Moderna doses first participant in Phase 3 trial of mRNA-1403

Moderna announced that the first participant in the U.S. has been dosed in the Nova 301 Trial, a pivotal Phase 3 randomized clinical trial evaluating the efficacy, safety, and immunogenicity of an investigational norovirus vaccine, mRNA-1403. Global recruitment for the Nova 301 trial has also begun. The Nova 301 Phase 3 trial is a randomized, observer-blind, placebo-controlled trial evaluating the efficacy, safety and immunogenicity of mRNA-1403. The trial aims to enroll approximately 25,000 participants 18 years of age and older globally, including in countries in the Northern Hemisphere, the equatorial region, and the Southern Hemisphere. Approximately 20,000 participants 60 years of age and older and 5,000 participants between 18 and 59 years of age will be enrolled to assess the investigational vaccine’s ability to protect against moderate to severe norovirus acute gastroenteritis in adults, with a focus on the older age group that is at greatest risk of severe outcomes including hospitalization. mRNA-1403 is an mRNA vaccine in development to prevent moderate to severe acute gastroenteritis caused by norovirus. The vaccine candidate is a trivalent formulation containing mRNA that encodes for virus-like particles designed to protect against multiple norovirus genotypes.