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Trial details imported from

For full trial details, please see the original record at

Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
Immunogenicity, Antibody Persistence and Safety of GSK Biologicals' DTPa (INFANRIX) and dTpa (BOOSTRIX) Vaccines.
Scientific title
Phase IIIb Study to Evaluate Immunogenicity, Antibody Persistency and Reactogenicity of DTPa - INFANRIX and dTpa - BOOSTRIX Vaccines Administered to Healthy Children Previously Primed With 3 Doses of DTPa Vaccine Compared to Placebo (HAVRIX®JUNIOR)
Secondary ID [1] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Acellular Pertussis 0 0
Tetanus 0 0
Diphtheria 0 0
Condition category
Condition code
Infection 0 0 0 0
Other infectious diseases

Study type
Description of intervention(s) / exposure
Other interventions - INFANRIX
Other interventions - BOOSTRIX
Other interventions - HAVRIX

Other interventions: INFANRIX

Other interventions: BOOSTRIX

Other interventions: HAVRIX

Intervention code [1] 0 0
Other interventions
Comparator / control treatment
Control group

Primary outcome [1] 0 0
Anti-diphtheria and anti-tetanus antibody concentration (1M, 15-18M & 27-29M after vacc)
Timepoint [1] 0 0
Primary outcome [2] 0 0
Occurrence of local injection site reactions (1M after vacc).
Timepoint [2] 0 0
Secondary outcome [1] 0 0
Antibody concentration to all vaccine antigens (1M, 15-18M & 27-29M after vacc),
Timepoint [1] 0 0
Secondary outcome [2] 0 0
Solicited (Day 0-14) & Unsolicited symptoms (Day 0-30),
Timepoint [2] 0 0
Secondary outcome [3] 0 0
SAEs (full study).
Timepoint [3] 0 0

Key inclusion criteria
- Male or female children between and including 18 -20 months of age at the time of the

- Completed a primary vaccination course with DTPa (INFANRIX) vaccine at 2, 4, and 6

- Written informed consent obtained before study entry from the parents or guardians of
the subject.

- Free of obvious health problems as established by medical history and clinical
examination before entering into the study.
Minimum age
18 Months
Maximum age
20 Months
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
- Use of any investigational or non-registered drug or vaccine other than the study
vaccine(s) within 30 days preceding the administration of the study vaccine dose, or
planned use during the study period.

- Evidence of previous or intercurrent diphtheria, tetanus, or pertussis disease, or of
vaccination against any of these diseases since completion of the primary course of
DTPa (INFANRIX) vaccine.

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?

Intervention assignment
Other design features
Phase 4
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
GSK Investigational Site - Carlton
Recruitment postcode(s) [1] 0 0
3053 - Carlton

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry

Ethics approval
Ethics application status

Brief summary
To evaluate the immunogenicity, persistence of antibodies and reactogenicity of GSK
Biologicals' DTPa (INFANRIX) and dTpa (BOOSTRIX), when administered to subjects 18-20 months
old, compared with not giving a booster DTP vaccine at 18-20 months. Study double blinded for
the two DTP vaccines and single blinded for the control arm.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 0 0
GSK Clinical Trials
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
For IPD and results data, please see