Immune response of one dose of MenACWY-CRM(Ad-) compared to that of one dose of MenACWY polysaccharide(MenACWY-PS) vaccine, 28 days after administration to subjects aged 36 to 59 months, as measured by the percentage of subjects with human complement serum bactericidal activity (hSBA) titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset -subjects in the modified intention to treat population who received one dose of the study vaccine, and provided an evaluable serum sample at baseline and 28 days after the vaccine dose and had no major protocol deviation.

Immune response of one dose of MenACWY-CRM(Ad-) compared to that of a MenACWY-PS vaccine, 28 days after administration to subjects aged 36 to 59 months, as measured by the percentages of subjects with hSBA titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset, Immunogenicity after one dose of vaccine -subjects in the modified intention to treat population who received one dose of the study vaccine, and provided an evaluable serum sample at baseline and 28 days after the vaccine dose and had no major protocol deviation.

Immune response of one dose of MenACWY-CRM(Ad-) vaccine compared with that of one dose of MenACWY-PS vaccine, 28 days after administration in subjects 36-59 months of age, as measured by hSBA geometric mean titers (GMTs) against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset -subjects in the modified intention to treat population who received one dose of the study vaccine, and provided an evaluable serum sample at baseline and 28 days after the vaccine dose and had no major protocol deviation.

Persistence of functional immune response at 6 or 12 months following administration of one dose of either MenACWY-CRM(Ad-) or MenACWY-PS vaccine in children aged 36 to 59 months, as measured by hSBA GMTs against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on PP dataset -subset of subjects in the MITT population for the evaluation of immunogenicity after the 1st dose of either MenACWY Ad+/PS vaccine, provided evaluable serum samples at day 169 day 358 and had no major protocol deviation.

Persistence of functional immune response at 6 or 12 months following administration of one dose of either MenACWY-CRM(Ad-) or MenACWY-PS vaccine in children aged 36 to 59 months, as measured by the percentage of hSBA titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on PP dataset- subjects who received a dose of either MenACWY-CRM(Ad+) or MenACWY(Ad-) vaccine or MenACWY-PS vaccine at either 6 or 12 months from the first vaccination, and provided evaluable serum samples at baseline, at 28 days and 50 days after the first vaccine dose and had no major protocol deviation.

Persistence of functional immune response at 6 or 12 months following administration of one dose of either MenACWY-CRM(Ad-) or MenACWY-PS vaccine in children aged 36 to 59 months, as measured by the percentage of subjects with hSBA titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on PP dataset -subjects in the MITT who received a dose of either MenACWY-CRM(Ad+) or MenACWY-CRM(Ad-) or MenACWY-PS vaccine at either 6 or 12 months from the 1st vaccination, and provided evaluable serum samples at baseline, at 28 days and 50 days after the 1st vaccine dose and had no major protocol deviation.

Booster effect of a second dose of MenACWY-CRM(Ad-) vaccine administered either 6 or 12 months after an initial dose of MenACWY-CRM(Ad-) or MenACWY-PS vaccine in children aged 36 to 59 months, as measured 21 days after the booster dose by hSBA GMT against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset, Immunogenicity after one dose of vaccine -subjects in the modified intention to treat population who received two doses of the study vaccine, provided an evaluable serum sample at baseline and 28 days after the second dose and had no major protocol deviation.

Booster effect of a second dose of MenACWY-CRM(-Ad) vaccine administered either 6 or 12 months after an initial dose of MenACWY-CRM(Ad-) or MenACWY-PS in children aged 36 to 59 months, as measured 21 days after the booster dose by the percentage of subjects with hSBA titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on PP dataset- subjects who received a dose of either MenACWY-CRM(Ad+) or MenACWY-CRM(Ad-)vaccine or MenACWY-PS vaccine at either 6 or 12 months from the first vaccination, and provided evaluable serum samples at baseline, at 28 days and 50 days after the first vaccine dose and had no major protocol deviation.

Booster effect of a second dose of MenACWY-CRM(Ad-) vaccine administered either 6 or 12 months after an initial dose of MenACWY-CRM(Ad-) or MenACWY-PS in children aged 36 to 59 months, as measured 21 days after the booster dose by the percentage of subjects with hSBA titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset - subjects in the modified intention to treat population who received two doses of the study vaccine, provided an evaluable serum sample at baseline and 28 days after the second dose and had no major protocol deviation.

Immune response of one dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, 28 days after administration to subjects aged 12 to 35 months, as measured by the percentage of subjects with hSBA titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset - subjects in the modified intention to treat population who received one dose of the study vaccine, and provided an evaluable serum sample at baseline and 28 days after the vaccine dose and had no major protocol deviation.

