GMFR, also called seroconversion factor (SCF), was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for GMFR was > 2.5.

The cut-off values for the humoral immune response in terms of vaccine H1N1 HI antibodies were equal to or above (≥) 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

The cut-off values for the humoral immune response in terms of vaccine H1N1 HI antibodies were equal to or above (≥) 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

Seroconversion (SCR) was defined as follows:

For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the point estimate for SCR was > 40%. The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SCR was > 40%.

Seroconversion (SCR) was defined as follows:

For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the point estimate for SCR was > 40%. The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SCR was > 40%.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

Seroconversion (SCR) was defined as follows:

For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the point estimate for SCR was > 40%. The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SCR was > 40%.

A seroprotected subject was defined as a vaccinated subject with a serum hemagglutination inhibition (HI) titer equal to or above (≥) 1:40. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the post-vaccination point estimate for SPR was > 70%.

The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SPR was > 70%.

A seroprotected subject was defined as a vaccinated subject with a serum HI titer equal to or above (≥) 1:40. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the post-vaccination point estimate for SPR was > 70%.

The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SPR was > 70%.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

A seroprotected subject was defined as a vaccinated subject with a serum HI titer equal to or above (≥) 1:40. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the post-vaccination point estimate for SPR was > 70%.

The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SPR was > 70%.

Seroconversion factor (SCF) was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for SCF was > 2.5.

SCF was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for SCF was > 2.5. Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

SCF was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for SCF was > 2.5.

The cut-off values for the humoral immune response in terms of vaccine neutralizing antibodies were equal to or above (≥) 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The cut-off values for the humoral immune response in terms of vaccine neutralizing antibodies were equal to or above (≥) 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The cut-off values for the humoral immune response in terms of vaccine neutralizing antibodies were equal to or above (≥) 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

VRR is defined as the number of vaccinees that have a 4-fold increase between pre- and post-vaccination titers. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

VRR is defined as the number of vaccinees that have a 4-fold increase between pre- and post-vaccination titers. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

VRR is defined as the number of vaccinees that have a 4-fold increase between pre- and post-vaccination titers. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain [child below (<) 6 years] = cried when limb was moved/spontaneously painful. Grade 3 pain [child equal to or above (≥) 6 years] = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 100 millimeters (mm) of injection site.

Assessed solicited general symptoms were drowsiness, irritability, loss of appetite, fever [defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)]. Any = occurrence of any general symptoms regardless of their intensity grade or their relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 loss of appetite = not eating at all. Grade 3 fever = fever ≥ 39.0 °C - ≤ 40.0°C. Related = symptom assessed by the investigator as causally related to the vaccination.

Assessed solicited general symptoms were fatigue, gastrointestinal, headache, joint pain at other location, muscle aches, shivering, sweating, and fever [defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)]. Any = occurrence of any general symptoms regardless of their intensity grade or their relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever ≥ 39.0°C - ≤ 40.0°C. Related symptom = symptom assessed by the investigator as causally related to the study vaccination.

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. Grade 3 AE = an AE which prevented normal, everyday activities. Related = AE assessed by the investigator as related to the vaccination.

MAEs were defined as events for which the subject received medical attention defined as hospitalization, an emergency room visit, or a visit to or from medical personnel (medical doctor) for any reason. Any MAE(s) = occurrence of any MAE(s) regardless of intensity grade or relation to vaccination. Analysis of intensity and relationship to vaccination of MAEs was not performed.

Potential immune-mediated diseases (pIMDs) are a subset of AEs that include autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have an autoimmune aetiology.

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.

Among biochemical parameters assessed were Alanine Amino Transferase (ALAT), Albumin, Alkaline Phosphatase (AP), Aspartate Amino Transferase (ASAT), Bilirubin, Bilirubin Conjugated/Direct, Cholesterol, Chloride, Creatinine, Creatine Phosphokinase (CK), Gamma-Glutamyl Transpeptidase (GGT), Potassium, Lactate dehydrogenase (LDH), Sodium, Protein, Urate/Uric acid and Blood Urea Nitrogen (BUN).

Unknown = value unknown for the specified time point and laboratory parameter; Below = value below the laboratory reference range defined for the specified time point and laboratory parameter; Within = value within the laboratory reference range defined for the specified time point and laboratory parameter; Above = value above the laboratory reference range defined for the specified time point and laboratory parameter.

Among haematological parameters assessed were Basophils (Baso), Eosinophils (EOS), Hematocrit (HEM), Hemoglobin (Hgb), Lymphocytes (LYM), Monocytes (MON), Neutrophils (NEU), Platelets (PLA), Red Blood Cells (RBC) and White Blood Cells (WBC).

