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Safety and Immunogenicity of MF59C.1 Adjuvanted Trivalent Subunit Influenza Vaccine in Elderly Subjects

A Phase III, Randomized, Controlled, Observer-Blind, Multicenter Study to Evaluate the Safety and Immunogenicity and the Consistency of Three Consecutive Lots of a MF59C.1 Adjuvanted Trivalent Subunit Influenza Vaccine in Elderly Subjects Aged 65 Years and Older

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01162122
Enrollment
7109
Registered
2010-07-14
Start date
2010-08-31
Completion date
2011-11-30
Last updated
2014-06-26

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

Conditions

Influenza

Keywords

Elderly, Influenza, Immunogenicity, Safety, Adjuvant, Adjuvanted, Adjuvants, Vaccines

Brief summary

The present phase III study aims to evaluate the safety and immunogenicity of MF59-adjuvanted subunit seasonal influenza vaccine and to evaluate the consistency in the manufacturing process of three consecutive lots of MF59-adjuvanted subunit seasonal influenza vaccine with respect to immunogenicity in subjects aged 65 years and older. The active comparator non-adjuvanted seasonal influenza vaccine is approved for use in this age group in the United States and will be used to provide a comparative assessment for immunogenicity and safety.

Interventions

BIOLOGICALMF59 adjuvanted trivalent subunit influenza vaccine (aTIV)

one dose 0.5 mL administered IM in the deltoid muscle of (preferably) the non-dominant arm

BIOLOGICALNon-adjuvanted trivalent subunit influenza vaccine (TIV)

one 0.5 mL dose administered IM in the deltoid muscle of (preferably) the non-dominant arm

Sponsors

Novartis Vaccines
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

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

Inclusion criteria

Males and females subjects aged ≥65 years at day of vaccination who are willing and able to comply to study procedures.

Exclusion criteria

1. Individuals with behavioral or cognitive impairment or a psychiatric condition or with a history of any illness that,in the opinion of the investigator, would have interfered with the subject's ability to participate in the study. 2. Individuals who were not able to comprehend and/or follow all required study procedures for the whole period of the study. 3. Known or suspected impairment/alteration of immune function. 4. Individuals with a known bleeding diathesis. 5. History of Guillain-Barré syndrome. 6. Individuals with history of allergy to vaccine components and/or a history of any anaphylaxis, serious vaccine reactions or hypersensitivity to influenza viral proteins, egg proteins (including ovalbumin), polymyxin, neomycin, betapropiolactone, thimerosal/ sodium ethylmercurothiosalicylate/ mercury and nonylphenolethoxylate/ nonoxynol-9 (spermicide). 7. Receipt of another investigational agent within 30 days prior to enrollment in the study or before completion of the safety follow-up period in another study. 8. Individuals who had received any other vaccines within 2 weeks for inactivated vaccines or 4 weeks for live vaccines prior to enrollment in this study or who had planned to receive any vaccine within 3 weeks from the study vaccine. 9. Individuals who had received vaccination against seasonal influenza in the previous 6 months. 10. Individuals with oral temperature ≥38.0°C (≥100.4°F) on day of study vaccination. 11. Individuals with history of substance or alcohol abuse within the past 2 years. 12. Individuals providing consent who did not consent to the retention of their serum samples after study completion. 13. Elective surgery or hospitalization planned to occur during the treatment phase or during the follow-up phase that, according to the opinion of the investigator, might have poses additional risk to the subject. 14. Subjects from whom blood could not be drawn at visit 1.

