPCR) and droplet digital polymerase chain reaction (ddPCR).ResultsThe study's primary outcome measure was the percentage of participants showing an improvement in clinical scores, while the secondary outcome measure was the percentage of participants with a clinical outcome of cure. These measures were used to assess the safety and efficacy of FNC for treating COVID-19. In the analysis of sociodemographic variables, no significant differences were detected between patients in the FNC and the placebo group for race, age group, or sex. The results showed a potential benefit to participants who received FNC during the study, as observed in the shorter hospital stay, shorter negative conversion time of SARS-CoV-2, and a significant reduction in viral load. Furthermore, the reduction in fever and chills were significant at D1, D2, and D3. In this study, a total of 112 adverse events cases were noted, with 105 cases being categorized as non-serious and only 7 cases as serious adverse events.ConclusionThe pandemic is not being effectively controlled and is causing multiple waves of infection that require extensive medical resources. However, FNC has demonstrated potential to reduce the treatment duration of moderate COVID-19 cases, thereby saving significant medical resources. This makes FNC a promising candidate for COVID-19 treatment.Clinical trial registration: [clinicaltrials.gov], identifier [NCT04668235].
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Edited by: Jawhar Gharbi, King Faisal University, Saudi Arabia
These authors have contributed equally to this work
Reviewed by: Biagio Pinchera, University of Naples Federico II, Italy; Kumpal Madrasi, Sanofi U.S., United States
ISSN:2296-858X
2296-858X
DOI:10.3389/fmed.2023.1215916