Study to evaluate the immunogenicity and safety of an investigational pandemic influenza vaccine in children
Trial overview
Number of seroconverted subjects in terms of H5N1 Hemagglutination Inhibition (HI) antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: At Day 192
Mean Geometric Change in terms of H5N1 HI antibodies against A/turkey/Turkey/01/2005 H5N1 virus strain
Timeframe: At Day 192
Number of seroprotected subjects in terms of H5N1 HI antibodies against A/turkey/Turkey/01/2005 H5N1 virus strain
Timeframe: At Day 192
Hemagglutination Inhibition (HI) antibody titers against the A/Indonesia/05/2005 H5N1 virus strain
Timeframe: At Day 0, Day 42, Day 182, Day 192 and Day 364
Hemagglutination Inhibition (HI) antibody titers against the A/turkey/Turkey/01/2005 H5N1 virus strain
Timeframe: At Day 0, Day 182, Day 192 and Day 364
Number of seropositive subjects in terms of H5N1 HI antibodies against A/Indonesia/05/2005
Timeframe: At Day 0, Day 42, Day 182, Day 192 and Day 364
Number of seropositive subjects in terms of H5N1 HI antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: At Day 0, Day 182, Day 192 and Day 364
Number of seroconverted subjects in terms of H5N1 HI antibodies against A/Indonesia/05/2005 H5N1 virus strain
Timeframe: At Day 42, Day 182, Day 192 and Day 364
Number of seroconverted subjects in terms of H5N1 HI antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: At Day 182 and Day 364
Number of seroprotected subjects in terms of H5N1 HI antibodies against A/Indonesia/05/2005 virus strain
Timeframe: At Day 0, Day 42, Day 182, Day 192 and Day 364
Number of seroprotected subjects in terms of H5N1 HI antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: Day 0, Day 182 and Day 364
Mean Geometric Change in terms of H5N1 HI antibodies against A/Indonesia/05/2005 H5N1 virus strain
Timeframe: At Day 42, Day 182, Day 192 and Day 364
Mean Geometric Change in terms of H5N1 HI antibodies against A/turkey/Turkey/01/2005 H5N1 virus strain
Timeframe: Day 182 and Day 364
Number of booster seroconverted subjects in terms of H5N1 HI antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: At Day 192 and Day 364
Booster factor in terms of neutralizing antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: At Day 192 and Day 364
Number of seropositive subjects in terms of serum neutralizing antibodies against A/Indonesia/05/2005 H5N1 virus strain
Timeframe: Day 0, Day 42, Day 182, Day 192 and Day 364
Number of seropositive subjects in terms of serum neutralizing antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: Day 0, Day 182, Day 192 and Day 364
Serum neutralizing antibody titers in terms of neutralizing antibodies against A/Indonesia/05/2005 H5N1 virus strain
Timeframe: Day 0, Day 42, Day 182, Day 192 and Day 364
Serum neutralizing antibody titers in terms of neutralizing antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: Day 0, Day 182, Day 192 and Day 364
Number of subjects with a vaccine response in terms of serum neutralizing antibodies against A/Indonesia/05/2005 H5N1 virus strain
Timeframe: At Day 42, Day 182, Day 192 and Day 364
Number of subjects with a vaccine response in terms of serum neutralizing antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: At Day 182, Day 192 and Day 364
Number of subjects with a booster vaccine response in terms of serum neutralizing antibodies against A/turkey/Turkey/1/2005 H5N1 virus strain
Timeframe: At Day 192 and Day 364
Number of subjects with any and Grade 3 solicited local symptoms
Timeframe: During the 7-day post-vaccination period following each dose and across doses (Day 0 - Day 7, Day 21 - Day 28, Day 182 - Day 189)
Number of subjects with any, Grade 3 and related solicited general symptoms
Timeframe: During the 7-day post-vaccination period following each dose and across doses (Day 0 - Day 7, Day 21 - Day 28, Day 182 - Day 189)
Number of subjects with medically-attended events (MAEs)
Timeframe: During the entire study period (from Day 0 to Day 364)
Number of subjects with potential immune-mediated disease (pIMDs)
Timeframe: During the entire study period (from day 0 to Day 364)
Number of subjects with unsolicited adverse events (AEs)
Timeframe: During a 21 day follow-up period after each vaccination (Day 0 - Day 21, Day 21 - Day 42, Day 182 - Day 203)
Number of subjects with unsolicited adverse events (AEs)
Timeframe: During an 84 day follow-up period after each vaccination (Day 0 - Day 84, Day 21 - Day 105, Day 182 - Day 266)
Number of subjects with serious adverse events (SAEs)
Timeframe: During the entire study period (from Day 0 to 364)
- Subjects who the investigator believes that parents/Legally Acceptable Representatives (LARs) can and will comply with the requirements of the protocol.
- Children, male or female between, and including, 6 and 35 months of age at the time of first study vaccination.
- Use of any investigational or non-registered product other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
- Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose.
- Children, male or female between, and including, 6 and 35 months of age at the time of first study vaccination.
- Written informed consent obtained from the parent(s)/LAR(s) of the subject.
- Healthy children as established by medical history and clinical examination before entering the study.
- Parent/LAR access to a consistent means of telephone contact, land line or mobile, but NOT a pay phone or other multiple-user device.
- Subjects who are likely to reside in the vicinity of the study centre for the duration of the study. In studies using the home-based model for vaccination and follow-up, subjects who are likely to remain in the vicinity of the area where they were recruited.
Subjects who the investigator believes that parents/Legally Acceptable Representatives (LARs) can and will comply with the requirements of the protocol.
- Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose.
- Planned administration of any vaccine 30 days prior and 21 days after any study vaccine administration.
- History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccines such as egg protein or thiomersal.
- Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.
- History of any neurological disorders or seizures.
- Acute disease at the time of enrolment.
- Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory tests.
- Administration of immunoglobulins and/or any blood products within the three months prior to the enrolment in this study, or planned administration during the study period.
- Any condition which, in the opinion of the investigator, renders the subject unfit for participation in the study.
- Child in care.
- Previous vaccination at any time with an H5N1 vaccine.
- Medical history of physician-confirmed infection with a H5N1 virus.
Use of any investigational or non-registered product other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
Trial location(s)
Study documents
If you wish to request for full study report, please contact - [email protected]
Results overview
Results posted on ClinicalTrials.gov
Plain language summaries
Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.