About this trial
A Phase 1b clinical trial of 24-valent pneumococcal conjugate vaccine (PCV24) developed by Sinovac Life Science Co., Ltd will be conducted in pediatric population aged 2 months (minimum 42 days)-23 months.
The objective of the study is to evaluate the safety and immunogenicity of Sinovac PCV24. The trial is a randomized, double-blind, positive controlled phase Ib clinical trial.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Healthy infants who are aged 2 months (42-89 days), 7-11 months, 12-23 months;
Participants' guardian provides legal identity document and participants' vaccination record;
Participants' guardian understands and voluntarily signs the informed consent form;
Follow all study procedures and stay in contact during the study.
Disqualifiers
Received any pneumococcal vaccine prior to enrollment;
History of invasive pneumococcal diseases or other pneumococcal diseases caused by Streptococcus pneumoniae, as confirmed by laboratory tests;
History of severe adverse reactions to the vaccine or vaccine components, or history of allergy, such as urticaria, dyspnea, angioneurotic edema, anaphylactic shock;
Low birth weight (<2.5kg), or premature infant (gestation weeks < 37 weeks) (applies to infants younger than 12 months);
Trial design
Parallel
Treatments tested in this trial
Sinovac PCV24
Biological/VaccineSinovac PCV24 (0.5 mL) is administered intramuscularly according to different immunization schedules.
Prevnar®
Biological/VaccinePrevnar® (0.5 mL) is administered intramuscularly according to different immunization schedules.
Treatment groups
Trial outcomes
Primary outcomes
Incidence of adverse reactions
Incidence of adverse reactions within 30 days after vaccination
Secondary outcomes
Incidence of adverse reactions
Incidence of adverse reactions within 7 days after vaccination
Incidence of serious adverse events (SAE)
Incidence of SAE during the period of safety monitoring
Pneumococcal serotype-specific IgG antibody geometric mean concentration (GMC)
IgG GMC 30 days after primary vaccination
Pneumococcal serotype-specific IgG antibody geometric mean increase (GMI)
IgG GMI 30 days after primary vaccination
Sponsors and contacts
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