Please select the outcome measures that correspond to the clinical trial below.
Title: An Open-label, Randomised, Comparative, Multi-centre Study of the Immunogenicity and Safety of a 1-dose Regimen and Different 2-dose Regimens of a Zoster Vaccine (Live), ZOSTAVAX ®, in Subjects ≥ 70 Years of Age
Brief Summary: Primary objective:

Immunogenicity To demonstrate that a second dose of ZOSTAVAX® elicits higher varicella-zoster virus (VZV) antibody titres than a first dose of ZOSTAVAX® whether given as a 0-1 month schedule or as a 0-3 month schedule in subjects ≥70 years of age as measured at 4 weeks post-vaccination

Secondary objectives Immunogenicity

* To summarise the VZV antibody titres at 4 weeks post-vaccination after a 1-dose regimen and 4 weeks post-vaccination after each dose of each 2-doses regimen of ZOSTAVAX®.
* To compare the VZV antibody titres at 12 months after completion of a 1-dose regimen with the VZV antibody titres at 12 months after completion of each 2-doses regimen of ZOSTAVAX®
* To summarise the VZV antibody titres at 24 and 36 months after completion of a 1-dose regimen and at 24 and 36 months after completion of each 2-doses regimen of ZOSTAVAX®


Options:
A: Geometric Mean Titer (GMT) of Varicella Zoster Virus (VZV) Antibodies 4 Weeks After Each Vaccination: Groups 2 and 3 (4 weeks post-dose 1 (Month 1 for all groups) and 4 weeks post-dose 2 (Month 2 for Group 2 and Month 4 for Group 3))
B: Geometric Mean Titer (GMT) of Varicella-zoster Virus (VZV) Glycoprotein Enzyme-linked Immunosorbent Assay (gpELISA) Antibody (Baseline and 4 weeks after ZOSTAVAX™ vaccination (Week 4 for Concomitant group and Week 8 for Nonconcomitant group)); Geometric Mean Fold Rise From Baseline in VZV gpELISA Antibody Titers (Baseline and 4 weeks after ZOSTAVAX™ vaccination (Week 4 for Concomitant group and Week 8 for Nonconcomitant group)); Geometric Mean Titers of H1N1-specific Influenza Virus Antibody (Baseline and 4 weeks after Influenza vaccination (Week 4)); Geometric Mean Titers of H3N2-specific Influenza Virus Antibody (Baseline and 4 weeks after Influenza vaccination (Week 4)); Geometric Mean Titers of B-Yamagata-specific Influenza Virus Antibody (Baseline and 4 weeks after Influenza vaccination (Week 4)); Geometric Mean Titers of B-Victoria-specific Influenza Virus Antibody (Baseline and 4 weeks after Influenza vaccination (Week 4))
C: Number of Subjects With Any Episodes of Herpes Zoster (HZ) (During the entire study period (3 to 5 year period following Day 0)); Outcome Measure for the Pooled Analysis of Combined Data From Studies ZOSTER-006 (NCT01165177) and ZOSTER-022 (NCT01165229): Number of Subjects With Post-herpetic Neuralgia (PHN) (During the entire study period (3 to 5 year period following Day 0)); Outcome Measure for the Pooled Analysis of Combined Data From Studies Zoster-006 (NCT01165177) and Zoster-022 (NCT01165229): Number of Subjects With Confirmed HZ (During the entire study period (3 to 5 year period following Day 0))
D: Frequencies of Glycoprotein E (gE)-Specific Cluster of Differentiation 4 (CD4) / CD8 T Cells With at Least Two Antigen-specific Cytokines: Interferon Gamma (IFN-γ), Interleukin 2 (IL-2), Tumor Necrosis Factor Alpha (TNF-α), CD 40 Ligand (CD40L). (At Month 30 after the first vaccination.); Frequencies of Varicella Zoster Virus (VZV)-Specific CD4 / CD8 T Cells With at Least Two Antigen-specific Cytokines (IFN-γ, IL-2, TNF-α, CD40L). (At Month 30 after the first vaccination); Frequencies of Glycoprotein E (gE)-Specific CD4 / CD8 T Cells With at Least Two Antigen-specific Cytokines (IFN-γ, IL-2, TNF-α, CD40L). (At Month 42 after the first vaccination); Frequencies of Varicella Zoster Virus (VZV)-Specific CD4 / CD8 T Cells With at Least Two Antigen-specific Cytokines (IFN-γ, IL-2, TNF-α, CD40L). (At Month 42 after the first vaccination)

Answer: A