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVDay 22 post vaccinationImmunologic equivalence of 3 consecutive production lots of aTIV (Lot 1, Lot 2 and Lot 3), was assessed in terms of Hemagglutination Inhibition (HI) Geometric Mean Titers (GMTs) in subjects, at three weeks after vaccination, against each vaccine strain.
Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPSDay 22 post vaccinationThe non-inferiority of HI antibody responses of aTIV compared to TIV assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.
Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSDay 22 post vaccinationThe non-inferiority of HI antibody responses of aTIV compared to TIV assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the three homologous vaccine strains. Seroconversion defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)Day 22 post vaccinationThe superiority of HI antibody responses of aTIV compared to TIV assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.
Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASDay 22 post vaccinationThe superiority of HI antibody responses of aTIV compared to TIV assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the three homologous vaccine strains. Seroconversion defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsDay 22 post vaccinationThe percentage of subjects demonstrating HI titers ≥40, in overall group and in subjects with pre-defined co-morbidities (high risk group), against homologous strains, three weeks after vaccination with aTIV or TIV.
Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsDay 22 post vaccinationThe percentage of subjects achieving seroconversion in HI titers from baseline, in overall group and in subjects with pre-defined co-morbidities (high risk group), against homologous strains, three weeks after vaccination with aTIV or TIV. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsDay 22 post vaccinationThe GMR of post-vaccination versus pre-vaccination HI titers (day 22/day 1) in overall group and in subjects with pre-defined co-morbidities (high risk group), against homologous strains, three weeks after vaccination with aTIV or TIV.
Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsDay 22 post vaccinationThe percentage of subjects demonstrating HI titers ≥40, in overall group and in subjects with pre-defined co-morbidities (high risk group), against heterologous strains, three weeks after vaccination with aTIV or TIV.
Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsDay 22 post vaccinationThe GMR of post-vaccination versus pre-vaccination HI titers (day 22/day 1) in overall group and in subjects with pre-defined co-morbidities (high risk group), against heterologous strains, three weeks after vaccination with aTIV or TIV.
Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsDay 22 post vaccinationThe percentage of subjects achieving seroconversion in HI titers from baseline, in overall group and in subjects with pre-defined co-morbidities (high risk group), against heterologous strains, three weeks after vaccination with aTIV or TIV. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Secondary

MeasureTime frameDescription
Number of High Risk Subjects With Exacerbation of Preexisting Chronic Disease, Across Vaccine GroupsDay 1 through Day 366 post vaccinationThe number of high risk subjects reporting exacerbation of preexisting chronic conditions (i.e.congestive heart failure, Chronic Obstructive Pulmonary disease (COPD), asthma, hepatic disease, renal insufficiency, and neurological/neuromuscular or metabolic disorders including diabetes mellitus) in aTIV group compared to TIV group.
Number of Subjects Reporting Healthcare Utilization Across Vaccine GroupsDay 1 through Day 366 post vaccinationThe number of subjects with emergency room visits, unscheduled physician visits, and hospitalizations due to community acquired influenza or pneumonia, cardiopulmonary disease, cardiac disease, respiratory or pulmonary disease,in aTIV group compared to TIV group.
Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPSDay 22 post vaccinationThe non-inferiority of HI antibody responses of ATIV compared to TIV, in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.
Number of Subjects Reporting Solicited Adverse Events Following VaccinationDay 1 through Day 7 post vaccinationThe number of subjects reporting solicited local and systemic adverse events and other adverse events in aTIV group compared to TIV group.
All Cause Mortality Rate, Across Vaccine GroupsDay 1 through Day 366 post vaccinationThe all-cause mortality rate (excluding injury)reported in aTIV group compared to TIV group, by country.
Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSDay 22 post vaccinationThe non-inferiority of HI antibody responses of ATIV compared to TIV, in subjects with pre-defined co-morbidities (high risk group), assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the homologous vaccine strains. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FASDay 22 post vaccinationThe superiority of HI antibody responses of aTIV compared to TIV, in subjects with predefined co-morbidities (high risk group) assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.
Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASDay 22 postvaccinationThe superiority of HI antibody responses of aTIV compared to TIV, in subjects with pre-defined co-morbidities (high risk group), assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the homologous vaccine strains. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSDay 22 post vaccinationThe non-inferiority of HI antibody responses of aTIV compared to TIV against the heterologous vaccine strains, in overall group and in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of post vaccination GMTs at three weeks after vaccination .
Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASDay 22 post vaccinationThe superiority of HI antibody responses of aTIV compared to TIV against the heterologous vaccine strains, in overall group and in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of post vaccination GMTs at three weeks after vaccination.
Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSDay 22 postvaccinationThe non-inferiority of HI antibody responses of aTIV compared to TIV against the heterologous strains, in overall group and in subjects with pre-defined co-morbidities (high risk group), assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASDay 22 post vaccinationThe superiority of HI antibody responses of aTIV compared to TIV against the heterologous vaccine strains, in overall group and in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of percentage of subjects achieving seroconversion, at three weeks after vaccination. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Persistence of GMTs Against Homologous and Heterologous StrainsDay 181, Day 366 post vaccinationThe GMTs against homologous and heterologous strains, persisting in subjects at six months (day 181) and one year (day 366) after vaccination with either aTIV or TIV.
Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsDay 181, Day 366 post vaccinationThe percentage of subjects demonstrating seroconversion in HI titers against homologous and heterologous strains, at six months (day 181) and one year (day 366) after vaccination with either aTIV or TIV. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.
Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsDay 22 through Day 366 post vaccinationThe number of subjects reporting ILI from three weeks after vaccination to up to one year in aTIV group compared to TIV group, by country.

