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Evaluate Safety & Immunogenicity of GSK Bio's Influenza Vaccine GSK576389A After Repeated Vaccination in Elderly Adults

Observer Blind Study to Evaluate Safety, Reactogenicity and Immunogenicity of GSK Biologicals Influenza Vaccine GSK576389A Administered to Adults Over 65 Years Previously Vaccinated With the Same Vaccine, Compared to Fluarix™

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00529516
Enrollment
1252
Registered
2007-09-14
Start date
2007-10-15
Completion date
2008-06-04
Last updated
2018-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Influenza

Keywords

Fluarix, GSK Bio's influenza vaccine GSK576389A, Influenza infection

Brief summary

Since influenza vaccines are administered every year because of the frequent change in their antigenic composition, the safety and immunogenicity profile of GSK Biologicals' influenza vaccine GSK576389A will be re-evaluated after repeated vaccine administration. In this observer blind study, the subjects previously enrolled in study 104888 (NCT00377585) will receive a dose with the 2007-2008 season's formulations of Fluarix or GSK576389A. Only subjects who were previously enrolled in study 104888 (NCT00377585) are eligible for participation in this study.

Detailed description

This study involves 2 age groups (based on primary study): Subjects enrolled in the \>= 65 yrs age group in the primary study. Subjects enrolled in the 18-40 yrs age group in the primary study. The study will be conducted in an open manner for this age group. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Interventions

BIOLOGICALFluarix

Single dose, Intramuscular injection

BIOLOGICALGSK Biologicals Influenza Vaccine GSK576389A

Single dose, Intramuscular injection

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Subjects who the investigator believes can and will comply with the requirements of the protocol should be enrolled in the study. * Written informed consent obtained from the subject. * Free of an acute aggravation of the health status as established by clinical evaluation before entering into the study. * If the subject is female, she must be of non-childbearing potential or if she is of childbearing potential, she must practice adequate contraception for 30 days prior to vaccination, have a negative pregnancy test and continue such precautions for 2 months after completion of the vaccination series. * Male or female subjects who participated in the 104888 study (NCT00377585) and were enrolled in the \>= 65 years age group or in the 18-40 years age group .

Exclusion criteria

* Administration of other licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to enrolment in this study. * Planned administration of a vaccine not foreseen by the study protocol up to 30 days after vaccination * Planned administration of an influenza vaccine other than the study vaccines during the entire study period * Any vaccination against influenza since January 2007 * Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose. * Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination (no laboratory testing required). * History of hypersensitivity to a previous dose of influenza vaccine * History of allergy or reactions likely to be exacerbated by any component of the vaccine(s) * Acute (active) clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or pre-existing laboratory screening tests * Acute disease at the time of enrolment * Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period * Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days prior to vaccination, or planned use during the study period * Any medical conditions in which IM injections are contraindicated * Pregnant or lactating female, or planning to become pregnant or to discontinue contraceptive precautions.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)During a 7-day follow-up period after vaccinationSolicited local AEs assessed include ecchymosis, pain, redness and swelling. Any: any symptom regardless of intensity grade. Grade 3 pain: considerable pain at rest, which prevented normal everyday activities. Grade 3 ecchymosis, redness and swelling: more than 100 millimeter.
Duration of Solicited Local Adverse EventsDuring a 7-day follow-up period after vaccinationDuration was expressed as the median number of days the symptom was experienced.
Number of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)During a 7-day follow-up period after vaccinationSolicited general AEs assessed include arthralgia, fatigue, headache, myalgia, nausea, shivering and fever. Any: any symptom regardless of intensity grade; any fever: oral temperature greater than or equal to 38 degrees Celsius (°C). Grade 3: symptoms that prevented normal activity ; Grade 3 fever: oral temperature greater than 40°C. Related: symptom assessed by the investigator as causally related to the study vaccination.
Duration of Solicited General Adverse EventsDuring a 7-day follow-up period after vaccinationDuration was expressed as the median number of days the symptom was experienced.
Number of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)During a 21-day follow-up period after vaccinationUnsolicited AE covers any AE 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: any AE regardless of intensity or relationship to vaccination. Grade 3: AE that prevented normal activity. Related: AE considered by the investigator to be causally related to the study vaccination.

