Résumé
France was the first country to grant Sipavibart (AZD3152, an investigational long-acting monoclonal antibody) as a COVID-19 pre-exposure prophylaxis treatment in immunocompromised individuals in December 2023. The first patients to receive Sipavibart had different profiles, but they were all highly immunocompromised with frequently associated hypogammaglobulinemia and other chronic conditions. No adverse event was reported.