This study evaluates the immunogenicity and safety of three different potencies of NBP608 and Varivax which are indicated for active immunization for the prevention of varicella. Total of 152 subjects (38 subjects per each treatment arm) of 12 months to 12 years of age are enrolled, and each subject is administered with single dose of vaccine which is randomly assigned.
This is a multi-center, randomized, double blinded, active controlled, parallel-group study to evaluate the immunogenicity and safety of three different potencies of NBP608(low, middle, high potency) and Varivax which are indicated for active immunization for the prevention of varicella. Total of 152 subjects (38 subjects per each treatment arm) of 12 months to 12 years of age are enrolled, and each subject is administered with single dose of vaccine which is randomly assigned in 1:1:1:1 ratio. Stratified randomization for age group is used to achieve the balance of treatment assignment within age strata. Total of four visits are scheduled including two visits via telephone contact. Blood sampling is conducted for immunogenicity assessment before and 6 weeks after vaccination at Visit 1 and Visit 3 respectively. Safety is monitored 1 week, 6 weeks and 26 weeks after vaccination through Visit 2\*, Visit 3 and Visit 4\* (\*telephone contact)
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
152
Research Insitute for Torpical Medicine
Muntinlupa City, National Capital Region, Philippines
Seroconversion rate measured by FAMA(Fluorescent Antibody to Membrane Antigen) assay
\*FAMA(Fluorescent Antibody to Membrane Antigen) Seroconversion Rate: the rate of subjects who are converted from seronegative with FAMA(Fluorescent Antibody to Membrane Antigen) VZV(Varicella Zoster Virus) antibody titer \< 1:4 before IP(Investigational Product) vaccination to seropositive with FAMA(Fluorescent Antibody to Membrane Antigen) VZV(Varicella Zoster Virus) antibody titer ≥ 1:4 at 6 weeks post-vaccination
Time frame: 6 weeks after IP(Investigational Product) vaccination
VZV (Varicella Zoster Virus) antibody GMT (Geometric Mean Titer) measured by FAMA(Fluorescent Antibody to Membrane Antigen) assay
Time frame: 6 weeks after IP(Investigational Product) vaccination
VZV (Varicella Zoster Virus) antibody GMT (Geometric Mean Titer) measured by gpELISA (Glycoprotein Enzyme Linked Immunosorbent Assay)
Time frame: 6 weeks after IP(Investigational Product) vaccination
Seroconversion rate measured by gpELISA (Glycoprotein Enzyme Linked Immunosorbent Assay)
\*gpELISA Seroconversion Rate : the rate of subjects who are converted from seronegative with \< 50mIU/mL before IP vaccination to seropositive with ≥ 50mIU/mL at 6 weeks post-vaccination
Time frame: 6 weeks after IP(Investigational Product) vaccination
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