This clinical trial is focused on studying the effects of two vaccines: the BIMERVAX COVID-19 vaccine and a seasonal flu vaccine called Fluad Tetra. The trial is designed for adults over the age of 65 who have already been fully vaccinated against COVID-19. The purpose of the study is to evaluate the safety and immune response when these vaccines are given together compared to when they are given separately.
Participants in the study will receive either the BIMERVAX vaccine, the Fluad Tetra vaccine, both vaccines together, or a placebo, which is a substance with no active ingredients. The vaccines are administered through an injection into the muscle. The study will monitor participants for any reactions or side effects for a period of time after the vaccination. This includes checking for any local reactions at the injection site, as well as any general reactions throughout the body.
The trial will also measure the levels of antibodies, which are proteins made by the immune system to fight infections, in the participants’ blood. This will help determine how well the vaccines work when given together. The study aims to provide valuable information on the safety and effectiveness of coadministering these vaccines in older adults, which could help guide future vaccination strategies.



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