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Trial · NCT00329849

Safety and Immunogenicity of Meningococcal ACWY Conjugate Versus Polysaccharide Vaccine in Children 2 to 10 Years of Age

NCT00329849, Phase 3, Completed, Novartis Vaccines; results first posted 2013-11-05

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Safety and Immunogenicity of Meningococcal ACWY Conjugate Versus Polysaccharide Vaccine in Children 2 to 10 Years of Age. Trials, record NCT00329849. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00329849

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Safety and Immunogenicity of Meningococcal ACWY Conjugate Versus Polysaccharide Vaccine in Children 2 to 10 Years of Age
NCT number
NCT00329849
Status
Completed
Phases
Phase 3
Enrollment
1,500 participants, actual
Lead sponsor
Novartis Vaccines
Conditions
Meningococcal Disease
Interventions
Meningococcal ACWY-CRM conjugate vaccine, Meningococcal ACWY-PS polysaccharide vaccine
First posted
2006-05-25
Last updated
2018-10-09
Results first posted
2013-11-05

Source ClinicalTrials.gov

Registered outcomes7

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PS1 month after vaccination (day 29)
Immunogenicity was measured as the percentage of subjects with hSBA seroresponse, directed against each of meningococcal serogroups A, C, W and Y, evaluated by serum bactericidal assay using human complement (hSBA), one month after vaccination (day 29)with MenACWY-CRM or MenACWY-PS vaccine. Seroresponse was defined as: 1. for subjects with a prevaccination hSBA titer \<1:4, a postvaccination hSBA titer ≥1:8; 2. for subjects with a prevaccination hSBA titer ≥1:4, an increase in hSBA titer of at least four times the prevaccination titer.
PrimaryNumber of Subjects With At Least One Severe Systemic Reaction to MenACWY-CRM or MenACWY-PS Within 7 Days PostvaccinationDay 1 to 7 postvaccinationSafety was assessed in terms of the number of subjects who reported at least one severe systemic reaction after vaccination with MenACWY-CRM or MenACWY-PS from day 1 to day 7 after vaccination.
SecondaryPercentage of Subjects With hSBA Titers ≥1:4 and ≥1:8 Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSDay 1 and 29
Immunogenicity was measured as the percentage of subjects who achieved hSBA titers ≥1:4 and ≥1:8 against each of four meningococcal serogroups A, C, W and Y at baseline (day 1) and one month (day 29)after one vaccination with MenACWY-CRM or MenACWY-PS.
SecondaryThe hSBA Geometric Mean Titers Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSDay 1 and 29
The immune response was measured as the hSBA geometric mean titers (GMTs) directed against each of four meningococcal serogroups A, C, W and Y at baseline (day 1) and one month(day 29) after one vaccination with MenACWY-CRM or MenACWY-PS.
SecondaryPercentage of Subjects With Persisting hSBA Titers ≥1:4 and ≥1:8 Against Serogroups A, C, W and Y at Day 181 After Vaccination With MenACWY-CRM or MenACWY-PSDay 181
The persistence of immune response was measured as the percentage of subjects with hSBA titers ≥1:4 and ≥1:8 against each of four meningococcal serogroups A, C, W and Y at day 181 after vaccination with MenACWY-CRM or MenACWY-PS.
SecondaryThe hSBA Geometric Mean Titers Persisting Against Meningococcal Serogroups A, C, W and Y at Day 181 After Vaccination With MenACWY-CRM or MenACWY-PSDay 181
The persistence of immune response was measured in terms of the hSBA GMTs persisting at day 181 against each of four meningococcal serogroups A, C, W and Y after vaccination with MenACWY-CRM or MenACWY-PS
SecondaryNumber of Subjects Reporting Local and Systemic Reactions and Axillary Temperature During 7-Day Period After Vaccination With MenACWY-CRM or MenACWY-PSDay 1 to 7 postvaccinationSafety was assessed as the number of subjects who reported local and systemic reactions and axillary temperature during day 1 to day 7 after vaccination with MenACWY-CRM or MenACWY-PS.

