This clinical trial is focused on studying Influenza, commonly known as the flu, in children. The treatment being tested is a medication called Baloxavir Marboxil, which is also known by its code name S-033188. This medication is provided in the form of granules that are mixed with liquid to create an oral suspension, making it easier for children to take.
The purpose of the study is to understand how well Baloxavir Marboxil works in treating the flu in children and to observe any changes in the flu virus that might occur during treatment. The study will monitor children who have been diagnosed with the flu and will involve taking samples at different times to check for any changes in the virus. These samples will help researchers see if the virus becomes resistant to the medication.
Participants in the study will receive the medication and will be observed over a short period. The study will involve several visits where samples will be collected to monitor the virus and any side effects of the medication. The goal is to gather information on how the flu virus responds to Baloxavir Marboxil and to ensure the safety and effectiveness of the treatment in children.



Bulgaria
Poland
Spain