A Phase 3b/4, Open-label Study to Assess the Immunogenicity and Safety of mRNA COVID-19 Variant-containing Vaccine Formulations
ModernaTX, Inc.
Summary
The purpose of this study is to investigate the immunogenicity and safety of mRNA COVID-19 variant-containing vaccine formulations against the vaccine-matched variants and newly emerged variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
Description
This study uses a master protocol with a generic study design to allow flexibility in evaluating immunogenicity of variant-containing formulations of the mRNA-1273 COVID-19 vaccine. As different variant-containing vaccine formulations will be evaluated, each study intervention will be described in the subprotocol. For each evaluation of an updated variant vaccine or age group, a new subprotocol will be generated. Reported outcome measures are based upon master protocol. Not all reported outcome measures may be applicable to each subprotocol.
Eligibility
- Age range
- 0+ years
- Sex
- All
- Healthy volunteers
- Yes
Key Inclusion Criteria: * mRNA-1273.167 and mRNA-1273.712: Previously vaccinated adults aged ≥18 years * mRNA-1273.251: Participants ≥65 years of age, ≥12 to \<65 years of age, or ≥6 months to \<12 years of age with at least 1 risk factor for severe outcomes from COVID-19. * mRNA-1273.261: ≥65 years of age at the time of signing the informed consent or ≥18 to \<65 years of age at the time of signing the informed consent with at least 1 risk factor for severe outcomes from COVID-19. * Able to comply with study procedures based on the assessment of the Investigator. * Female participants of chi…