Efficacy of RTS,S/AS01 Vaccine Against Episodes of Malaria Due to P. Falciparum Infection in Children.

Sponsor
GlaxoSmithKline (Industry)
Overall Status
Completed
CT.gov ID
NCT00380393
Collaborator
(none)
894
2
2
22.3
447
20.1

Study Details

Study Description

Brief Summary

This phase IIb trial is being done to find out if the RTS,S/AS01 vaccine helps to prevent children from falling ill with malaria and to evaluate vaccine safety.

The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Condition or Disease Intervention/Treatment Phase
  • Biological: GSK malaria vaccine 257049 Vaccine
  • Biological: Sanofi-Pasteur's Human Diploid Cell Rabies Vaccine
Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
894 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Care Provider, Outcomes Assessor)
Primary Purpose:
Prevention
Official Title:
A Study of the Efficacy Against Episodes of Clinical Malaria Due to P. Falciparum Infection of GSK Biologicals Candidate Vaccine RTS,S/AS01, Administered According to a 0,1,2-months Schedule in Children Aged 5 to 17 Months Living in Tanzania & Kenya
Actual Study Start Date :
Jan 3, 2007
Actual Primary Completion Date :
Aug 15, 2008
Actual Study Completion Date :
Nov 11, 2008

Arms and Interventions

Arm Intervention/Treatment
Experimental: GSK257049 Group

Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.

Biological: GSK malaria vaccine 257049 Vaccine
3 dose intramuscular injection
Other Names:
  • RTS
  • S/AS01E vaccine
  • Active Comparator: Rabipur Group

    Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.

    Biological: Sanofi-Pasteur's Human Diploid Cell Rabies Vaccine
    3 dose intramuscular injection

    Outcome Measures

    Primary Outcome Measures

    1. Frequency of First Case of Malaria Meeting the Primary Case Definition [Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)]

      The first case of malaria meeting the primary case definition was defined as the first or only episodes with the presence of Plasmodium falciparum asexual parasitemia above (>) 2500 per microliter (μL) and the presence of fever greater than or equal to (≥) 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of first case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.

    Secondary Outcome Measures

    1. Frequency of First Case Malaria Meeting the Secondary Case Definition [Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)]

      The first case of malaria meeting the secondary case definition was defined as the first or only episodes with the presence of P.falciparum asexual parasitemia > 0 per μL and the presence of fever ≥ 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of first case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.

    2. Multiple Events of Malaria Meeting the Primary Case Definition [Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)]

      Multiple episodes of malaria meeting the primary case definition was defined as episodes with the presence of P.falciparum asexual parasitemia > 25000 per μL and the presence of fever ≥ 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of primary case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.

    3. Multiple Events of Malaria Meeting the Secondary Case Definition [Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)]

      Multiple episodes of malaria meeting the secondary case definition was defined as episodes with the presence of P.falciparum asexual parasitemia > 0 per μL and the presence of fever ≥ 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of secondary case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.

    4. Number of Subjects Positive for P. Falciparum Parasitaemia [At the Cross-Sectional Visit that took place for each participant at on average 7.8 months post Dose 3 (range 4.3 to 10.3 months)]

    5. Geometric Mean Density of Asexual P. Falciparum Parasite [At the Cross-Sectional Visit that took place for each participant at on average 7.8 months post Dose 3 (range 4.3 to 10.3 months)]

      Estimates of asexual P. falciparum parasite density were made at the investigator's sites according to laboratory standard operating procedures. Parasite density was presented as a geometric mean (GMean), expressed in parasite per microliters (μL).

    6. Haemoglobin Values at Cross-Sectional Visit [At the Cross-Sectional Visit that took place for each participant at on average 7.8 months post Dose 3 (range 4.3 to 10.3 months)]

      Haemoglobin values are expressed in grams per deciliter (g/dL).

    7. Number of Subjects With Any and Grade 3 Solicited Local Symptoms [During the 7-day (Days 0-6) post-vaccination period following each dose and across doses]

      Assessed solicited local symptoms were pain and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 swelling = swelling spreading beyond 20 millimeters (mm) of injection site.

    8. Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms [During the 7-day (Days 0-6) post-vaccination period following each dose and across doses]

      Assessed solicited general symptoms were drowsiness, fever [defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)], irritability and loss of appetite. Any = occurrence of the symptom regardless of intensity grade. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever higher than (>) 39.0 °C. Related = symptom assessed by the investigator as related to the vaccination.

    9. Number of Subjects With Any Unsolicited Adverse Events (AEs) [Within the 30-day (Days 0-29) post-vaccination follow-up period]

      An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

    10. Number of Subjects With Serious Adverse Events (SAEs) [Throughout the study period (Day 0 - Month 14)]

      Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

    11. Number of Subjects With Hemoglobin Values Outside Normal Ranges With Toxicity Grades [At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)]

      Definitions for toxicity grading for hemoglobin were: Normal Hemoglobin = equal to or above (≥) 8.0 g/dL; Grade 1 Hemoglobin = under (<) 8.0 g/dL and above (>) 6.0 g/dL.; Grade 2 Hemoglobin = under (<) 6.0 g/dL.

