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Study to Evaluate the Safety and Immunogenicity of Nimenrix (Registered) in Healthy Infants, Given at 3 and 12 Months of Age

A PHASE 3B, OPEN-LABEL, STUDY TO EVALUATE THE SAFETY AND IMMUNOGENICITY OF NIMENRIX(Registered) IN HEALTHY INFANTS, GIVEN AT 3 AND 12 MONTHS OF AGE

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04819113
Enrollment
149
Registered
2021-03-26
Start date
2021-04-09
Completion date
2022-09-09
Last updated
2024-03-18

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

Conditions

Meningococcal Vaccine

Brief summary

This study will evaluate the safety and immunogenicity of a single dose of Nimenrix in infants at 3 months of age, followed by a second dose at 12 months of age. Current posology allows for 2 doses of Nimenrix before 6 months of age, where the first dose is administered from 6 weeks onwards with a second dose at least 2 months later, with a booster at 12 months; and in infants from 6 months of age, a single dose at 6 months, with a booster dose at 12 months. This study will provide valuable immunogenicity and safety data for a single dose in healthy infants \<6 months of age, followed by the booster at 12 months

Interventions

BIOLOGICALNimenrix

MenACWY-TT vaccine

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
76 Days to 104 Days
Healthy volunteers
Yes

Inclusion criteria

* Male or female infants born at \>36 weeks of gestation and who are 3 months of age (≥76 to ≤104 days) at the time of consent (the day of birth is considered day of life 1). * Participants whose parent(s)/legal guardian(s) is willing and able to comply with scheduled visits, treatment plan, and other study procedures. * Healthy infants determined by clinical assessment, including medical history and clinical judgment, to be eligible for the study. * Participants who are available for the duration of the study and whose parent(s)/legal guardian(s) can be contacted by telephone during study participation. * Participants whose parent(s)/legal guardian(s) is capable of giving signed informed consent.

Exclusion criteria

* Previous anaphylactic reaction to any vaccine or vaccine-related component. * Bleeding diathesis or condition associated with prolonged bleeding time that would contraindicate intramuscular injection. * History of microbiologically proven disease caused by N meningitidis or Neisseria gonorrhoeae. * Significant neurological disorder or history of seizure (including simple febrile seizure). * Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination (no laboratory testing required). * Family history of congenital or hereditary immunodeficiency. * Other medical or psychiatric condition, including recent or active suicidal ideation/behavior, or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study. * Major known congenital malformation or serious chronic disorder. * Previous vaccination with any meningococcal vaccine containing groups A, C, W, or Y.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Local Reactions Within 7 Days After Vaccination 2Within 7 days after vaccination 2Local reactions included pain at injection site, redness and swelling and were recorded by the participant's parents/legal guardians in an electronic diary (e-diary). Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 centimeter (cm) and graded as mild: greater than (\>) 0.0 to 2.0 cm; moderate: \>2.0 to 7.0 cm; and severe: \>7.0 cm. Pain at injection site was graded as mild: hurts if gently touched; moderate: hurts if gently touched with crying; severe: limited limb movement. Exact 2-sided confidence interval (CI) was based on the Clopper and Pearson method.
Percentage of Participants With Systemic Events Within 7 Days After Vaccination 2Within 7 days after vaccination 2Systemic events included fever, decreased appetite, increased sleep and irritability and were recorded by the participant's parents/legal guardians in an e-diary. Fever was defined as temperature greater than or equal to (\>=) 38.0 degrees (deg) Celsius (C), categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C,\>38.9 to 40.0 deg C and \>40.0 deg C; decreased appetite graded as mild: decreased interest in eating, moderate: decreased oral intake and severe: refusal to feed; increased sleep graded as mild: increased or prolonged sleeping bouts, moderate: slightly subdued, interfered with daily activity and severe: disabling, not interested in usual daily activity; irritability graded as mild: easily consolable, moderate: required increased attention and severe: inconsolable, crying could not be comforted. Exact 2-sided CI was based on Clopper and Pearson method.
Percentage of Participants With Use of Antipyretic Medication Within 7 Days After Vaccination 2Within 7 days after vaccination 2The use of antipyretic medication was recorded by the participant's parents/legal guardians in an e-diary for 7 days after vaccination. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants With Adverse Events (AEs) Within 30 Days After Vaccination 2Within 30 days after vaccination 2An AE was any untoward medical occurrence in a participant, temporally associated with the use of investigational product, whether or not considered related to the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method. Only AEs collected by non-systematic assessment (i.e., excluding local reactions and systemic events) were reported in this outcome measure.
Percentage of Participants With Serious Adverse Events (SAEs) Within 30 Days After Vaccination 2Within 30 days after vaccination 2An SAE was any untoward medical occurrence that, at any dose: resulted in death; required inpatient hospitalization or prolongation of existing hospitalization; was life-threatening; resulted in persistent disability/incapacity; congenital anomaly/birth defect and other important medical events. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants With Newly Diagnosed Chronic Medical Conditions (NDCMCs) Within 30 Days After Vaccination 2Within 30 days after vaccination 2An NDCMC was defined as a significant disease or medical condition, not previously identified, that was expected to be persistent or was otherwise long-lasting in its effects. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants With Immediate AE Within 30 Minutes After Vaccination 2Within 30 minutes after vaccination 2Immediate AEs were defined as AEs occurring within the first 30 minutes after administration of the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants Achieving Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers >=1:8 for Each Serogroup, Neisseria Meningitidis Group (Men) A, MenC, MenW-135 and MenY at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1)Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline in participants who received vaccinations 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented. Analysis was performed on Post Dose (PD) 2 Evaluable Immunogenicity Population (EIP) (PD2 EIP).
Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity Population1 month after vaccination 1Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at 1 month after vaccination 1 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationAt vaccination 2Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population1 month after vaccination 2Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at 1 month after vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
Geometric Mean Titers (GMTs) of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1)GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).
GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity Population1 month after vaccination 1GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).
GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationAt vaccination 2GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).
GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population1 month after vaccination 2GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).