Countries

Colombia, Panama, Philippines, United States

Participant flow

Recruitment details

Subjects were enrolled from 4 sites in Columbia, 2 sites in Panama, 11 sites in Philippines, 21 sites in USA.

Pre-assignment details

Five enrolled subjects were not randomized and did not receive study vaccination, hence were discontinued.

Participants by arm

ArmCount
aTIV (Pooled)
Subjects received one dose of MF59-adjuvanted trivalent subunit influenza vaccine (aTIV) from one of three consecutive lots (Lot 1, Lot 2 or Lot 3).
3,545
Licensed TIV
Subjects received one dose of non-adjuvanted trivalent subunit influenza vaccine (TIV).
3,537
Total7,082

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdministrative reason11
Overall StudyAdverse Event32
Overall StudyDeath5146
Overall StudyInappropriate enrollment54
Overall StudyLost to Follow-up7391
Overall StudyMissing primary reason10
Overall StudyProtocol Violation22
Overall StudyUnable to classify37
Overall StudyWithdrawal by Subject5243

Baseline characteristics

CharacteristicaTIV (Pooled)Licensed TIVTotal
Age, Continuous72.0 years
STANDARD_DEVIATION 5.3
71.8 years
STANDARD_DEVIATION 5.3
71.9 years
STANDARD_DEVIATION 5.3
Sex: Female, Male
Female
2272 Participants2342 Participants4614 Participants
Sex: Female, Male
Male
1273 Participants1195 Participants2468 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
1,678 / 3,5451,257 / 3,537
serious
Total, serious adverse events
264 / 3,545243 / 3,537

Outcome results

Primary

Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPS

The non-inferiority of HI antibody responses of aTIV compared to TIV assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.

Time frame: Day 22 post vaccination

Population: Analysis was done on PPS.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPSH1N1 strain (N=3225,3257)198 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPSH3N2 strain (N=3225,3256)544 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPSB strain55 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPSH1N1 strain (N=3225,3257)141 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPSH3N2 strain (N=3225,3256)337 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Geometric Mean Titers (GMTs) Against Homologous Strains - PPSB strain48 Titers
95% CI: [1.32, 1.49]
95% CI: [1.52, 1.7]
95% CI: [1.08, 1.21]
Primary

Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)

The superiority of HI antibody responses of aTIV compared to TIV assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.

Time frame: Day 22 post vaccination

Population: Analysis was done on FAS i.e all randomized subjects who received a study vaccination and provided evaluable serum samples both at day 1 and at day 22

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)H1N1 strain (N=3477,3480)196 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)H3N2 strain (N=3477,3479)534 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)B strain54 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)H1N1 strain (N=3477,3480)142 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)H3N2 strain (N=3477,3479)334 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Homologous Strains-Full Analysis Set (FAS)B strain48 Titers
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 homologous strains was \>1.5.95% CI: [1.29, 1.46]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 homologous strains was \>1.5.95% CI: [1.51, 1.68]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 homologous strains was \>1.5.95% CI: [1.08, 1.2]
Primary

Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FAS

The superiority of HI antibody responses of aTIV compared to TIV assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the three homologous vaccine strains. Seroconversion defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 post vaccination

Population: Analysis was done on FAS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH1N1 strain (N=3477, 3480)77.3 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH3N2 strain (N=3477,3479)73.7 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASB strain46.9 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH1N1 strain (N=3477, 3480)67.8 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH3N2 strain (N=3477,3479)60.6 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASB strain41.5 Percentage of subjects
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 homologous strains was \>10%.95% CI: [6.9, 10.9]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 homologous strains was \>10%.95% CI: [10.6, 14.8]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 homologous strains was \>10%.95% CI: [2.9, 7.2]
Primary

Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPS

The non-inferiority of HI antibody responses of aTIV compared to TIV assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the three homologous vaccine strains. Seroconversion defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 post vaccination

Population: Analysis was done on PPS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH1N1 strain (N=3225,3257)77.4 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH3N2 strain (N=3225,3256)74.0 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSB strain47.0 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH1N1 strain (N=3225,3257)67.6 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH3N2 strain (N=3225,3256)60.7 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSB strain41.2 Percentage of subjects
95% CI: [7.1, 11.3]
95% CI: [10.5, 14.9]
95% CI: [3, 7.4]
Primary

Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous Strains

The GMR of post-vaccination versus pre-vaccination HI titers (day 22/day 1) in overall group and in subjects with pre-defined co-morbidities (high risk group), against heterologous strains, three weeks after vaccination with aTIV or TIV.

Time frame: Day 22 post vaccination

Population: Analysis was done on the FAS.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Brisbane strain (N=887,880), overall5.76 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Wisconsin strain, overall4.95 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsB strain (N=887,880), overall5.76 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Brisbane strain (N=330,333), high risk group5.42 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Wisconsin strain (N=330,333), high risk group4.67 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsB strain (N=330,333), high risk group5.41 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Wisconsin strain (N=330,333), high risk group3.73 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Brisbane strain (N=887,880), overall3.87 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Brisbane strain (N=330,333), high risk group4.15 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsH3N2/Wisconsin strain, overall3.54 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsB strain (N=330,333), high risk group4.77 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers, Against Heterologous StrainsB strain (N=887,880), overall5.28 Ratio
Primary

Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous Strains

The GMR of post-vaccination versus pre-vaccination HI titers (day 22/day 1) in overall group and in subjects with pre-defined co-morbidities (high risk group), against homologous strains, three weeks after vaccination with aTIV or TIV.

Time frame: Day 22 post vaccination

Population: Analysis was done on the FAS

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH1N1 strain (N=1299, 1273), high risk group12 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH3N2 strain (N=3477, 3479), overall10 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH3N2 strain (N=1299, 1273), high risk group9.26 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH1N1 strain (N=3477, 3480), overall13 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsB strain (N=1300, 1273), high risk group4.48 Ratio
aTIV_Lot 1Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsB strain , overall4.85 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsB strain (N=1300, 1273), high risk group3.99 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH1N1 strain (N=3477, 3480), overall9.77 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH3N2 strain (N=3477, 3479), overall6.54 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH1N1 strain (N=1299, 1273), high risk group9.17 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsH3N2 strain (N=1299, 1273), high risk group6.24 Ratio
aTIV_Lot 2Geometric Mean Ratio (GMR) of Post- Versus Pre-vaccination HI Titers Against Homologous StrainsB strain , overall4.27 Ratio
Primary

Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIV

Immunologic equivalence of 3 consecutive production lots of aTIV (Lot 1, Lot 2 and Lot 3), was assessed in terms of Hemagglutination Inhibition (HI) Geometric Mean Titers (GMTs) in subjects, at three weeks after vaccination, against each vaccine strain.

Time frame: Day 22 post vaccination

Population: Analysis was done on the per protocol set population (PPS) i.e all randomised subjects who received the correct vaccine, provided evaluable serum samples, and had no major protocol deviation prior to unblinding.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVH3N2 strain (N=1072,1078,1075)548 Titers
aTIV_Lot 1Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVH1N1 strain (N=1072,1078,1075)209 Titers
aTIV_Lot 1Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVB strain56 Titers
aTIV_Lot 2Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVH3N2 strain (N=1072,1078,1075)542 Titers
aTIV_Lot 2Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVH1N1 strain (N=1072,1078,1075)187 Titers
aTIV_Lot 2Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVB strain56 Titers
aTIV_Lot 3Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVH1N1 strain (N=1072,1078,1075)199 Titers
aTIV_Lot 3Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVB strain58 Titers
aTIV_Lot 3Geometric Mean Titers in Subjects After Receiving One Dose of Lot 1 or Lot 2 or Lot 3 of aTIVH3N2 strain (N=1072,1078,1075)556 Titers
95% CI: [1, 1.24]
95% CI: [0.95, 1.17]
95% CI: [0.85, 1.05]
95% CI: [0.92, 1.11]
95% CI: [0.9, 1.08]
95% CI: [0.89, 1.07]
95% CI: [0.91, 1.1]
95% CI: [0.87, 1.05]
95% CI: [0.87, 1.05]
Primary

Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous Strains

The percentage of subjects achieving seroconversion in HI titers from baseline, in overall group and in subjects with pre-defined co-morbidities (high risk group), against heterologous strains, three weeks after vaccination with aTIV or TIV. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 post vaccination

Population: Analysis was done on the FAS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Brisbane, overall (N=887, 880)60.4 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Wisconsin, overall57.5 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsB strain, overall (N=887, 880)53.3 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Brisbane (N= 330,333), high risk group54.2 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Wisconsin ( N= 330,333), high risk group52.1 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsB strain (N= 330, 333), high risk group46.4 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Wisconsin ( N= 330,333), high risk group38.7 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Brisbane, overall (N=887, 880)48.4 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Brisbane (N= 330,333), high risk group41.4 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsH3N2/Wisconsin, overall45.5 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsB strain (N= 330, 333), high risk group41.7 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Heterologous StrainsB strain, overall (N=887, 880)49.8 Percentage of subjects
Primary

Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous Strains

The percentage of subjects achieving seroconversion in HI titers from baseline, in overall group and in subjects with pre-defined co-morbidities (high risk group), against homologous strains, three weeks after vaccination with aTIV or TIV. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 post vaccination

Population: Analysis was done on the FAS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH1N1 strain ( N= 3477,3480), overall77.3 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH3N2 strain ( N= 3477,3479), overall73.7 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsB strain, overall46.9 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH1N1 strain ( N= 1299,1273), high risk group72.6 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH3N2 strain ( N= 1299,1273), high risk group68.9 Percentage of subjects
aTIV_Lot 1Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsB strain (N= 1299,1273), high risk group40.0 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH3N2 strain ( N= 1299,1273), high risk group55.2 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH1N1 strain ( N= 3477,3480), overall67.8 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH1N1 strain ( N= 1299,1273), high risk group62.0 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsH3N2 strain ( N= 3477,3479), overall60.6 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsB strain (N= 1299,1273), high risk group34.3 Percentage of subjects
aTIV_Lot 2Percentage of Subjects Achieving Seroconversion in HI Titers, Against Homologous StrainsB strain, overall41.5 Percentage of subjects
Primary

Percentage of Subjects With HI Titers ≥40 Against Heterologous Strains

The percentage of subjects demonstrating HI titers ≥40, in overall group and in subjects with pre-defined co-morbidities (high risk group), against heterologous strains, three weeks after vaccination with aTIV or TIV.

Time frame: Day 22 post vaccination

Population: Analysis was done on the FAS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Brisbane strain(N=887,880), overall95.8 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Wisconsin strain, overall99.6 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsB strain (N=887,880), overall76.2 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Brisbane (N=330, 333), high risk group94.9 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Wisconsin (N=330, 333), high risk group99.7 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsB strain (N=330, 333), high risk group83.3 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Wisconsin (N=330, 333), high risk group98.5 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Brisbane strain(N=887,880), overall94.0 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Brisbane (N=330, 333), high risk group94.0 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsH3N2/Wisconsin strain, overall98.4 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsB strain (N=330, 333), high risk group78.4 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Heterologous StrainsB strain (N=887,880), overall72.4 Percentage of subjects
Primary

Percentage of Subjects With HI Titers ≥40 Against Homologous Strains

The percentage of subjects demonstrating HI titers ≥40, in overall group and in subjects with pre-defined co-morbidities (high risk group), against homologous strains, three weeks after vaccination with aTIV or TIV.

Time frame: Day 22 post vaccination

Population: Analysis was done on the FAS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH3N2 strain (N=3477,3479) overall99.0 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH1N1 strain (N=3477,3480) overall91.1 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsB strain, overall64.6 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH1N1 strain (N=1299,1273), high risk group91.9 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH3N2 strain (N=1299,1273), high risk group98.7 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsB strain (N=1300,1273), high risk group66.3 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH3N2 strain (N=1299,1273), high risk group96.7 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH1N1 strain (N=1299,1273), high risk group85.8 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH1N1 strain (N=3477,3480) overall84.5 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsH3N2 strain (N=3477,3479) overall97.0 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsB strain (N=1300,1273), high risk group61.4 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With HI Titers ≥40 Against Homologous StrainsB strain, overall58.9 Percentage of subjects
Secondary

All Cause Mortality Rate, Across Vaccine Groups

The all-cause mortality rate (excluding injury)reported in aTIV group compared to TIV group, by country.

