Immunogenicity and Safety of the Concomitant Administration of a Tdap Vaccine and Meningococcal ACWY Conjugate Vaccine in Healthy Subjects Aged 11-25 Years
- Conditions
- Meningococcal DiseaseMeningococcal Meningitis
- Interventions
- Biological: Meningococcal ACWY conjugate vaccine (MenACWY-CRM)Biological: Combined tetanus, reduced diphtheria and acellular pertussis vaccine (Tdap)Biological: saline placebo
- Registration Number
- NCT00329901
- Lead Sponsor
- Novartis Vaccines
- Brief Summary
Immunogenicity and Safety of the Concomitant Administration of a Tdap Vaccine and Meningococcal ACWY Conjugate Vaccine in Healthy Subjects Aged 11-25 Years
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 1072
- Male and female 11-25 years old healthy subjects;
- who had received the primary immunization with a vaccine containing DT or Tdap antigens and a T, Td, or Tdap booster injection at least 5 years prior to study entry
- previous ascertained or suspected disease caused by N. meningitidis
- previously been immunized with a meningococcal vaccine or vaccine containing meningococcal antigen(s)
- serious acute, chronic or progressive disease
- history of any anaphylaxis, serious vaccine reactions, or allergy to any vaccine component
- known or suspected impairment/alteration of immune function, either congenital or acquired
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Tdap + MenACWY-CRM Meningococcal ACWY conjugate vaccine (MenACWY-CRM) Subjects received Tdap and MenACWY-CRM vaccines concomitantly, in separate arms Tdap + MenACWY-CRM Combined tetanus, reduced diphtheria and acellular pertussis vaccine (Tdap) Subjects received Tdap and MenACWY-CRM vaccines concomitantly, in separate arms Tdap + saline Combined tetanus, reduced diphtheria and acellular pertussis vaccine (Tdap) Subjects received Tdap vaccine and saline (placebo) concomitantly, in separate arms Tdap + saline saline placebo Subjects received Tdap vaccine and saline (placebo) concomitantly, in separate arms MenACWY-CRM + saline Meningococcal ACWY conjugate vaccine (MenACWY-CRM) Subjects received MenACWY-CRM vaccine and saline (placebo) concomitantly, in separate arms MenACWY-CRM + saline saline placebo Subjects received MenACWY-CRM vaccine and saline (placebo) concomitantly, in separate arms
- Primary Outcome Measures
Name Time Method Percentage of Subjects With an Immune Response Against Diphtheria, Tetanus and Pertussis, When Tdap is Concomitantly Administered With MenACWY-CRM Compared to Tdap Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) To demonstrate that the immunogenicity of one injection of Tdap vaccine, concomitantly administered with MenACWY-CRM vaccine, is not inferior to that of one injection of Tdap vaccine, concomitantly administered with saline placebo, in terms of
1. the percentage of subjects with antibody levels against diphtheria toxin ≥ 1.0 IU/mL and against tetanus toxin ≥ 1.0 IU/mL and
2. the percentage of subjects with at least 4 fold increase in antibody levels against pertussis toxin (PT), filamentous hemagglutinin (FHA) and pertactin (PRN) at 1 month after immunization, as measured by enzyme linked immunosorbent assay (ELISA).
- Secondary Outcome Measures
Name Time Method The hSBA Geometric Mean Titers Against N.Meningitidis Serogroups A,C,W and Y, When MenACWY-CRM is Concomitantly Administered With Tdap Vaccine Compared to MenACWY-CRM Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) The hSBA geometric mean titers (GMTs) against N.meningitidis serogroups A,C,W and Y, at baseline and at one month, following concomitant administration of MenACWY-CRM vaccine with Tdap vaccine, as compared to when MenACWY-CRM was given concomitantly with saline placebo.
Geometric Mean Ratios of hSBA Titers Against N.Meningitidis Serogroups A,C,W and Y, When MenACWY-CRM is Concomitantly Administered With Tdap Compared to MenACWY-CRM Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) The geometric mean ratios (GMRs-day 29/day1)of post-vaccination versus pre- vaccination hSBA titers against N.meningitidis serogroups A,C,W and Y, when MenACWY-CRM vaccine is concomitantly administered with Tdap vaccine as compared to when MenACWY-CRM was given concomitantly with saline placebo.
