Clinical Trial: Safety and Immunogenicity of One Dose of Novartis' Meningococcal ACWY-CRM Vaccine and GlaxoSmithKline Biologicals' Meningococcal ACWY-TT Vaccine in Healthy Toddlers

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Phase 2, Randomized, Controlled, Observer-Blind, Multi-Center Study Assessing the Safety and Immunogenicity of One Dose of Novartis' Meningococcal ACWY-CRM Vaccine and GlaxoSmithKline Biologicals' M

Brief Summary: Evaluate the immune response and reactogenicity of one dose of Meningococcal ACWY-cross reactive material (CRM) and Meningococcal ACWY-tetanus toxoid (TT) in 12-15 months old healthy toddlers.

Detailed Summary:
Sponsor: Novartis Vaccines

Current Primary Outcome: Number of Subjects With at Least One Severe Solicited Adverse Event (AE) After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT. [ Time Frame: Day 1 to Day 7 post-vaccination ]

Reactogenicity of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by number of subjects with at least one severe solicited AE within 7 days after vaccination. Solicited AEs included tenderness, erythema, induration, irritability, sleepiness, change in eating habits, vomiting, diarrhea and fever.


Original Primary Outcome: Percentage of subjects with at least one severe solicited Adverse Event reported [ Time Frame: between 6 hours and day 7 post vaccination ]

To assess the reactogenicity of MenACWY-CRM and MenACWY-TT vaccines, given to healthy toddlers at 12-15 months of age, as measured by the percentage of subjects with at least one severe solicited AE reported between 6 hours and Day 7 post vaccination.


Current Secondary Outcome:

  • Percentages of Subjects With Human Serum Bactericidal Assay (hSBA) Titer ≥ 8 Against (N. Meningitidis) Serogroups A, C, W, and Y After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 1, Day 29 and Day 180 post-vaccination ]
    Immunogenicity of one dose of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by the percentages of subjects with hSBA titer ≥ 8 directed against Neisseria meningitidis (N. meningitidis) serogroups A, C, W, and Y on Day 29 after vaccination. Persistence of immune responses was measured by the percentages of subjects with hSBA titer ≥ 8 on Day 180 post-vaccination.
  • Percentages of Subjects With Seroresponse Against N. Meningitidis Serogroups A, C, W, and Y After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 29 and Day 180 post-vaccination ]
    Immunogenicity of one dose of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by the percentages of subjects with seroresponse defined as for subjects with pre-vaccination hSBA titer < 4, post-vaccination hSBA titer ≥ 8; for subjects with pre-vaccination hSBA titer ≥ 4, an increase of at least four times the pre-vaccination hSBA directed against N. meningitidis serogroups A, C, W, and Y on Day 29 after vaccination. Persistence immune response was measured by the percentage of subjects with seroresponse at Day 180 after vaccination.
  • hSBA Geometric Mean Titers (GMTs) Against N. Meningitidis Serogroups A, C, W, and Y After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 1, Day 29 and Day 180 post-vaccination ]
    Immunogenicity of one dose of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by hSBA GMTs directed against N. meningitidis serogroups A, C, W, and Y on Day 29 after vaccination. Persistence of immune response was measured by hSBA GMTs at Day 180 after vaccination.
  • Percentages of Subjects With Rabbit Serum Bactericidal Assay (rSBA) Titer ≥ 8 Against Serogroups A, C, W, and Y After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 1, Day 29 and Day 180 post-vaccination ]
    Immunogenicity of one dose of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by the percentages of subjects with rSBA titer ≥ 8 directed against N. meningitidis serogroups A, C, W, and Y on Day 29 after vaccination. Persistence of immune response was measured by percentages of subjects with rSBA titer ≥ 8 on Day 180 after vaccination.
  • Percentages of Subjects With rSBA Titer ≥ 128 Against Serogroups A, C, W, and Y After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 1, Day 29 and Day 180 post-vaccination ]
    Immunogenicity of one dose of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by the percentages of subjects with rSBA titer ≥ 128 directed against N. meningitidis serogroups A, C, W, and Y on Day 29 after vaccination. Persistence of immune response was measured by percentages of subjects with rSBA titer ≥ 128 on Day 180 after vaccination.
  • Percentages of Subjects With Four-fold Increase in rSBA Titers Against Serogroups A, C, W, and Y After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 29 and Day 180 post-vaccination ]
    Immunogenicity of one dose of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by the percentages of subjects with four-fold increase in rSBA titer directed against N. meningitides serogroups A, C, W, and Y on Day 29 after vaccination. Persistence of immune response was measured by the percentages of subjects with four-fold increase in rSBA titer on Day 180 after vaccination.
  • rSBA GMT Against N. Meningitidis Against Serogroups A, C, W, and Y After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 1, Day 29 and Day 180 post-vaccination ]
    Immunogenicity of one dose of MenACWY-CRM and comparator MenACWY-TT vaccine was assessed in subjects (12 to 15 months old) as measured by rSBA GMTs directed against N. meningitidis serogroups A, C, W, and Y on Day 29 after vaccination. Persistence of immune responses was measured by rSBA GMTs on Day 180.
  • Number of Subjects Reporting Solicited Adverse Events (AEs) After Receiving One Dose of Either MenACWY-CRM Vaccine or MenACWY-TT Vaccine. [ Time Frame: Day 1 (6 hours) to Day 7 post-vaccination ]
    Safety was assessed in terms of number of subjects (12 to 15 months old) reporting any and each of solicited local and systemic AEs reported from Day 1 to 7 after vaccination with one dose of either MenACWY-CRM or comparator MenACWY-TT vaccine.
  • Number of Subjects Reporting Unsolicited (AEs) After Receiving One Dose of Either MenACWY-CRM Vaccine

    Original Secondary Outcome:

    • hSBA titer ≥ 8 against serogroups A, C, W, Y [ Time Frame: day 29 and day 180 post vaccination ]
      To assess immune response to study vaccines on days 29 and 180, as measured by % subjects with hSBA titer ≥8, % subjects with hSBA seroresponse, and hSBA GMTs, and % subjects with rSBA titer ≥8 and ≥ 128, 4-fold rise, and rSBA GMTs, and to evaluate the reactogenicity and safety of the study vaccines
    • Percentage of subjects with hSBA seroresponse against serogroups A, C, W, Y [ Time Frame: day 29 and day 180 post vaccination ]
    • Adverse Events and other indicators of reactogenicity [ Time Frame: Day 1 to Day 180 post vaccination ]
    • hSBA GMTs against serogroups A, C, W, Y [ Time Frame: Day 29 and day 180 post vaccination ]
    • rSBA titer ≥ 8 against serogroups A, C, W, Y [ Time Frame: Day 29 and day 180 post vaccination ]
    • rSBA titer ≥ 128 against serogroups A, C, W, Y [ Time Frame: Day 29 and day 180 post vaccination ]
    • Four fold rise of rSBA titers against serogroups A, C, W, Y [ Time Frame: Day 29 and Day 180 post-vaccination ]
    • rSBA GMTs against serogroups A, C, W, Y [ Time Frame: Day 29 and day 180 post vaccination ]


    Information By: Novartis

    Dates:
    Date Received: November 11, 2013
    Date Started: November 2013
    Date Completion:
    Last Updated: October 2, 2015
    Last Verified: October 2015