    12. Number of Subjects With White Blood Cell (WBC) Values Outside Normal Ranges With Toxicity Grades [At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)]

      Definitions for toxicity grading for WBC were: Normal WBC = ≥ 4.0 x 10^3 cells per microliters (cells/μL) or < 17 x 10^3 cells /μL; Grade 1 WBC = 2.5 to 4.0 x 10^3 cells/μL.

    13. Number of Subjects With Platelet Values Outside Normal Ranges With Toxicity Grades [At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)]

      Definitions for toxicity grading for platelets were: Normal Platelets = ≥ 75 x 10^3 cells/μL; Grade 1 Platelets = 50 to 74 x 10^3 /μL; Grade 2 Platelets = 25 to 49 x 10^3 /μL; Grade 3 Platelets = < 25 x 10^3 /μL.

    14. Number of Subjects With Alanine Aminotransferase (ALT) Values Outside Normal Ranges With Toxicity Grades [At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)]

      Definition for toxicity grading for ALT were: Normal ALT = ≤ 60 international units per liter (IU/L); Grade 1 ALT = 1.1 to 2.5 x Upper Limit of Normal (ULN); Grade 2 ALT = 2.6 to 5.0 x ULN.

    15. Number of Subjects With Creatinine Values Outside Normal Ranges With Toxicity Grades [At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)]

      Definition for toxicity grading for creatinine were: Normal Creatinine = ≤ 60 micromols per liter (μmol/L); Grade 1 Creatinine = 1.1 to 1.5 x ULN; Grade 2 Creatinine = 1.6 to 3.0 x ULN.

    16. Concentration of Antibodies Against the P. Falciparum Circumsporozoite (CS) Repeat Domain (Anti-CS) [At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)]

      Concentrations are presented as geometric mean concentrations (GMCs), expressed in enzyme-linked immunosorbent assay (ELISA) units per milliliter (EU/mL).

    17. Concentration of Antibodies Against Hepatitis B Surface Antigen (Anti-HBs) [At Day 0 and at Month 3]

      Concentrations are presented as geometric mean concentrations (GMCs), expressed in enzyme-linked immunosorbent assay (ELISA) units per milliliter (EU/mL).

    18. Frequency of Cluster of Differentiation 4 (CD4+) CS-specific T-cells [Prior to vaccination (Day 0)]

      T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).

    19. Frequency of Cluster of Differentiation 8 (CD8+) CS-specific T-cells [Prior to vaccination (Day 0)]

      T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).

    20. Frequency of Cluster of Differentiation 4 (CD4+) CS-specific T-cells [At Month 3]

      T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).

    21. Frequency of Cluster of Differentiation 8 (CD8+) CS-specific T-cells [At Month 3]

      T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    5 Months to 17 Months
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    • A male or female child of between 5 months and 17 months of age 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.

    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 acceptable limits.

    • Planned administration/administration of a vaccine not foreseen by the study within 30 days of the first dose of vaccine(s) with the exception of tetanus toxoid or scheduled diphtheria, pertussis or measles vaccine.

    • 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 (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within 6 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.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 GSK Investigational Site Kilifi Kenya 80108
    2 GSK Investigational Site Amani, Tanga Tanzania

    Sponsors and Collaborators

    • GlaxoSmithKline

    Investigators

    • Study Director: GSK Clinical Trials, GlaxoSmithKline

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    Responsible Party:
    GlaxoSmithKline
    ClinicalTrials.gov Identifier:
    NCT00380393
    Other Study ID Numbers:
    • 106464
    First Posted:
    Sep 26, 2006
    Last Update Posted:
    Jul 3, 2018
    Last Verified:
    Nov 1, 2017
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Keywords provided by GlaxoSmithKline
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Period Title: Month 8 (Cross-sectional Visit)
    STARTED 447 447
    COMPLETED 398 407
    NOT COMPLETED 49 40
    Period Title: Month 8 (Cross-sectional Visit)
    STARTED 447 447
    COMPLETED 390 391
    NOT COMPLETED 57 56

    Baseline Characteristics

    Arm/Group Title GSK257049 Group Rabipur Group Total
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Total of all reporting groups
    Overall Participants 447 447 894
    Age (Months) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Months]
    11.4
    (3.6)
    11.4
    (3.4)
    11.4
    (3.5)
    Sex: Female, Male (Count of Participants)
    Female
    229
    51.2%
    222
    49.7%
    451
    50.4%
    Male
    218
    48.8%
    225
    50.3%
    443
    49.6%
    Race and Ethnicity Not Collected (Count of Participants)
    Count of Participants [Participants]
    0
    0%

