Clinical Trial: Study on Effectiveness of 2-dose Live Attenuated Varicella Vaccine
Study Status: Completed
Recruit Status: Unknown status
Study Type: Interventional
Official Title: Study on Effectiveness of 2-dose Live Attenuated Varicella Vaccine
Brief Summary:
The objective of the study is as follows:
- To know the antibody level during different interval after received 1 dose varicella vaccine.
- To know safety and effectiveness of received 2 doses varicella vaccine with different interval.
- To know safety and effectiveness of received varicella vaccine and MMR at the same time.
To achieve that, this study selects children with specific varicella vaccine history, gives 1 or 2 doses varicella vaccine, collects blood specimens and makes a follow-up visit after vaccination.
All blood specimens will be tested by a third-party detection institution.
Detailed Summary:
Sponsor: Shanghai Municipal Center for Disease Control and Prevention
Current Primary Outcome: Seroconversion rate and GMCs after varicella vaccination [ Time Frame: 35-42 days after each dose vaccination ]
Original Primary Outcome: Same as current
Current Secondary Outcome: The incidence of Adverse Events Following Immunization [ Time Frame: 30 days after each dose vaccination ]
Original Secondary Outcome: Same as current
Information By: Shanghai Municipal Center for Disease Control and Prevention
Dates:
Date Received: May 21, 2014
Date Started: December 2012
Date Completion: December 2014
Last Updated: May 21, 2014
Last Verified: May 2014
