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Response to GSK Biologicals' Tritanrix-HepB/Hib-MenAC Vacc (4th Dose) at 15-24m & Mencevax ACWY at 24-30m
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
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The purpose of the study is to evaluate the immunogenicity, safety and reactogenicity of a booster dose of DTPw-HBV/Hib-MenAC compared to DTPw-HBV/Hib given to healthy subjects at 15 to 24 months of age primed with 3 doses of Tritanrix™-HepB/Hib-MenAC in study 100480. Antibody persistence will be evaluated at 24 to 30 months. Immunogenicity, safety and reactogenicity of a dose of Mencevax™ ACWY given at 24 to 30 months will also be evaluated when given to subjects not boosted with a MenA conjugate and/or MenC containing vaccine.
Condition or disease
Whole Cell PertussisHaemophilus Influenzae Type bHepatitis BDiphtheriaTetanus
This study will be conducted in two stages. In the DTP booster phase subjects will receive a booster dose of Tritanrix™-HepB/Hib-MenAC or Tritanrix™-HepB/Hib (active control) at 15 to 24 months in a single-blind manner so that the subjects' parents will not know which vaccine was administered to their child (this booster phase is no longer recruiting). In the Mencevax™ ACWY phase at 24-30 months a dose of Mencevax™ ACWY will be given to subjects who were not boosted with a MenA conjugate and/or MenC containing vaccine at 15-24 months in an open manner (this booster phase is not yet recruiting). Up to four blood samples will be taken: before and one month after the administration of the DTP booster dose and of Mencevax™ ACWY. To comply with the immunisation calender of Thailand, at 15-24 months all subjects will receive OPV. At 16-25 months 2 doses of Japanese Encephalitis (JE) vaccine or a dose of varicella vaccine will be offered and at 25-31 months a dose of varicella or JE vaccine will be offered.
Assess Immunogenicity, Safety & Reactogenicity of a 4th Dose of GSK Biologicals' Tritanrix™-HepB/Hib-MenAC at 15-24 m & of a Dose of Mencevax™ ACWY at 24-30 m in Subjects Primed With 3 Doses of Tritanrix™-HepB/Hib-MenAC
Study Start Date
Primary Completion Date
Study Completion Date
Resource links provided by the National Library of Medicine
1M post 4th dose of study vaccine & applicable control: SBA-MenC/A≥128, anti-PRP≥1. 1M post Mencevax booster in subjects primed with MenAC conjugate: SBA-MenC/A≥128.
Secondary Outcome Measures
Pre and 1M post each vacc dose: antibody conc or titer, seroprot, seropos and/or vacc response to all antigens administered. Loc/gen symp: D 0-3, unsol symp: D 0-30 post each vac. SAE for entire study.
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Ages Eligible for Study:
427 Days to 730 Days (Child)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Healthy male or female between and including 15 and 24 months of age
Having participated in the primary vaccination study DTPW-HBV=HIB-MENAC-TT-003 (eTrack No. 100480)
Booster vaccination against diphtheria, tetanus, pertussis, hepatitis B, Haemophilus influenzae type b (Hib) and/or meningococcal serogroups A and/or C disease not foreseen in the protocol, after the date of the study conclusion visit of the primary vaccination study DTPW-HBV=HIB-MENAC-TT-003 (eTrack No. 100480).
History of or known exposure to diphtheria, tetanus, pertussis, hepatitis B, Hib and/or meningococcal serogroup A or C disease.
Any confirmed or suspected immunosuppressive or immunodeficient condition.
A family history of congenital or hereditary immunodeficiency.
Major congenital defects or serious chronic illness.
History of any neurologic disorders or seizures including febrile seizures (at least two events) in infancy.