The BLA approval was based on pivotal Phase 3 clinical trial data that showed Nuvaxovid was safe and effective for the prevention of COVID-19.2,3 In addition, the FDA has requested a new postmarketing commitment (PMC) to conduct a Phase 4 prospective, randomized, double-blinded, placebo-controlled efficacy and safety trial in individuals aged 50 through 64 without high-risk conditions for severe COVID-19. Novavax is working closely with Sanofi to assess funding and execution of this new trial. This PMC supp ...