Background: Patients with hematological malignancies (HM) are at high risk of COVID-19 progression. Hence, early treatments to prevent progression are needed. The aim of our work was to evaluate the effectiveness and safety of remdesivir (RDV) and SARS-CoV-2 monoclonal antibodies (mAb) in patients with HM and mild-to-moderate disease in real clinical practice.
Methods: We conducted a prospective study in a tertiary hospital in 55 HM patients with mild-to-moderate SARS-CoV-2 disease diagnosed between August 2021 and July 2022 and who received RDV or mAb to prevent COVID-19 progression (related death or hospitalization). The primary endpoint was COVID-19 progression on day 28. Other outcomes were COVID-19 progression beyond day 28 and viral load evolution.
Results: RDV was administered to 44 (80.0%) patients and mAb to 11 (20.0%) patients. Death occurred in 1 (1.8%) patient and hospitalization in 9 (16.4%) patients by day 28, respectively; 3 patients (5.5%) required intensive care and 8 (14.5%), oxygen support. Of note, 5 additional patients [15, (27.3%) in total] died or required hospitalization after day 28. Two hazard Cox regression models yielded the absence of anti-SARS-CoV-2 antibodies, age over 65 years, and ECOG-performance status ≥ 2 as the main risk factors for COVID-19-related death or hospitalization.
Conclusion: Our results from clinical practice suggest that RDV and SARS-CoV-2 mAb therapies elicit worse outcomes in hematological patients than those reported for high-risk population in clinical trials.
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http://dx.doi.org/10.1007/s43440-023-00519-8 | DOI Listing |
Viruses
January 2025
School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China.
Coronavirus epidemics have posed a serious threat to both human and animal health. To combat emerging infectious diseases caused by coronaviruses, various animal infection models have been developed and applied in research, including non-human primate models, ferret models, hamster models, mouse models, and others. Moreover, new approaches have been utilized to develop animal models that are more susceptible to infection.
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December 2024
Scientific Research Institute for Biological Safety Problems, Ministry of Health of Kazakhstan, Almaty 080409, Kazakhstan.
The global burden of COVID-19 continues to rise, and despite significant progress in vaccine development, there remains a critical need for effective treatments for the severe inflammation and acute lung injury associated with SARS-CoV-2 infection. In this study, we explored the antiviral properties of a plant-derived complex consisting of flavonol and hydroxyorganic acid compounds. Our research focused on the ability of the flavonol and hydroxyorganic acid complex to suppress the activity of several key proteins involved in the replication and maturation of SARS-CoV-2.
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December 2024
Instituto René Rachou/Fiocruz Minas, Belo Horizonte 30190-009, MG, Brazil.
The global number of COVID-19 deaths has reached 7 million, with 4% of these deaths occurring in children and adolescents. In Brazil, around 1500 children up to 11 years old died from the disease. The most common symptoms in children are respiratory, potentially progressing to severe illnesses, such as severe acute respiratory syndrome (SARS) and MIS-C.
View Article and Find Full Text PDFMolecules
January 2025
Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China.
The three-year COVID-19 pandemic 'has' caused a wide range of medical, social, political, and financial implications. Since the end of 2020, various mutations and variations in SARS-CoV-2 strains, along with the immune escape phenomenon, have emerged. There is an urgent need to identify a relatively stable target for the development of universal vaccines and drugs that can effectively combat both SARS-CoV-2 strains and their mutants.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
High Complexity Center, Instituto Galzu, Campos dos Goytacazes 28110-000, RJ, Brazil.
In the year 2019, a highly virulent coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged, precipitating the outbreak of the illness known as coronavirus disease 2019 (COVID-19). The commonly employed reverse transcription polymerase chain reaction (RT-qPCR) methodology serves to estimate the viral load in each patient's sample by employing a standard curve. However, it is imperative to recognize that this technique exhibits limitations with respect to clinical diagnosis and therapeutic applications, since an advancement of the conventional polymerase chain reaction methods, digital polymerase chain reaction (digital PCR or DDPCR), enables the direct quantification and clonal amplification of nucleic acid strands.
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