Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/CAL/7/09. The reference seropositivity cut-off value was ≥ 1:10. The results for this assay were tabulated per age stratum.

A seropositive subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:10, that usually is accepted as indicating protection. The results for this assay were tabulated per age stratum.

Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/CAL/7/09. The reference seropositivity cut-off value was ≥ 1:10. The results for this assay were tabulated per age stratum.

Seroconversion was defined as: For initially seronegative subjects [antibody titer below (<) 10 post to vaccination], antibody titer greater than or equal to (≥) 40 after vaccination; For initially seropositive subjects (antibody titer ≥ 10 prior to vaccination), antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was A/California/7/2009 (H1N1)v-like influenza (Flu A/CAL/7/09). This outcome included only subjects who received one dose of the study product and the results were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age .

Seroconversion was defined as: For initially seronegative subjects [antibody titer below (<) 10 post to vaccination], antibody titer greater than or equal to (≥) 40 after vaccination; For initially seropositive subjects (antibody titer ≥ 10 prior to vaccination), antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was A/California/7/2009 (H1N1)v-like influenza (Flu A/CAL/7/09). The results for this assay were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age .

A seroprotected subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:40, that usually is accepted as indicating protection. This outcome included only subjects who received one dose of the study product and the results were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age .

A seroprotected subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:40, that usually is accepted as indicating protection. The results for this assay were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age.

GMFR was defined as the fold change in serum HI geometric mean titers (GMTs) post-vaccination compared to pre-vaccination. The flu strain assessed was Flu A/CAL/7/09. This outcome included only subjects who received one dose of the study product and the results were tabulated per age stratum. The CHMP criterion was fulfilled if the point estimated for GMFR was > 2.5 in subjects 18 to 60 years old or > 2 for subjects > 60 years of age.

GMFR was defined as the fold change in serum HI geometric mean titers (GMTs) post-vaccination compared to pre-vaccination. The flu strain assessed was Flu A/CAL/7/09. The results for this assay were tabulated per age stratum. The CHMP criterion was fulfilled if the point estimated for GMFR was > 2.5 in subjects 18 to 60 years old or > 2 for subjects > 60 years of age.

A seropositive subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:8, that usually is accepted as indicating protection. The Flu strain assessed was Flu A/Neth/602/09. The results for this assay were tabulated per age stratum.

Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/Neth/602/09. The reference seropositivity cut-off value was ≥ 1:8. The results for this assay were tabulated per age stratum.

Seroconversion was defined as: For initially seronegative subjects, antibody titer ≥ 1:8 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/Neth/602/09. The results were tabulated per age stratum.

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 100 millimeters (mm) of injection site. This outcome included all the subjects who received 1 dose of the study product and the assay results were tabulated per age stratum.

The number of days with any solicited local symptoms reported during the solicited post-vaccination period. This outcome included all the subjects who received 1 dose of the study product and the assay results were tabulated per age stratum.

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 100 millimeters (mm) of injection site. This outcome included only subjects who received two doses of the study product and the results were tabulated per age stratum.

The number of days with any solicited local symptoms reported during the solicited post-vaccination period. This outcome included only subjects who received 2 doses of the study product and the results were tabulated per age stratum. No subjects from GSK2340272A 2D (18-60y) Sub-Group presented any redness post dose 1.

Assessed solicited general symptoms were fatigue, 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 the symptom regardless of intensity grade. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = temperature ≥ 39.0 °C. Related = symptom assessed by the investigator as related to the vaccination. This outcome included all the subjects who received 1 dose of the study product and the assay results were tabulated per age stratum.

The number of days with any solicited general symptoms reported during the solicited post-vaccination period. This outcome included all the subjects who received 1 dose of the study product and the results were tabulated per age stratum.

Assessed solicited general symptoms were fatigue, headache, joint pain at other location, muscle aches, shivering, sweating and fever [defined as axillary temperature above (>) 37.5 degrees Celsius (°C)]. Any = occurrence of the symptom regardless of intensity grade. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = temperature ≥ 39.0 °C. Related = symptom assessed by the investigator as related to the vaccination. This outcome inlcuded only subjects who received two doses of the study product and the results were tabulated per age stratum.