Secondary

MeasureTime frameDescription
Percentage of Participants With Local Reactions Within 7 Days After Vaccination 1Within 7 days after vaccination 1Local reactions included pain at injection site, redness and swelling and were recorded by the participant's parents/legal guardians in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: \>0.0 to 2.0 cm; moderate: \>2.0 to 7.0 cm; and severe: \>7.0 cm. Pain at injection site was graded as mild: hurts if gently touched; moderate: hurts if gently touched with crying; severe: limited limb movement. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2Percentage of participants achieving rSBA Titers \>= 1:128 for each serogroup MenA, MenC, MenW-135 and MenY at baseline, 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2 in Participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
Percentage of Participants With Systemic Events Within 7 Days After Vaccination 1Within 7 days after vaccination 1Systemic events included fever, decreased appetite, increased sleep and irritability and were recorded in e-diary. Fever was defined as temperature \>=38.0 deg C, categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C,\>38.9 to 40.0 deg C and \>40.0 deg C; decreased appetite graded as mild: decreased interest in eating, moderate: decreased oral intake and severe: refusal to feed; increased sleep graded as mild: increased or prolonged sleeping bouts, moderate: slightly subdued, interfered with daily activity and severe: disabling, not interested in usual daily activity; irritability graded as mild: easily consolable, moderate: required increased attention and severe: inconsolable, crying could not be comforted. Exact 2-sided CI was based on Clopper and Pearson method.
Percentage of Participants With Use of Antipyretic Medication Within 7 Days After Vaccination 1Within 7 days after vaccination 1The use of antipyretic medication was recorded by the participant's parents/legal guardians in an e-diary for 7 days after vaccination. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants With AEs Within 30 Days After Vaccination 1Within 30 days after vaccination 1An AE was any untoward medical occurrence in a participant, temporally associated with the use of investigational product, whether or not considered related to the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method. Only AEs collected by non-systematic assessment (i.e. excluding local reactions and systemic events) were reported in this outcome measure.
Percentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1Within 30 days after vaccination 1, from 1 month after vaccination 1 to 9 months after vaccination 1 and from vaccination 1 to 9 months after vaccination 1An SAE was any untoward medical occurrence that, at any dose: resulted in death; required inpatient hospitalization or prolongation of existing hospitalization; was life-threatening; resulted in persistent disability/incapacity; congenital anomaly/birth defect and other important medical events. An NDCMC was defined as a significant disease or medical condition, not previously identified, that was expected to be persistent or was otherwise long-lasting in its effects. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants With Immediate AE Within 30 Minutes After Vaccination 1Within 30 minutes after vaccination 1Immediate AEs were defined as AEs occurring within the first 30 minutes after administration of the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method.
Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1) and 1 month after vaccination 1Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after Vaccination 1 in participants who received Vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented. Analysis was performed on post-dose 1 (PD1) evaluable immunogenicity population (EIP).
Percentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1) and 1 month after vaccination 1Percentage of participants achieving rSBA titer \>= 1:128 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after vaccination 1 in participants who received vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1) and 1 month after vaccination 1GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).
Percentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1) and 1 month after vaccination 1Percentage of participants achieving hSBA titers \>= 1:4 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after vaccination 1 in participants who received Vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
Percentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1) and 1 month after vaccination 1Percentage of participants achieving hSBA titers \>= 1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after vaccination 1 in participants who received Vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
GMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1) and 1 month after vaccination 1GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the hSBA titers (based on the Student t distribution).
Percentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2Percentage of participants achieving hSBA titers \>= 1:4 for each serogroup MenA, MenC, MenW-135 and MenY at baseline, 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
Percentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2Percentage of participants achieving hSBA titers \>= 1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline, 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.
GMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationAt baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the hSBA titers (based on the Student t distribution).