    Outcome Measures

    1. Primary Outcome
    Title Frequency of First Case of Malaria Meeting the Primary Case Definition
    Description The first case of malaria meeting the primary case definition was defined as the first or only episodes with the presence of Plasmodium falciparum asexual parasitemia above (>) 2500 per microliter (μL) and the presence of fever greater than or equal to (≥) 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of first case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.
    Time Frame Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for efficacy, which included all evaluable for whom data concerning efficacy outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 415 420
    With estimate of VE adjusted for covariates
    244.77
    238.51
    With estimate of VE unadjusted for covariates
    249.23
    242.06
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine Efficacy
    Estimated Value 52.9
    Confidence Interval (2-Sided) 95%
    28.1 to 69.1
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was adjusted for site, age, bednet use, area and distance from health center.
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine Efficacy
    Estimated Value 55.0
    Confidence Interval (2-Sided) 95%
    31.4 to 70.4
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was not adjusted for site, age, bednet use, area or distance from health center.
    2. Secondary Outcome
    Title Frequency of First Case Malaria Meeting the Secondary Case Definition
    Description The first case of malaria meeting the secondary case definition was defined as the first or only episodes with the presence of P.falciparum asexual parasitemia > 0 per μL and the presence of fever ≥ 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of first case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.
    Time Frame Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for efficacy, which included all evaluable for whom data concerning efficacy outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 415 420
    With estimate of VE adjusted for covariates
    244.72
    237.21
    With estimate of VE unadjusted for covariates
    249.17
    240.76
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum.
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine efficacy
    Estimated Value 54.6
    Confidence Interval (2-Sided) 95%
    31.2 to 70.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was adjusted for site, age, bednet use, area and distance from health center.
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum.
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine efficacy
    Estimated Value 56.5
    Confidence Interval (2-Sided) 95%
    34.2 to 71.2
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was not adjusted for site, age, bednet use, area or distance from health center.
    3. Secondary Outcome
    Title Multiple Events of Malaria Meeting the Primary Case Definition
    Description Multiple episodes of malaria meeting the primary case definition was defined as episodes with the presence of P.falciparum asexual parasitemia > 25000 per μL and the presence of fever ≥ 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of primary case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.
    Time Frame Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for efficacy, which included all evaluable for whom data concerning efficacy outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 415 420
    With estimate of VE adjusted for covariates
    253.69
    255.36
    With estimate of VE unadjusted for covariates
    258.15
    259.61
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum.
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value 0.0003
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine efficacy
    Estimated Value 55.8
    Confidence Interval (2-Sided) 95%
    31.0 to 71.7
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was adjusted for site, age, bednet use, area and distance from health center.
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum.
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine efficacy
    Estimated Value 57.9
    Confidence Interval (2-Sided) 95%
    34.3 to 73.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was not adjusted for site, age, bednet use, area and distance from health center.
    4. Secondary Outcome
    Title Multiple Events of Malaria Meeting the Secondary Case Definition
    Description Multiple episodes of malaria meeting the secondary case definition was defined as episodes with the presence of P.falciparum asexual parasitemia > 0 per μL and the presence of fever ≥ 37.5°C by active case detection (ACD) or passive case detection (PCD). Number of secondary case of malaria were assessed through estimate of vaccine efficacy (VE) adjusted or unadjusted for covariates, and are expressed in PYAR= number of episodes/Person Years at Risk.
    Time Frame Assessed over average of 7.8 months post Dose 3 (range 4.3 to 10.3 months)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for efficacy, which included all evaluable for whom data concerning efficacy outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 415 420
    With estimate of VE adjusted for covariates
    253.62
    255.06
    With estimate of VE unadjusted for covariates
    258.07
    259.31
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum.
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine efficacy
    Estimated Value 58.0
    Confidence Interval (2-Sided) 95%
    34.8 to 73.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was adjusted for site, age, bednet use, area and distance from health center.
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection GSK257049 Group, Rabipur Group
    Comments Vaccine efficacy against P. falciparum.
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Vaccine efficacy
    Estimated Value 59.5
    Confidence Interval (2-Sided) 95%
    37.1 to 73.9
    Parameter Dispersion Type:
    Value:
    Estimation Comments Point estimate of VE was not adjusted for site, age, bednet use, area and distance from health center.
    5. Secondary Outcome
    Title Number of Subjects Positive for P. Falciparum Parasitaemia
    Description
    Time Frame At the Cross-Sectional Visit that took place for each participant at on average 7.8 months post Dose 3 (range 4.3 to 10.3 months)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for efficacy, which included all evaluable for whom data concerning efficacy outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 380 390
    Count of Participants [Participants]
    7
    1.6%
    11
    2.5%
    6. Secondary Outcome
    Title Geometric Mean Density of Asexual P. Falciparum Parasite
    Description Estimates of asexual P. falciparum parasite density were made at the investigator's sites according to laboratory standard operating procedures. Parasite density was presented as a geometric mean (GMean), expressed in parasite per microliters (μL).
    Time Frame At the Cross-Sectional Visit that took place for each participant at on average 7.8 months post Dose 3 (range 4.3 to 10.3 months)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for efficacy, which included all evaluable for whom data concerning efficacy outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 380 390
    Geometric Mean (95% Confidence Interval) [parasites/μL]
    1020
    3486
    7. Secondary Outcome
    Title Haemoglobin Values at Cross-Sectional Visit
    Description Haemoglobin values are expressed in grams per deciliter (g/dL).
    Time Frame At the Cross-Sectional Visit that took place for each participant at on average 7.8 months post Dose 3 (range 4.3 to 10.3 months)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for efficacy, which included all evaluable for whom data concerning efficacy outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 379 388
    Mean (Standard Deviation) [g/dL]
    10.32
    (1.01)
    10.37
    (1.03)
    8. Secondary Outcome
    Title Number of Subjects With Any and Grade 3 Solicited Local Symptoms
    Description Assessed solicited local symptoms were pain and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 swelling = swelling spreading beyond 20 millimeters (mm) of injection site.
    Time Frame During the 7-day (Days 0-6) post-vaccination period following each dose and across doses

