Zostavax
BiologicalOther names: Zoster vaccine live
NCT Number: NCT00561080
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®
Looking for future studies?
Notify Me70 year and older
All sexes
Interventional
Phase 3
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
Other names: Zoster vaccine live
Time frame: 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)
Blood samples taken at 4 weeks post each vaccination to determine the geometric mean titer (GMT) of VZV antibodies via Glycoprotein Enzyme Linked Immunosorbent Assay (gpELISA).
Time frame: 4 weeks post-dose (Month 1)
Blood sample taken at 4 weeks post vaccination to determine the geometric mean titer (GMT) of VZV antibodies via gpELISA.
Time frame: Predose and 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)
Blood sample taken at predose (Day 0) and 4 weeks post each vaccination to determine the geometric mean titer (GMT) of VZV antibodies via gpELISA. The GMFR was calculated following each vaccination as GMT Post-dose/GMT Pre-vaccination
Time frame: 1 year post final dose for Groups 1, 2, and 3 (Group 1: Month 12; Group 2: 13 Month 13; and Group 3: Month 15)
Blood sample taken at 1 year post last vaccination to determine the geometric mean titer (GMT) of varicella antibodies via gpELISA.
Time frame: predose 1 and 1 year post-last dose (Group 1: Month 12; Group 2: 13 Month 13; and Group 3: Month 15)
Blood sample taken at predose and 1 year post last vaccination to determine the GMFR of varicella antibodies via gpELISA. Geometric mean fold rise was calculated for each arm as GMT 12-month post last dose divided by pre-vaccination GMT.
Time frame: 24 and 36 months post-last dose
Blood sample taken at 36 months post last-vaccination to determine the geometric mean titer (GMT) of varicella antibodies via gpELISA.
Time frame: Predose 1 and 24 and 36 months post-last dose
Blood samples were to be taken at predose and 24 months post- last vaccination in Groups 1 , 2, and 3 to determine the GMFR of varicella antibodies via gpELISA. Geometric mean fold rise was to be calculated for each arm as GMT 24-month post last dose divided by pre-vaccination GMT.
Time frame: up to 4 days after 1st vaccination
Participants entered data into daily dairy card regarding previously identified possible injection site reactions of erythema, injection site swelling or injection site pain
Time frame: up to 4 days after 2nd vaccination
Participants entered data into daily dairy card regarding previously identified possible injection site reactions of erythema, injection site swelling or injection site pain
Time frame: up to 28 days after 1st of study drug
The percentage of participants who reported an injection site reaction that was not specifically prompted by the diary card within 28 day of 1st vaccination was recorded.
Time frame: up to 28 days post-dose 2
The percentage of participants that reported an injection site reaction that was not specifically prompted by the diary card within 28 days post-dose 2 was recorded.
Time frame: up to 28 days post-dose 1
Percentage of participants who reported herpes zoster or zoster-like rash following the 1st dose of vaccine were recorded.
Time frame: up to 28 days post-dose 2
Percentage of participants who reported herpes zoster or zoster-like rash following the 2nd dose of vaccine were recorded.
Time frame: up to 28 days post-dose 1
Percentage of participants that reported varicella or varicella-like rash following the 1st dose of vaccine were recorded.
Time frame: up to 28 days post-dose 2
Percentage of participants that reported varicella or varicella-like rash following the 2nd dose of vaccine were recorded.
Time frame: up to 28 days after 1st vaccination
An adverse event (AE) was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study drug, whether or not considered related to the use of the product. Adverse events that were considered systemic (not localized) were summarized
Time frame: up to 28 days after 2nd vaccination
An adverse event (AE) was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study drug, whether or not considered related to the use of the product. Adverse events that were considered systemic (not localized) were summarized,
Time frame: up to 28 days after 1st vaccination
An adverse event (AE) was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study drug, whether or not considered related to the use of the product. Adverse events that were considered systemic (not localized) and were reported as at least possibly related to the vaccine were summarized
Time frame: up to 28 days after 2nd vaccination
An adverse event (AE) was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the study drug, whether or not considered related to the use of the product. Adverse events that were considered systemic (not localized) and were reported as at least possibly related to the vaccine were summarized,
Time frame: up to 28 days after 1st vaccination
A serious adverse event (SAE) is any adverse event that results in death, is life threatening, results in a persistent or significant disability/incapacity, results in hospitalization or prolongs an existing hospitalization, is a congenital anomaly/birth defect, is a cancer, is an overdose, or is considered an "other important medical event" based on medical judgement. The percentage of participants who reported an SAE within 28 days of 1st dose of vaccine were recorded.
Time frame: up to 28 days after 2nd vaccination
A serious adverse event (SAE) is any adverse event that results in death, is life threatening, results in a persistent or significant disability/incapacity, results in hospitalization or prolongs an existing hospitalization, is a congenital anomaly/birth defect, is a cancer, is an overdose, or is considered an "other important medical event" based on medical judgement. The percentage of participants who reported an SAE within 28 days of 1st dose of vaccine were recorded.
Time frame: up to end of study (approximately 15 months)
A serious adverse event (SAE) is any adverse event that results in death, is life threatening, results in a persistent or significant disability/incapacity, results in hospitalization or prolongs an existing hospitalization, is a congenital anomaly/birth defect, is a cancer, is an overdose, or is considered an "other important medical event" based on medical judgement. The percentage of participants who reported an SAE during the entire study period that was considered at least possibly -related to the vaccine were recorded.
Time frame: up to end of study (approximately 15 months)
The number of participants who died for any reason during the study was summarized.
Merck Sharp & Dohme LLC
Industry
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
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.