Vaccine Reaction Clinical Trial
Official title:
Immunogenicity and Safety of Adsorbed Diphtheria, Tetanus, Acellular Pertussis Combined Vaccine or Adsorbed Diphtheria Tetanus Combined Vaccine in 6 Years Old Children#a Randomized, Controlled Clinical Study
This study is to evaluate the immunogenicity and safety of DTaP or DT given in children aged 6 years.
A phase 4 trial was conducted in Zhejiang Province aimed to evaluate the immunogenicity and safety of DTaP or DT in children aged 6 years. DTaP and DT are produced by Chengdu Institute of Biological Products Co., Ltd. Participants will be recruited and randomly divided into two groups to receive DTaP or DT in 1:1 ratio. Two blood samples were taken on Day 0 (pre-vaccination) and Day 28~42 (after-vaccination) for test antibody against pertussis, diphtheria and tetanus. Adverse events and serious adverse events were actively collected by staff within 28 days of vaccination. ;
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