The number of days with any solicited general symptoms reported during the solicited post-vaccination period. This outcome included only subjects who received two doses of the study product and the results were tabulated per age stratum. No subjects from GSK2340272A 2D (>60y) Sub-Group reported any temperature.

An AESI was defined as an AE including autoimmune diseases and other mediated inflammatory disorders and assessed by the investigator as specific to the treatment administration. The results were tabulated per age stratum.

Among biochemical and haematological parameters assessed were alanine aminotransferase [ALT], alkaline phosphatase [AP], aspartate aminotransferase [AST], total bilirubin [BIL], creatinine [CRE], blood urea nitrogen [BUN]. Levels of haematological/biochemical parameters assessed with respect to normal laboratory values were - unknown, below, within and above in subjects aged 18-60 years and > 60 years old.

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. This outcome included all the subjects who received 1 dose of the study product and the results were tabulated per age stratum.

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 results were tabulated per age stratum.

SAEs assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity. The results were tabulated per age stratum.

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

Total of all reporting groups

A seroprotected subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:40, that usually is accepted as indicating protection. This outcome included only subjects who received two doses of the study product and the results were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age .

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom 2 doses were administrated and the assay results were available for antibodies against H1N1 antigen for blood sample taken 21 or 42 days after the first vaccine dose and 21 days after the second vaccine dose.

GMFR was defined as the fold change in serum HI geometric mean titers (GMTs) post-vaccination compared to pre-vaccination. The flu strain assessed was Flu A/CAL/7/09. This outcome included only subjects who received two doses of the study product and results were tabulated per age stratum. The CHMP criterion was fulfilled if the point estimated for GMFR was > 2.5 in subjects 18 to 60 years old or > 2 for subjects > 60 years of age.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom 2 doses were administrated and the assay results were available for antibodies against H1N1 antigen for blood sample taken 21 or 42 days after the first vaccine dose and 21 days after the second vaccine dose.

A seropositive subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:10, that usually is accepted as indicating protection. The results for this assay were tabulated per age stratum.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom 1 dose and 2 doses were administered and the assay results were available for antibodies against H1N1 antigen for blood sample taken 21 or 42 days after the first vaccine dose and 21 days after the second vaccine dose.

Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/CAL/7/09. The reference seropositivity cut-off value was ≥ 1:10. The results for this assay were tabulated per age stratum.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom 1 dose and 2 doses were administrated and the assay results were available for antibodies against H1N1 antigen for blood sample taken 21 or 42 days after the first vaccine dose and 21 days after the second vaccine dose.

A seropositive subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:10, that usually is accepted as indicating protection. The results for this assay were tabulated per age stratum.

The analysis was performed on the ATP cohort for persistence at Day 182 and 364, which included all evaluable subjects for whom data concerning immunogenicity outcome measure and assay results for antibodies against the study vaccine antigen component at Day 182 and 364 were available.

Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/CAL/7/09. The reference seropositivity cut-off value was ≥ 1:10. The results for this assay were tabulated per age stratum.

The analysis was performed on the ATP cohort for persistence at Day 182 and 364, which included all evaluable subjects for whom data concerning immunogenicity outcome measure and whom assay results for antibodies against the study vaccine antigen component at Day 182 and 364 were available.

Seroconversion was defined as: For initially seronegative subjects [antibody titer below (<) 10 post to vaccination], antibody titer greater than or equal to (≥) 40 after vaccination; For initially seropositive subjects (antibody titer ≥ 10 prior to vaccination), antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was A/California/7/2009 (H1N1)v-like influenza (Flu A/CAL/7/09). This outcome included only subjects who received one dose of the study product and the results were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age .

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom 1 dose was administrated and the assay results were available for antibodies against H1N1 antigen for blood sample taken 21 days and 42 days after the first vaccine dose.