Time frame: Day 1 through Day 366 post vaccination

Population: Analysis was done on the mFAS (effectiveness).

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1All Cause Mortality Rate, Across Vaccine GroupsColumbia (N=519, 509)7 participants
aTIV_Lot 1All Cause Mortality Rate, Across Vaccine GroupsPanama (N=109, 105)0 participants
aTIV_Lot 1All Cause Mortality Rate, Across Vaccine GroupsPhilippines (N=1873,1867)39 participants
aTIV_Lot 1All Cause Mortality Rate, Across Vaccine GroupsUnited states (N=1039,1060)6 participants
aTIV_Lot 2All Cause Mortality Rate, Across Vaccine GroupsUnited states (N=1039,1060)5 participants
aTIV_Lot 2All Cause Mortality Rate, Across Vaccine GroupsColumbia (N=519, 509)7 participants
aTIV_Lot 2All Cause Mortality Rate, Across Vaccine GroupsPhilippines (N=1873,1867)34 participants
aTIV_Lot 2All Cause Mortality Rate, Across Vaccine GroupsPanama (N=109, 105)0 participants
Secondary

Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FAS

The superiority of HI antibody responses of aTIV compared to TIV, in subjects with predefined co-morbidities (high risk group) assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.

Time frame: Day 22 post vaccination

Population: Analysis was done on FAS population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FASH1N1 strain (N=1299,1273)212 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FASH3N2 strain (N=1299,1273)499 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FASB strain60 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FASH1N1 strain (N=1299,1273)160 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FASH3N2 strain (N=1299,1273)324 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-FASB strain54 Titers
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 homologous strains was \>1.5.95% CI: [1.2, 1.45]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 homologous strains was \>1.5.95% CI: [1.42, 1.68]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 homologous strains was \>1.5.95% CI: [1.03, 1.21]
Secondary

Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPS

The non-inferiority of HI antibody responses of ATIV compared to TIV, in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of post vaccination GMTs at three weeks after vaccination against the three homologous vaccine strains.

Time frame: Day 22 post vaccination

Population: Analysis was done on PPS.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPSH1N1 strain (1194, 1190)221 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPSH3N2 strain (1194, 1190)519 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPSB strain61 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPSH1N1 strain (1194, 1190)161 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPSH3N2 strain (1194, 1190)331 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in High Risk Group in Terms of GMTs Against Homologous Strains-PPSB strain54 Titers
95% CI: [1.25, 1.52]
95% CI: [1.44, 1.72]
95% CI: [1.03, 1.21]
Secondary

Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FAS

The superiority of HI antibody responses of aTIV compared to TIV against the heterologous vaccine strains, in overall group and in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of post vaccination GMTs at three weeks after vaccination.

Time frame: Day 22 post vaccination

Population: Analysis was done on FAS.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Brisbane (overall) (N=887,880)362 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Wisconsin (overall)1016 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASB strain (overall) (N=887,880)87 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Brisbane (high risk) (N=302,307)364 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Wisconsin (high risk) (N=302,307)927 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASB strain (high risk) (N=302,307)112 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Wisconsin (high risk) (N=302,307)724 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Brisbane (overall) (N=887,880)243 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Brisbane (high risk) (N=302,307)267 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASH3N2/Wisconsin (overall)738 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASB strain (high risk) (N=302,307)99 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-FASB strain (overall) (N=887,880)80 Titers
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 heterologous strains was \>1.5.95% CI: [1.33, 1.67]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 heterologous strains was \>1.5.95% CI: [1.25, 1.52]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 heterologous strains was \>1.5.95% CI: [0.99, 1.21]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 heterologous strains was \>1.5.95% CI: [1.15, 1.61]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 heterologous strains was \>1.5.95% CI: [1.1, 1.48]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 vaccine group GMT ratios for at least 2 heterologous strains was \>1.5.95% CI: [0.97, 1.31]
Secondary

Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPS

The non-inferiority of HI antibody responses of aTIV compared to TIV against the heterologous vaccine strains, in overall group and in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of post vaccination GMTs at three weeks after vaccination .