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available and who had their symptom sheets filled in.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Any Pain, Dose 1
    51
    11.4%
    39
    8.7%
    Grade 3 Pain, Dose 1
    0
    0%
    0
    0%
    Swelling Pain, Dose 1
    20
    4.5%
    12
    2.7%
    Swelling 3 Pain, Dose 1
    0
    0%
    0
    0%
    Any Pain, Dose 2
    45
    10.1%
    38
    8.5%
    Grade 3 Pain, Dose 2
    0
    0%
    0
    0%
    Swelling Pain, Dose 2
    6
    1.3%
    3
    0.7%
    Swelling 3 Pain, Dose 2
    1
    0.2%
    0
    0%
    Any Pain, Dose 3
    76
    17%
    80
    17.9%
    Grade 3 Pain, Dose 3
    0
    0%
    0
    0%
    Swelling Pain, Dose 3
    8
    1.8%
    1
    0.2%
    Swelling 3 Pain, Dose 3
    2
    0.4%
    0
    0%
    Any Pain, Across doses
    143
    32%
    130
    29.1%
    Grade 3 Pain, Across doses
    0
    0%
    0
    0%
    Swelling Pain, Across doses
    30
    6.7%
    13
    2.9%
    Swelling 3 Pain, Across doses
    3
    0.7%
    0
    0%
    9. Secondary Outcome
    Title Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms
    Description Assessed solicited general symptoms were drowsiness, fever [defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)], irritability and loss of appetite. Any = occurrence of the symptom regardless of intensity grade. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever higher than (>) 39.0 °C. Related = symptom assessed by the investigator as related to the vaccination.
    Time Frame During the 7-day (Days 0-6) post-vaccination period following each dose and across doses