Seroconversion was defined as: For initially seronegative subjects [antibody titer below (<) 10 post to vaccination], antibody titer greater than or equal to (≥) 40 after vaccination; For initially seropositive subjects (antibody titer ≥ 10 prior to vaccination), antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was A/California/7/2009 (H1N1)v-like influenza (Flu A/CAL/7/09). The results for this assay were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age .

The analysis was performed on the ATP cohort for persistence at Day 182 and 364, which included all evaluable subjects for whom data concerning immunogenicity outcome measure and assay results for antibodies against the study vaccine antigen component at Day 182 and 364 were available.

A seroprotected subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:40, that usually is accepted as indicating protection. This outcome included only subjects who received one dose of the study product and the results were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age .

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom 1 dose was administrated and the assay results were available for antibodies against H1N1 antigen for blood sample taken 21 and 42 days after the first vaccine dose.

A seroprotected subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:40, that usually is accepted as indicating protection. The results for this assay were tabulated per age stratum. The CHMP criterion was fulfilled if the post-vaccination point estimate for SPR was > 70% in subjects 18 to 60 of age or > 60% for subjects above 60 years of age.

The analysis was performed on the ATP cohort for persistence at Day 182 and 364, which included all evaluable subjects for whom data concerning immunogenicity outcome measure and assay results for antibodies against the study vaccine antigen component at Day 182 and 364 were available.

GMFR was defined as the fold change in serum HI geometric mean titers (GMTs) post-vaccination compared to pre-vaccination. The flu strain assessed was Flu A/CAL/7/09. This outcome included only subjects who received one dose of the study product and the results were tabulated per age stratum. The CHMP criterion was fulfilled if the point estimated for GMFR was > 2.5 in subjects 18 to 60 years old or > 2 for subjects > 60 years of age.

The analysis was performed on the ATP cohort for immunogenicity at Day 42, which included all evaluable subjects for whom 1 dose was administrated and the assay results were available for antibodies against H1N1 antigen for blood sample taken 21 and 42 days after the first vaccine dose.

GMFR was defined as the fold change in serum HI geometric mean titers (GMTs) post-vaccination compared to pre-vaccination. The flu strain assessed was Flu A/CAL/7/09. The results for this assay were tabulated per age stratum. The CHMP criterion was fulfilled if the point estimated for GMFR was > 2.5 in subjects 18 to 60 years old or > 2 for subjects > 60 years of age.

The analysis was performed on the ATP cohort for persistence at Day 182 and 364, which included all evaluable subjects for whom data concerning immunogenicity outcome measure and assay results for antibodies against the study vaccine antigen component at Day 182 and 364 were available.

A seropositive subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:8, that usually is accepted as indicating protection. The Flu strain assessed was Flu A/Neth/602/09. The results for this assay were tabulated per age stratum.

The analysis was performed on the ATP cohort for persistence at Day 182, which included all evaluable subjects for whom data concerning immunogenicity outcome measure and assay results for antibodies against the study vaccine antigen component at Day 182 were available.

Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/Neth/602/09. The reference seropositivity cut-off value was ≥ 1:8. The results for this assay were tabulated per age stratum.

The analysis was performed on the ATP cohort for persistence at Day 182, which included all evaluable subjects for whom data concerning immunogenicity outcome measures and assay results for antibodies against the study vaccine antigen component at Day 182 were available.

Seroconversion was defined as: For initially seronegative subjects, antibody titer ≥ 1:8 after vaccination; For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/Neth/602/09. The results were tabulated per age stratum.

The analysis was performed on the ATP cohort for persistence at Day 182, which included all evaluable subjects for whom data concerning immunogenicity outcome measures and assay results for antibodies against the study vaccine antigen component at 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 = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 100 millimeters (mm) of injection site. This outcome included all the subjects who received 1 dose of the study product and the assay results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects who filled in their symptom sheets. The results were tabulated for the pooled groups and per age stratum, because until Day 21 no distinction was made in terms of study groups, since all subjects had received 1 dose of GSK2340272A vaccine.

The number of days with any solicited local symptoms reported during the solicited post-vaccination period. This outcome included all the subjects who received 1 dose of the study product and the assay results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects who filled in their symptom sheets. The results were tabulated for the pooled groups and per age stratum, because until Day 21 no distinction was made in terms of study groups, since all subjects had received 1 dose of GSK2340272A vaccine.