Countries

Finland, Poland, Spain

Participant flow

Pre-assignment details

Total of 153 participants were screened, of which 4 were screen failures.

Participants by arm

ArmCount
Nimenrix
Participants aged 3 months were administered a single dose of 0.5 milliliter (mL) Nimenrix (Vaccination 1) intramuscularly into the left thigh muscle on Day 1 (Visit 1) and a second dose of Nimenrix (Vaccination 2) at 12 months of age (Visit 3). Participants had a safety follow-up visit 1 month after each vaccination (Visit 2 and Visit 4 respectively).
145
Total145

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up1
Overall StudyWithdrawal by parent/guardian3
Overall StudyWithdrawn before vaccination2

Baseline characteristics

CharacteristicNimenrix
Age, Continuous94.4 Days
STANDARD_DEVIATION 6.09
Ethnicity (NIH/OMB)
Hispanic or Latino
26 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
119 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
141 Participants
Sex: Female, Male
Female
76 Participants
Sex: Female, Male
Male
69 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 145
other
Total, other adverse events
139 / 145
serious
Total, serious adverse events
10 / 145

Outcome results

Primary

Geometric Mean Titers (GMTs) of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline: Post Dose 2 Evaluable Immunogenicity Population

GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).

Time frame: At baseline (before vaccination 1)

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
NimenrixGeometric Mean Titers (GMTs) of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenA4.0 Titer
NimenrixGeometric Mean Titers (GMTs) of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenC4.4 Titer
NimenrixGeometric Mean Titers (GMTs) of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenW-1354.1 Titer
NimenrixGeometric Mean Titers (GMTs) of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenY5.0 Titer
Primary

GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity Population

GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).

Time frame: 1 month after vaccination 1

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenA54.7 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenC107.6 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135202.4 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenY187.2 Titer
Primary

GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).

Time frame: 1 month after vaccination 2

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA1818.0 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC1299.5 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-1352714.1 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY1667.1 Titer
Primary

GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).

Time frame: At vaccination 2

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA9.9 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC21.8 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-13521.7 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY24.5 Titer
Primary

Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity Population

Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at 1 month after vaccination 1 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: 1 month after vaccination 1

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenA82.3 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenC91.1 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenW-13589.5 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 1: Post Dose 2 Evaluable Immunogenicity PopulationMenY90.3 Percentage of participants
Primary

Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at 1 month after vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: 1 month after vaccination 2

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA100.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC100.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135100.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY100.0 Percentage of participants
Primary

Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: At vaccination 2

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA33.6 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC64.8 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-13567.2 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY66.4 Percentage of participants
Primary

Percentage of Participants Achieving Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers >=1:8 for Each Serogroup, Neisseria Meningitidis Group (Men) A, MenC, MenW-135 and MenY at Baseline: Post Dose 2 Evaluable Immunogenicity Population

Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline in participants who received vaccinations 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented. Analysis was performed on Post Dose (PD) 2 Evaluable Immunogenicity Population (EIP) (PD2 EIP).

Time frame: At baseline (before vaccination 1)

Population: PD2 EIP: participants enrolled and eligible through 1 month after vaccination 2; received vaccine at visit (V) 1 and V3; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and at 1 month after dose 2 (V4: window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, and MenY assay result at V4, received no prohibited vaccines/treatment and had no protocol deviations through V4. Here, N =participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers >=1:8 for Each Serogroup, Neisseria Meningitidis Group (Men) A, MenC, MenW-135 and MenY at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenA0.0 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers >=1:8 for Each Serogroup, Neisseria Meningitidis Group (Men) A, MenC, MenW-135 and MenY at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenC4.7 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers >=1:8 for Each Serogroup, Neisseria Meningitidis Group (Men) A, MenC, MenW-135 and MenY at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenW-1350.8 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers >=1:8 for Each Serogroup, Neisseria Meningitidis Group (Men) A, MenC, MenW-135 and MenY at Baseline: Post Dose 2 Evaluable Immunogenicity PopulationMenY7.8 Percentage of participants
Primary

Percentage of Participants With Adverse Events (AEs) Within 30 Days After Vaccination 2

An AE was any untoward medical occurrence in a participant, temporally associated with the use of investigational product, whether or not considered related to the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method. Only AEs collected by non-systematic assessment (i.e., excluding local reactions and systemic events) were reported in this outcome measure.