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available and who had their symptom sheets filled in.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Any Drowsiness, Dose 1
    44
    9.8%
    28
    6.3%
    Grade 3 Drowsiness, Dose 1
    0
    0%
    0
    0%
    Related Drowsiness, Dose 1
    32
    7.2%
    27
    6%
    Any Fever, Dose 1
    55
    12.3%
    138
    30.9%
    Grade 3 Fever, Dose 1
    1
    0.2%
    2
    0.4%
    Related Fever, Dose 1
    49
    11%
    133
    29.8%
    Any Irritability, Dose 1
    26
    5.8%
    12
    2.7%
    Grade 3 Irritability, Dose 1
    0
    0%
    0
    0%
    Related Irritability, Dose 1
    17
    3.8%
    8
    1.8%
    Any Loss of appetite, Dose 1
    34
    7.6%
    28
    6.3%
    Grade 3 Loss of appetite, Dose 1
    0
    0%
    1
    0.2%
    Related Loss of appetite, Dose 1
    14
    3.1%
    9
    2%
    Any Drowsiness, Dose 2
    22
    4.9%
    25
    5.6%
    Grade 3 Drowsiness, Dose 2
    0
    0%
    1
    0.2%
    Related Drowsiness, Dose 2
    22
    4.9%
    23
    5.1%
    Any Fever, Dose 2
    56
    12.5%
    159
    35.6%
    Grade 3 Fever, Dose 2
    3
    0.7%
    8
    1.8%
    Related Fever, Dose 2
    51
    11.4%
    156
    34.9%
    Any Irritability, Dose 2
    16
    3.6%
    7
    1.6%
    Grade 3 Irritability, Dose 2
    0
    0%
    0
    0%
    Related Irritability, Dose 2
    14
    3.1%
    7
    1.6%
    Any Loss of appetite, Dose 2
    24
    5.4%
    13
    2.9%
    Grade 3 Loss of appetite, Dose 2
    0
    0%
    1
    0.2%
    Related Loss of appetite, Dose 2
    12
    2.7%
    7
    1.6%
    Any Drowsiness, Dose 3
    15
    3.4%
    11
    2.5%
    Grade 3 Drowsiness, Dose 3
    0
    0%
    0
    0%
    Related Drowsiness, Dose 3
    15
    3.4%
    10
    2.2%
    Any Fever, Dose 3
    38
    8.5%
    112
    25.1%
    Grade 3 Fever, Dose 3
    1
    0.2%
    2
    0.4%
    Related Fever, Dose 3
    32
    7.2%
    107
    23.9%
    Any Irritability, Dose 3
    17
    3.8%
    2
    0.4%
    Grade 3 Irritability, Dose 3
    0
    0%
    0
    0%
    Related Irritability, Dose 3
    13
    2.9%
    1
    0.2%
    Any Loss of appetite, Dose 3
    6
    1.3%
    2
    0.4%
    Grade 3 Loss of appetite, Dose 3
    0
    0%
    0
    0%
    Related Loss of appetite, Dose 3
    3
    0.7%
    0
    0%
    Any Drowsiness, Across Doses
    66
    14.8%
    59
    13.2%
    Grade 3 Drowsiness, Across Doses
    0
    0%
    1
    0.2%
    Related Drowsiness, Across Doses
    55
    12.3%
    56
    12.5%
    Any Fever, Across Doses
    125
    28%
    268
    60%
    Grade 3 Fever, Across Doses
    5
    1.1%
    12
    2.7%
    Related Fever, Across Doses
    111
    24.8%
    262
    58.6%
    Any Irritability, Across Doses
    45
    10.1%
    19
    4.3%
    Grade 3 Irritability, Across Doses
    0
    0%
    0
    0%
    Related Irritability, Across Doses
    33
    7.4%
    14
    3.1%
    Any Loss of appetite, Across Doses
    54
    12.1%
    40
    8.9%
    Grade 3 Loss of appetite, Across Doses
    0
    0%
    2
    0.4%
    Related Loss of appetite, Across Doses
    28
    6.3%
    14
    3.1%
    10. Secondary Outcome
    Title Number of Subjects With Any Unsolicited Adverse Events (AEs)
    Description An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.
    Time Frame Within the 30-day (Days 0-29) post-vaccination follow-up period

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Count of Participants [Participants]
    349
    78.1%
    332
    74.3%
    11. Secondary Outcome
    Title Number of Subjects With Serious Adverse Events (SAEs)
    Description Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.
    Time Frame Throughout the study period (Day 0 - Month 14)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Count of Participants [Participants]
    51
    11.4%
    88
    19.7%
    12. Secondary Outcome
    Title Number of Subjects With Hemoglobin Values Outside Normal Ranges With Toxicity Grades
    Description Definitions for toxicity grading for hemoglobin were: Normal Hemoglobin = equal to or above (≥) 8.0 g/dL; Grade 1 Hemoglobin = under (<) 8.0 g/dL and above (>) 6.0 g/dL.; Grade 2 Hemoglobin = under (<) 6.0 g/dL.
    Time Frame At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Normal
    445
    99.6%
    446
    99.8%
    Grade 1
    1
    0.2%
    1
    0.2%
    Grade 2
    1
    0.2%
    0
    0%
    Missing
    0
    0%
    0
    0%
    Normal
    410
    91.7%
    413
    92.4%
    Grade 1
    7
    1.6%
    10
    2.2%
    Grade 2
    0
    0%
    0
    0%
    Missing
    30
    6.7%
    24
    5.4%
    Normal
    391
    87.5%
    397
    88.8%
    Grade 1
    6
    1.3%
    8
    1.8%
    Grade 2
    0
    0%
    0
    0%
    Missing
    50
    11.2%
    42
    9.4%
    13. Secondary Outcome
    Title Number of Subjects With White Blood Cell (WBC) Values Outside Normal Ranges With Toxicity Grades
    Description Definitions for toxicity grading for WBC were: Normal WBC = ≥ 4.0 x 10^3 cells per microliters (cells/μL) or < 17 x 10^3 cells /μL; Grade 1 WBC = 2.5 to 4.0 x 10^3 cells/μL.
    Time Frame At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Normal
    447
    100%
    447
    100%
    Grade 1
    0
    0%
    0
    0%
    Missing
    0
    0%
    0
    0%
    Normal
    416
    93.1%
    422
    94.4%
    Grade 1
    0
    0%
    1
    0.2%
    Missing
    31
    6.9%
    24
    5.4%
    Normal
    395
    88.4%
    405
    90.6%
    Grade 1
    0
    0%
    0
    0%
    Missing
    52
    11.6%
    42
    9.4%
    14. Secondary Outcome
    Title Number of Subjects With Platelet Values Outside Normal Ranges With Toxicity Grades
    Description Definitions for toxicity grading for platelets were: Normal Platelets = ≥ 75 x 10^3 cells/μL; Grade 1 Platelets = 50 to 74 x 10^3 /μL; Grade 2 Platelets = 25 to 49 x 10^3 /μL; Grade 3 Platelets = < 25 x 10^3 /μL.
    Time Frame At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Normal
    445
    99.6%
    447
    100%
    Grade 1
    1
    0.2%
    0
    0%
    Grade 2
    0
    0%
    0
    0%
    Grade 3
    0
    0%
    0
    0%
    Missing
    1
    0.2%
    0
    0%
    Normal
    414
    92.6%
    417
    93.3%
    Grade 1
    1
    0.2%
    0
    0%
    Grade 2
    2
    0.4%
    4
    0.9%
    Grade 3
    0
    0%
    1
    0.2%
    Missing
    30
    6.7%
    25
    5.6%
    Normal
    386
    86.4%
    396
    88.6%
    Grade 1
    4
    0.9%
    1
    0.2%
    Grade 2
    1
    0.2%
    0
    0%
    Grade 3
    0
    0%
    0
    0%
    Missing
    56
    12.5%
    50
    11.2%
    15. Secondary Outcome
    Title Number of Subjects With Alanine Aminotransferase (ALT) Values Outside Normal Ranges With Toxicity Grades
    Description Definition for toxicity grading for ALT were: Normal ALT = ≤ 60 international units per liter (IU/L); Grade 1 ALT = 1.1 to 2.5 x Upper Limit of Normal (ULN); Grade 2 ALT = 2.6 to 5.0 x ULN.
    Time Frame At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Normal
    446
    99.8%
    447
    100%
    Grade 1
    1
    0.2%
    0
    0%
    Grade 2
    0
    0%
    0
    0%
    Missing
    0
    0%
    0
    0%
    Normal
    413
    92.4%
    420
    94%
    Grade 1
    1
    0.2%
    2
    0.4%
    Grade 2
    0
    0%
    1
    0.2%
    Missing
    33
    7.4%
    24
    5.4%
    Normal
    393
    87.9%
    397
    88.8%
    Grade 1
    5
    1.1%
    8
    1.8%
    Grade 2
    0
    0%
    1
    0.2%
    Missing
    49
    11%
    41
    9.2%
    16. Secondary Outcome
    Title Number of Subjects With Creatinine Values Outside Normal Ranges With Toxicity Grades
    Description Definition for toxicity grading for creatinine were: Normal Creatinine = ≤ 60 micromols per liter (μmol/L); Grade 1 Creatinine = 1.1 to 1.5 x ULN; Grade 2 Creatinine = 1.6 to 3.0 x ULN.
    Time Frame At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the Total Vaccinated cohort, which included all vaccinated subjects for whom data were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 447 447
    Normal
    447
    100%
    447
    100%
    Grade 1
    0
    0%
    0
    0%
    Grade 2
    0
    0%
    0
    0%
    Missing
    0
    0%
    0
    0%
    Normal
    415
    92.8%
    422
    94.4%
    Grade 1
    0
    0%
    0
    0%
    Grade 2
    0
    0%
    0
    0%
    Missing
    32
    7.2%
    25
    5.6%
    Normal
    397
    88.8%
    405
    90.6%
    Grade 1
    1
    0.2%
    0
    0%
    Grade 2
    0
    0%
    1
    0.2%
    Missing
    49
    11%
    41
    9.2%
    17. Secondary Outcome
    Title Concentration of Antibodies Against the P. Falciparum Circumsporozoite (CS) Repeat Domain (Anti-CS)
    Description Concentrations are presented as geometric mean concentrations (GMCs), expressed in enzyme-linked immunosorbent assay (ELISA) units per milliliter (EU/mL).
    Time Frame At Day 0, Month 3 and at Cross-sectional Visit (took place between 7 and 13 months post Dose 1, mean: 10 months, standard deviation: 1.29)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects for whom data concerning immunogenicity outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 411 419
    At Day 0
    0.3
    0.3
    At Month 3
    539.6
    0.3
    At Cross-sectional Visit
    71.9
    0.3
    18. Secondary Outcome
    Title Concentration of Antibodies Against Hepatitis B Surface Antigen (Anti-HBs)
    Description Concentrations are presented as geometric mean concentrations (GMCs), expressed in enzyme-linked immunosorbent assay (ELISA) units per milliliter (EU/mL).
    Time Frame At Day 0 and at Month 3

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects for whom data concerning immunogenicity outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 410 419
    At Day 0
    155.4
    187.4
    At Month 3
    46776.3
    168.0
    19. Secondary Outcome
    Title Frequency of Cluster of Differentiation 4 (CD4+) CS-specific T-cells
    Description T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).
    Time Frame Prior to vaccination (Day 0)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects for whom data concerning immunogenicity outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 168 183
    CD4-IFN-γ
    15
    14
    CD4-IL-2
    111
    113
    CD4-TNF-α
    94
    92
    20. Secondary Outcome
    Title Frequency of Cluster of Differentiation 8 (CD8+) CS-specific T-cells
    Description T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).
    Time Frame Prior to vaccination (Day 0)

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects for whom data concerning immunogenicity outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 161 165
    CD8-IFN-γ
    1
    37
    CD8-IL-2
    219
    222
    CD8-TNF-α
    100
    82
    21. Secondary Outcome
    Title Frequency of Cluster of Differentiation 4 (CD4+) CS-specific T-cells
    Description T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).
    Time Frame At Month 3

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects for whom data concerning immunogenicity outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 156 169
    CD4-IFN-γ
    33
    13
    CD4-IL-2
    648
    139
    CD4-TNF-α
    416
    172
    22. Secondary Outcome
    Title Frequency of Cluster of Differentiation 8 (CD8+) CS-specific T-cells
    Description T-cells expressing at least one of the following cytokines are presented here: interleukin-2 [IL-2], tumor-necrosis factor-alpha [TNF-α] and interferon-gamma [IFN-γ]. Frequency is expressed in cells/million, as assessed by Intracellular Cytokine Assay (ICA).
    Time Frame At Month 3

    Outcome Measure Data

    Analysis Population Description
    The analyses were performed on the According-To-Protocol (ATP) cohort for immunogenicity, which included all evaluable subjects for whom data concerning immunogenicity outcome measures were available.
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    Measure Participants 143 156
    CD8-IFN-γ
    36
    32
    CD8-IL-2
    248
    219
    CD8-TNF-α
    201
    185

    Adverse Events

    Time Frame Solicited local/general symptoms: during the 7-day post-vaccination period (Days 0-6), Unsolicited AEs: during the 30-day post-vaccination period(Days 0-29), SAEs: during the entire study period (Day 0 - Month 14).
    Adverse Event Reporting Description
    Arm/Group Title GSK257049 Group Rabipur Group
    Arm/Group Description Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of GSK257049 vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60. Male or female subjects between 5 and 17 months of age at the time of first vaccination received 3 doses of Rabipur vaccine administered intramuscularly in the left deltoid muscle at Days 0, 30 and 60.
    All Cause Mortality
    GSK257049 Group Rabipur Group
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 1/447 (0.2%) 0/447 (0%)
    Serious Adverse Events
    GSK257049 Group Rabipur Group
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 51/447 (11.4%) 88/447 (19.7%)
    Blood and lymphatic system disorders
    Anaemia 5/447 (1.1%) 5 11/447 (2.5%) 12
    Cardiac disorders
    Mitral valve disease 1/447 (0.2%) 1 0/447 (0%) 0
    Congenital, familial and genetic disorders
    Sickle cell anaemia 0/447 (0%) 0 1/447 (0.2%) 1
    Sickle cell anaemia with crisis 0/447 (0%) 0 1/447 (0.2%) 1
    Ventricular septal defect 1/447 (0.2%) 1 0/447 (0%) 0
    Eye disorders
    Conjunctivitis 0/447 (0%) 0 1/447 (0.2%) 1
    Gastrointestinal disorders
    Rectal prolapse 0/447 (0%) 0 2/447 (0.4%) 2
    General disorders
    Pyrexia 1/447 (0.2%) 1 0/447 (0%) 0
    Infections and infestations
    Abscess 1/447 (0.2%) 1 0/447 (0%) 0
    Acarodermatitis 0/447 (0%) 0 1/447 (0.2%) 1
    Bronchiolitis 1/447 (0.2%) 1 3/447 (0.7%) 3
    Bronchitis 1/447 (0.2%) 1 1/447 (0.2%) 1
    Cellulitis 1/447 (0.2%) 1 1/447 (0.2%) 1
    Cerebral malaria 0/447 (0%) 0 3/447 (0.7%) 3
    Cholera 1/447 (0.2%) 1 2/447 (0.4%) 2
    Dysentery 2/447 (0.4%) 2 1/447 (0.2%) 1
    Escherichia sepsis 1/447 (0.2%) 1 0/447 (0%) 0
    Extrapulmonary tuberculosis 0/447 (0%) 0 1/447 (0.2%) 1
    Gastroenteritis 10/447 (2.2%) 10 22/447 (4.9%) 22
    Impetigo 0/447 (0%) 0 1/447 (0.2%) 1
    Lower respiratory tract infection 1/447 (0.2%) 1 1/447 (0.2%) 1
    Otitis media 0/447 (0%) 0 1/447 (0.2%) 1
    Otitis media acute 1/447 (0.2%) 1 0/447 (0%) 0
    Plasmodium falciparum infection 8/447 (1.8%) 8 25/447 (5.6%) 25
    Pneumococcal sepsis 0/447 (0%) 0 1/447 (0.2%) 1
    Pneumonia 16/447 (3.6%) 18 26/447 (5.8%) 28
    Rhinitis 0/447 (0%) 0 1/447 (0.2%) 1
    Schistosomiasis 1/447 (0.2%) 1 0/447 (0%) 0
    Skin infection 0/447 (0%) 0 1/447 (0.2%) 1
    Streptococcal sepsis 0/447 (0%) 0 1/447 (0.2%) 1
    Subcutaneous abscess 1/447 (0.2%) 1 1/447 (0.2%) 1
    Tinea capitis 1/447 (0.2%) 1 0/447 (0%) 0
    Tonsillitis 0/447 (0%) 0 1/447 (0.2%) 1
    Upper respiratory tract infection 8/447 (1.8%) 8 4/447 (0.9%) 5
    Urinary tract infection 3/447 (0.7%) 3 0/447 (0%) 0
    Varicella 1/447 (0.2%) 1 0/447 (0%) 0
    Injury, poisoning and procedural complications
    Burns first degree 0/447 (0%) 0 1/447 (0.2%) 1
    Drug toxicity 0/447 (0%) 0 1/447 (0.2%) 1
    Femur fracture 0/447 (0%) 0 1/447 (0.2%) 1
    Petroleum distillate poisoning 0/447 (0%) 0 2/447 (0.4%) 2
    Thermal burn 0/447 (0%) 0 2/447 (0.4%) 2
    Metabolism and nutrition disorders
    Kwashiorkor 0/447 (0%) 0 1/447 (0.2%) 2
    Malnutrition 1/447 (0.2%) 1 2/447 (0.4%) 2
    Marasmus 0/447 (0%) 0 2/447 (0.4%) 2
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Malignant mesenchymoma 0/447 (0%) 0 1/447 (0.2%) 1
    Nervous system disorders
    Convulsion 3/447 (0.7%) 3 2/447 (0.4%) 2
    Epilepsy 0/447 (0%) 0 1/447 (0.2%) 1
    Febrile convulsion 14/447 (3.1%) 17 20/447 (4.5%) 24
    Respiratory, thoracic and mediastinal disorders
    Asthma 2/447 (0.4%) 2 1/447 (0.2%) 1
    Bronchial hyperreactivity 0/447 (0%) 0 2/447 (0.4%) 2
    Foreign body aspiration 1/447 (0.2%) 1 0/447 (0%) 0
    Vascular disorders
    Shock 0/447 (0%) 0 1/447 (0.2%) 1
    Other (Not Including Serious) Adverse Events
    GSK257049 Group Rabipur Group
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 385/447 (86.1%) 396/447 (88.6%)
    General disorders
    Pain 143/447 (32%) 172 130/447 (29.1%) 157
    Pyrexia 125/447 (28%) 149 268/447 (60%) 409
    Swelling 30/447 (6.7%) 34 14/447 (3.1%) 17
    Infections and infestations
    Gastroenteritis 101/447 (22.6%) 120 81/447 (18.1%) 90
    Impetigo 27/447 (6%) 28 19/447 (4.3%) 20
    Lower respiratory tract infection 27/447 (6%) 27 28/447 (6.3%) 28
    Pneumonia 149/447 (33.3%) 195 141/447 (31.5%) 188
    Rhinitis 27/447 (6%) 28 18/447 (4%) 20
    Upper respiratory tract infection 81/447 (18.1%) 96 56/447 (12.5%) 59
    Metabolism and nutrition disorders
    Decreased appetite 54/447 (12.1%) 64 40/447 (8.9%) 43
    Nervous system disorders
    Somnolence 66/447 (14.8%) 81 59/447 (13.2%) 64
    Psychiatric disorders
    Irritability 45/447 (10.1%) 59 19/447 (4.3%) 21

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    GSK agreements may vary with individual investigators, but will not prohibit any investigator from publishing. GSK supports the publication of results from all centers of a multi-center trial but requests that reports based on single-site data not precede the primary publication of the entire clinical trial.

    Results Point of Contact

    Name/Title GSK Response Center
    Organization GlaxoSmithKline
    Phone 866-435-7343
    Email
    Responsible Party:
    GlaxoSmithKline
    ClinicalTrials.gov Identifier:
    NCT00380393
    Other Study ID Numbers:
    • 106464
    First Posted:
    Sep 26, 2006
    Last Update Posted:
    Jul 3, 2018
    Last Verified:
    Nov 1, 2017