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Lactoferrin as Antiviral Treatment in COVID-19 Management: Preliminary Evidence.

ABSTRACT: Lactoferrin (Lf), a multifunctional cationic glycoprotein synthesized by exocrine glands and neutrophils, possesses an in vitro antiviral activity against SARS-CoV-2. Thus, we conducted an in vivo preliminary study to investigate the antiviral effect of oral and intranasal liposomal bovine Lf (bLf) in asymptomatic and mild-to-moderate COVID-19 patients. From April 2020 to June 2020, a total of 92 mild-to-moderate (67/92) and asymptomatic (25/92) COVID-19 patients were recruited and divided into three groups. Thirty-two patients (14 hospitalized and 18 in home-based isolation) received only oral and intranasal liposomal bLf; 32 hospitalized patients were treated only with standard of care (SOC) treatment; and 28, in home-based isolation, did not take any medication. Furthermore, 32 COVID-19 negative, untreated, healthy subjects were added for ancillary analysis. Liposomal bLf-treated COVID-19 patients obtained an earlier and significant (p < 0.0001) SARS-CoV-2 RNA negative conversion compared to the SOC-treated and untreated COVID-19 patients (14.25 vs. 27.13 vs. 32.61 days, respectively). Liposomal bLf-treated COVID-19 patients showed fast clinical symptoms recovery compared to the SOC-treated COVID-19 patients. In bLf-treated patients, a significant decrease in serum ferritin, IL-6, and D-dimers levels was observed. No adverse events were reported. These observations led us to speculate a potential role of bLf in the management of mild-to-moderate and asymptomatic COVID-19 patients.

SUBMITTER: Campione E

PROVIDER: S-EPMC8535893 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Lactoferrin as Antiviral Treatment in COVID-19 Management: Preliminary Evidence.

Campione Elena E Lanna Caterina C Cosio Terenzio T Rosa Luigi L Conte Maria Pia MP Iacovelli Federico F Romeo Alice A Falconi Mattia M Del Vecchio Claudia C Franchin Elisa E Lia Maria Stella MS Minieri Marilena M Chiaramonte Carlo C Ciotti Marco M Nuccetelli Marzia M Terrinoni Alessandro A Iannuzzi Ilaria I Coppeta Luca L Magrini Andrea A Bernardini Sergio S Sabatini Stefano S Rosapepe Felice F Bartoletti Pier Luigi PL Moricca Nicola N Di Lorenzo Andrea A Andreoni Massimo M Sarmati Loredana L Miani Alessandro A Piscitelli Prisco P Squillaci Ettore E Valenti Piera P Bianchi Luca L

International journal of environmental research and public health 20211019 20

Lactoferrin (Lf), a multifunctional cationic glycoprotein synthesized by exocrine glands and neutrophils, possesses an in vitro antiviral activity against SARS-CoV-2. Thus, we conducted an in vivo preliminary study to investigate the antiviral effect of oral and intranasal liposomal bovine Lf (bLf) in asymptomatic and mild-to-moderate COVID-19 patients. From April 2020 to June 2020, a total of 92 mild-to-moderate (67/92) and asymptomatic (25/92) COVID-19 patients were recruited and divided into ...[more]

PMID: 34682731

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Project description:ImportancePneumonia due to COVID-19 can lead to respiratory failure and death due to the development of the acute respiratory distress syndrome. Tocilizumab, a monoclonal antibody targeting the interleukin-6 receptor, is being administered off-label to some patients with COVID-19, and although early small studies suggested a benefit, there are no conclusive data proving its usefulness.ObjectiveTo evaluate outcomes in hospitalized patients with COVID-19 with or without treatment with Tocilizumab.Design, setting, participantsRetrospective study of 1938 patients with confirmed COVID-19 pneumonia admitted to hospitals within the Jefferson Health system in Philadelphia, Pennsylvania, between March 25, 2020 and June 17, 2020, of which 307 received Tocilizumab.ExposuresConfirmed COVID-19 pneumonia.Main outcomes and measuresOutcomes data related to length of stay, admission to intensive care unit (ICU), requirement of mechanical ventilation, and mortality were collected and analyzed.ResultsThe average age was 65.2, with 47% women; 36.4% were African-American. The average length of stay was 22 days with 26.3% of patients requiring admission to the ICU and 14.9% requiring mechanical ventilation. The overall mortality was 15.3%. Older age, admission to an ICU, and requirement for mechanical ventilation were associated with higher mortality. Treatment with Tocilizumab was also associated with higher mortality, which was mainly observed in subjects not requiring care in an ICU with estimated odds ratio (OR) of 2.9 (p = 0.0004). Tocilizumab treatment was also associated with higher likelihood of admission to an ICU (OR = 4.8, p < 0.0001), progression to requiring mechanical ventilation (OR = 6.6, p < 0.0001), and increased length of stay (OR = 16.2, p < 0.0001).Conclusion and relevanceOur retrospective analysis revealed an association between Tocilizumab administration and increased mortality, ICU admission, mechanical ventilation, and length of stay in subjects with COVID-19. Prospective trials are needed to evaluate the true effect of Tocilizumab in this condition.

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Lactoferrin as Antiviral Treatment in COVID-19 Management: Preliminary Evidence.

Publications

Lactoferrin as Antiviral Treatment in COVID-19 Management: Preliminary Evidence.

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