Secondary

MeasureTime frameDescription
Number of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsAt Days 0 and 21A seroprotected subject was defined as a subject with a serum HI titer greater than or equal to1:40 that is usually accepted as indicating protection. The three vaccine strains assessed included A/Solomon Islands, A/Wisconsin and B/Malaysia.
Number of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune MarkersAt Day 0 and 21Results are presented as the geometric mean number of immune response marker-positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).
Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of CD40L-positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).
Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of IFN-γ -positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2) and tumor necrosis factor alpha (TNF-α).
Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of IFN-γ -positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).
Number of Subjects With Any and Related Serious Adverse Events (SAEs)During the vaccination phase of the study (Day 0 to Day 20) and during the long term follow-up phase of the study (Day 21 to Day 179)SAEs assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization, result in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subject.
Number of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune MarkersAt Day 0 and 21Results are presented as the geometric mean number of immune response marker-positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).
Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of CD40L-positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).
Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of IFN-γ -positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2) and tumor necrosis factor alpha (TNF-α).
Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of IFN-γ -positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).
Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of IFN-γ -positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L) and interferon gamma (IFN-γ).
Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune MarkerAt Day 0 and 21Results are presented as the geometric mean number of IFN-γ -positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L) and interferon gamma (IFN-γ).
Number of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)During the vaccination phase of the study (Day 0 to Day 20) and during the long term follow-up phase of the study (Day 21 to Day 179)Medically significant conditions assessed include conditions prompting emergency room visits, hospitalizations or physician visits.
Serum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsAt Days 0 and 21Titers were expressed as Geometric Mean Titers. The three vaccine strains assessed included A/Solomon Islands, A/Wisconsin and B/Malaysia.
Number of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsAt Day 21A seroconverted subject was defined as a subject who had either a pre-vaccination titer below1:10 and a post-vaccination titer greater than or equal to1:40 or a pre-vaccination titer greater than or equal to1:10 and at least a four-fold increase in post-vaccination titer. The three vaccine strains assessed included A/Solomon Islands, A/Wisconsin and B/Malaysia.
Seroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsAt Day 21Seroconversion factor was defined as the fold increase in serum HI Geometric Mean Titers post-vaccination compared to Day 0.

Countries

Belgium, Germany, Norway, United States

Participant flow

Participants by arm

ArmCount
FluAS25 Group
Subjects aged 65 years and above, who had received one dose of GlaxoSmithKline (GSK) Biologicals' AS25 adjuvanted influenza vaccine (GSK576389A) in study NCT00377585, received one dose of GlaxoSmithKline (GSK) Biologicals' AS25 adjuvanted influenza vaccine (GSK576389A) in the current study.
475
Fluarix ≥ 65 Years Age Group
Subjects aged 65 years and above, who had received one dose of Fluarix™ vaccine in study NCT00377585, received one dose of Fluarix™ vaccine in the current study.
488
Fluarix 18-40 Years Age Group
Subjects aged between 18 and 40 years, who had received one dose of Fluarix™ vaccine in study NCT00377585, received one dose of Fluarix™ vaccine in the current study.
289
Total1,252

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event210
Overall StudyLost to Follow-up001
Overall StudyWithdrawal by Subject110

Baseline characteristics

CharacteristicFluAS25 GroupFluarix ≥ 65 Years Age GroupFluarix 18-40 Years Age GroupTotal
Age, Continuous73.8 Years
STANDARD_DEVIATION 5.5
73.7 Years
STANDARD_DEVIATION 5.8
30.9 Years
STANDARD_DEVIATION 6.64
63.86 Years
STANDARD_DEVIATION 19
Sex: Female, Male
Female
248 Participants253 Participants167 Participants668 Participants
Sex: Female, Male
Male
227 Participants235 Participants122 Participants584 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
346 / 475162 / 488200 / 289
serious
Total, serious adverse events
23 / 47527 / 4884 / 289

Outcome results

Primary

Duration of Solicited General Adverse Events

Duration was expressed as the median number of days the symptom was experienced.

Time frame: During a 7-day follow-up period after vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, on subjects that experienced the specific symptom.

