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Immunogenicity and Safety of MenACWY in Infants (6 & 12 Months)

A Phase 2, Partially Randomized, Open Label, Multicenter Study to Evaluate the Safety and Immunogenicity After One or Two Doses of Novartis (Formerly Chiron) Meningococcal ACWY Conjugate Vaccine Administered to Healthy Infants and Young Children

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00310856
Enrollment
175
Registered
2006-04-05
Start date
2005-06-30
Completion date
2006-11-30
Last updated
2018-10-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Meningococcal Meningitis

Keywords

meningitis, children, vaccine

Brief summary

To assess the immunogenicity of Novartis (formerly Chiron) Meningococcal ACWY conjugate vaccine (MenACWY) when administered as a two-dose schedule at 6 and 12 months of age.

Interventions

BIOLOGICALMenACWY-CRM

Subjects received the full dose (0.5 mL) of MenACWY-CRM, obtained by extemporaneous mixing of lyophilized MenA powder component and the MenCWY suspension, administered by IM injection into the anterolateral area of the right thigh.

BIOLOGICALMenC-CRM

One dose (0.5 mL) of MenC-CRM was obtained by extemporaneous mixing just before injection of the lyophilized MenC component and a saline solvent, administered by IM injection into the arm region.

BIOLOGICALDTaP-Hib-IPV
BIOLOGICALPC7

One dose (0.5 mL) of PC7, supplied in pre-filled syringe, administered by IM injection into the anterolateral area of the left thigh.

BIOLOGICALMMR
BIOLOGICALVaricella

Sponsors

Novartis Vaccines
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Months to 12 Months
Healthy volunteers
Yes

Inclusion criteria

Inclusion criteria for Groups I (MenACWY-CRM\_6-12 M) and II (MenACWY-CRM\_12 M) Subjects eligible for enrollment in the study were healthy infants: 1. who were 6 months old and who were born after full-term pregnancy with an estimated gestational age of 37 weeks or greater and a birth weight 2.5 kg or greater; 2. who previously received two doses of PC7 and DTaP-Hib-IPV vaccines; 3. for whom a parent/legal guardian gave written informed consent, after the nature of the study was explained; 4. who were available for all the visits scheduled in the study; 5. who were in good health as determined by medical history, physical examination, and clinical judgment of the investigator. Inclusion criteria for Group III (MenC-CRM\_12 M\_MenACWY-CRM\_18 M) Subjects eligible for enrollment in the study were healthy infants: 1. who were 12 months old; 2. who previously received three doses of DTaP-Hib-IPV (Pentacel) vaccines; 3. for whom a parent/legal guardian gave written informed consent, after the nature of the study was explained; 4. who were available for all the visits scheduled in the study; 5. who were in good health as determined by medical history, physical examination, and clinical judgment of the investigator.

Exclusion criteria

Subjects were not to be included in this study if: 1. their parents/legal guardians were unwilling or unable to give written informed consent to participate in the study; 2. they previously received any meningococcal vaccine; 3. they had a previously ascertained or suspected disease caused by Neisseria meningitidis (N meningitidis); 4. they had a history of any anaphylactic shock, asthma, urticaria, or other allergic reaction after previous vaccinations or known hypersensitivity to any vaccine component; 5. they had experienced significant acute or chronic infection within the previous 7 days or had experienced fever (38.0ºC or greater) within the previous 3 days; 6. they had any present or suspected serious acute disease (e.g., leukemia, lymphomas), or chronic disease (e.g., with signs of cardiac failure, renal failure, severe malnutrition, or insulin-dependent diabetes), or progressive neurological disease, or a genetic anomaly/known cytogenic disorders (e.g., Down's syndrome), or who had a diagnosed cardiac defect or abnormality of hemodynamic significance (e.g., ventricular septal defect, patent ductus arteriosus, or atrial septal defect); 7. they had a known or suspected autoimmune disease or impairment /alteration of immune function resulting from use of (for example): * any immunosuppressive therapy since birth; * immunostimulants since birth; * any systemic corticosteroid administered for more than 5 days or in a daily dose of greater than 1 mg/kg/day prednisone or equivalent for 5 days or less in the previous 30 days; 8. they had a suspected or known HIV infection or HIV-related disease; 9. they had received parenteral immunoglobulin preparation, blood products, and/or plasma derivatives within the past 90 days and were expected to receive it for the full length of the study; 10. they had a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time; 11. they had a history of seizure disorder: * febrile seizure; * any other seizure disorder; 12. they had taken systemic antibiotics (either oral or parenteral) within the previous 14 days (EXCEPTION: subjects who had received an oral or parenteral β-lactam antibiotic \[e.g.: penicillin, amoxicillin, ceftriaxone, cefuroxime or cephalexin\] could have been enrolled 7 days following the last dose); 13. their parents/legal guardians were planning to leave the area of the study center before the end of the study period; 14. they had any condition which, in the opinion of the investigator, might have interfered with the evaluation of the study objectives.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleBefore and 1 month after 2-dose or 1-dose scheduleImmunogenicity was measured as the percentage of subjects with hSBA titers ≥1:4 against meningococcal serogroups A, C, W and Y, evaluated by serum bactericidal assay using human complement (hSBA), before vaccination and 1 month after 2-dose schedule of MenACWY-CRM administered at 6 and 12 months of age (MenACWY-CRM\_6-12 M group) or 1-dose schedule administered at 12 months (MenACWY-CRM\_12 M group)

