In this study, the concentration of antibody to the vaccine one year, three and five years after vaccination in subjects who were vaccinated with GSK Biologicals' meningococcal vaccine GSK134612 in a previous study (whose objectives \& outcome measures are presented in a separate protocol posting with NCT number =00471081) will be evaluated. The safety and immune response of a booster dose of vaccine GSK134612 administered at 5 years post-primary vaccination will also be evaluated. In addition, the immune response to a dose of vaccine GSK134612 administered to age-matched controls not previously given a meningococcal vaccine will be evaluated. This protocol posting has been updated further to protocol amendment 2, dated 28 october 2010. The sections impacted are summary, study design, outcome measures, intervention, and eligibility criteria.
GSK Biologicals has developed a meningococcal conjugate vaccine (GSK134612). This candidate vaccine has been shown to be well tolerated and immunogenic in toddlers. The purpose of this study is to evaluate the antibody persistence at approximately 1 year, 3 years and 5 years post-administration of one dose or two doses of GlaxoSmithKline (GSK) Biologicals' meningococcal vaccine GSK134612 when given to healthy toddlers 9-12 months of age. To evaluate, the safety and immunogenicity of a booster dose of GSK134612 administered to all eligible subjects at 5 years after the primary vaccination. To evaluate the safety and immunogenicity in a new group of subjects aged 5-6 years (naive control group) who will receive a single dose of vaccine GSK134612.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
387
One dose, as intramuscular injection
GSK Investigational Site
Benton, Arkansas, United States
GSK Investigational Site
Little Rock, Arkansas, United States
GSK Investigational Site
Antioch, California, United States
GSK Investigational Site
Fremont, California, United States
GSK Investigational Site
Hayward, California, United States
GSK Investigational Site
Santa Rosa, California, United States
GSK Investigational Site
Vacaville, California, United States
GSK Investigational Site
Lakewood, Colorado, United States
GSK Investigational Site
Littleton, Colorado, United States
GSK Investigational Site
Littleton, Colorado, United States
...and 4 more locations
Number of Subjects With Serum Bactericidal Assay (Using Human Complement) (hSBA) Titers ≥ the Cut-off
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed was greater than or equal to ( ≥) 1:8.
Time frame: At Year 1 (12 months post primary vaccination)
Number of Subjects With Serum Bactericidal Assay (Using Human Complement) (hSBA) Titers ≥ the Cut-off
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed was ≥ 1:8.
Time frame: At Year 3 (36 months post primnary vaccination)
Number of Subjects With Serum Bactericidal Assay (Using Human Complement) (hSBA) Titers ≥ the Cut-off Values
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed was ≥ 1:8.
Time frame: At Year 5 (60 months post primary vaccination)
Number of Subjects With hSBA-MenA, hSBA-MenC, hSBA-MenW-135, and hSBA-MenY Titers ≥ the Cut-off Values
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed was ≥ 1:4.
Time frame: At Year 1 (12 months post vaccination)
Number of Subjects With hSBA-MenA, hSBA-MenC, hSBA-MenW-135, and hSBA-MenY Titers ≥ the Cut-off Values
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed was ≥ 1:4.
Time frame: At Year 3 (36 months post primary vaccination)
Number of Subjects With hSBA-MenA, hSBA-MenC, hSBA-MenW-135, and hSBA-MenY Titers ≥ the Cut-off Values
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed was ≥ 1:4.
Time frame: At Year 5 (60 months post primary vaccination)
hSBA-MenA, hSBA-MenC, hSBA-MenW-135, and hSBA-MenY Antibody Titers
Titers are given as geometric mean titers (GMTs) for the serogroups hSBA-MenA, hSBA-MenC, hSBAMenW-135, and hSBA-MenY respectively, calculated on all subjects.
Time frame: At Year 1 (12 months post primary vaccination)
hSBA-MenA, hSBA-MenC, hSBA-MenW-135, and hSBA-MenY Antibody Titers
Titers are given as geometric mean titers (GMTs) for the serogroups hSBA-MenA, hSBA-MenC, hSBAMenW-135, and hSBA-MenY respectively, calculated on all subjects.
Time frame: At Year 3 (36 months post primary vaccination)
hSBA-MenA, hSBA-MenC, hSBA-MenW-135, and hSBA-MenY Antibody Titers
Titers are given as geometric mean titers (GMTs) for the serogroups hSBA-MenA, hSBA-MenC, hSBAMenW-135, and hSBA-MenY respectively, calculated on all subjects.
Time frame: At Year 5 (60 months post primary vaccination)
Number of Subjects With Titers ≥ the Cut-off for Meningococcal Polysaccharides A , C, W-135 and Y Serum Bactericidal Antibodies, Using Baby Rabbit Complement for Assay
rSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed were ≥ 1:8 and 1:128. The analysis was performed by GSK Biologicals' laboratory assay.
Time frame: At Year 1 (12 months post primary vaccination)
Number of Subjects With Titers ≥ the Cut-off, for MenA , MenC, MenW-135 and MenY Serum Bactericidal Antibodies, Using Baby Rabbit Complement
rSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed were ≥ 1:8 and 1:128. The analysis was performed by GSK Biologicals' laboratory assay.