ArmMeasureGroupValue (MEDIAN)
FluAS25 GroupDuration of Solicited General Adverse EventsFever (N= 17; 0; 1)1.0 Days
FluAS25 GroupDuration of Solicited General Adverse EventsNausea (N= 35; 23; 17)1.0 Days
FluAS25 GroupDuration of Solicited General Adverse EventsMyalgia (N= 132; 51; 70)2.0 Days
FluAS25 GroupDuration of Solicited General Adverse EventsFatigue (N= 131; 46; 71)2.0 Days
FluAS25 GroupDuration of Solicited General Adverse EventsArthralgia (N= 80; 34; 23)2.0 Days
FluAS25 GroupDuration of Solicited General Adverse EventsShivering (N= 95; 31; 31)1.0 Days
FluAS25 GroupDuration of Solicited General Adverse EventsHeadache (N= 102; 49; 54)1.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited General Adverse EventsArthralgia (N= 80; 34; 23)3.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited General Adverse EventsFatigue (N= 131; 46; 71)2.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited General Adverse EventsHeadache (N= 102; 49; 54)1.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited General Adverse EventsMyalgia (N= 132; 51; 70)2.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited General Adverse EventsNausea (N= 35; 23; 17)1.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited General Adverse EventsShivering (N= 95; 31; 31)2.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited General Adverse EventsFever (N= 17; 0; 1)NA Days
Fluarix 18-40 Years Age GroupDuration of Solicited General Adverse EventsNausea (N= 35; 23; 17)2.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited General Adverse EventsFatigue (N= 131; 46; 71)2.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited General Adverse EventsFever (N= 17; 0; 1)1.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited General Adverse EventsShivering (N= 95; 31; 31)1.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited General Adverse EventsMyalgia (N= 132; 51; 70)2.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited General Adverse EventsHeadache (N= 102; 49; 54)2.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited General Adverse EventsArthralgia (N= 80; 34; 23)2.0 Days
Primary

Duration of Solicited Local Adverse Events

Duration was expressed as the median number of days the symptom was experienced.

Time frame: During a 7-day follow-up period after vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, on subjects that reported the specific symptom.

ArmMeasureGroupValue (MEDIAN)
FluAS25 GroupDuration of Solicited Local Adverse EventsEcchymosis (N= 7; 7; 2)3.0 Days
FluAS25 GroupDuration of Solicited Local Adverse EventsPain (N= 271; 76; 170)2.0 Days
FluAS25 GroupDuration of Solicited Local Adverse EventsRedness (N= 111; 14; 16)3.0 Days
FluAS25 GroupDuration of Solicited Local Adverse EventsSwelling (N= 44; 8; 5)3.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited Local Adverse EventsSwelling (N= 44; 8; 5)1.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited Local Adverse EventsEcchymosis (N= 7; 7; 2)2.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited Local Adverse EventsRedness (N= 111; 14; 16)2.0 Days
Fluarix ≥ 65 Years Age GroupDuration of Solicited Local Adverse EventsPain (N= 271; 76; 170)2.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited Local Adverse EventsSwelling (N= 44; 8; 5)2.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited Local Adverse EventsPain (N= 271; 76; 170)2.0 Days
Fluarix 18-40 Years Age GroupDuration of Solicited Local Adverse EventsRedness (N= 111; 14; 16)1.5 Days
Fluarix 18-40 Years Age GroupDuration of Solicited Local Adverse EventsEcchymosis (N= 7; 7; 2)4.5 Days
Primary

Number of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)

Solicited local AEs assessed include ecchymosis, pain, redness and swelling. Any: any symptom regardless of intensity grade. Grade 3 pain: considerable pain at rest, which prevented normal everyday activities. Grade 3 ecchymosis, redness and swelling: more than 100 millimeter.

Time frame: During a 7-day follow-up period after vaccination

Population: The analysis was performed on the Total Vaccinated Cohort on subjects who completed the symptom sheet.

