drugset / Trial / NCT04817917
Seroprevalence of Neutralizing Antibodies Against Japanese Encephalitis Virus Among 6 Years Old Children With 5 Different Immunization Strategies in Zhejiang Province
Phase 4
Unknown
712 enrolled
Zhejiang Provincial Center for Disease Control and Prevention
Liaoning Chengda Biotechnology CO., LTD · collab
Non-randomizedParallel-groupOpen-labelPrevention
Summary
This study is to evaluate the seroprevalence of neutralizing antibodies against Japanese encephalitis (JE) virus in children aged 6 years who were previously administered with 5 different immunization strategies by JE attenuated live vaccine (JEV-L) or/and inactivated vaccine (JEV-I). The secondary objective is to evaluate the immunogenicity of the booster dose of JEV-I at 6 years old for those previously immunized with 3 doses of JEV-I or those sequential administered with 1 dose of JEV-L and another dose of JEV-I.
Timeline
- Start
- 2021-03-01
- Primary completion
- 2022-09-17
- Completion
- 2023-06-30
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Japanese Encephalitis Vaccine (Vero Cell), Inactivated | Vaccine | — | — |