Time frame: Within 30 days after vaccination 2

Population: Dose 2 safety population included participants who received the first and second dose of investigational product at Visit 1 and Visit 3 and for whom safety information was available from Visit 3. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Adverse Events (AEs) Within 30 Days After Vaccination 219.6 Percentage of participants95% Confidence Interval 13.4
Primary

Percentage of Participants With Immediate AE Within 30 Minutes After Vaccination 2

Immediate AEs were defined as AEs occurring within the first 30 minutes after administration of the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 30 minutes after vaccination 2

Population: Dose 2 safety population included participants who received the first and second dose of investigational product at Visit 1 and Visit 3 and for whom safety information was available from Visit 3. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Immediate AE Within 30 Minutes After Vaccination 20.0 Percentage of participants95% Confidence Interval 0
Primary

Percentage of Participants With Local Reactions Within 7 Days After Vaccination 2

Local reactions included pain at injection site, redness and swelling and were recorded by the participant's parents/legal guardians in an electronic diary (e-diary). Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 centimeter (cm) and graded as mild: greater than (\>) 0.0 to 2.0 cm; moderate: \>2.0 to 7.0 cm; and severe: \>7.0 cm. Pain at injection site was graded as mild: hurts if gently touched; moderate: hurts if gently touched with crying; severe: limited limb movement. Exact 2-sided confidence interval (CI) was based on the Clopper and Pearson method.

Time frame: Within 7 days after vaccination 2

Population: Dose 2 safety population included participants who received the first and second dose of investigational product at Visit 1 and Visit 3 and for whom safety information was available from Visit 3. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Redness: Mild14.1 Percentage of participants95% Confidence Interval 8.8
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Swelling: Moderate1.4 Percentage of participants95% Confidence Interval 0.2
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Pain at injection site: Mild19.7 Percentage of participants95% Confidence Interval 13.5
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Pain at injection site: Moderate7.7 Percentage of participants95% Confidence Interval 3.9
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Pain at injection site: Severe0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Redness: Moderate2.8 Percentage of participants95% Confidence Interval 0.8
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Redness: Severe0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Swelling: Mild4.9 Percentage of participants95% Confidence Interval 2
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 2Swelling: Severe0 Percentage of participants95% Confidence Interval 0
Primary

Percentage of Participants With Newly Diagnosed Chronic Medical Conditions (NDCMCs) Within 30 Days After Vaccination 2

An NDCMC was defined as a significant disease or medical condition, not previously identified, that was expected to be persistent or was otherwise long-lasting in its effects. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 30 days after vaccination 2

Population: Dose 2 safety population included participants who received the first and second dose of investigational product at Visit 1 and Visit 3 and for whom safety information was available from Visit 3. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Newly Diagnosed Chronic Medical Conditions (NDCMCs) Within 30 Days After Vaccination 20.0 Percentage of participants95% Confidence Interval 0
Primary

Percentage of Participants With Serious Adverse Events (SAEs) Within 30 Days After Vaccination 2

An SAE was any untoward medical occurrence that, at any dose: resulted in death; required inpatient hospitalization or prolongation of existing hospitalization; was life-threatening; resulted in persistent disability/incapacity; congenital anomaly/birth defect and other important medical events. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 30 days after vaccination 2

Population: Dose 2 safety population included participants who received the first and second dose of investigational product at Visit 1 and Visit 3 and for whom safety information was available from Visit 3. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Serious Adverse Events (SAEs) Within 30 Days After Vaccination 21.4 Percentage of participants95% Confidence Interval 0.2
Primary

Percentage of Participants With Systemic Events Within 7 Days After Vaccination 2

Systemic events included fever, decreased appetite, increased sleep and irritability and were recorded by the participant's parents/legal guardians in an e-diary. Fever was defined as temperature greater than or equal to (\>=) 38.0 degrees (deg) Celsius (C), categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C,\>38.9 to 40.0 deg C and \>40.0 deg C; decreased appetite graded as mild: decreased interest in eating, moderate: decreased oral intake and severe: refusal to feed; increased sleep graded as mild: increased or prolonged sleeping bouts, moderate: slightly subdued, interfered with daily activity and severe: disabling, not interested in usual daily activity; irritability graded as mild: easily consolable, moderate: required increased attention and severe: inconsolable, crying could not be comforted. Exact 2-sided CI was based on Clopper and Pearson method.