Outcomes7

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PS1 month after vaccination (day 29)
Analysis was done on the per-protocol (PP) dataset of primary vaccination, i.e. the subjects who received the vaccine correctly; provided evaluable serum samples at one month after vaccination; and had no major protocol violations as defined in the analysis plan.
Percentage of subjectsNUMBER
PRIMARYNumber of Subjects With At Least One Severe Systemic Reaction to MenACWY-CRM or MenACWY-PS Within 7 Days PostvaccinationDay 1 to 7 postvaccinationAnalysis was done on the safety set, i.e. the subjects in the exposed population who provided postvaccination safety data.Number of subjectsNUMBER
SECONDARYPercentage of Subjects With hSBA Titers ≥1:4 and ≥1:8 Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSDay 1 and 29Analysis was performed on the PP dataset of primary vaccination.Percentage of subjectsNUMBER
SECONDARYThe hSBA Geometric Mean Titers Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSDay 1 and 29Analysis was performed on the PP dataset of primary vaccination.Geometric Mean TitersGEOMETRIC_MEAN
SECONDARYPercentage of Subjects With Persisting hSBA Titers ≥1:4 and ≥1:8 Against Serogroups A, C, W and Y at Day 181 After Vaccination With MenACWY-CRM or MenACWY-PSDay 181Analysis was performed on PP dataset for persistence analysis at day 181.Percentage of subjectsNUMBER
SECONDARYThe hSBA Geometric Mean Titers Persisting Against Meningococcal Serogroups A, C, W and Y at Day 181 After Vaccination With MenACWY-CRM or MenACWY-PSDay 181Analysis was performed on the PP dataset for persistence analysis at day 181.Geometric Mean TitersGEOMETRIC_MEAN
SECONDARYNumber of Subjects Reporting Local and Systemic Reactions and Axillary Temperature During 7-Day Period After Vaccination With MenACWY-CRM or MenACWY-PSDay 1 to 7 postvaccinationAnalysis was performed on safety dataset. Groups were sub-divided into 2 to 5 years of age and 6 to 10 years of age.participantsNUMBER

Results by group182

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-CRMSerogroup A9395% Confidence Interval 87 to 96Percentage of subjects
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-PSSerogroup A5595% Confidence Interval 46 to 63Percentage of subjects
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-CRMSerogroup C (N=147,144)8295% Confidence Interval 74 to 88Percentage of subjects
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-PSSerogroup C (N=147,144)5295% Confidence Interval 44 to 60Percentage of subjects
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-CRMSerogroup W (N=143,142)7495% Confidence Interval 66 to 81Percentage of subjects
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-PSSerogroup W (N=143,142)4695% Confidence Interval 37 to 54Percentage of subjects
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-CRMSerogroup Y (N=146,146)8295% Confidence Interval 74 to 87Percentage of subjects
Percentage of Subjects With hSBA Seroresponse Against Serogroups A, C, W and Y One Month After Vaccination With MenACWY-CRM or MenACWY-PSMenACWY-PSSerogroup Y (N=146,146)6395% Confidence Interval 55 to 71Percentage of subjects
Number of Subjects With At Least One Severe Systemic Reaction to MenACWY-CRM or MenACWY-PS Within 7 Days PostvaccinationMenACWY-CRM11Number of subjects
Number of Subjects With At Least One Severe Systemic Reaction to MenACWY-CRM or MenACWY-PS Within 7 Days PostvaccinationMenACWY-PS1Number of subjects

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDMenACWY-CRM950
Overall StudySTARTEDMenACWY-PS550
Overall StudyCOMPLETEDMenACWY-CRM944
Overall StudyCOMPLETEDMenACWY-PS546
Overall StudyNOT COMPLETEDMenACWY-CRM6
Overall StudyNOT COMPLETEDMenACWY-PS4

Adverse events26

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherInjection site painGeneral disordersMenACWY-CRM221950221
otherInjection site painGeneral disordersMenACWY-PS168550168
otherInjection site erythemaGeneral disordersMenACWY-CRM166950166
otherInjection site erythemaGeneral disordersMenACWY-PS7155071
otherHeadacheNervous system disordersMenACWY-CRM125950125
otherHeadacheNervous system disordersMenACWY-PS7255072
otherInjection site indurationGeneral disordersMenACWY-CRM143950143
otherInjection site indurationGeneral disordersMenACWY-PS6155061
otherPyrexiaGeneral disordersMenACWY-CRM7595075
otherPyrexiaGeneral disordersMenACWY-PS4955049

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityMenACWY-CRM
Total, all-cause mortalityMenACWY-PS
Total, other adverse eventsMenACWY-CRM409950
Total, other adverse eventsMenACWY-PS271550
Total, serious adverse eventsMenACWY-CRM9950
Total, serious adverse eventsMenACWY-PS1550

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
19895922RESULT

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons1

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

Comparison
MenACWY-CRM vs MenACWY-PS: serious adverse events

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

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