Time frame: At Year 3 (36 months post primary vaccination)
Number of Subjects With Titers ≥ the Cut-off for Meningococcal Polysaccharides A , C, W-135 and Y Serum Bactericidal Antibodies, Using Baby Rabbit Complement for Assay
rSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off values assessed were ≥ 1:8 and 1:128. Titers were determined by Public Health England (PHE) laboratory assay.
Time frame: At Year 3 (36 months post primary vaccination)
Number of Subjects With Titers ≥ the Cut-off, for Meningococcal Polysaccharides A , C, W-135 and Y Serum Bactericidal Antibodies, Using Baby Rabbit Complement for Assay
rSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off values assessed were ≥ 1:8 and 1:128. The analysis was performed by GSK Biologicals' laboratory assay.
Time frame: At Year 5 (60 months post-primary vacccination).
Number of Subjects With Titers ≥ the Cut-off for Men-A , Men-C, Men-W-135 and Men-Y Serum Bactericidal Antibodies, Using Baby Rabbit Complement for Assay
rSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off values assessed were ≥ 1:8 and 1:128 determined by Public Health England (PHE) laboratory assay.
Time frame: At Year 5 (60 months post-primary vacccination)
rSBA Antibody Titers
Titers were given as geometric mean titers (GMTs) for the serogroups rSBA-MenA, rSBA-MenC, rSBAMenW-135, and rSBA-MenY respectively, as performed by GSK Biologicals' laboratory assay.
Time frame: At Year 1 (12 months post primary vaccination)
rSBA Antibody Titers.
Titers are given as geometric mean titers (GMTs) for the serogroups rSBA-MenA, rSBA-MenC, rSBAMenW-135, and rSBA-MenY respectively, as performed by GSK Biologicals' laboratory assay.
Time frame: At Year 3 (36 months post-primary vaccination)
rSBA Antibody Titers
Titers are given as geometric mean titers (GMTs) for the serogroups rSBA-MenA, rSBA-MenC, rSBA-MenW-135, and rSBA-MenY respectively. Titers were determined by Public Health England (PHE) laboratory assay.
Time frame: At Year 3 (36 months following primary vaccination)
rSBA Antibody Titers
Titers are given as geometric mean titers (GMTs), calculated on all subjects for the serogroups rSBA-MenA, rSBA-MenC, rSBAMenW-135, and rSBA-MenY respectively by GSK Biologicals' laboratory assay.
Time frame: At Year 5 (60 months post-primary vacccination)
rSBA Antibody Titers.
Titers are given as geometric mean titers (GMTs), calculated for all subjects for the serogroups rSBA-MenA, rSBA-MenC, rSBAMenW-135, and rSBA-MenY respectively. Titers were determined by Public Health England (PHE) laboratory assay.
Time frame: At Year 5 (60 months following primary vaccination)
Antibody to Polysacccharide N. Meningitidis Serogroup A, C, W-135 and Y (Anti-PSA, Anti-PSC, Anti-PSW-135 and Anti-PSY) Antibody Concentrations
Results were tabulated as geometric mean antibody concentration (GMC) calculated on all subjects, expressed in microgram per milliliter (μg/ml).
Time frame: At Year 1 (12 months post primary vaccination)
Number of Subjects With Anti-PSA, Anti-PSC, Anti-PSW-135 and Anti-PSY ≥ the Cut-off Values
The cut-off values for the assay were ≥ 0.3 μg/ml and ≥ 2.0 μg/ml respectively.
Time frame: At Year 1 (12 months post primary vaccination)
Number of Subjects With hSBA-MenA, hSBA-MenC, hSBA-MenW-135 and hSBA-MenY Titers ≥ Cut-off Values
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed were ≥ 1:4 or 1:8. This outcome measure only concerns the Nimenrix Naive Group.
Time frame: At Month 60 (pre-primary vaccination with Nimenrix vaccine)
hSBA-MenA, hSBA-MenC, hSBA-MenW-135 and hSBA-MenY Titers
Titers are given as geometric mean titers (GMTs) for the serogroups hSBA-MenA, hSBA-MenC, hSBAMenW-135, and hSBA-MenY respectively. This outcome measure only concerns the Nimenrix Naive Group.
Time frame: At Month 60 (pre-vaccination with Nimenrix vaccine)
Number of Subjects With rSBA-MenA, rSBA-MenC, rSBA-MenW-135 and rSBA-MenY Titers ≥ Cut-off Values
rSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off value assessed were ≥ 1:8 or 1:128. This outcome measure only concerns the Nimenrix Naive Group.
Time frame: At Month 60 (pre-primary vaccination with Nimenrix vaccine)
rSBA-MenA, rSBA-MenC, rSBA-MenW-135 and rSBA-MenY Antibody Titers
Titers are given as geometric mean titers (GMTs) for the serogroups rSBA-MenA, rSBA-MenC, rSBAMenW-135, and rSBA-MenY respectively. This outcome measure only concerns the Nimenrix Naive Group.