Unknown = value unknown for the specified time point and laboratory parameter; Below = value below the laboratory reference range defined for the specified time point and laboratory parameter; Within = value within the laboratory reference range defined for the specified time point and laboratory parameter; Above = value above the laboratory reference range defined for the specified time point and laboratory parameter.

For additional information about this study please refer to the GSK Clinical Study Register

For additional information about this study please refer to the GSK Clinical Study Register

For additional information about this study please refer to the GSK Clinical Study Register

For additional information about this study please refer to the GSK Clinical Study Register

For additional information about this study please refer to the GSK Clinical Study Register

For additional information about this study please refer to the GSK Clinical Study Register

Healthy male or female Japanese children, between and including 10 to 17 years of age, who received two doses of GSK2340274A vaccine (formulation 2), administered intramuscularly into the deltoid region of the arm, according to 0, 21-day schedule.

Total of all reporting groups

Healthy male or female Japanese children, between and including 10 to 17 years of age, who received two doses of GSK2340274A vaccine (formulation 2), administered intramuscularly into the deltoid region of the arm, according to 0, 21-day schedule.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

Seroconversion (SCR) was defined as follows:

For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CBER criterion was fulfilled if the lower 97.5% confidence interval for SCR was > 40%.

The CHMP criterion was fulfilled if the point estimate for SCR was > 40%.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

A seroprotected subject was defined as a vaccinated subject with a serum hemagglutination inhibition (HI) titer equal to or above (≥) 1:40. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CBER Criterion was fulfilled if the lower 97.5% confidence interval for seroprotection (SPR) was > 70%.

The CHMP Criterion was fulfilled if the post-vaccination point estimate for SPR was > 70%.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

GMFR, also called seroconversion factor (SCF), was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for GMFR was > 2.5.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

The cut-off values for the humoral immune response in terms of vaccine H1N1 HI antibodies were equal to or above (≥) 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable for whom assay results for antibodies against A/California-like HA antigen for the blood sample taken 21 days after the first vaccination were available.

The cut-off values for the humoral immune response in terms of vaccine H1N1 HI antibodies were equal to or above (≥) 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

The cut-off values for the humoral immune response in terms of vaccine H1N1 HI antibodies were equal to or above (≥) 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 182 were available.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood sample taken 21 days after the first vaccination were available.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:10. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 182 were available.

Seroconversion (SCR) was defined as follows:

For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the point estimate for SCR was > 40%. The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SCR was > 40%.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood sample taken 21 days after the first vaccination were available.

Seroconversion (SCR) was defined as follows:

For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the point estimate for SCR was > 40%. The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SCR was > 40%.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

Seroconversion (SCR) was defined as follows:

For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the point estimate for SCR was > 40%. The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SCR was > 40%.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 182 were available.

A seroprotected subject was defined as a vaccinated subject with a serum hemagglutination inhibition (HI) titer equal to or above (≥) 1:40. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the post-vaccination point estimate for SPR was > 70%.

The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SPR was > 70%.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood sample taken 21 days after the first vaccination were available.

A seroprotected subject was defined as a vaccinated subject with a serum HI titer equal to or above (≥) 1:40. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the post-vaccination point estimate for SPR was > 70%.

The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SPR was > 70%.

Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

A seroprotected subject was defined as a vaccinated subject with a serum HI titer equal to or above (≥) 1:40. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The CHMP Criterion was fulfilled if the post-vaccination point estimate for SPR was > 70%.

The CBER Criterion was fulfilled if the lower 97.5% confidence interval for SPR was > 70%.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 182 were available.

Seroconversion factor (SCF) was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for SCF was > 2.5.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood sample taken 21 days after the first vaccination were available.

SCF was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for SCF was > 2.5. Note: Analyses based on 95% CI for 10-17 year age category at Day 42 were not performed.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

SCF was defined as the fold increase in serum HI GMTs post-vaccination compared to pre-vaccination. The Flu strain assessed was Flu A/CAL/7/09, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP guidance.

The CHMP Criterion was fulfilled if the point estimate for SCF was > 2.5.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against A/California-like HA antigen for the blood samples taken on Day 182 were available.

The cut-off values for the humoral immune response in terms of vaccine neutralizing antibodies were equal to or above (≥) 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood sample taken 21 days after the first vaccination were available.

The cut-off values for the humoral immune response in terms of vaccine neutralizing antibodies were equal to or above (≥) 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

The cut-off values for the humoral immune response in terms of vaccine neutralizing antibodies were equal to or above (≥) 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood samples taken on Day 182 were available.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood sample taken 21 days after the first vaccination were available.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was ≥ 1:8. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood samples taken on Day 182 were available.

