Prevention of Infection and Incidence of COVID-19 in Medical Personnel Assisting Patients With New Coronavirus Disease

  • STATUS
    Recruiting
  • participants needed
    140
  • sponsor
    Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health
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Updated on 16 February 2024
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Summary

This is a randomized controlled trial of the efficacy and safety evaluation of oral administration of Bromhexine hydrochloride for the prevention of SARS-CoV-2 infection and COVID-19 disease in medical personnel assisting patients with a new coronavirus disease

Description

This study aims to evaluate the oral administration of Bromhexine hydrochloride for the prevention of SARS-CoV-2 infection and COVID-19 disease in medical personnel assisting patients with a new coronavirus disease. The aim of the study is to determine the preventive role of this drug in the framework of reducing the incidence of coronavirus infection in risk groups (medical personnel). Several studies show, that the acute respiratory syndrome coronavirus SARS-CoV uses endosomal cysteine proteases cathepsin B and L (CatB/L) and the transmembrane protease serine type 2 (TMPRSS2) for the priming of the viral S-protein. The new coronavirus SARS-CoV-2 penetrates into alveolar epithelial type two cells through a similar mechanism. In detail, viral S-protein binds to pneumocyte angiotensin-converting enzyme 2 (ACE2) and then undergoes cleaving by TMPRSS2 in S1- and S2-subunits. This leads to the release of a fusion peptide, which allows the virus to enter the cell via endocytosis. Therefore, the protease TMPRSS2 can serve as a target for pharmacological agents to prevent the penetration of the SARS-CoV-2 into the cell. Bromhexine blocks the TMPRSS2 ability to activate a zymogen precursor of tissue plasminogen activator in vitro. Interestingly, TMPRSS2 is blocked by much lower concentrations then required to inactivate other proteases in the cell culture. However, these data cannot be simply extended to the clinical practice: whether the concentration of bromhexine in the lung tissue of properly treated patients would be enough to prevent the virus entry through the TMPRSS2-inactivation remains unclear. A randomized study in people at risk for coronavirus infection will clarify the role of Bromhexine hydrochloride as a prevention of this disease.

Details
Condition Increased Risk of SARS-CoV-2 Infection
Age 18years - 100years
Treatment Bromhexine Hydrochloride
Clinical Study IdentifierNCT04405999
SponsorFederal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health
Last Modified on16 February 2024

Eligibility

 Yes No Not Sure

Inclusion Criteria

Age of 18 years or more
Negative test (PCR) for SARS-CoV-2 infection
The absence of clinical manifestations of a respiratory infection
Contact with patients with laboratory and / or clinically confirmed SARS-CoV-2 infection
Signed informed consent to participate in the study

Exclusion Criteria

Intolerance to Bromhexine hydrochloride
Work out of contact with SARS-CoV-2 infection
Non-compliance with the rules for the use of personal protective equipment when working with SARS-CoV-2 infection (the rules for the use of personal protective equipment in accordance with the recommendations of the Ministry of Health of Russia and the internal orders of the Director General of Almazov NMRC, relevant to the dates of research)
Pregnancy and the period of breastfeeding
Other circumstances that the researcher considers inappropriate to participate in this study
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