U.S., May 6 -- ClinicalTrials.gov registry received information related to the study (NCT07568522) titled 'Long-Term Immunogenicity of Envacgen(R) in Children' on April 28.
Brief Summary: This study is designed to evaluate the long-term antibody titers of Envacgen(R) approximately 6 years after the first vaccination dose in participants who were aged 2 months to <6 years at the time of enrollment in the CT-EV-31s study.
Study Start Date: Nov. 24, 2025
Study Type: OBSERVATIONAL
Condition:
Enterovirus 71 Human
Intervention:
BIOLOGICAL: EV71 vaccine
EV71 vaccine with Adjuvant AlPO4 and the placebo (Adjuvant AlPO4 only) were randomly administrated to subject in CT-EV-31s study
Recruitment Status: ACTIVE_NOT_RECRUITING
Sponsor: Medigen...