Time frame: Within 7 days after vaccination 2

Population: Dose 2 safety population included participants who received the first and second dose of investigational product at Visit 1 and Visit 3 and for whom safety information was available from Visit 3. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Irritability: Moderate42.3 Percentage of participants95% Confidence Interval 34
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Fever: >=38.0 deg C to 38.4 deg C6.3 Percentage of participants95% Confidence Interval 2.9
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Fever: >38.4 deg C to 38.9 deg C4.9 Percentage of participants95% Confidence Interval 2
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Fever: >38.9 deg C to 40.0 deg C3.5 Percentage of participants95% Confidence Interval 1.2
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Fever: >40.0 deg C0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Decreased appetite: Mild19.7 Percentage of participants95% Confidence Interval 13.5
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Decreased appetite: Moderate11.3 Percentage of participants95% Confidence Interval 6.6
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Decreased appetite: Severe1.4 Percentage of participants95% Confidence Interval 0.2
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Increased sleep: Mild38.0 Percentage of participants95% Confidence Interval 30
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Increased sleep: Moderate11.3 Percentage of participants95% Confidence Interval 6.6
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Increased sleep: Severe1.4 Percentage of participants95% Confidence Interval 0.2
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Irritability: Mild18.3 Percentage of participants95% Confidence Interval 12.3
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 2Irritability: Severe2.8 Percentage of participants95% Confidence Interval 0.8
Primary

Percentage of Participants With Use of Antipyretic Medication Within 7 Days After Vaccination 2

The use of antipyretic medication was recorded by the participant's parents/legal guardians in an e-diary for 7 days after vaccination. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 7 days after vaccination 2

Population: Dose 2 safety population included participants who received the first and second dose of investigational product at Visit 1 and Visit 3 and for whom safety information was available from Visit 3. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Use of Antipyretic Medication Within 7 Days After Vaccination 255.6 Percentage of participants95% Confidence Interval 47.1
Secondary

GMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the hSBA titers (based on the Student t distribution).

Time frame: At baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2

Population: PD2 EIP:participants enrolled \& eligible through 1 month after vaccination2; received vaccine at visit (V) 1 \& V3;blood drawn for assay testing within time frames at Month0 (V1; before dose 1) \& at 1 month after dose2 (V4: window 28-42 days);at least 1 valid,determinate MenA, MenC, MenW-135, \& MenY assay result at V4,received no prohibited vaccines/treatment \& had no protocol deviation through V4.Here,N=participants evaluable for this outcome measure \& n=participant evaluable for specified row.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)2.4 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 186.9 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 2)9.5 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 21208.4 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)2.9 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 1149.8 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 2)74.8 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 27299.6 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)2.8 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 18.8 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 2)121.6 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 26955.8 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)5.7 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 119.9 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 2)45.7 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 25062.1 Titer
Secondary

GMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity Population

GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the hSBA titers (based on the Student t distribution).

Time frame: At baseline (before vaccination 1) and 1 month after vaccination 1

Population: PD1 EIP:participants enrolled \& eligible through V2;received vaccine at V1;blood drawn for assay testing within time frames at Month 0 (V1; before dose1) \& Month1 (V2;1 month after dose1:window 28-42 days); had at least 1 valid, determinate MenA, MenC, MenW-135 \& MenY assay result at V2, received no prohibited vaccines/treatment \& had no protocol deviation through V2.N=signifies participants evaluable for this outcome measure.'Number Analyzed' signifies participants evaluable for specified row.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 119.2 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)2.4 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 182.0 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)2.9 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 1128.4 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)2.9 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 16.9 Titer
NimenrixGMTs of hSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)6.6 Titer
Secondary

GMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity Population

GMT was derived by calculating the mean on the natural log scale based on the t-distribution, then exponentiating the results. CIs were obtained by exponentiating the limits of CIs for the mean logarithm of the rSBA titers (based on the Student t distribution).

Time frame: At baseline (before vaccination 1) and 1 month after vaccination 1

Population: PD1 EIP: participants enrolled and eligible through V2; received vaccine at V1; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and Month 1 (V2; 1 month after dose 1: window 28-42 days); had at least 1 valid, determinate MenA, MenC, MenW-135 and MenY assay result at V2, received no prohibited vaccines/treatment and had no protocol deviations through V2. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)4.0 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 150.1 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)4.3 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 196.7 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)4.1 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 1193.3 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)4.8 Titer
NimenrixGMTs of rSBA Titer for Each of MenA, MenC, MenW-135 and MenY Serogroups at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 1172.6 Titer
Secondary

Percentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

Percentage of participants achieving hSBA titers \>= 1:4 for each serogroup MenA, MenC, MenW-135 and MenY at baseline, 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: At baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2

Population: PD2 EIP:participant enrolled \& eligible through 1month after vaccination2;received vaccine at V1 \&V3;blood drawn for assay testing within time frame at Month0 (V1;before dose1) \& at 1 month after dose2 (V4:window 28-42 days); at least 1 valid, determinate MenA, MenC, MenW-135, \& MenY assay result at V4, received no prohibited vaccine/treatment \& had no protocol deviation through V4.Here,N=participant evaluable for outcome measure.'Number Analyzed' signify participant evaluable for specified row

