Effectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational study

Abstract Background Azvudine has clinical benefits and acceptable safety against COVID-19, including in patients with comorbidities, but there is a lack of available data for its use in older adult patients. This study explored the effectiveness and safety of azvudine in older adults with mild or mo...

Full description

Bibliographic Details
Main Authors: Zhiguo Zhou, He Zheng, Gui’e Xiao, Xiangping Xie, Jiaxi Rang, Danhong Peng
Format: Article
Language:English
Published: BMC 2024-01-01
Series:BMC Infectious Diseases
Subjects:
Online Access:https://doi.org/10.1186/s12879-023-08944-z
_version_ 1797275665911775232
author Zhiguo Zhou
He Zheng
Gui’e Xiao
Xiangping Xie
Jiaxi Rang
Danhong Peng
author_facet Zhiguo Zhou
He Zheng
Gui’e Xiao
Xiangping Xie
Jiaxi Rang
Danhong Peng
author_sort Zhiguo Zhou
collection DOAJ
description Abstract Background Azvudine has clinical benefits and acceptable safety against COVID-19, including in patients with comorbidities, but there is a lack of available data for its use in older adult patients. This study explored the effectiveness and safety of azvudine in older adults with mild or moderate COVID-19. Methods This retrospective cohort study included patients aged ≥80 diagnosed with COVID-19 at the Central Hospital of Shaoyang between October and November 2022. According to the therapies they received, the eligible patients were divided into the azvudine, nirmatrelvir/ritonavir, and standard-of-care (SOC) groups. The outcomes were the proportion of patients progressing to severe COVID-19, time to nucleic acid negative conversion (NANC), and the 5-, 7-, 10-, and 14-day NANC rates from admission. Results The study included 55 patients treated with azvudine (n = 14), nirmatrelvir/ritonavir (n = 18), and SOC (n = 23). The median time from symptom onset to NANC of the azvudine, nirmatrelvir/ritonavir, and SOC groups was 14 (range, 6–25), 15 (range, 11–24), and 19 (range, 18–23) days, respectively. The median time from treatment initiation to NANC of the azvudine and nirmatrelvir/ritonavir groups was 8 (range, 4–20) and 9 (range, 5–16) days, respectively. The median length of hospital stay in the three groups was 10.5 (range, 5–23), 13.5 (range, 10–21), and 17 (range, 10–23) days, respectively. No treatment-related adverse events or serious adverse events were reported. Conclusion Azvudine showed satisfactory effectiveness and acceptable safety in older adults with mild or moderate COVID-19. Therefore, azvudine could be a treatment option for this special patient population.
first_indexed 2024-03-07T15:17:44Z
format Article
id doaj.art-1e483a50d7aa4567801ac0a23bc88145
institution Directory Open Access Journal
issn 1471-2334
language English
last_indexed 2024-03-07T15:17:44Z
publishDate 2024-01-01
publisher BMC
record_format Article
series BMC Infectious Diseases
spelling doaj.art-1e483a50d7aa4567801ac0a23bc881452024-03-05T17:48:59ZengBMCBMC Infectious Diseases1471-23342024-01-012411810.1186/s12879-023-08944-zEffectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational studyZhiguo Zhou0He Zheng1Gui’e Xiao2Xiangping Xie3Jiaxi Rang4Danhong Peng5Department of Respiratory and Critical Care Medicine, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, The First Hospital of ChangshaDepartment of Infectious Disease, The Central Hospital of ShaoyangDepartment of Infectious Disease, The Central Hospital of ShaoyangDepartment of Infectious Disease, The Central Hospital of ShaoyangDepartment of Nursing, The First Hospital of ChangshaDepartment of Infectious Disease, The Central Hospital of ShaoyangAbstract Background Azvudine has clinical benefits and acceptable safety against COVID-19, including in patients with comorbidities, but there is a lack of available data for its use in older adult patients. This study explored the effectiveness and safety of azvudine in older adults with mild or moderate COVID-19. Methods This retrospective cohort study included patients aged ≥80 diagnosed with COVID-19 at the Central Hospital of Shaoyang between October and November 2022. According to the therapies they received, the eligible patients were divided into the azvudine, nirmatrelvir/ritonavir, and standard-of-care (SOC) groups. The outcomes were the proportion of patients progressing to severe COVID-19, time to nucleic acid negative conversion (NANC), and the 5-, 7-, 10-, and 14-day NANC rates from admission. Results The study included 55 patients treated with azvudine (n = 14), nirmatrelvir/ritonavir (n = 18), and SOC (n = 23). The median time from symptom onset to NANC of the azvudine, nirmatrelvir/ritonavir, and SOC groups was 14 (range, 6–25), 15 (range, 11–24), and 19 (range, 18–23) days, respectively. The median time from treatment initiation to NANC of the azvudine and nirmatrelvir/ritonavir groups was 8 (range, 4–20) and 9 (range, 5–16) days, respectively. The median length of hospital stay in the three groups was 10.5 (range, 5–23), 13.5 (range, 10–21), and 17 (range, 10–23) days, respectively. No treatment-related adverse events or serious adverse events were reported. Conclusion Azvudine showed satisfactory effectiveness and acceptable safety in older adults with mild or moderate COVID-19. Therefore, azvudine could be a treatment option for this special patient population.https://doi.org/10.1186/s12879-023-08944-zAzvudineNirmatrelvir/ritonavirCOVID-19Older adultsTreatment effect
spellingShingle Zhiguo Zhou
He Zheng
Gui’e Xiao
Xiangping Xie
Jiaxi Rang
Danhong Peng
Effectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational study
BMC Infectious Diseases
Azvudine
Nirmatrelvir/ritonavir
COVID-19
Older adults
Treatment effect
title Effectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational study
title_full Effectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational study
title_fullStr Effectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational study
title_full_unstemmed Effectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational study
title_short Effectiveness and safety of azvudine in older adults with mild and moderate COVID-19: a retrospective observational study
title_sort effectiveness and safety of azvudine in older adults with mild and moderate covid 19 a retrospective observational study
topic Azvudine
Nirmatrelvir/ritonavir
COVID-19
Older adults
Treatment effect
url https://doi.org/10.1186/s12879-023-08944-z
work_keys_str_mv AT zhiguozhou effectivenessandsafetyofazvudineinolderadultswithmildandmoderatecovid19aretrospectiveobservationalstudy
AT hezheng effectivenessandsafetyofazvudineinolderadultswithmildandmoderatecovid19aretrospectiveobservationalstudy
AT guiexiao effectivenessandsafetyofazvudineinolderadultswithmildandmoderatecovid19aretrospectiveobservationalstudy
AT xiangpingxie effectivenessandsafetyofazvudineinolderadultswithmildandmoderatecovid19aretrospectiveobservationalstudy
AT jiaxirang effectivenessandsafetyofazvudineinolderadultswithmildandmoderatecovid19aretrospectiveobservationalstudy
AT danhongpeng effectivenessandsafetyofazvudineinolderadultswithmildandmoderatecovid19aretrospectiveobservationalstudy