Secondary

MeasureTime frameDescription
Geometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleBefore and 1 month after 2-dose or 1-dose scheduleThe immune response was measured as the hSBA geometric mean titers (GMTs) against meningococcal serogroups A, C, W and Y, before vaccination and 1 month after 2-dose schedule of MenACWY-CRM administered at 6 and 12 months of age (MenACWY-CRM\_6-12 M group) or 1-dose schedule administered at 12 months of age (MenACWY-CRM\_12 M group)
Percentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleBefore and 1 month after 2-dose or 1-dose scheduleImmunogenicity was measured as the percentage of subjects with hSBA titers ≥1:8 against meningococcal serogroups A, C, W and Y, before vaccination and 1 month after 2-dose schedule of MenACWY-CRM administered at 6 and 12 months of age (MenACWY-CRM\_6-12 M group) or 1-dose schedule administered at 12 months of age (MenACWY-CRM\_12 M)
Percentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgeBefore and 1 month after MenC-CRM vaccination at 12 monthsImmunogenicity was measured as the percentage of subjects who achieved hSBA titers ≥1:4 or ≥1:8 against meningococcal serogroup C, before and 1 month after one vaccination of MenC-CRM administered concomitantly with Prevnar at 12 months of age
Geometric Mean hSBA Titers Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgeBefore and 1 month after MenC-CRM vaccination at 12 monthsThe immune response was measured as the hSBA GMT against meningococcal serogroup C, before and 1 month after one vaccination of MenC-CRM administered concomitantly with Prevnar at 12 months of age
Percentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeBefore and 1 month after MenACWY-CRM vaccination at 18 monthsImmunogenicity was measured as the percentage of subjects who achieved hSBA titers ≥1:4 or ≥1:8 against meningococcal serogroups A, W and Y, before and 1 month after one vaccination of MenACWY-CRM administered concomitantly with Pentacel at 18 months of age
hSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeBefore and 1 month after MenACWY-CRM vaccination at 18 monthsThe immune response was measured as the hSBA GMTs against meningococcal serogroups A, W and Y, before and 1 month after one vaccination of MenACWY-CRM administered concomitantly with Pentacel at 18 months of age
Percentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgeBefore and 1 month after MenACWY-CRM vaccination at 18 monthsBooster response was measured as the percentage of subjects who achieved hSBA titers ≥1:4 or ≥1:8 against meningococcal serogroup C, before and 1 month after MenACWY-CRM vaccination administered at 18 months of age, following one vaccination of MenC-CRM at 12 months of age
hSBA GMT Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgeBefore and 1 month after MenACWY-CRM vaccination at 18 monthsBooster response was measured as the hSBA GMT against meningococcal serogroup C, before and 1 month after MenACWY-CRM vaccination administered at 18 months of age, following one vaccination of MenC-CRM at 12 months of age
Number of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationFrom day 1 through day 7 after any vaccinationThe safety was assessed as the number of subjects who reported solicited local and systemic reactions from day 1 through day 7 following any vaccination of MenACWY-CRM, MenC-CRM and concomitant vaccination

Countries

Canada

Participant flow

Recruitment details

Subjects were enrolled at three sites in Canada.

Pre-assignment details

All enrolled subjects were included in the study.