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)12.3 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)11.7 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 193.1 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Before Vaccination 285.1 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 138.8 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Before Vaccination 294.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)21.9 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 150.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Before Vaccination 270.8 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)8.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 195.5 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Before Vaccination 249.1 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 2100.0 Percentage of participants
Secondary

Percentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

Percentage of participants achieving hSBA titers \>= 1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline, 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2 in participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: At baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2

Population: PD2 EIP:participant enrolled \& eligible through 1month after vaccination2;received vaccine at visit 1,3;blood drawn for assay testing within time frames at Month0 (V1;before dose1) \& at 1month after dose2(V4:window 28-42 days);at least 1 valid,determinate MenA, MenC,MenW-135, \& MenY assay result at V4,received no prohibited vaccine/treatment \& had no protocol deviation through V4.Here,N=participant evaluable for outcome measure. 'Number Analyzed' signify participant evaluable for specified row.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 193.1 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)7.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 195.5 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 2)46.3 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)11.7 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 2)85.1 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)12.3 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 138.8 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 2)94.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)21.9 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 150.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 2)70.8 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 2100.0 Percentage of participants
Secondary

Percentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity Population

Percentage of participants achieving hSBA titers \>= 1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after vaccination 1 in participants who received Vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: At baseline (before vaccination 1) and 1 month after vaccination 1

Population: PD1 EIP:participants enrolled \& eligible through V2;received vaccine at V1;blood drawn for assay testing within time frames at Month 0 (V1; before dose1) \& Month1 (V2;1 month after dose1:window 28-42 days); had at least 1 valid, determinate MenA, MenC, MenW-135 \& MenY assay result at V2, received no prohibited vaccines/treatment \& had no protocol deviation through V2.N=signifies participants evaluable for this outcome measure.'Number Analyzed' signifies participants evaluable for specified row

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)6.5 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 194.3 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)13.0 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 191.6 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)13.8 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 133.9 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)25.8 Percentage of participants
NimenrixPercentage of Participants Achieving hSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 148.5 Percentage of participants
Secondary

Percentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity Population

Percentage of participants achieving rSBA Titers \>= 1:128 for each serogroup MenA, MenC, MenW-135 and MenY at baseline, 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2 in Participants who received vaccination 1 and 2 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: At baseline (before vaccination 1), 1 month after vaccination 1, at vaccination 2 and 1 month after vaccination 2

Population: PD2 EIP:participants enrolled \& eligible through 1 month after vaccination2; received vaccine at visit (V) 1 \& V3;blood drawn for assay testing within time frames at Month0 (V1; before dose 1) \& at 1 month after dose2 (V4: window 28-42 days);at least 1 valid,determinate MenA, MenC, MenW-135, \& MenY assay result at V4,received no prohibited vaccines/treatment \& had no protocol deviation through V4.Here,N=participants evaluable for this outcome measure \& n=participant evaluable for specified row

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 140.3 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, Before Vaccination 215.2 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)0.8 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 167.7 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, Before Vaccination 220.8 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 298.4 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)0.8 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 179.8 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, Before Vaccination 223.2 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 2100.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)3.9 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 183.1 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, Before Vaccination 227.2 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline, 1 Month After Vaccination 1, at Vaccination 2 and 1 Month After Vaccination 2: Post Dose 2 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 299.2 Percentage of participants
Secondary

Percentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity Population

Percentage of participants achieving rSBA titer \>= 1:128 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after vaccination 1 in participants who received vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: At baseline (before vaccination 1) and 1 month after vaccination 1

Population: PD1 EIP: participants enrolled and eligible through V2; received vaccine at V1; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and Month 1 (V2; 1 month after dose 1: window 28-42 days); had at least 1 valid, determinate MenA, MenC, MenW-135 and MenY assay result at V2, received no prohibited vaccines/treatment and had no protocol deviations through V2. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)0.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 135.3 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)0.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 165.5 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)0.9 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 179.3 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)2.6 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:128 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 181.0 Percentage of participants
Secondary

Percentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity Population

Percentage of participants achieving rSBA titer \>=1:8 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after Vaccination 1 in participants who received Vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented. Analysis was performed on post-dose 1 (PD1) evaluable immunogenicity population (EIP).

