Sanofi posts results of Phase 3 MenACYW conjugate vaccine study in infants and toddlers
Results for the Phase 3 study comparing MenACYW conjugate vaccine (MenQuadfi) with Nimenrix were first posted on ClinicalTrials.gov on October 7, 2026. The 840-participant, randomized, triple-masked trial, completed on November 14, 2025, evaluated non-inferiority of the immunological response after a 1+1 vaccination schedule in healthy infants and toddlers.
Primary source
ClinicalTrials.gov results record, October 7, 2026
Study on Immunogenicity and Safety of a Meningococcal ACYW Conjugate Vaccine in Healthy Infants and Toddlers
Read the source: Study on Immunogenicity and Safety of a Meningococcal ACYW Conjugate Vaccine in Healthy Infants and Toddlers clinicaltrials.gov
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