ArmMeasureGroupValue (NUMBER)
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Ecchymosis0 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Swelling44 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Ecchymosis7 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Pain271 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Pain2 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Swelling1 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Redness111 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Redness12 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Pain76 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Pain0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Ecchymosis7 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Ecchymosis0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Redness14 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Redness0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Swelling8 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Swelling0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Pain0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Redness0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Pain170 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Swelling0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Grade 3 Ecchymosis0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Swelling7 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Redness16 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local Adverse Events (AEs)Any Ecchymosis2 Subjects
Primary

Number of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)

Solicited general AEs assessed include arthralgia, fatigue, headache, myalgia, nausea, shivering and fever. Any: any symptom regardless of intensity grade; any fever: oral temperature greater than or equal to 38 degrees Celsius (°C). Grade 3: symptoms that prevented normal activity ; Grade 3 fever: oral temperature greater than 40°C. Related: symptom assessed by the investigator as causally related to the study vaccination.

Time frame: During a 7-day follow-up period after vaccination

Population: The analysis was performed on the Total Vaccinated Cohort on subjects who completed the symptom sheet.

ArmMeasureGroupValue (NUMBER)
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Nausea2 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Headache4 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Fever0 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Nausea35 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Headache87 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Shivering88 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Myalgia116 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Myalgia132 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Arthralgia65 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Myalgia4 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Fatigue131 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Arthralgia80 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Shivering5 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Fatigue4 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Fever15 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Shivering95 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Fatigue109 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Fever17 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Nausea29 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Headache102 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Arthralgia2 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Fatigue0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Arthralgia34 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Arthralgia0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Fatigue46 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Arthralgia20 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Fatigue29 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Headache49 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Headache1 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Headache37 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Myalgia51 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Myalgia0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Myalgia38 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Nausea23 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Nausea0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Nausea15 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Shivering31 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Shivering0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Shivering24 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Fever0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Fever0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Fever0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Fatigue54 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Fever1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Nausea13 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Fatigue1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Myalgia70 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Shivering31 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Fatigue71 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Fever1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Shivering0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Arthralgia1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Fever0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Myalgia1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Headache39 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Shivering28 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Myalgia64 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Headache1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Arthralgia23 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Nausea17 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Any Headache54 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Related Arthralgia22 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Solicited General Adverse Events (AEs)Grade 3 Nausea0 Subjects
Primary

Number of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)

Unsolicited AE covers any AE 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: any AE regardless of intensity or relationship to vaccination. Grade 3: AE that prevented normal activity. Related: AE considered by the investigator to be causally related to the study vaccination.

Time frame: During a 21-day follow-up period after vaccination

Population: The analysis was performed on the Total Vaccinated Cohort which included all subjects with study vaccine administered.

ArmMeasureGroupValue (NUMBER)
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Grade 3 AEs7 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Any AEs82 Subjects
FluAS25 GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Related AEs19 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Grade 3 AEs5 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Any AEs68 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Related AEs6 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Any AEs62 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Related AEs11 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AEs)Grade 3 AEs5 Subjects
Secondary

Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune Marker

Results are presented as the geometric mean number of CD40L-positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD4 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune MarkerDay 0 (N= 62; 60; 39)822.37 Cells per millionStandard Deviation 875.39
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune MarkerDay 21 (N= 65; 63; 40)1961.18 Cells per millionStandard Deviation 1337.11
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune MarkerDay 0 (N= 62; 60; 39)660.01 Cells per millionStandard Deviation 560.95
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune MarkerDay 21 (N= 65; 63; 40)981.82 Cells per millionStandard Deviation 1056.18
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune MarkerDay 0 (N= 62; 60; 39)1260.65 Cells per millionStandard Deviation 681.46
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least CD40L and Another Immune MarkerDay 21 (N= 65; 63; 40)1556.00 Cells per millionStandard Deviation 830.54
Secondary

Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune Marker

Results are presented as the geometric mean number of IFN-γ -positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2) and tumor necrosis factor alpha (TNF-α).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD4 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 0 (N= 62; 60; 39)513.25 Cells per millionStandard Deviation 586.78
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 21 (N= 65; 63; 40)1081.11 Cells per millionStandard Deviation 966.36
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 0 (N= 62; 60; 39)371.64 Cells per millionStandard Deviation 397.45
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 21 (N= 65; 63; 40)574.28 Cells per millionStandard Deviation 685.03
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 0 (N= 62; 60; 39)753.45 Cells per millionStandard Deviation 556.25
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 21 (N= 65; 63; 40)870.84 Cells per millionStandard Deviation 589.37
Secondary

Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune Marker

Results are presented as the geometric mean number of IFN-γ -positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD4 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 0 (N= 62; 60; 39)769.96 Cells per millionStandard Deviation 809.58
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 21 (N= 65; 63; 40)1644.34 Cells per millionStandard Deviation 1110.14
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 0 (N= 62; 60; 39)634.57 Cells per millionStandard Deviation 518.17
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 21 (N= 65; 63; 40)856.60 Cells per millionStandard Deviation 855.82
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 0 (N= 62; 60; 39)1030.23 Cells per millionStandard Deviation 585.91
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 21 (N= 65; 63; 40)1288.54 Cells per millionStandard Deviation 664.82
Secondary

Number of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune Marker

Results are presented as the geometric mean number of IFN-γ -positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD4 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 0 (N= 62; 60; 39)586.39 Cells per millionStandard Deviation 698.83
FluAS25 GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 21 (N= 65; 63; 40)1189.34 Cells per millionStandard Deviation 945.05
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 21 (N= 65; 63; 40)608.51 Cells per millionStandard Deviation 700.32
Fluarix ≥ 65 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 0 (N= 62; 60; 39)409.05 Cells per millionStandard Deviation 415.62
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 21 (N= 65; 63; 40)921.15 Cells per millionStandard Deviation 549.61
Fluarix 18-40 Years Age GroupNumber of CD4 T-cells (Per Million CD4 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 0 (N= 62; 60; 39)746.02 Cells per millionStandard Deviation 551.82
Secondary

Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune Marker

Results are presented as the geometric mean number of CD40L-positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD8 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune MarkerDay 0 (N= 55; 54; 39)6.19 Cells per millionStandard Deviation 120.88
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune MarkerDay 21 (N= 64; 62; 40)8.09 Cells per millionStandard Deviation 123.89
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune MarkerDay 0 (N= 55; 54; 39)4.33 Cells per millionStandard Deviation 134.18
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune MarkerDay 21 (N= 64; 62; 40)5.79 Cells per millionStandard Deviation 85.2
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune MarkerDay 0 (N= 55; 54; 39)2.12 Cells per millionStandard Deviation 220.32
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least CD40L and Another Immune MarkerDay 21 (N= 64; 62; 40)3.64 Cells per millionStandard Deviation 71.55
Secondary

Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune Marker

Results are presented as the geometric mean number of IFN-γ -positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2) and tumor necrosis factor alpha (TNF-α).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD8 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 0 (N= 55; 54; 39)2.77 Cells per millionStandard Deviation 69.92
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 21 (N= 64; 62; 40)3.09 Cells per millionStandard Deviation 97.36
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 0 (N= 55; 54; 39)2.64 Cells per millionStandard Deviation 50.62
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 21 (N= 64; 62; 40)2.82 Cells per millionStandard Deviation 56.06
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 0 (N= 55; 54; 39)1.58 Cells per millionStandard Deviation 32.08
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IFN-γ and Another Immune MarkerDay 21 (N= 64; 62; 40)2.17 Cells per millionStandard Deviation 28.97
Secondary

Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune Marker

Results are presented as the geometric mean number of IFN-γ -positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD8 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 0 (N= 55; 54; 39)6.82 Cells per millionStandard Deviation 135.79
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 21 (N= 64; 62; 40)12.70 Cells per millionStandard Deviation 159.08
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 0 (N= 55; 54; 39)8.43 Cells per millionStandard Deviation 119.7
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 21 (N= 64; 62; 40)5.64 Cells per millionStandard Deviation 101.15
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 0 (N= 55; 54; 39)3.21 Cells per millionStandard Deviation 249.46
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least IL-2 and Another Immune MarkerDay 21 (N= 64; 62; 40)3.20 Cells per millionStandard Deviation 55.75
Secondary

