Immunogenicity and safety study of a GlaxoSmithKline Biologicals’ candidate influenza vaccine in healthy children
Trial overview
Titers for serum Hemagglutination Inhibition (HI) antibodies against the 3 Fluarix vaccine strains.
Timeframe: At Day 0 [PRE] and at 28 days post last vaccination (Day 28 or Day 56) [POST]
Titers for serum Hemagglutination Inhibition (HI) antibodies against 4 strains of influenza disease.
Timeframe: At Days 0 and 28.
Titers for serum Hemagglutination Inhibition (HI) antibodies against 4 strains of influenza disease.
Timeframe: At Days 0, 28 and Day 56
Number of seropositive subjects against 4 strains of influenza disease.
Timeframe: At Days 0 and 28
Number of seropositive subjects against 4 strains of influenza disease.
Timeframe: At Days 0, 28 and 56
Number of seroconverted subjects against 4 strains of influenza disease.
Timeframe: At Day 28
Number of seroconverted subjects against 4 strains of influenza disease.
Timeframe: At Days 28 and 56
Seroconversion factor for Hemagglutination Inhibition (HI) antibodies against 4 strains of influenza disease.
Timeframe: At Day 28
Seroconversion factor for Hemagglutination Inhibition (HI) antibodies against 4 strains of influenza disease.
Timeframe: At Days 28 and 56
Number of seroprotected subjects against 4 strains of influenza disease.
Timeframe: At Days 0 and 28
Number of seroprotected subjects against 4 strains of influenza disease.
Timeframe: At Days 0, 28 and 56
Number of subjects with any and grade 3 solicited local symptoms.
Timeframe: During the 7-day follow-up period (Days 0 to 6) after any vaccination
Number of subjects with any, grade 3 and related solicited general symptoms.
Timeframe: During the 7-day follow-up period (Days 0 to 6) after any vaccination
Number of subjects with any, grade 3 and related unsolicited adverse events (AEs).
Timeframe: During the 28-day follow-up period (Days 0 to 27) after vaccination
Number of subjects with any and related serious adverse events (SAEs).
Timeframe: From Day 0 to Day 180 (study conclusion)
Number of subjects with any adverse events of specific interest (AESIs).
Timeframe: From Day 0 to Day 180 (study conclusion)
- For all subjects:
- Subjects who the investigator believes that they and/or their Legally Acceptable Representative(s) (LAR) can and will comply with the requirements of the protocol.
- Use of any investigational or non-registered product other than the study vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period.
- History of hypersensitivity to any vaccine.
- Subjects who the investigator believes that they and/or their Legally Acceptable Representative(s) (LAR) can and will comply with the requirements of the protocol.
- Written informed consent obtained from the subject/from the LAR(s). For unprimed subjects:
- A male or female child aged 18 to 47 months at the time of the first vaccination.
- Children who did not have influenza vaccine in a previous season. For primed subjects from study NCT00764790:
- Children who received Fluarix™ in the 111751 study NCT00764790.
For all subjects:
- History of hypersensitivity to any vaccine.
- History of allergy or reactions likely to be exacerbated by any component of the vaccine.
- Planned administration/ administration of a vaccine not foreseen by the study protocol during the period starting one month before and ending 28 days after each dose of vaccine(s).
- Acute or chronic clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by medical history and physical examination.
- Acute disease at the time of enrolment.
- History of Guillain Barré syndrome within 6 weeks of receipt of prior inactivated influenza virus vaccine.
- Receipt of another seasonal influenza vaccine outside of this study, during current (2009-2010) flu season.
- Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination.
- Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccination Inhaled and topical steroids are allowed.
- Administration of immunoglobulins and/or blood products within the 3 month preceding the first dose of study vaccine or planned administration during the study period.
- 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.
Use of any investigational or non-registered product other than the study vaccine 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.