Time frame: At Month 60 (pre-primary vaccination with Nimenrix vaccine)
Number of Subjects With hSBA-MenA, hSBA-MenC, hSBA-MenW-135 and hSBA-MenY Titers ≥ Cut-off Values
hSBA antibody titers were assessed for the MenA, MenC, MenW-135, and MenY serogroups respectively. The antibody cut-off values assessed were ≥ 1:4 or 1:8.
Time frame: At Month 61, one month post-primary vaccination for Nimenrix Naive Group; one month post-booster for Nimenrix 1 and Nimenrix 2 Groups
hSBA-MenA, hSBA-MenC, hSBA-MenW-135 and hSBA-MenY Titers
Titers were given as geometric mean titers (GMTs) for the serogroups hSBA-MenA, hSBA-MenC,hSBAMenW-135, and hSBA-MenY respectively, calculated on all subjects.
Time frame: At Month 61, one month post-primary vaccination for Nimenrix Naive Group; one month post-booster for Nimenrix 1 and Nimenrix 2 Groups
Number of Subjects With Vaccine Response for hSBA-MenA, hSBA-MenC, hSBA-MenW-135 and hSBA-MenY Antibody Titers
Vaccine response was defines as: for initially seronegative subjects (pre-vaccination titer \< 1:4): hSBA post-vaccination antibody titers ≥ 1:8 and for seropositive subjects (pre-vaccination titers ≥ 1:4): hSBA antibody titers at least four times the pre-vaccination antibody titers.
Time frame: At Month 61, one month post-primary vaccination for Nimenrix Naive Group; one month post-booster for Nimenrix 1 and Nimenrix 2 Groups
Number of Subjects With rSBA-MenA, rSBA-MenC, rSBAMenW-135 and rSBA-MenY Titers ≥ the Cut-off Values
The cut-off values for the assay were ≥1:8 and ≥1:128. Titers were determined by Public Health England (PHE) laboratory assay.
Time frame: At Month 60 and 61 (just prior to and one month post-primary vaccination for Nimenrix Naive Group; one month post-booster vaccination for Nimenrix 1 and Nimenrix 2 Groups)
rSBA Antibody Titers
Titers are given as geometric mean titers (GMTs) for the serogroups rSBA-MenA, rSBA-MenC, rSBAMenW-135, and rSBA-MenY respectively, determined by Public Health England \[PHE\] laboratory assay.
Time frame: At Month 60 and 61 (just prior to and one month post-primary vaccination for Nimenrix Naive Group; one month post-booster for Nimenrix 1 and Nimenrix 2 Groups)
Number of Subjects With Vaccine Response With rSBA-MenA, rSBA-MenC, hSBA-MenW-135 and rSBA-MenY Antibody Titers
Vaccine response was defined as: for initially seronegative subjects: antibody titer ≥ 1:32 at post-vaccination; and for initially seropositive subjects: antibody titer at post-vaccination ≥ 4 fold the pre-vaccination antibody titer. Titers were determined by Public Health England (PHE) laboratory assay.
Time frame: At Month 61 (one month post-primary vaccination for Nimenrix Naive Group; one month post-booster for Nimenrix 1 and Nimenrix 2 Groups)
Number of Subjects Reporting Any and Grade 3 Solicited Local Symptom
Assessed solicited local symptoms were pain, redness and swelling. Any was defined as occurrence of the symptom regardless of intensity grade. Grade 3 pain was defined as pain that prevented normal activity. Grade 3 redness/swelling was defined as redness/swelling spreading beyond 50 millimeters (mm) of injection site.
Time frame: During the 4-day (Days 0-3) post-primary vaccination for Nimenrix Naive Group and post-booster for Nimenrix 1 and Nimenrix 2 Groups
Number of Subjects Reporting Any, Grade 3 and Related Solicited General Symptom
Assessed solicited general symptoms were fatigue, fever \[defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)\], headache and gastrointestinal. Any was defined as occurrence of the symptom regardless of their intensity grade or relationship to study vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever higher than (\>) 39.5 °C. Related = symptom assessed by the investigator as related to the vaccination.
Time frame: During the 4-day (Days 0-3) post-primary vaccination for Nimenrix Naive Group and post-booster for Nimenrix 1 and Nimenrix 2 Groups
Number of Subjects Reporting Any Unsolicited Adverse Events (AEs)
An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.
Time frame: During the 31-day (Days 0-30) post-primary vaccination for Nimenrix Naive Group and post-booster for Nimenrix 1 and Nimenrix 2 Groups
Number of Subjects Reporting Any Serious Adverse Events (SAEs)
Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.
Time frame: During the 181-day (Days 0-180) post primary vaccination for Nimenrix Naive Group and post booster for Nimenrix 1 and Nimenrix 2 Groups
Number of Subjects Reporting Any New Onset of Chronic Illnesses (NOCIs)
NOCIs include autoimmune disorders, asthma, type I diabetes, allergies.
Time frame: During the 181-day (Days 0-180) post primary vaccination for Nimenrix Naive Group and post booster for Nimenrix 1 and Nimenrix 2 Groups
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