Number of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune Marker

Results are presented as the geometric mean number of IFN-γ -positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Other immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD8 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 0 (N= 55; 54; 39)3.05 Cells per millionStandard Deviation 72.38
FluAS25 GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 21 (N= 64; 62; 40)5.67 Cells per millionStandard Deviation 89.23
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 0 (N= 55; 54; 39)2.48 Cells per millionStandard Deviation 42.55
Fluarix ≥ 65 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 21 (N= 64; 62; 40)3.54 Cells per millionStandard Deviation 69.71
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 0 (N= 55; 54; 39)3.13 Cells per millionStandard Deviation 44.03
Fluarix 18-40 Years Age GroupNumber of CD8 T-cells (Per Million CD8 T-cells) Producing at Least TNF-α and Another Immune MarkerDay 21 (N= 64; 62; 40)2.73 Cells per millionStandard Deviation 40.3
Secondary

Number of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune Markers

Results are presented as the geometric mean number of immune response marker-positive CD4 T-cells (per million CD4 T-cells) for pooled vaccine strains. Immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD4 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune MarkersDay 0 (N= 62; 60; 39)830.72 Cells per millionStandard Deviation 889.9
FluAS25 GroupNumber of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune MarkersDay 21 (N= 65; 63; 40)2013.28 Cells per millionStandard Deviation 1388.55
Fluarix ≥ 65 Years Age GroupNumber of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune MarkersDay 21 (N= 65; 63; 40)1010.22 Cells per millionStandard Deviation 1069.96
Fluarix ≥ 65 Years Age GroupNumber of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune MarkersDay 0 (N= 62; 60; 39)674.91 Cells per millionStandard Deviation 567.07
Fluarix 18-40 Years Age GroupNumber of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune MarkersDay 0 (N= 62; 60; 39)1276.25 Cells per millionStandard Deviation 701.42
Fluarix 18-40 Years Age GroupNumber of Cluster of Differentiation 4 (CD4) T-cells (Per Million CD4 T-cells) Producing at Least 2 Different Immune MarkersDay 21 (N= 65; 63; 40)1607.66 Cells per millionStandard Deviation 839.45
Secondary

Number of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune Markers

Results are presented as the geometric mean number of immune response marker-positive CD8 T-cells (per million CD8 T-cells) for pooled vaccine strains. Immune markers assessed include Cluster of Differentiation 40 Ligand (CD40L), interleukin-2 (IL-2), tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ).

Time frame: At Day 0 and 21

Population: The analysis was performed on the ATP cohort of immunogenicity Cell-Mediated Immunity (CMI) which included a subset of subjects from the ATP Cohort for immunogenicity HI. This included subjects for whom data for immune response marker-positive CD8 result was available 21 days after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
FluAS25 GroupNumber of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune MarkersDay 0 (N= 55; 54; 39)8.25 Cells per millionStandard Deviation 166.35
FluAS25 GroupNumber of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune MarkersDay 21 (N= 64; 62; 40)16.75 Cells per millionStandard Deviation 168.54
Fluarix ≥ 65 Years Age GroupNumber of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune MarkersDay 0 (N= 55; 54; 39)6.82 Cells per millionStandard Deviation 123.1
Fluarix ≥ 65 Years Age GroupNumber of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune MarkersDay 21 (N= 64; 62; 40)6.51 Cells per millionStandard Deviation 112.42
Fluarix 18-40 Years Age GroupNumber of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune MarkersDay 0 (N= 55; 54; 39)3.56 Cells per millionStandard Deviation 247.08
Fluarix 18-40 Years Age GroupNumber of Cluster of Differentiation 8 (CD8) T-cells (Per Million CD8 T-cells) Expressing at Least 2 Different Immune MarkersDay 21 (N= 64; 62; 40)3.48 Cells per millionStandard Deviation 79.78
Secondary

Number of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)

Medically significant conditions assessed include conditions prompting emergency room visits, hospitalizations or physician visits.

Time frame: During the vaccination phase of the study (Day 0 to Day 20) and during the long term follow-up phase of the study (Day 21 to Day 179)

Population: The analysis was performed on the Total Vaccinated Cohort which included all subjects with study vaccine administered.

