The purpose of this study is to evaluate end of shelf-life potency in terms of the immunogenicity and safety of GSK Biologicals' trivalent MMR vaccine, by comparing it to Merck \& Co., Inc.'s MMR vaccine, which is approved for use in the United States (US).
This trial is a Phase IIIA, randomized, observer-blind, controlled, multi-center, multi-country study with four parallel groups. This study will evaluate the immunogenicity and safety of GSK Biologicals' trivalent investigational MMR vaccine (referred to as Inv\_MMR vaccine, throughout this document) in contrast to the US standard of care comparator vaccine (M-M-R II, Merck and Co., Inc., referred to as Com\_MMR throughout this document) in children during their second year of life. The first dose of this two-dose study is designed to establish the end of shelf-life potency of Inv\_MMR vaccine. The Inv\_MMR vaccine will be given as one of two lots; one of a minimum potency, designated Inv\_MMR\_Min; and the other at a mid-range or medium potency designated Inv\_MMR\_Med to two groups. The second dose for both of these Inv\_MMR groups will have a potency within the release range of the marketed vaccine. The Com\_MMR vaccine will consist of two lots designated Com\_MMR\_L1 and Com\_MMR\_L2 and will be analyzed as pooled lots within the study. The first MMR vaccine dose will be co-administered with Varivax, Havrix and (in the US sub-cohort only) Prevnar 13 which are routinely administered to children of this age in the US.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
4,538
Subjects receive one dose of either minimum (Inv\_MMR\_Min) or medium (Inv\_MMR\_Med) potency lot at Day 0 and a dose of separate potency lot (Inv\_MMR\_Release) at Day 42, administered subcutaneously in the triceps region of the left arm.
Subjects receive two doses of either Lot 1 or Lot 2, one at Day 0 and one at Day 42, administered subcutaneously in the triceps region of the left arm.
Subjects receive one dose co-administered subcutaneously with the study vaccines (Priorix and M-M-R II), in the triceps region of right arm, at Day 0.
Percentage of Subjects With Anti-measles Virus Antibody Concentration Equal to or Above the Cut-off-value (by Enzyme-linked Immunosorbent Assay [ELISA])
For measles virus, a seroresponse was defined as post-vaccination anti-measles virus antibody concentration equal or above \[≥\] 200 mIU/mL (ELISA) among subjects who were seronegative (antibody concentration less than \[\<\] 150 mIU/mL) before dose 1. Criteria to demonstrate an acceptable immune response of Inv\_MMR\_Min/Inv\_MMR\_Med vaccine in terms of seroresponse rate for measles virus at Day 42: The lower limit of the two-sided 97.5% CI for the seroresponse rate of Inv\_MMR\_Min/Inv\_MMR\_Med was to be ≥ 90% for antibodies to measles virus.
Time frame: At Day 42
Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value (by ELISA)
For mumps virus, a seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥ 10 EU/mL (ELISA) among subjects who were seronegative (antibody concentration \< 5 EU/mL) before dose 1. Criteria to demonstrate an acceptable immune response of Inv\_MMR\_Min/Inv\_MMR\_Med vaccine in terms of seroresponse rate for mumps virus at Day 42: The lower limit of the two-sided 97.5% CI for the seroresponse rate of Inv\_MMR\_Min/Inv\_MMR\_Med was to be ≥ 90% for antibodies to mumps virus.
Time frame: At Day 42
Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value (by Plaque Reduction Neutralization Test [PRNT])
For mumps virus as measured by PRNT, a seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥ 4 End point Dilution 50% (ED50) (PRNT) among subjects who were seronegative (antibody concentration \< 2.5 ED50) before dose 1.
Time frame: At Day 42
Percentage of Subjects With Anti-rubella Virus Antibody Concentration Equal to or Above the Cut-off-value (by ELISA)
For rubella virus, a seroresponse was defined as post-vaccination anti-rubella virus antibody concentration ≥ 10 IU/mL (ELISA) among subjects who were seronegative (antibody concentration \< 4 IU/mL) before dose 1. Criteria to demonstrate an acceptable immune response of Inv\_MMR\_Min/Inv\_MMR\_Med vaccine in terms of seroresponse rate for rubella virus at Day 42: The lower limit of the two-sided 97.5% CI for the seroresponse rate of Inv\_MMR\_Min/Inv\_MMR\_Med was to be ≥ 90% for antibodies to mumps virus.
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Subjects receive one dose co-administered intramuscularly with the study vaccines (Priorix and M-M-R II), in the anterolateral region of the right thigh, at Day 0.
US Subjects receive one dose co-administered intramuscularly with the study vaccines (Priorix and M-M-R II), in the anterolateral region of the left thigh, at Day 0.
