This study assesses non-inferiority by comparing GMR(Geometric Mean Ratio) of NBP608 to Zostavax which are evaluated by gpELISA (Glycoprotein Enzyme Linked Immunosorbent Assay). Total of 824 healthy subjects (412 subjects per treatment arm) aged 50 and over are enrolled, and each subject is administered with single dose of vaccine which is randomly assigned.
This is a multi-center, randomized, double blinded, parallel-group study to assess the Immunogenicity and safety of NBP608 compared to Zostavax which are indicated for the prevention of herpes zoster. Total of 824 healthy subjects aged 50 and over are enrolled, and each subject is administered with single dose of vaccine which is randomly assigned in 1:1 ratio. Stratified randomization for age group is used to achieve the balance of treatment assignment within age strata. Total of five visits are scheduled including two visits via telephone contact. Blood sampling is conducted for immunogenicity assessment before and 6 weeks after vaccination at Visit 2 and Visit 4 respectively. Safety is monitored 1 week, 6 weeks and 26 weeks after vaccination through Visit 3\*, Visit 4 and Visit 5\* (\* telephone contact)
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
824
Korea University Guro Hospital
Seoul, Guro-gu, South Korea
GMR(Geometric Mean Ratio) of VZV(Varicella-Zoster Virus) antibody titer measured by gpELISA(Glycoprotein Enzyme-Linked Immnosorbent Assay)
The geometric mean fold rise of subjects' VZV(Varicella zoster virus) antibody titers of NBP608 from prevaccination to 6weeks postvaccination
Time frame: 6 weeks after IP(Investigational Product) vaccination
GMR(Geometric Mean Ratio) ratio of NBP608 to Zostavax measured by gpELISA
Non-inferiority assessment by comparing GMR(Geometric Mean Ratio) of NBP608 to Zostavax
Time frame: 6 weeks after IP(Investigational Product) vaccination
VZV-CMI(Varicella Zoster Virus-Cell Mediated Immnogenicity) response measured by IFN-γ(Interferon-gamma) ELISPOT (Enzyme-Linked Immunospot)
Time frame: 6 weeks after IP(Investigational Product) vaccination
VZV-CMI(Varicella Zoster Virus-Cell Mediated Immnogenicity) response measured by IL-2(Interleukin-2) ELISPOT (Enzyme-Linked Immunospot)
Time frame: 6 weeks after IP(Investigational Product) vaccination
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