Participants by arm

ArmCount
MenACWY-CRM_6-12 M
Subjects received 2 doses of MenACWY-CRM at 6 and 12 months of age. Subjects also received routine vaccines: 2 doses of PC7 (at 6 and 12 months) and 1 dose each of DTaP-Hib-IPV (at 6 months) and MMR+Varicella (at 13 months).
64
MenACWY-CRM_12 M
Subjects received 1 dose of MenACWY-CRM at 12 months of age. Subjects also received routine vaccines: 2 doses of PC7 (at 6 and 12 months) and 1 dose each of DTaP-Hib-IPV (at 6 months) and MMR+Varicella (at 13 months).
61
MenC-CRM_12 M_MenACWY-CRM_18 M
Subjects received 1 dose each of MenC-CRM (at 12 months) and MenACWY-CRM (at 12 months). Subjects also received routine vaccines: 1 dose each of PC7 (at 12 months), MMR+Varicella (at 13 months) and DTaP-Hib-IPV (at 18 months).
50
Total175

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyInappropriate enrollment110
Overall StudyLost to Follow-up126
Overall StudyUnable to classify100
Overall StudyWithdrawal by Subject222

Baseline characteristics

CharacteristicMenACWY-CRM_6-12 MMenACWY-CRM_12 MMenC-CRM_12 M_MenACWY-CRM_18 MTotal
Age, Continuous6.0 Months
STANDARD_DEVIATION 0.2
6.0 Months
STANDARD_DEVIATION 0
12.1 Months
STANDARD_DEVIATION 0.2
7.7 Months
STANDARD_DEVIATION 2.8
Sex: Female, Male
Female
25 Participants31 Participants21 Participants77 Participants
Sex: Female, Male
Male
39 Participants30 Participants29 Participants98 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
62 / 6458 / 6150 / 50
serious
Total, serious adverse events
3 / 642 / 612 / 50

Outcome results

Primary

Percentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose Schedule

Immunogenicity was measured as the percentage of subjects with hSBA titers ≥1:4 against meningococcal serogroups A, C, W and Y, evaluated by serum bactericidal assay using human complement (hSBA), before vaccination and 1 month after 2-dose schedule of MenACWY-CRM administered at 6 and 12 months of age (MenACWY-CRM\_6-12 M group) or 1-dose schedule administered at 12 months (MenACWY-CRM\_12 M group)

Time frame: Before and 1 month after 2-dose or 1-dose schedule

Population: Analysis was done on per protocol (PP) population, i.e subjects in the exposed population who received all the relevant doses of vaccines correctly; and provided evaluable serum samples at the relevant time points; and had no major protocol violation as defined prior to unblinding.

ArmMeasureGroupValue (NUMBER)
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Prevaccination (N=50,53)10 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Postvaccination (N=50,53)88 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Prevaccination85 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Postvaccination100 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Prevaccination (N=40,41)85 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Postvaccination (N=40,41)100 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Prevaccination (N=53,54)72 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Postvaccination (N=53,54)100 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Postvaccination (N=53,54)78 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Prevaccination (N=50,53)0 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Prevaccination (N=40,41)2 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Postvaccination (N=50,53)74 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Prevaccination (N=53,54)0 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Prevaccination2 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Postvaccination (N=40,41)95 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:4 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Postvaccination96 Percentage of subjects
Secondary

Geometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose Schedule

The immune response was measured as the hSBA geometric mean titers (GMTs) against meningococcal serogroups A, C, W and Y, before vaccination and 1 month after 2-dose schedule of MenACWY-CRM administered at 6 and 12 months of age (MenACWY-CRM\_6-12 M group) or 1-dose schedule administered at 12 months of age (MenACWY-CRM\_12 M group)

Time frame: Before and 1 month after 2-dose or 1-dose schedule

Population: Analysis was done on PP population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W-Postvaccination (N=40,41)220 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Postvaccination302 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Postvaccination (N=50,53)44 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Prevaccination (N=40,41)15 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Prevaccination (N=50,53)2.41 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Prevaccination7.91 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Postvaccination136 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Prevaccination19 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Postvaccination10 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Prevaccination2.02 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Prevaccination (N=50,53)1.99 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Postvaccination (N=50,53)11 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Prevaccination2.06 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Postvaccination40 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W-Postvaccination (N=40,41)30 Geometric mean titers
MenACWY-CRM_12 MGeometric Mean hSBA Titers Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Prevaccination (N=40,41)2.09 Geometric mean titers
Secondary

Geometric Mean hSBA Titers Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of Age

The immune response was measured as the hSBA GMT against meningococcal serogroup C, before and 1 month after one vaccination of MenC-CRM administered concomitantly with Prevnar at 12 months of age