Percentage of Subjects With hSBA Seroresponse, When MenACWY-CRM is Concomitantly Administered With Tdap Compared to MenACWY-CRM Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) The percentage of subjects showing an hSBA seroresponse against N.meningitidis serogroups A,C,W and Y, following concomitant administration of MenACWY-CRM vaccine with Tdap vaccine as compared to when MenACWY-CRM was given concomitantly with saline placebo.
Seroresponse to MenACWY-CRM is defined as a pre-vaccination hSBA titer \< 1:4 to a post-vaccination hSBA titer of ≥ 1:8 or a pre-vaccination hSBA titer ≥ 1:4 to a post-vaccination titer of at least four times the baseline hSBA titer.Number of Subjects With Solicited Local and Systemic Adverse Events When Tdap is Concomitantly Administered With MenACWY-CRM Compared to When MenACWY-CRM is Concomitantly Administered With Saline Placebo Day 1-7 after any vaccination The number of subjects reporting solicited local and systemic reactions following concomitant administration of MenACWY-CRM vaccine and Tdap vaccine as compared to when MenACWY-CRM vaccine was concomitantly administered with saline placebo.
Number of Subjects With Solicited Local and Systemic Adverse Events When Tdap is Concomitantly Administered With MenACWY-CRM Compared to When Tdap is Concomitantly Administered With Saline Placebo Day 1-7 after any vaccination The number of subjects reporting solicited local and systemic reactions following concomitant administration of MenACWY-CRM vaccine and Tdap vaccine as compared to when Tdap was concomitantly administered with saline placebo
Number of Subjects With Unsolicited Adverse Events When Tdap is Concomitantly Administered With MenACWY-CRM Compared to MenACWY-CRM or Tdap Concomitantly Administered With Saline Placebo Throughout the study (Day 1 to Day 181) The number of subjects reporting any unsolicited adverse events (AEs) when Tdap is concomitantly administered with MenACWY-CRM as compared to when MenACWY-CRM vaccine or Tdap vaccine was concomitantly administered with saline placebo.
Percentage of Subjects With Anti-diphtheria and Anti-tetanus Concentrations ≥ 0.1 IU/mL When Tdap is Administered Concomitantly With MenACWY-CRM Vaccine Compared to Tdap Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) The percentage of subjects with anti-diphtheria and anti-tetanus concentrations ≥ 0.1 IU/mL (as measured by ELISA) following concomitant administration of Tdap vaccine with MenACWY-CRM vaccine as compared to when Tdap was given concomitantly with saline placebo.
Geometric Mean Concentrations (GMCs) of Antibodies Against Diphtheria,Tetanus and Pertussis Antigens After Concomitant Administration of Tdap With MenACWY-CRM Compared to Tdap Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) The geometric mean concentrations of antibodies ≥ 0.1 IU/mL against diphtheria, tetanus and pertussis (PT, FHA and PRN) antigens in subjects, as measured by ELISA, following concomitant administration of Tdap with MenACWY-CRM as compared to when Tdap given concomitantly with saline placebo.
Geometric Mean Ratios of Antibody Concentrations Against Diphtheria,Tetanus and Pertussis Antigens When Tdap is Administered Concomitantly With MenACWY-CRM Vaccine Compared to Tdap Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) The geometric mean ratios (GMRs- day 29/day 1) of post-vaccination versus pre- vaccination antibody concentrations against diptheria, tetanus and pertussis (PT, FHA and PRN) antigens following concomitant administration of Tdap vaccine with MenACWY-CRM vaccine as compared to when Tdap was given concomitantly with saline placebo.
Percentage of Subjects With Serum Bactericidal Antibody Titers ≥1:4 and ≥1:8, When MenACWY-CRM is Concomitantly Administered With Tdap Vaccine Compared to MenACWY-CRM Given Concomitantly With Saline Placebo 1 month after vaccination (Day 29) The percentage of subjects with serum bactericidal antibody titers(hSBA) ≥ 1:4 and ≥ 1:8 against Neisseria meningitidis serogroups A,C,W and Y,following concomitant administration of MenACWY-CRM vaccine with Tdap vaccine as compared to when MenACWY-CRM was given concomitantly with saline placebo.
The serum bactericidal antibodies directed against N.meningitidis serogroup A, C, W and Y, are measured by human complement Serum Bactericidal Assay (hSBA).