VRR is defined as the number of vaccinees that have a 4-fold increase between pre- and post-vaccination titers. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 21, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood sample taken 21 days after the first vaccination were available.

VRR is defined as the number of vaccinees that have a 4-fold increase between pre- and post-vaccination titers. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood samples taken on Day 42 (21 days after the second vaccination) were available.

VRR is defined as the number of vaccinees that have a 4-fold increase between pre- and post-vaccination titers. The Flu strain assessed was Flu A/Neth/602/09 H1N1, in subjects aged between 6 months to 9 years and 10 to 17 years, following the CHMP and the CBER guidance.

The analysis was performed on the ATP cohort for immunogenicity at Day 182, which included all evaluable subjects for whom assay results for antibodies against Flu A/Neth/602/09 H1N1 antigen for the blood samples taken on Day 182 were available.

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain [child below (<) 6 years] = cried when limb was moved/spontaneously painful. Grade 3 pain [child equal to or above (≥) 6 years] = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 100 millimeters (mm) of injection site.

The analysis was performed on The Total Vaccinated Cohort which included all vaccinated subjects.

Assessed solicited general symptoms were drowsiness, irritability, loss of appetite, fever [defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)]. Any = occurrence of any general symptoms regardless of their intensity grade or their relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 loss of appetite = not eating at all. Grade 3 fever = fever ≥ 39.0 °C - ≤ 40.0°C. Related = symptom assessed by the investigator as causally related to the vaccination.

The analysis was performed on the Total Vaccinated Cohort which included all vaccinated subjects.

Assessed solicited general symptoms were fatigue, gastrointestinal, headache, joint pain at other location, muscle aches, shivering, sweating, and fever [defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)]. Any = occurrence of any general symptoms regardless of their intensity grade or their relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever ≥ 39.0°C - ≤ 40.0°C. Related symptom = symptom assessed by the investigator as causally related to the study vaccination.

The analysis was performed on the Total Vaccinated Cohort which included all vaccinated subjects.

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. Grade 3 AE = an AE which prevented normal, everyday activities. Related = AE assessed by the investigator as related to the vaccination.

The analysis was performed on the Total Vaccinated Cohort which included all vaccinated subjects.

MAEs were defined as events for which the subject received medical attention defined as hospitalization, an emergency room visit, or a visit to or from medical personnel (medical doctor) for any reason. Any MAE(s) = occurrence of any MAE(s) regardless of intensity grade or relation to vaccination. Analysis of intensity and relationship to vaccination of MAEs was not performed.

The analysis was performed on the Total Vaccinated Cohort which included all vaccinated subjects.

Potential immune-mediated diseases (pIMDs) are a subset of AEs that include autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have an autoimmune aetiology.

The analysis was performed on the Total Vaccinated Cohort which included all vaccinated subjects.

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.

The analysis was performed on the Total Vaccinated Cohort which included all vaccinated subjects.

Among biochemical parameters assessed were Alanine Amino Transferase (ALAT), Albumin, Alkaline Phosphatase (AP), Aspartate Amino Transferase (ASAT), Bilirubin, Bilirubin Conjugated/Direct, Cholesterol, Chloride, Creatinine, Creatine Phosphokinase (CK), Gamma-Glutamyl Transpeptidase (GGT), Potassium, Lactate dehydrogenase (LDH), Sodium, Protein, Urate/Uric acid and Blood Urea Nitrogen (BUN).

Unknown = value unknown for the specified time point and laboratory parameter; Below = value below the laboratory reference range defined for the specified time point and laboratory parameter; Within = value within the laboratory reference range defined for the specified time point and laboratory parameter; Above = value above the laboratory reference range defined for the specified time point and laboratory parameter.

The analysis was performed on the Total Vaccinated Cohort which included all vaccinated subjects.

Among haematological parameters assessed were Basophils (Baso), Eosinophils (EOS), Hematocrit (HEM), Hemoglobin (Hgb), Lymphocytes (LYM), Monocytes (MON), Neutrophils (NEU), Platelets (PLA), Red Blood Cells (RBC) and White Blood Cells (WBC).

Unknown = value unknown for the specified time point and laboratory parameter; Below = value below the laboratory reference range defined for the specified time point and laboratory parameter; Within = value within the laboratory reference range defined for the specified time point and laboratory parameter; Above = value above the laboratory reference range defined for the specified time point and laboratory parameter.

The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects.

Healthy male or female Japanese children, between and including 10 to 17 years of age, who received two doses of GSK2340274A vaccine (formulation 2), administered intramuscularly into the deltoid region of the arm, according to 0, 21-day schedule.