Time frame: At baseline (before vaccination 1) and 1 month after vaccination 1

Population: PD1 EIP: participants enrolled and eligible through V2; received vaccine at V1; blood drawn for assay testing within time frames at Month 0 (V1; before dose 1) and Month 1 (V2; 1 month after dose 1: window 28-42 days); had at least 1 valid, determinate MenA, MenC, MenW-135 and MenY assay result at V2, received no prohibited vaccines/treatment and had no protocol deviations through V2. Here, Overall Number of Participants Analyzed signifies participants evaluable for this outcome measure.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)0.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 181.0 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)5.2 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 189.7 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)0.9 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 188.8 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)7.8 Percentage of participants
NimenrixPercentage of Participants Achieving rSBA Titers >= 1:8 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 187.9 Percentage of participants
Secondary

Percentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity Population

Percentage of participants achieving hSBA titers \>= 1:4 for each serogroup MenA, MenC, MenW-135 and MenY at baseline and 1 month after vaccination 1 in participants who received Vaccination 1 were reported in this outcome measure. Exact 2-sided CI using the Clopper and Pearson method was presented.

Time frame: At baseline (before vaccination 1) and 1 month after vaccination 1

Population: PD1 EIP:participants enrolled \& eligible through V2;received vaccine at V1;blood drawn for assay testing within time frames at Month 0 (V1; before dose1) \& Month1 (V2;1 month after dose1:window 28-42 days); had at least 1 valid, determinate MenA, MenC, MenW-135 \& MenY assay result at V2, received no prohibited vaccines/treatment \& had no protocol deviation through V2.N=signifies participants evaluable for this outcome measure.'Number Analyzed' signifies participants evaluable for specified row

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, Baseline (Before Vaccination 1)7.6 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenA, 1 Month after Vaccination 194.3 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, Baseline (Before Vaccination 1)13.0 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenC, 1 Month after Vaccination 191.6 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, Baseline (Before Vaccination 1)13.8 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenW-135, 1 Month after Vaccination 133.9 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, Baseline (Before Vaccination 1)25.8 Percentage of participants
NimenrixPercentage of Participants Achieving Serum Bactericidal Assay Using Human Complement (hSBA) Titers >= 1:4 for Each Serogroup MenA, MenC, MenW-135 and MenY at Baseline and 1 Month After Vaccination 1: Post Dose 1 Evaluable Immunogenicity PopulationMenY, 1 Month after Vaccination 148.5 Percentage of participants
Secondary

Percentage of Participants With AEs Within 30 Days After Vaccination 1

An AE was any untoward medical occurrence in a participant, temporally associated with the use of investigational product, whether or not considered related to the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method. Only AEs collected by non-systematic assessment (i.e. excluding local reactions and systemic events) were reported in this outcome measure.

Time frame: Within 30 days after vaccination 1

Population: Dose 1 safety population included participants who received the first dose of investigational product at Visit 1 and for whom safety information was available from Visit 1 to prior to Visit 3.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With AEs Within 30 Days After Vaccination 16.9 Percentage of participants95% Confidence Interval 3.4
Secondary

Percentage of Participants With Immediate AE Within 30 Minutes After Vaccination 1

Immediate AEs were defined as AEs occurring within the first 30 minutes after administration of the investigational product. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 30 minutes after vaccination 1

Population: Dose 1 safety population included participants who received the first dose of investigational product at Visit 1 and for whom safety information was available from Visit 1 to prior to Visit 3.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Immediate AE Within 30 Minutes After Vaccination 10.0 Percentage of participants95% Confidence Interval 0
Secondary

Percentage of Participants With Local Reactions Within 7 Days After Vaccination 1

Local reactions included pain at injection site, redness and swelling and were recorded by the participant's parents/legal guardians in an e-diary. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 cm and graded as mild: \>0.0 to 2.0 cm; moderate: \>2.0 to 7.0 cm; and severe: \>7.0 cm. Pain at injection site was graded as mild: hurts if gently touched; moderate: hurts if gently touched with crying; severe: limited limb movement. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 7 days after vaccination 1

Population: Dose 1 safety population included participants who received the first dose of investigational product at Visit 1 and for whom safety information was available from Visit 1 to prior to Visit 3.

ArmMeasureGroupValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Swelling: Moderate1.4 Percentage of participants95% Confidence Interval 0.2
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Pain at injection site: Mild13.8 Percentage of participants95% Confidence Interval 8.6
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Pain at injection site: Moderate2.8 Percentage of participants95% Confidence Interval 0.8
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Pain at injection site: Severe0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Redness: Mild6.2 Percentage of participants95% Confidence Interval 2.9
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Redness: Moderate1.4 Percentage of participants95% Confidence Interval 0.2
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Redness: Severe0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Swelling: Mild1.4 Percentage of participants95% Confidence Interval 0.2
NimenrixPercentage of Participants With Local Reactions Within 7 Days After Vaccination 1Swelling: Severe0 Percentage of participants95% Confidence Interval 0
Secondary

Percentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1

An SAE was any untoward medical occurrence that, at any dose: resulted in death; required inpatient hospitalization or prolongation of existing hospitalization; was life-threatening; resulted in persistent disability/incapacity; congenital anomaly/birth defect and other important medical events. An NDCMC was defined as a significant disease or medical condition, not previously identified, that was expected to be persistent or was otherwise long-lasting in its effects. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 30 days after vaccination 1, from 1 month after vaccination 1 to 9 months after vaccination 1 and from vaccination 1 to 9 months after vaccination 1

Population: Dose 1 safety population included participants who received the first dose of investigational product at Visit 1 and for whom safety information was available from Visit 1 to prior to Visit 3.

ArmMeasureGroupValue (NUMBER)
NimenrixPercentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1NDCMC:From 1 Month after Vaccination 1 to 9 Month after Vaccination 10.0 Percentage of participants
NimenrixPercentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1SAE: Within 30 days after Vaccination 11.4 Percentage of participants
NimenrixPercentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1SAE: From 1 Month after Vaccination 1 to 9 Month after Vaccination 14.1 Percentage of participants
NimenrixPercentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1SAE: From Vaccination 1 to 9 Month after Vaccination 15.5 Percentage of participants
NimenrixPercentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1NDCMC: Within 30 days after Vaccination 10.0 Percentage of participants
NimenrixPercentage of Participants With SAEs and NDCMCs: Within 30 Days After Vaccination 1, From 1 Month After Vaccination 1 to 9 Months After Vaccination 1, From Vaccination 1 to 9 Months After Vaccination 1NDCMC: From Vaccination 1 to 9 Month after Vaccination 10.0 Percentage of participants
Secondary

Percentage of Participants With Systemic Events Within 7 Days After Vaccination 1

Systemic events included fever, decreased appetite, increased sleep and irritability and were recorded in e-diary. Fever was defined as temperature \>=38.0 deg C, categorized as \>=38.0 to 38.4 deg C, \>38.4 to 38.9 deg C,\>38.9 to 40.0 deg C and \>40.0 deg C; decreased appetite graded as mild: decreased interest in eating, moderate: decreased oral intake and severe: refusal to feed; increased sleep graded as mild: increased or prolonged sleeping bouts, moderate: slightly subdued, interfered with daily activity and severe: disabling, not interested in usual daily activity; irritability graded as mild: easily consolable, moderate: required increased attention and severe: inconsolable, crying could not be comforted. Exact 2-sided CI was based on Clopper and Pearson method.

Time frame: Within 7 days after vaccination 1

Population: Dose 1 safety population included participants who received the first dose of investigational product at Visit 1 and for whom safety information was available from Visit 1 to prior to Visit 3.

ArmMeasureGroupValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Fever: >=38.0 deg C to 38.4 deg C7.6 Percentage of participants95% Confidence Interval 3.8
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Fever: >38.4 deg C to 38.9 deg C2.1 Percentage of participants95% Confidence Interval 0.4
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Fever: >38.9 deg C to 40.0 deg C0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Fever: >40.0 deg C0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Decreased appetite: Mild15.2 Percentage of participants95% Confidence Interval 9.8
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Decreased appetite: Moderate8.3 Percentage of participants95% Confidence Interval 4.3
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Decreased appetite: Severe0 Percentage of participants95% Confidence Interval 0
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Increased sleep: Mild57.2 Percentage of participants95% Confidence Interval 48.8
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Increased sleep: Moderate7.6 Percentage of participants95% Confidence Interval 3.8
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Increased sleep: Severe1.4 Percentage of participants95% Confidence Interval 0.2
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Irritability: Mild27.6 Percentage of participants95% Confidence Interval 20.5
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Irritability: Moderate40.0 Percentage of participants95% Confidence Interval 32
NimenrixPercentage of Participants With Systemic Events Within 7 Days After Vaccination 1Irritability: Severe4.8 Percentage of participants95% Confidence Interval 2
Secondary

Percentage of Participants With Use of Antipyretic Medication Within 7 Days After Vaccination 1

The use of antipyretic medication was recorded by the participant's parents/legal guardians in an e-diary for 7 days after vaccination. Exact 2-sided CI was based on the Clopper and Pearson method.

Time frame: Within 7 days after vaccination 1

Population: Dose 1 safety population included participants who received the first dose of investigational product at Visit 1 and for whom safety information was available from Visit 1 to prior to Visit 3.

ArmMeasureValue (NUMBER)Dispersion
NimenrixPercentage of Participants With Use of Antipyretic Medication Within 7 Days After Vaccination 139.3 Percentage of participants95% Confidence Interval 31.3

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026