Cytomegalovirus Infection Clinical Trial
Official title:
A Phase 2, Randomized, Observer-Blind, Placebo-Controlled, Dose-Finding Trial to Evaluate the Safety and Immunogenicity of Cytomegalovirus Vaccine mRNA-1647 in Healthy Adults
This clinical study will assess the safety and immunogenicity of 3 dose levels of mRNA-1647 cytomegalovirus vaccine in CMV-seronegative and CMV-seropositive healthy adults 18-40 years of age.
mRNA-1647-P202 is a 2-part study. Part 1 of the study evaluates the safety and immunogenicity of 3 dose levels of mRNA-1647 vaccine or placebo, administered on a 0, 2, 6-month schedule in healthy CMV-seronegative and CMV-seropositive males and females, 18 to 40 years of age. A planned interim analysis of safety and immunogenicity through Month 3 (1 month after the second dose) of Part 1 of the study informed the selection of the middle dose level for further development. Part 2 of the study is designed to further evaluate the safety and immunogenicity of the middle dose level of mRNA-1647 vaccine or placebo on a 0, 2, 6-month schedule in approximately 200 healthy participants 18 to 40 years of age, comprised of CMV-seronegative and CMV-seropositive female population, which includes the target population for the pivotal Phase 3 efficacy trial. ;
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