Double-blind Study of Safety and Immunogenicity of Two Candidate Malaria Vaccines in Gabonese Children

This study has been completed.
Sponsor:
Information provided by:
GlaxoSmithKline
ClinicalTrials.gov Identifier:
NCT00307021
First received: February 16, 2006
Last updated: September 29, 2011
Last verified: September 2011

February 16, 2006
September 29, 2011
April 2006
August 2007   (final data collection date for primary outcome measure)
  • Occurrence of SAEs. [ Time Frame: From the time of first vaccination until one month post Dose 3 ] [ Designated as safety issue: No ]
  • Antibody titers to the P. falciparum circumsporozoite repeat domain (anti-CS). [ Time Frame: One month post Dose 3. ] [ Designated as safety issue: No ]
safety and immunogenicity up to one month post final vaccine dose
Complete list of historical versions of study NCT00307021 on ClinicalTrials.gov Archive Site
  • Occurrence of solicited general and local reactions. [ Time Frame: Over a 7-day follow-up period after each vaccination. ] [ Designated as safety issue: No ]
  • Occurrence of unsolicited symptoms. [ Time Frame: After each vaccination over a 30-day follow-up ] [ Designated as safety issue: No ]
  • Anti-CS antibody titers. [ Time Frame: Prior to vaccination, one month post Dose 2 ] [ Designated as safety issue: No ]
  • Anti-Hepatitis B surface agent (anti-HBs) antibody titers. [ Time Frame: Prior to vaccination, one month post Dose 2 and one month post Dose 3. ] [ Designated as safety issue: No ]
reactogenicity, non-inferiority and immunogenicity up to one month post final vaccine dose
Not Provided
Not Provided
 
Double-blind Study of Safety and Immunogenicity of Two Candidate Malaria Vaccines in Gabonese Children
Bridging Safety & Immunogenicity Study of GSK Biologicals' Candidate Malaria Vaccine RTS,S/AS01E (0.5 mL Dose) to RTS,S/AS02D (0.5 mL Dose) Administered IM According to a 0, 1, 2-Month Schedule in Gabonese Children Aged 18 Months to 4 Years

GSK Biologicals is developing a number of candidate malaria vaccines for the routine immunization of infants and children living in malaria-endemic areas. The candidate vaccines are designed to offer protection against malaria disease due to the parasite Plasmodium falciparum. Candidate vaccines containing the RTS,S antigen would also provide protection against infection with hepatitis B virus (HBV). This study will evaluate two candidate vaccines. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Not Provided
Interventional
Phase 2
Allocation: Randomized
Endpoint Classification: Safety Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Caregiver, Outcomes Assessor)
Primary Purpose: Prevention
Plasmodium Falciparum Malaria
Biological: GSK Biologicals' candidate Plasmodium falciparum malaria vaccine 257049
3-dose intramuscular injection, 2 different formulations
  • Active Comparator: Group A
    Intervention: Biological: GSK Biologicals' candidate Plasmodium falciparum malaria vaccine 257049
  • Experimental: Group B
    Intervention: Biological: GSK Biologicals' candidate Plasmodium falciparum malaria vaccine 257049

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
180
August 2007
August 2007   (final data collection date for primary outcome measure)

Inclusion criteria:

  • A male or female child between 18 months and 4 years of age (up to but not including 5th birthday) at the time of first vaccination.
  • Written or oral, signed or thumb-printed and witnessed informed consent obtained from the parent(s)/guardian(s) of the child.
  • Subjects who the investigator believes that their parents/guardians can and will comply with the requirements of the protocol (e.g. return for follow-up visits)

Exclusion criteria:

  • Acute disease at the time of enrolment.
  • Serious acute or chronic illness determined by clinical or physical examination and laboratory screening tests.
  • Laboratory screening tests for haemoglobin, total white cell count, platelets, ALT and creatinine out of range.
  • Planned administration/administration of a vaccine not foreseen by the study protocol within 30 days of the first dose of vaccine(s) with the exception of tetanus toxoid.
  • Use of any investigational or non-registered drug or vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period.
  • Administration of immunoglobulins, blood transfusions or other blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.
  • Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose.
  • Previous participation in any other malaria vaccine trial.
  • Simultaneous participation in any other clinical trial.
  • Same sex twin.
  • History of allergic reactions (significant IgE-mediated events) or anaphylaxis to previous immunizations.
  • History of allergic disease or reactions likely to be exacerbated by any component of the vaccine.
  • Any other findings that the investigator feels would increase the risk of having an adverse outcome from participation in the trial.
Both
18 Months to 48 Months
Yes
Contact information is only displayed when the study is recruiting subjects
Gabon
 
NCT00307021
105874
Not Provided
Cheri Hudson; Clinical Disclosure Advisor, GSK Clinical Disclosure
GlaxoSmithKline
Not Provided
Study Director: GSK Clinical Trials GlaxoSmithKline
GlaxoSmithKline
September 2011

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP