Primary and Booster Vaccination Study With Pneumococcal Vaccine GSK1024850A in Healthy Japanese Children

GlaxoSmithKline360 enrolled

Overview

This study will aim to evaluate the immunogenicity, safety and reactogenicity of GlaxoSmithKline Biologicals' 10-valent pneumococcal conjugate vaccine GSK1024850A when co-administered with Japanese DTPa vaccine as a 3-dose primary immunization course in healthy Japanese children at 3, 4 and 5 months of age and as a booster vaccination at 17-19 months of age.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Enrollment

360

Conditions

Infections, Streptococcal

Interventions

Pneumococcal vaccine GSK1024850ABIOLOGICAL

Intramuscular injection, 4 doses

DTPaBIOLOGICAL

Subcutaneous injection, 4 doses

Eligibility

Sex: ALLMin age: 90 DaysMax age: 118 DaysHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Subjects who the investigator/co-investigator believes that their parent(s)/Legally Acceptable Representative(s) (LAR(s)) can and will comply with the requirements of the protocol. * A male or female between, and including, 90 and 118 days of age (3 months) at the time of the first vaccination. * Written informed consent obtained from the parent(s)/LAR(s) of the subject. * Healthy subjects as established by medical history and clinical examination before entering into the study. * Born after a gestation period of 36 to 42 weeks inclusive. Exclusion Criteria: * Use of any investigational or non-registered product (drug or vaccine) other than the study vaccines within 30 days preceding the first dose of study vaccine(s), or planned use during the study period. * Chronic administration of immunosuppressants or other immune-modifying drugs since birth. * Planned administration/administration of a vaccine not foreseen by the study protocol during the period starting from 30 days before the first dose of study vaccine(s) and ending on the last study visit, with the exception of Haemophilus influenzae type b vaccine, Hepatitis B Vaccine, Bacille Calmette-Guérin vaccine, Oral Polio Vaccine, Japanese encephalitis, measles and rubella, varicella, mumps, and flu vaccines. * Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product (pharmaceutical product or device). * Administration of any pneumococcal vaccine since birth except for the DTPa group for whom vaccination with a licensed pneumococcal vaccine by catch-up schedule will be allowed only if the 2 vaccine doses are administered between Study Visit 4 and 5, i.e. from the second blood sampling timepoint (Visit 4) onwards and up to 7 days before the booster dose of the DTPa vaccine. * Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination (no laboratory testing required). * History of, or intercurrent diphtheria, tetanus, pertussis disease. * History of any reaction or hypersensitivity likely to be exacerbated by any component of the study vaccines. * Major congenital defects or serious chronic illness. * History of any seizures or progressive neurological disease. * Administration of immunoglobulins and/or any blood products since birth or planned administration during the study period. * Child in care. * Acute disease and/or fever at the time of enrolment.

Locations (16)

GSK Investigational Site

Aichi, Japan

GSK Investigational Site

Chiba, Japan

GSK Investigational Site

Hiroshima, Japan

Outcomes

Primary Outcomes

Concentrations of Antibodies Against Vaccine Pneumococcal Serotypes (Primary Immunization)

Concentrations were expressed as geometric mean concentrations (GMCs). Antibodies assessed for this outcome measure were those against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F (ANTI-1, -4, -5, -6B, -7F, -9V, -14, -18C, -19F and -23F). The seropositivity cut-off of the assay was an antibody concentration ≥ 0.05 microgram per milliliter (µg/mL).

Time frame: 1 month following primary immunization (at Month 3)

Secondary Outcomes

Concentrations of Antibodies Against Vaccine Pneumococcal Serotypes (Booster Immunization)

Antibodies assessed for this outcome measure were those against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F (ANTI-1, -4, -5, -6B, -7F, -9V, -14, -18C, -19F and -23F). Antibody concentrations were measured by 22F ELISA, expressed as GMCs, in μg/mL. The seropositivity cut-off of the assay was an antibody concentration ≥ 0.05 μg/mL. Antibody concentrations \< 0.05 μg/mL were given an arbitrary value of half the cut-off for the purpose of GMC calculation. Administration of catch-up pneumococcal vaccination with a licensed product other than Synflorix was allowed in the DTPa Group at least 7 days before DTPa vaccine booster dose. Thus, for this booster phase analysis, the DTPa Group was further split in DTPa + Prevenar Group and DTPa - no Prevenar Group.

Time frame: Prior to (PRE, at Month 14-16 ) and one month after booster (POST, at Month 15-17) immunization

Opsonophagocytic Titers Against Vaccine Pneumococcal Serotypes (Primary Immunization)

Time frame: 1 month following primary immunization (at Month 3)

Opsonophagocytic Titers Against Vaccine Pneumococcal Serotypes (Booster Immunization)

Data from ClinicalTrials.gov

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GSK Investigational Site

Hiroshima, Japan

GSK Investigational Site

Hokkaido, Japan

GSK Investigational Site

Kagawa, Japan

GSK Investigational Site

Kanagawa, Japan

GSK Investigational Site

Kanagawa, Japan

GSK Investigational Site

Kanagawa, Japan

GSK Investigational Site

Nagasaki, Japan

...and 6 more locations

Pneumococcal vaccine serotypes assessed were 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F and were calculated, expressed as geometric mean titers (GMTs). The seropositivity cut-off for the assay was ≥ 8. Antibody titers \< 8 were given an arbitrary value of half the cut-off for the purpose of GMT calculation. Administration of catch-up pneumococcal vaccination with a licensed product other than Synflorix was allowed in the DTPa Group at least 7 days before DTPa vaccine booster dose. Thus, for this booster phase analysis, the DTPa Group was further split in DTPa + Prevenar Group and DTPa - no Prevenar Group.

Time frame: Prior to (PRE, at Month 14-16) and one month after booster (POST, at Month 15-17) immunization

Concentrations of Antibodies Against Cross-reactive Pneumococcal Serotypes 6A and 19A (Primary Immunization)

Time frame: 1 month following primary immunization (at Month 3)

Concentrations of Antibodies Against Cross-reactive Pneumococcal Serotypes 6A and 19A (Booster Immunization)

Concentrations were given in microgram per millilitre (µg/mL) and were expressed in geometric mean antibody concentrations. Cross-reactive pneumococcal vaccine serotypes assessed were 6A and 19A. The seropositivity cut-off of the assay was an antibody concentration ≥ 0.05 µg/mL. Antibody concentrations \< 0.05 g/mL were given an arbitrary value of half the cut-off for the purpose of GMC calculation. Administration of catch-up pneumococcal vaccination with a licensed product other than Synflorix was allowed in the DTPa Group at least 7 days before DTPa vaccine booster dose. Thus, for this booster phase analysis, the DTPa Group was further split in DTPa + Prevenar Group and DTPa - no Prevenar Group.

Time frame: Prior to (PRE, at Month 14-16) and one month after booster (POST, at Month 15-17) immunization

Opsonophagocytic Titers Against Cross-reactive Pneumococcal Serotypes 6A and 19A (Primary Immunization)

Time frame: 1 month following primary immunization (at Month 3)

Opsonophagocytic Titers Against Cross-reactive Pneumococcal Serotypes 6A and 19A (Booster Immunization)

Cross-reactive pneumococcal vaccine serotypes assessed were 6A and 19A and were calculated, expressed as geometric mean titers (GMTs). The seropositivity cut-off for the assay was ≥ 8. Antibody titers \< 8 were given an arbitrary value of half the cut-off for the purpose of GMT calculation. Administration of catch-up pneumococcal vaccination with a licensed product other than Synflorix was allowed in the DTPa Group at least 7 days before DTPa vaccine booster dose. Thus, for this booster phase analysis, the DTPa Group was further split in DTPa + Prevenar Group and DTPa - no Prevenar Group.

Time frame: Prior to (PRE, at Month 14-16) and one month after booster (POST, at Month 15-17) immunization

Concentrations of Antibodies Against Protein D (PD) (Primary Immunization)

Anti-protein D (Anti-PD) antibody concentrations by Enzyme-Linked Immunosorbent Assay (ELISA) were calculated, expressed as geometric mean concentrations (GMCs) in ELISA unit per milli-liter (EL.U/mL) and tabulated. The seropositivity cut-off for the assay was ≥ 100 EL.U/mL. Antibody concentrations \< 100 EL.U/mL were given an arbitrary value of half the cut-off for the purpose of GMC calculation.

Time frame: 1 month following primary immunization (at Month 3)

Concentrations of Antibodies Against Protein D (PD) (Booster Immunization)

Time frame: Prior to (PRE, at Month 14-16) and one month after booster (POST, at Month 15-17) immunization

Concentrations of Antibodies Against Diphtheria Toxoid (DT) and Tetanus Toxoid (TT)(Primary Immunization)

Concentrations of antibodies are presented as geometric mean concentrations expressed as International units per millilitre (IU/mL). Seroprotection status, defined as Anti-DT or Anti-TT antibody concentration equal to or greater than 0.1 IU/mL.

Time frame: 1 month following primary immunization (at Month 3)

Concentrations of Antibodies Against Diphtheria Toxoid (DT) and Tetanus Toxoid (TT)(Booster Immunization)

Time frame: Prior to (PRE, at Month 14-16) and one month after booster (POST, at Month 15-17) immunization

Concentrations of Antibodies Against Pertussis (PT) and Filamentous Haemagglutinin (FHA)(Primary Immunization)

Concentrations of antibodies are presented as geometric mean concentrations expressed as Enzyme-Linked Immuno-Sorbent Assay (ELISA) units per millilitre (EL.U/mL). Seropositivity was defined as an antibody concentration equal to or greater than 5 EL.U/mL

Time frame: 1 month following primary immunization (at Month 3)

Concentrations of Antibodies Against Pertussis (PT) and Filamentous Haemagglutinin (FHA)(Booster Immunization)

Time frame: Prior to (PRE, at Month 14-16) and one month after booster (POST, at Month 15-17) immunization

Number of Subjects With Any and Grade 3 Solicited Local Symptoms After Primary Vaccination

Solicited local AEs assessed were pain, redness and swelling. Any = incidence of any local symptom regardless of intensity grade. Grade 3 pain = cried when limb was moved/spontaneously painful. Grade 3 redness/swelling = redness/swelling above 30 millimetre.

Time frame: During the 8-day (Days 0-7) after each primary vaccine dose

Number of Subjects With Any and Grade 3 Solicited Local Symptoms After Booster Vaccination

Time frame: During the 8-day (Days 0-7) period following booster vaccination

Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms After Primary Vaccination

General AEs = drowsiness, fever (axillary ≥ 37.5 degrees Celsius), irritabilityand loss of appetite, vomiting. Any= Incidence of any symptom regardless of intensity grade or relationship to vaccination. Grade 3 drowsiness = prevented normal activity. Grade 3 irritability = crying that could not be comforted/ prevented normal activity. Grade 3 loss of appetite = not eating at all. Grade 3 fever = \> 39.5°C Related = symptom assessed by the investigator as related to the vaccination.

Time frame: During the 8-day (Days 0-7) after each primary vaccine dose

Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms After Booster Vaccination

Solicited general AEs = drowsiness, irritability, loss of appetite and fever (axillary ≥ 37.5 degrees Celsius). Any= Incidence of any symptom regardless of intensity grade or relationship to vaccination. Grade 3: drowsiness = prevented normal activity. irritability = crying that could not be comforted/ prevented normal activity. loss of appetite = not eating at all. Fever = temperature \> 39.5°C Related = symptom assessed by the investigator as related to the vaccination.

Time frame: During the 8-day (Days 0-7) period following booster vaccination

Number of Subjects With Unsolicited AEs After Primary Vaccination

An unsolicited adverse event is any adverse event (i.e. any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with use of a medicinal product, whether or not considered related to the medicinal product) 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.

Time frame: Within the 31-day (Days 0-30) post-primary vaccination period, across doses

Number of Subjects With Unsolicited AEs After Booster Vaccination

Time frame: Within the 31-day (Days 0-30) post booster vaccination period

Number of Subjects With Serious Adverse Events (SAEs)

SAEs assessed include medical occurrences that results in death, are life threatening, require hospitalization or prolongation of hospitalization, results in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subjects.

Time frame: From study start at Month 0 up to study end at Month 15-17