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Clinical Trial Summary

This study evaluates the immunogenicity and safety of a purified inactivated JE vaccine compared to a commercialized JE vaccine. In this phase III, randomized, blind trial, infants at 6-23 months of age were randomly assigned to three groups to receive experimental vaccine or control vaccine with two different vaccination schedule respectively.


Clinical Trial Description

The clinical study used randomized, blind method, commercialize inactivated Japanese encephalitis vaccine as control. In Infants at 6-23 months of age were injected with experimental vaccine with 0,7 days and 0,28 days vaccination schedule to evaluate immunogenicity and safety of the experimental vaccine and the effectiveness of different vaccination schedule. Participates were assigned to three groups (350 per group): group 1 with experimental vaccine using 0,7 days vaccination schedule; group 2 with control vaccine using 0, 7 days vaccination schedule; group 3 with experimental vaccine using 0, 28 vaccination schedule. Blood samples were collected before immunization and 30 days after immunization, and the neutralization antibody of Japanese encephalitis was detected by plaque reduction neutralization test. Medical observation was conducted 30 minutes after each injection. Body temperature of participates was continuously measured for 7 days, and any adverse events were observed and recorded from the first dose to 30 days after the whole vaccination. Serious adverse events were collected within 6 months after the first dose. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04223037
Study type Interventional
Source Chinese Academy of Medical Sciences
Contact
Status Active, not recruiting
Phase Phase 3
Start date September 1, 2015
Completion date December 31, 2022

See also
  Status Clinical Trial Phase
Completed NCT01396512 - Study of a Live Attenuated Japanese Encephalitis Chimeric Virus Vaccine (IMOJEV™) Compared to CD.JEVAX™ in Toddlers Phase 3