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 100 millimeters (mm) of injection site. This outcome included only subjects who received two doses of the study product and the results were tabulated per age stratum.

The analysis was performed on a subset of subjects from the Total Vaccinated cohort (TVc), which included all subjects who received 2 doses of GSK2340272A vaccine and who filled in their symptom sheets.

The number of days with any solicited local symptoms reported during the solicited post-vaccination period. This outcome included only subjects who received 2 doses of the study product and the results were tabulated per age stratum. No subjects from GSK2340272A 2D (18-60y) Sub-Group presented any redness post dose 1.

The analysis was performed on a subset of subjects from the Total Vaccinated cohort (TVc), which included all subjects who received 2 doses of GSK2340272A and who filled in their symptom sheets.

Assessed solicited general symptoms were fatigue, 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 the symptom regardless of intensity grade. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = temperature ≥ 39.0 °C. Related = symptom assessed by the investigator as related to the vaccination. This outcome included all the subjects who received 1 dose of the study product and the assay results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects who filled in their symptom sheets. The results were tabulated for the pooled groups and per age stratum, because until Day 21 no distinction was made in terms of study groups, since all subjects had received 1 dose of GSK2340272A vaccine.

The number of days with any solicited general symptoms reported during the solicited post-vaccination period. This outcome included all the subjects who received 1 dose of the study product and the results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects who filled in their symptom sheets. The results were tabulated for the pooled groups and per age stratum, because until Day 21 no distinction was made in terms of study groups, since all subjects had received 1 dose of GSK2340272A vaccine.

Assessed solicited general symptoms were fatigue, headache, joint pain at other location, muscle aches, shivering, sweating and fever [defined as axillary temperature above (>) 37.5 degrees Celsius (°C)]. Any = occurrence of the symptom regardless of intensity grade. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = temperature ≥ 39.0 °C. Related = symptom assessed by the investigator as related to the vaccination. This outcome inlcuded only subjects who received two doses of the study product and the results were tabulated per age stratum.

The analysis was performed on a subset of subjects from the Total Vaccinated cohort (TVc), which included all subjects who received 2 doses of GSK2340272A vaccine and who filled in their symptom sheets.

The number of days with any solicited general symptoms reported during the solicited post-vaccination period. This outcome included only subjects who received two doses of the study product and the results were tabulated per age stratum. No subjects from GSK2340272A 2D (>60y) Sub-Group reported any temperature.

The analysis was performed on a subset of subjects from the Total Vaccinated cohort (TVc), which included all subjects who received 2 doses of GSK2340272A vaccine and who filled in their symptom sheets.

An AESI was defined as an AE including autoimmune diseases and other mediated inflammatory disorders and assessed by the investigator as specific to the treatment administration. The results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects.

Among biochemical and haematological parameters assessed were alanine aminotransferase [ALT], alkaline phosphatase [AP], aspartate aminotransferase [AST], total bilirubin [BIL], creatinine [CRE], blood urea nitrogen [BUN]. Levels of haematological/biochemical parameters assessed with respect to normal laboratory values were - unknown, below, within and above in subjects aged 18-60 years and > 60 years old.

The analysis was performed on the Total Vaccinated cohort (TVc), 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. This outcome included all the subjects who received 1 dose of the study product and the results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects. The results were tabulated for the pooled groups and per age stratum, because until Day 21 no distinction was made in terms of study groups, since all subjects had received 1 dose of GSK2340272A vaccine.

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 results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects.

SAEs assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity. The results were tabulated per age stratum.

The analysis was performed on the Total Vaccinated cohort (TVc), which included all vaccinated subjects.

Healthy male or female adults, aged 18 to 60 years (18-60y) and above (>60y), who received two doses (2D) of GSK2340272A vaccine, one administered intramuscularly in the deltoid region of the non-dominant arm at Day 0 and the other one, administered intramuscularly in the deltoid region of the dominant arm at Day 21.