Immune response of one dose of MenACWY-CRM vaccine with adjuvant or without adjuvant, 28 days after administration to subjects aged 12 to 35 months, as measured by hSBA GMTs against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset -subjects in the modified intention to treat population who received one dose of the study vaccine, and provided an evaluable serum sample at baseline and 28 days after the vaccine dose and had no major protocol deviation.

Immune response of one dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, 28 days after administration to subjects aged 12 to 35 months, as measured by the percentage of subjects with human complement serum bactericidal antibody (hSBA) titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset -subjects in the modified intention to treat population who received one dose of the study vaccine, and provided an evaluable serum sample at baseline and 28 days after the vaccine dose and had no major protocol deviation.

Immune response to a second dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, administered 28 days after initial dose to subjects aged 12 to 35 months, as measured 21 days after the second dose by the percentage of subjects with hSBA titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol (PP) dataset, Immunogenicity after one dose of vaccine -subjects in the modified intention to treat population who received two doses of the study vaccine, provided an evaluable serum sample at baseline and 28 days after the second dose and had no major protocol deviation.

Immune response to a second dose of either MenACWY-CRM vaccine, with adjuvant or without adjuvant, administered 28 days after the initial dose to subjects aged 12 to 35 months, as measured 21 days after the second dose by the percentage of subjects with hSBA titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Immune response to a second dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, administered 28 days after the initial dose to subjects aged 12 to 35 months, as measured 21 days after the second dose by hSBA GMTs against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Persistence of immune response at 6 or 12 months following administration of one dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, in subjects aged 12 to 35 months, as measured by hSBA GMTs against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Persistence of immune response at 6 or 12 months following administration of one dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, in subjects aged 12 to 35 months, as measured by the percentage of subjects with hSBA titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on PP dataset -subset of subjects in the MITT population for the evaluation of immunogenicity after the 1st dose of either MenACWY Ad+ / Ad- conjugate vaccine who received a booster dose of either Novartis MenACWY Ad+/ Ad- conjugate vaccine, provided evaluable serum samples at day 169 and 358, had no major protocol deviation.

Persistence of immune response at 6 or 12 months after one dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, in subjects aged 12 to 35 months of age, as measured by the percentage of subjects with hSBA titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Booster effect of a second dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, administered at 6 or 12 months after an initial dose in children aged 12 to 35 months, as measured 21 days after the booster dose by hSBA GMTs against N. meningitidis serogroups A, C, W, and Y.

Booster effect of a second dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, administered at 6 or 12 months after an initial dose in children aged 12 to 35 months, as measured 21 days after the booster dose by the percentage of subjects with hSBA titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Booster effect of a second dose of MenACWY-CRM vaccine, with adjuvant or without adjuvant, administered either at 6 or 12 months after an initial dose in children aged 12 to 35 months, as measured 21 days after the booster dose by the percentage of subjects with hSBA titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Persistence of immune response at 12 months following administration of two doses of MenACWY-CRM vaccine, with adjuvant or without adjuvant, in subjects aged 12 to 35 months, as measured by hSBA GMTs against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on PP dataset Immunogenicity of a booster dose - subset of subjects in the MITT population who received a booster dose of either MenACWY Ad+/Ad- conjugate vaccine, and provided evaluable serum samples at day 169, 358 & had no major protocol deviation.

Persistence of immune response, at 12 months following administration of two doses of MenACWY-CRM vaccine, with adjuvant or without adjuvant, in subjects aged 12 to 35 months of age, as measured by the percentage of subjects with hSBA titers ≥ 1:4 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Persistence of immune response, at 12 months following administration of two doses of MenACWY-CRM vaccine, with adjuvant or without adjuvant, in subjects aged 12 to 35 months of age, as measured by the percentage of subjects with hSBA titers ≥ 1:8 against N. meningitidis serogroups A, C, W, and Y.

Analysis was done on per protocol dataset - subjects in the Modified Intention to treat population who received the two doses of vaccine correctly, and provided evaluable serum samples at the relevant time points, and had no major protocol deviation.

Safety was assessed as the number of subjects 12 to 59 months of age who reported solicited local and systemic adverse events from day 1 up to and including day 7 after the first or second vaccination(s) with MenACWY-CRM vaccine, with adjuvant or without adjuvant or MenACWY-PS vaccine.

Analysis was done on Safety dataset - all subjects who received at least one dose of vaccine and with some post-baseline safety data.

Safety was assessed as the number of subjects 12 to 59 months of age who reported serious adverse events (SAE), AEs necessitating a physician's visit and/or resulting in premature withdrawal from the study, AEs were to be collected between day 7 and the subsequent visit (approximately 1 month later) after the first or second vaccination(s) of MenACWY-CRM vaccine, with or without adjuvant, or MenACWY-PS vaccine. Any SAE were to be collected throughout the study.

Analysis was done on Safety dataset - all subjects who received at least one dose of vaccine and with some post-baseline safety data.