NCT00771849

Brief Summary

The study investigated safety profile and the antibody responses to an experimental tetravalent meningococcal diphtheria conjugate vaccine (Menactra®) in children who have received a monovalent meningococcal C conjugate vaccine at least one year previously. Primary objective: To describe and compare the Serum Bactericidal Assay (SBA) antibody response for serogroup C in participants receiving Menactra® to the serogroup C antibody response in a control group of participants receiving a licensed Haemophilus Influenzae Type b (Hib) conjugate vaccine 28 days following vaccination.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
103

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Aug 2003

Shorter than P25 for phase_2

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2003

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2004

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2004

Completed
4.5 years until next milestone

First Submitted

Initial submission to the registry

October 13, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 15, 2008

Completed
6 months until next milestone

Results Posted

Study results publicly available

April 24, 2009

Completed
Last Updated

April 14, 2016

Status Verified

April 1, 2016

Enrollment Period

7 months

First QC Date

October 13, 2008

Results QC Date

March 16, 2009

Last Update Submit

April 12, 2016

Conditions

Keywords

MeningitisMeningococcemiaNeisseria meningitidis

Outcome Measures

Primary Outcomes (1)

  • Geometric Mean of Antibody Titers (GMTs) as Measured by Serum Bactericidal Assay (SBA) at Baseline (Day 0) and Day 28 Post-vaccination.

    Day 0 (before) and 28 days post-vaccination

Secondary Outcomes (1)

  • Participants With a ≥ 4-Fold Rise in Antibody Titers as Measured by Serum Bactericidal Assay (SBA) From Baseline to Day 28 Post-vaccination.

    28 days post-vaccination

Study Arms (2)

Menactra® Vaccine Group

EXPERIMENTAL

Participants receiving the tetravalent (A, C, Y, and W 135) meningococcal diphtheria toxoid conjugate vaccine

Biological: Meningococcal Polysaccharide Diphtheria Toxoid Conjugate

Hiberix® Vaccine Group

ACTIVE COMPARATOR

Participants receiving Haemophilus Influenzae Type b (Hib) vaccine

Biological: Haemophilus Influenzae Type b (Hib) vaccine

Interventions

0.5 mL, Intramuscular

Also known as: Menactra®
Menactra® Vaccine Group

0.5 mL, Intramuscular

Also known as: Hiberix®
Hiberix® Vaccine Group

Eligibility Criteria

Age2 Years - 4 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Participant is healthy, as determined by medical history and physical examination.
  • Participant is 2 years to \< 5 years of age at the time of vaccination.
  • At least one year from primary vaccination with a monovalent meningococcal C conjugate vaccine has elapsed.
  • Parent/Guardian has signed an Ethics Committee-approved informed consent form. A culturally appropriate translation will be used for non-English speaking participants where required.

You may not qualify if:

  • Serious chronic disease (i.e. cardiac, renal, neurologic, metabolic, rheumatologic, etc.)
  • Known or suspected impairment of immunologic function
  • History of documented invasive meningococcal disease
  • Administration of immune globulin, other blood products within the last three months, injected or oral corticosteroids or other immunomodulatory therapy within six weeks of the study vaccine. Individuals on a tapering dose schedule of oral steroids lasting \< 7 days may be included in the trial as long as they have not received more than one course within the last two weeks prior to enrolment
  • Antibiotic therapy within the 72 hours prior to vaccination or 72 hours prior to drawing any blood sample
  • Received any vaccine in the 28-day period prior to enrolment, or scheduled to receive any vaccine during enrolment in the trial
  • Received a meningococcal C conjugate vaccine within one year prior to enrolment
  • Suspected or known hypersensitivity to any of the vaccine components
  • Unavailable for the entire study period or unable to attend the scheduled visits or to comply with the study procedures
  • Enrolled in another clinical trial
  • Any condition, which, in the opinion of the investigator, would pose a health risk to the participant or interfere with the evaluation of the vaccine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Unknown Facility

London, E1 1BB, United Kingdom

Location

Unknown Facility

London, SW17 ORE, United Kingdom

Location

Related Publications (1)

  • El Bashir H, Heath PT, Papa T, Ruggeberg JU, Johnson N, Sinha R, Balfour G, Booy R. Antibody responses to meningococcal (groups A, C, Y and W135) polysaccharide diphtheria toxoid conjugate vaccine in children who previously received meningococcal C conjugate vaccine. Vaccine. 2006 Mar 24;24(14):2544-9. doi: 10.1016/j.vaccine.2005.12.018. Epub 2005 Dec 27.

Related Links

MeSH Terms

Conditions

MeningitisMeningococcal Infections

Interventions

Meningococcal VaccinesVaccinesHiberix

Condition Hierarchy (Ancestors)

Neuroinflammatory DiseasesNervous System DiseasesNeisseriaceae InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Intervention Hierarchy (Ancestors)

Bacterial VaccinesBiological ProductsComplex Mixtures

Results Point of Contact

Title
Medical Director
Organization
Sanofi Pasteur Inc.

Study Officials

  • Medical Monitor

    Sanofi Pasteur Inc.

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 13, 2008

First Posted

October 15, 2008

Study Start

August 1, 2003

Primary Completion

March 1, 2004

Study Completion

May 1, 2004

Last Updated

April 14, 2016

Results First Posted

April 24, 2009

Record last verified: 2016-04

Locations