ArmMeasureGroupValue (NUMBER)
FluAS25 GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Any MSCs - Vaccination Phase22 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Grade 3 MSCs - Vaccination Phase3 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Related MSCs - Vaccination Phase1 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Any MSCs - Long Term Follow-up Phase112 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Grade 3 MSCs - Long Term Follow-up Phase23 Subjects
FluAS25 GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Related MSCs - Long Term Follow-up Phase0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Related MSCs - Long Term Follow-up Phase0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Any MSCs - Vaccination Phase25 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Any MSCs - Long Term Follow-up Phase137 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Grade 3 MSCs - Long Term Follow-up Phase29 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Grade 3 MSCs - Vaccination Phase3 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Related MSCs - Vaccination Phase1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Grade 3 MSCs - Vaccination Phase2 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Related MSCs - Vaccination Phase1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Related MSCs - Long Term Follow-up Phase1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Any MSCs - Long Term Follow-up Phase71 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Any MSCs - Vaccination Phase11 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Reporting Any and Related Medically Significant Conditions (MSCs)Grade 3 MSCs - Long Term Follow-up Phase20 Subjects
Secondary

Number of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine Strains

A seroconverted subject was defined as a subject who had either a pre-vaccination titer below1:10 and a post-vaccination titer greater than or equal to1:40 or a pre-vaccination titer greater than or equal to1:10 and at least a four-fold increase in post-vaccination titer. The three vaccine strains assessed included A/Solomon Islands, A/Wisconsin and B/Malaysia.

Time frame: At Day 21

Population: The analysis was performed on the According-to-Protocol (ATP) Cohort for immunogenicity haemagglutination-inhibition (HI) which included all evaluable subjects who complied with the protocol up to the end of the active phase, for whom assay results were available for antibodies against at least one study vaccine antigen component after vaccination.

ArmMeasureGroupValue (NUMBER)
FluAS25 GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin226 Subjects
FluAS25 GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands320 Subjects
FluAS25 GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia82 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin156 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands238 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia66 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands94 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia46 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroconverted for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin66 Subjects
Secondary

Number of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine Strains

A seroprotected subject was defined as a subject with a serum HI titer greater than or equal to1:40 that is usually accepted as indicating protection. The three vaccine strains assessed included A/Solomon Islands, A/Wisconsin and B/Malaysia.

Time frame: At Days 0 and 21

Population: The analysis was performed on the According-to-Protocol (ATP) Cohort for immunogenicity haemagglutination-inhibition (HI) which included all evaluable subjects who complied with the protocol up to the end of the active phase, for whom assay results were available for antibodies against at least one study vaccine antigen component after vaccination.

ArmMeasureGroupValue (NUMBER)
FluAS25 GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia [Day 21] (N= 447; 461; 271)445 Subjects
FluAS25 GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 0] (N= 445; 461; 270)71 Subjects
FluAS25 GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin [Day 0] (N= 445; 461; 270)381 Subjects
FluAS25 GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin [Day 21] (N= 447; 461; 271)445 Subjects
FluAS25 GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 21] (N= 447; 461; 271)381 Subjects
FluAS25 GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia [Day 0] (N= 445; 461; 270)392 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 0] (N= 445; 461; 270)73 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia [Day 0] (N= 445; 461; 270)399 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia [Day 21] (N= 447; 461; 271)443 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 21] (N= 447; 461; 271)306 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin [Day 0] (N= 445; 461; 270)362 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin [Day 21] (N= 447; 461; 271)442 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia [Day 21] (N= 447; 461; 271)268 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 0] (N= 445; 461; 270)164 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 21] (N= 447; 461; 271)255 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin [Day 21] (N= 447; 461; 271)270 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia [Day 0] (N= 445; 461; 270)236 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects Seroprotected for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin [Day 0] (N= 445; 461; 270)235 Subjects
Secondary

Number of Subjects With Any and Related Serious Adverse Events (SAEs)

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

Time frame: During the vaccination phase of the study (Day 0 to Day 20) and during the long term follow-up phase of the study (Day 21 to Day 179)

Population: The analysis was performed on the Total Vaccinated Cohort which included all subjects with study vaccine administered.