GSK Investigational Site
Birmingham, Alabama, United States
GSK Investigational Site
Phoenix, Arizona, United States
GSK Investigational Site
Phoenix, Arizona, United States
GSK Investigational Site
Jonesboro, Arkansas, United States
GSK Investigational Site
Little Rock, Arkansas, United States
GSK Investigational Site
West Covina, California, United States
GSK Investigational Site
Altamonte Springs, Florida, United States
GSK Investigational Site
Miami, Florida, United States
GSK Investigational Site
Miami Lakes, Florida, United States
GSK Investigational Site
Naples, Florida, United States
...and 71 more locations
Time frame: At Day 42
Anti-measles Virus Antibody Concentrations (by ELISA)
Antibody concentrations were expressed as Geometric Mean Concentrations (GMCs) in mIU/mL.
Time frame: At Day 42
Anti-mumps Virus Antibody Concentrations (by ELISA)
Antibody concentrations were expressed as GMCs in EU/mL.
Time frame: At Day 42
Anti-mumps Virus Antibody Concentrations (by PRNT)
Antibody concentrations were expressed as Geometric Mean Titers (GMTs).
Time frame: At Day 42
Anti-rubella Virus Antibody Concentrations (by ELISA)
Antibody concentrations were expressed as GMCs in IU/mL.
Time frame: At Day 42
Percentage of Subjects With Anti-measles Virus Antibody Concentration Equal to or Above the Cut-off-value (by ELISA)
For measles virus, a seroresponse was defined as post-vaccination anti-measles virus antibody concentration ≥ 200 mIU/mL (ELISA) among subjects who were seronegative (antibody concentration \< 150 mIU/mL) before dose 1.
Time frame: At Day 84
Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value (by ELISA)
For mumps virus, a seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥ 10 EU/mL (ELISA) among subjects who were seronegative (antibody concentration \< 5 EU/mL) before dose 1.
Time frame: At Day 84
Percentage of Subjects With Anti-rubella Virus Antibody Concentration Equal to or Above the Cut-off-value (by ELISA)
For rubella virus, a seroresponse was defined as post-vaccination anti-rubella virus antibody concentration ≥ 10 IU/mL (ELISA) among subjects who were seronegative (antibody concentration \< 4 IU/mL) before dose 1.
Time frame: At Day 84
Anti-measles Virus Antibody Concentrations (by ELISA)
Antibody concentrations were expressed as GMCs in mIU/mL.
Time frame: At Day 84
Anti-mumps Virus Antibody Concentrations (by ELISA)
Antibody concentrations were expressed as GMCs in EU/mL.
Time frame: At Day 84
Anti-rubella Virus Antibody Concentrations (by ELISA)
Antibody concentrations were expressed as GMCs in IU/mL.
Time frame: At Day 84
Number of Subjects With Any Solicited Local Adverse Events (AEs) Post Dose 1
Assessed solicited local AEs were pain, redness and swelling. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 4-day (Days 0-3) post-vaccination period
Number of Subjects With Any Solicited Local AEs Post Dose 2
Assessed solicited local AEs were pain, redness and swelling. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 4-day (Days 0-3) post-vaccination period
Number of Subjects With Any Solicited General AEs Post Dose 1
Assessed solicited general AEs were drowsiness, irritability/fussiness and loss of appetite. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 15-day (Days 0-14) post-vaccination period
Number of Subjects Reporting Any Fever Post Dose 1
Any fever = Fever (axillary) ≥ 38°C.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any Fever Post Dose 2
Any fever = Fever (axillary) ≥ 38°C.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any Rash Post Dose 1
Assessed were any localized or generalized rash, rash with fever, varicella-like rash and measles/rubella-like rash. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any Rash Post Dose 2
Assessed were any localized or generalized rash, rash with fever, varicella-like rash and measles/rubella-like rash. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any MMR Specific Solicited General AEs Post Dose 1
Assessed MMR specific solicited general AEs were any suspected signs of meningism including febrile convulsions and parotid/salivary gland swelling. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any MMR Specific Solicited General AEs Post Dose 2
Assessed MMR specific solicited general AEs were any suspected signs of meningism including febrile convulsions and parotid/salivary gland swelling. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any Unsolicited AES Post Dose 1
Unsolicited AE was defined as any AE reported in reported in addition to those solicited during the clinical study and any solicited AE with onset outside the specified period of follow-up for solicited AEs. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any Unsolicited AES Post Dose 2
Unsolicited AE was defined as any AE reported in reported in addition to those solicited during the clinical study and any solicited AE with onset outside the specified period of follow-up for solicited AEs. Any = Occurrence of the AE regardless of intensity grade or relation to vaccination.
Time frame: During the 43-day (Days 0-42) post-vaccination period
Number of Subjects Reporting Any AEs of Specific Interest
AEs of specific interest included new onset chronic disease (NOCD) (e.g., autoimmune disorders, asthma, type I diabetes, vasculitis, celiac disease, conditions associated with sub-acute or chronic thrombocytopenia and allergies) and AEs prompting emergency room (ER) visits.
Time frame: From Day 0 through the end of the study (Day 222)
Number of Subjects Reporting Any Serious Adverse Events (SAEs)
SAEs assessed include any untoward medical occurrences that resulted in death, were life-threatening, required hospitalization or prolongation of existing hospitalization or resulted in disability/incapacity.
Time frame: From Day 0 through the end of the study (Day 222)