Time frame: Before and 1 month after MenC-CRM vaccination at 12 months

Population: Analysis was done on PP population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgehSBA GMTs - Prevaccination2 Geometric mean titers
MenACWY-CRM_6-12 MGeometric Mean hSBA Titers Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgehSBA GMTs - Postvaccination39 Geometric mean titers
Secondary

hSBA GMT Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of Age

Booster response was measured as the hSBA GMT against meningococcal serogroup C, before and 1 month after MenACWY-CRM vaccination administered at 18 months of age, following one vaccination of MenC-CRM at 12 months of age

Time frame: Before and 1 month after MenACWY-CRM vaccination at 18 months

Population: Analysis was done on PP population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
MenACWY-CRM_6-12 MhSBA GMT Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgehSBA GMTs - Prevaccination29 Geometric mean titers
MenACWY-CRM_6-12 MhSBA GMT Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgehSBA GMTs - Postvaccination667 Geometric mean titers
Secondary

hSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of Age

The immune response was measured as the hSBA GMTs against meningococcal serogroups A, W and Y, before and 1 month after one vaccination of MenACWY-CRM administered concomitantly with Pentacel at 18 months of age

Time frame: Before and 1 month after MenACWY-CRM vaccination at 18 months

Population: Analysis was done on PP population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
MenACWY-CRM_6-12 MhSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup A - Prevaccination2 Geometric mean titers
MenACWY-CRM_6-12 MhSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup A - Postvaccination8.05 Geometric mean titers
MenACWY-CRM_6-12 MhSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup W - Prevaccination (N=37)2.09 Geometric mean titers
MenACWY-CRM_6-12 MhSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup W - Postvaccination (N=37)17 Geometric mean titers
MenACWY-CRM_6-12 MhSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup Y - Prevaccination2 Geometric mean titers
MenACWY-CRM_6-12 MhSBA GMTs Against Meningococcal Serogroups A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup Y - Postvaccination13 Geometric mean titers
Secondary

Number of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant Vaccination

The safety was assessed as the number of subjects who reported solicited local and systemic reactions from day 1 through day 7 following any vaccination of MenACWY-CRM, MenC-CRM and concomitant vaccination

Time frame: From day 1 through day 7 after any vaccination

Population: Analysis was done on the safety population, i.e. all subjects who had at least one vaccination and some postbaseline safety data.

ArmMeasureGroupValue (NUMBER)
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationChange in eating habits (N=62,60,50)28 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Tenderness (N=64,61,44)23 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Induration (N=64,56,50)29 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationFever (≥38 °C)6 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Erythema (N=64,61,44)33 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Induration (N=64,61,44)28 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDiarrhea12 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Tenderness (N=64,56,50)25 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPCV7 Tenderness32 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationIrritability57 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationSleepiness35 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAny local reactions53 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPC7 Erythema39 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPC7 Induration31 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAnalgesic Antipyretic Medicines Used42 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationVomiting9 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAny systemic reactions59 participants
MenACWY-CRM_6-12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Erythema (N=64,56,50)33 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAny systemic reactions55 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationChange in eating habits (N=62,60,50)21 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Erythema (N=64,56,50)25 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationSleepiness32 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationIrritability45 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationVomiting11 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDiarrhea18 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationFever (≥38 °C)12 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Induration (N=64,56,50)20 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAnalgesic Antipyretic Medicines Used35 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAny local reactions49 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Tenderness (N=64,61,44)22 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Induration (N=64,61,44)20 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPCV7 Tenderness33 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Tenderness (N=64,56,50)24 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPC7 Erythema31 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPC7 Induration32 participants
MenACWY-CRM_12 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Erythema (N=64,61,44)25 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPC7 Induration19 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Erythema (N=64,61,44)23 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationSleepiness22 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDiarrhea11 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAnalgesic Antipyretic Medicines Used29 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAny local reactions47 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Tenderness (N=64,56,50)30 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Erythema (N=64,56,50)28 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationMenACWY MenC Induration (N=64,56,50)23 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Tenderness (N=64,61,44)27 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationDTaP-Hib-IPV Induration (N=64,61,44)17 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPCV7 Tenderness16 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationPC7 Erythema28 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationAny systemic reactions43 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationChange in eating habits (N=62,60,50)21 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationIrritability38 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationVomiting6 participants
MenC-CRM_12 M_MenACWY-CRM_18 MNumber of Subjects Who Reported Solicited Local and Systemic Reactions After Any MenACWY-CRM, MenC-CRM and Concomitant VaccinationFever (≥38 °C)12 participants
Secondary

Percentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of Age

Immunogenicity was measured as the percentage of subjects who achieved hSBA titers ≥1:4 or ≥1:8 against meningococcal serogroups A, W and Y, before and 1 month after one vaccination of MenACWY-CRM administered concomitantly with Pentacel at 18 months of age

Time frame: Before and 1 month after MenACWY-CRM vaccination at 18 months

Population: Analysis was done on PP population.