ArmMeasureGroupValue (NUMBER)
FluAS25 GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Any SAEs - Long Term Follow-up Phase21 Subjects
FluAS25 GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Any SAEs - Vaccination Phase2 Subjects
FluAS25 GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Related SAEs - Long Term Follow-up Phase0 Subjects
FluAS25 GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Related SAEs - Vaccination Phase1 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Any SAEs - Long Term Follow-up Phase24 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Related SAEs - Vaccination Phase0 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Any SAEs - Vaccination Phase3 Subjects
Fluarix ≥ 65 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Related SAEs - Long Term Follow-up Phase0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Related SAEs - Vaccination Phase0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Any SAEs - Vaccination Phase1 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Related SAEs - Long Term Follow-up Phase0 Subjects
Fluarix 18-40 Years Age GroupNumber of Subjects With Any and Related Serious Adverse Events (SAEs)Any SAEs - Long Term Follow-up Phase3 Subjects
Secondary

Seroconversion Factors for HI Antibodies Against Each of the Three Vaccine Strains

Seroconversion factor was defined as the fold increase in serum HI Geometric Mean Titers post-vaccination compared to Day 0.

Time frame: At Day 21

Population: The analysis was performed on the According-to-Protocol (ATP) Cohort for immunogenicity haemagglutination-inhibition (HI) which included all evaluable subjects who complied with the protocol up to the end of the active phase, for whom assay results were available for antibodies against at least one study vaccine antigen component after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FluAS25 GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia2.1 Fold increase
FluAS25 GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin3.9 Fold increase
FluAS25 GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands9.8 Fold increase
Fluarix ≥ 65 Years Age GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia1.8 Fold increase
Fluarix ≥ 65 Years Age GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin2.7 Fold increase
Fluarix ≥ 65 Years Age GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands5.0 Fold increase
Fluarix 18-40 Years Age GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsB/Malaysia1.9 Fold increase
Fluarix 18-40 Years Age GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsA/Solomon Islands2.9 Fold increase
Fluarix 18-40 Years Age GroupSeroconversion Factors for HI Antibodies Against Each of the Three Vaccine StrainsA/Wisconsin2.2 Fold increase
Secondary

Serum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine Strains

Titers were expressed as Geometric Mean Titers. The three vaccine strains assessed included A/Solomon Islands, A/Wisconsin and B/Malaysia.

Time frame: At Days 0 and 21

Population: The analysis was performed on the According-to-Protocol (ATP) Cohort for immunogenicity haemagglutination-inhibition (HI) which included all evaluable subjects who complied with the protocol up to the end of the active phase, for whom assay results were available for antibodies against at least one study vaccine antigen component after vaccination.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FluAS25 GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsB/Malaysia [Day 0] (N= 445; 461; 270)95.8 Titer
FluAS25 GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Wisconsin [Day 0] (N= 445; 461; 270)110.0 Titer
FluAS25 GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsB/Malaysia [Day 21] (N= 447; 461; 271)202.2 Titer
FluAS25 GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Wisconsin [Day 21] (N= 447; 461; 271)430.6 Titer
FluAS25 GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 21] (N= 447; 461; 271)103.5 Titer
FluAS25 GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 0] (N= 445; 461; 270)10.5 Titer
Fluarix ≥ 65 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 0] (N= 445; 461; 270)10.8 Titer
Fluarix ≥ 65 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsB/Malaysia [Day 21] (N= 447; 461; 271)152.3 Titer
Fluarix ≥ 65 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 21] (N= 447; 461; 271)53.7 Titer
Fluarix ≥ 65 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Wisconsin [Day 0] (N= 445; 461; 270)79.5 Titer
Fluarix ≥ 65 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Wisconsin [Day 21] (N= 447; 461; 271)217.9 Titer
Fluarix ≥ 65 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsB/Malaysia [Day 0] (N= 445; 461; 270)82.5 Titer
Fluarix 18-40 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Wisconsin [Day 21] (N= 447; 461; 271)251.2 Titer
Fluarix 18-40 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 21] (N= 447; 461; 271)143.4 Titer
Fluarix 18-40 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Solomon Islands [Day 0] (N= 445; 461; 270)48.9 Titer
Fluarix 18-40 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsB/Malaysia [Day 0] (N= 445; 461; 270)110.5 Titer
Fluarix 18-40 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsA/Wisconsin [Day 0] (N= 445; 461; 270)112.5 Titer
Fluarix 18-40 Years Age GroupSerum Hemagglutination-inhibition (HI) Antibody Titers Against Each of the Three Vaccine StrainsB/Malaysia [Day 21] (N= 447; 461; 271)209.2 Titer

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026