An Observational Study to Describe EVUSHELD™ (Tixagevimab/Cilgavimab) Pre-exposure Prophylaxis in Real-world Setting in Japan

This is an observational, cohort study that will use secondary data to describe the baseline demographics and clinical characteristics in patients who received EVUSHELD as PrEP against SARS-CoV-2 infection/COVID-19 in Japan. All patients who have a record of administration of EVUSHELD in the database will be included in the study. The index date will be defined as the date of first EVUSHELD administration in the database (Day 0) and the patients will be followed up to 6 months after the index date (Day 1 to 180). The look back period is defined as the 12-month period prior to index date (Day -360 to -1). The exposure of interest will be defined as the administration of EVUSHELD for use as PrEP against COVID-19. As the result of feasibility assessment, sample size of the study expected to be approximately 280.