ArmMeasureGroupValue (NUMBER)
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup A - hSBA ≥1:4 - Prevaccination0 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup A - hSBA ≥1:4 - Postvaccination63 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup W - hSBA ≥1:4 - Prevaccination (N=37)3 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup W - hSBA ≥1:4 - Postvaccination (N=37)81 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup Y - hSBA ≥1:4 - Prevaccination0 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup Y - hSBA ≥1:4 - Postvaccination79 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup A - hSBA ≥1:8 - Prevaccination0 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup A - hSBA ≥1:8 - Postvaccination50 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup W - hSBA ≥1:8 - Prevaccination (N=37)3 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup W - hSBA ≥1:8 - Postvaccination (N=37)76 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup Y - hSBA ≥1:8 - Prevaccination0 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup A, W and Y After One Vaccination of MenACWY-CRM Administered at 18 Months of AgeSerogroup Y - hSBA ≥1:8 - Postvaccination63 Percentage of subjects
Secondary

Percentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of Age

Booster response was measured as the percentage of subjects who achieved hSBA titers ≥1:4 or ≥1:8 against meningococcal serogroup C, before and 1 month after MenACWY-CRM vaccination administered at 18 months of age, following one vaccination of MenC-CRM at 12 months of age

Time frame: Before and 1 month after MenACWY-CRM vaccination at 18 months

Population: Analysis was done on PP population.

ArmMeasureGroupValue (NUMBER)
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgehSBA ≥1:4 - Prevaccination89 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgehSBA ≥1:4 - Postvaccination100 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgehSBA ≥1:8 - Prevaccination82 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After MenACWY-CRM Vaccination Administered at 18 Months of Age, Following One Vaccination of MenC-CRM at 12 Months of AgehSBA ≥1:8 - Postvaccination100 Percentage of subjects
Secondary

Percentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of Age

Immunogenicity was measured as the percentage of subjects who achieved hSBA titers ≥1:4 or ≥1:8 against meningococcal serogroup C, before and 1 month after one vaccination of MenC-CRM administered concomitantly with Prevnar at 12 months of age

Time frame: Before and 1 month after MenC-CRM vaccination at 12 months

Population: Analysis was done on PP population.

ArmMeasureGroupValue (NUMBER)
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgehSBA titers ≥1:4 - Prevaccination0 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgehSBA titers ≥1:4 - Postvaccination93 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgehSBA titers ≥1:8 - Prevaccination0 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:4 or ≥1:8 Against Meningococcal Serogroup C After One Vaccination of MenC-CRM Administered at 12 Months of AgehSBA titers ≥1:8 - Postvaccination88 Percentage of subjects
Secondary

Percentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose Schedule

Immunogenicity was measured as the percentage of subjects with hSBA titers ≥1:8 against meningococcal serogroups A, C, W and Y, before vaccination and 1 month after 2-dose schedule of MenACWY-CRM administered at 6 and 12 months of age (MenACWY-CRM\_6-12 M group) or 1-dose schedule administered at 12 months of age (MenACWY-CRM\_12 M)

Time frame: Before and 1 month after 2-dose or 1-dose schedule

Population: Analysis was done on PP population.

ArmMeasureGroupValue (NUMBER)
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Prevaccination (N=50,53)8 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Postvaccination (N=50,53)84 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Prevaccination75 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Postvaccination100 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Prevaccination (N=40,41)73 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Postvaccination (N=40,41)100 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Prevaccination (N=53,54)55 Percentage of subjects
MenACWY-CRM_6-12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Postvaccination (N=53,54)100 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Postvaccination (N=53,54)67 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Prevaccination (N=50,53)0 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Prevaccination (N=40,41)2 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup A - Postvaccination (N=50,53)60 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup Y - Prevaccination (N=53,54)0 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Prevaccination2 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup W - Postvaccination (N=40,41)93 Percentage of subjects
MenACWY-CRM_12 MPercentage of Subjects With hSBA Titers ≥1:8 Against Each of 4 Meningococcal Serogroups After MenACWY-CRM Vaccination Administered as 2-Dose or 1-Dose ScheduleSerogroup C - Postvaccination93 Percentage of subjects

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026