Status:
UNKNOWN
Seroprevalence of Neutralizing Antibodies Against Japanese Encephalitis Virus Among 6 Years Old Children With 5 Different Immunization Strategies in Zhejiang Province
Lead Sponsor:
Zhejiang Provincial Center for Disease Control and Prevention
Collaborating Sponsors:
Liaoning Chengda Biotechnology CO., LTD
Conditions:
Japanese Encephalitis
Vaccine Preventable Disease
Eligibility:
All Genders
72-75 years
Phase:
PHASE4
Brief 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...
Detailed Description
Based on the retrospective registry in Zhejiang Provincial Immunization Information System, healthy children aged 6 years from 5 cohorts were included according to their previous immunization schedule...
Eligibility Criteria
Inclusion
- Participants aged ≥ 72 months to \< 75 months.
- Participants have completed routine immunization schedules in time.
- Participants are healthy native residents.
- Parents/guardians can understand the protocol requirements, provide informed consent, accept all scheduled visits, and comply with all trial procedures.
Exclusion
- History of neurological diseases or related symptoms.
- An acute illness with fever (temperature ≥ 37.1℃) or any acute onset of chronic diseases.
- Known impairment of immunologic function, or receipt of immunosuppressive therapy or immunoglobulin in the past 3 months.
- Known allergy to any constituent of the vaccine.
- Have been injected with other vaccines or any clinical trial drugs in the past 4 weeks.
- Any condition which, in the opinion of the investigator, would pose a health risk to the subject or interfere with the vaccine.
Key Trial Info
Start Date :
March 1 2021
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
June 30 2023
Estimated Enrollment :
712 Patients enrolled
Trial Details
Trial ID
NCT04817917
Start Date
March 1 2021
End Date
June 30 2023
Last Update
November 15 2022
Active Locations (3)
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1
Liandu center for disease control and prevention
Lishui, Zhejiang, China, 323000
2
Kecheng center for disease control and prevention
Quzhou, Zhejiang, China, 324000
3
Pingyang center for disease control and prevention
Wenzhou, Zhejiang, China, 325400