This clinical trial is focused on studying the treatment of COVID-19, which is caused by the SARS-CoV-2 virus. The study involves the use of several treatments, including Ronapreve, Evusheld, Xevudy, and Paxlovid. Ronapreve contains the active substance casirivimab, Evusheld contains cilgavimab, Xevudy contains sotrovimab, and Paxlovid contains nirmatrelvir. These treatments are designed to help the body fight the virus by using special proteins called monoclonal antibodies or antiviral agents.
The purpose of this study is to understand how these treatments affect the virus in the body, including how the virus changes and how the body responds to the treatment. The study will also look at how these treatments can prevent COVID-19. Participants will receive one of the treatments or a placebo, and their health will be monitored to see how the virus behaves during and after treatment. This includes checking for any changes in the virus, such as mutations, and observing the body’s immune response.
The study will create a biobank, which is a collection of biological samples, to help answer future questions about the use of these treatments compared to new COVID-19 treatments that are being developed. The study will take place over a period of time, and participants will be closely monitored to gather important information about the effectiveness and safety of these treatments.



The Netherlands