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Completed

NCT Number: NCT00329901

Immunogenicity and Safety of the Concomitant Administration of a Tdap Vaccine and Meningococcal ACWY Conjugate Vaccine in Healthy Subjects Aged 11-25 Years

Immunogenicity and Safety of the Concomitant Administration of a Tdap Vaccine and Meningococcal ACWY Conjugate Vaccine in Healthy Subjects Aged 11-25 Years

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Key information

Conditions

Meningococcal Disease Bacterial Infections Bacterial Infections and Mycoses Central Nervous System Bacterial Infections Central Nervous System Diseases Central Nervous System Infections Gram-Negative Bacterial Infections Infections Meningitis Meningitis, Bacterial Meningitis, Meningococcal Meningococcal Infections Meningococcal Meningitis Neisseriaceae Infections Nervous System Diseases Neuroinflammatory Diseases

Age range

11 year–25 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Andria, Italy

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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

Treatment and study plan

Meningococcal ACWY conjugate vaccine (MenACWY-CRM)

Biological

Combined tetanus, reduced diphtheria and acellular pertussis vaccine (Tdap)

Biological

Saline placebo

Biological

4.5 mg sodium chloride per 0.5 ml dose

Primary outcomes

  1. 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

    Time frame: 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

    • the percentage of subjects with antibody levels against diphtheria toxin ≥ 1.0 IU/mL and against tetanus toxin ≥ 1.0 IU/mL and
    • 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 outcomes

  1. 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

    Time frame: 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.

  2. 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

    Time frame: 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.

  3. 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

    Time frame: 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.

  4. 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

    Time frame: 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).

  5. 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

    Time frame: 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.

  6. 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

    Time frame: 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.

  7. Percentage of Subjects With hSBA Seroresponse, When MenACWY-CRM is Concomitantly Administered With Tdap Compared to MenACWY-CRM Given Concomitantly With Saline Placebo

    Time frame: 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.

  8. 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

    Time frame: 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.

  9. 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

    Time frame: 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

  10. 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

    Time frame: 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.

Sponsors and collaborators

Lead sponsor

Novartis Vaccines

Industry

Registry information

Official study title

A Phase 3, Multi-Center, Observer Blind, Controlled, Randomized Study to Compare the Immunogenicity and Safety of the Concomitant Administration of a Combined Tetanus, Reduced Diphtheria, and Acellular Pertussis (Tdap) Vaccine and Chiron (Now Novartis) Meningococcal ACWY Conjugate Vaccine, With Either One Dose of Acellular Pertussis (Tdap) Vaccine, or One Dose of Chiron (Now Novartis) Meningococcal ACWY Conjugate Vaccine, in Healthy Subjects Aged 11-25 Years

Important dates

Study start
2006
Primary completion
2007
Study completion
2007
First posted
May 25, 2006
Registry last updated
Jun 18, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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