Time frame: Day 22 post vaccination

Population: Analysis was done on PPS.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Brisbane (overall) (N=834,814)369 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Wisconsin (overall)1037 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSB strain (overall) (N=834,814)89 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Brisbane (high risk) (N=302,307)377 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Wisconsin (high risk) (N=302,307)965 Titers
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSB strain (high risk) (N=302,307)117 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Wisconsin (high risk) (N=302,307)751 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Brisbane (overall) (N=834,814)255 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Brisbane (high risk) (N=302,307)279 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSH3N2/Wisconsin (overall)764 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSB strain (high risk) (N=302,307)105 Titers
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of GMTs Against Heterologous Strains-PPSB strain (overall) (N=834,814)82 Titers
95% CI: [1.29, 1.63]
95% CI: [1.23, 1.5]
95% CI: [0.98, 1.21]
95% CI: [1.13, 1.61]
95% CI: [1.1, 1.5]
95% CI: [0.95, 1.3]
Secondary

Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FAS

The superiority of HI antibody responses of aTIV compared to TIV against the heterologous vaccine strains, in overall group and in subjects with pre-defined co-morbidities (high risk subjects), was assessed in terms of percentage of subjects achieving seroconversion, at three weeks after vaccination. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 post vaccination

Population: Analysis was done on FAS

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Brisbane (overall) (N=887,880)60.4 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Wisconsin (overall)57.5 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASB strain (overall) (N=887,880)53.3 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Brisbane (high risk) (N=330, 333)54.2 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Wisconsin (high risk) (N=330,333)52.1 Percentage of subjects
aTIV_Lot 1Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASB strain (high risk) (N=330, 333)46.4 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Wisconsin (high risk) (N=330,333)38.7 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Brisbane (overall) (N=887,880)48.4 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Brisbane (high risk) (N=330, 333)41.4 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASH3N2/Wisconsin (overall)45.5 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASB strain (high risk) (N=330, 333)41.7 Percentage of subjects
aTIV_Lot 2Comparison of aTIV Versus TIV in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-FASB strain (overall) (N=887,880)49.8 Percentage of subjects
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 heterologous strains was \>10%.95% CI: [8.1, 16.9]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 heterologous strains was \>10%.95% CI: [8.1, 17.1]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 heterologous strains was \>10%.95% CI: [0.4, 8.8]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 heterologous strains was \>10%.95% CI: [5.2, 19.6]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 heterologous strains was \>10%.95% CI: [5.8, 20.3]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 heterologous strains was \>10%.95% CI: [-1.6, 11.8]
Secondary

Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FAS

The superiority of HI antibody responses of aTIV compared to TIV, in subjects with pre-defined co-morbidities (high risk group), assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the homologous vaccine strains. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 postvaccination

Population: Analysis was done on FAS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH1N1 strain (N=1299,1273)72.6 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH3N2 strain (N=1299,1273)68.9 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASB strain40.0 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH1N1 strain (N=1299,1273)62.0 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASH3N2 strain (N=1299,1273)55.2 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-FASB strain34.3 Percentage of subjects
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 homologous strains was \>10%.95% CI: [6.4, 13.3]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 homologous strains was \>10%.95% CI: [9.5, 16.6]
Comparison: Superiority was established if the lower bound of the 95% CI for the day 22 differences in seroconversion rates for at least 2 homologous strains was \>10%.95% CI: [1.5, 8.3]
Secondary

Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPS

The non-inferiority of HI antibody responses of ATIV compared to TIV, in subjects with pre-defined co-morbidities (high risk group), assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination against the homologous vaccine strains. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 post vaccination

Population: Analysis was done on PPS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH1N1 strain (N=1194, 1190)73.6 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH3N2 strain (N=1194, 1190)69.1 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSB strain40.0 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH1N1 strain (N=1194, 1190)61.7 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSH3N2 strain (N=1194, 1190)54.8 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in High Risk Group in Terms of Percentage of Subjects Achieving Seroconversion Against Homologous Strains-PPSB strain34.0 Percentage of subjects
95% CI: [7.5, 14.6]
95% CI: [9.8, 17.2]
95% CI: [1.4, 8.5]
Secondary

Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPS

The non-inferiority of HI antibody responses of aTIV compared to TIV against the heterologous strains, in overall group and in subjects with pre-defined co-morbidities (high risk group), assessed in terms of percentage of subjects achieving seroconversion at three weeks after vaccination. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 22 postvaccination

Population: Analysis was done on PPS.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Brisbane (overall) (N=834,814)60.0 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Wisconsin (overall)57.0 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSB strain (overall) (N=834,814)52.8 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Brisbane (high risk) (N=302,307)54.3 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Wisconsin (high risk) (N=302,307)51.7 Percentage of subjects
aTIV_Lot 1Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSB strain (high risk) (N=302,307)45.7 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Wisconsin (high risk) (N=302,307)38.8 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Brisbane (overall) (N=834,814)49.1 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Brisbane (high risk) (N=302,307)41.7 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSH3N2/Wisconsin (overall)45.9 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSB strain (high risk) (N=302,307)41.4 Percentage of subjects
aTIV_Lot 2Comparison of HI Antibody Responses of aTIV Versus TIV, in Terms of Percentage of Subjects Achieving Seroconversion Against Heterologous Strains-PPSB strain (overall) (N=834,814)49.3 Percentage of subjects
95% CI: [6.7, 15.9]
95% CI: [7.3, 16.6]
95% CI: [-0.4, 8.4]
95% CI: [4.8, 19.9]
95% CI: [5, 20.2]
95% CI: [-2.1, 11.8]
Secondary

Number of High Risk Subjects With Exacerbation of Preexisting Chronic Disease, Across Vaccine Groups

The number of high risk subjects reporting exacerbation of preexisting chronic conditions (i.e.congestive heart failure, Chronic Obstructive Pulmonary disease (COPD), asthma, hepatic disease, renal insufficiency, and neurological/neuromuscular or metabolic disorders including diabetes mellitus) in aTIV group compared to TIV group.

Time frame: Day 1 through Day 366 post vaccination

Population: Analysis was done on the mFAS (effectiveness) population.

ArmMeasureValue (NUMBER)
aTIV_Lot 1Number of High Risk Subjects With Exacerbation of Preexisting Chronic Disease, Across Vaccine Groups55 participants
aTIV_Lot 2Number of High Risk Subjects With Exacerbation of Preexisting Chronic Disease, Across Vaccine Groups48 participants
Secondary

Number of Subjects Reporting Healthcare Utilization Across Vaccine Groups

The number of subjects with emergency room visits, unscheduled physician visits, and hospitalizations due to community acquired influenza or pneumonia, cardiopulmonary disease, cardiac disease, respiratory or pulmonary disease,in aTIV group compared to TIV group.

Time frame: Day 1 through Day 366 post vaccination

Population: Analysis was done on the mFAS (effectiveness).

ArmMeasureValue (NUMBER)
aTIV_Lot 1Number of Subjects Reporting Healthcare Utilization Across Vaccine Groups275 participants
aTIV_Lot 2Number of Subjects Reporting Healthcare Utilization Across Vaccine Groups289 participants
Secondary

Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine Groups

The number of subjects reporting ILI from three weeks after vaccination to up to one year in aTIV group compared to TIV group, by country.

Time frame: Day 22 through Day 366 post vaccination

Population: Analysis was done on the modified full analysis set (mFAS; effectiveness) population i.e all subjects in the randomized population who received a study vaccination but excluding those who received a non-study vaccine during the follow-up phase.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsColumbia (N=516, 506)119 participants
aTIV_Lot 1Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsPanama (N=108, 102)20 participants
aTIV_Lot 1Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsPhilippines (N=1836,1835)102 participants
aTIV_Lot 1Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsUnited states (N=1037,1055)72 participants
aTIV_Lot 2Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsUnited states (N=1037,1055)76 participants
aTIV_Lot 2Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsColumbia (N=516, 506)97 participants
aTIV_Lot 2Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsPhilippines (N=1836,1835)113 participants
aTIV_Lot 2Number of Subjects Reporting Influenza Like Illness (ILI) Across Vaccine GroupsPanama (N=108, 102)21 participants
Secondary

Number of Subjects Reporting Solicited Adverse Events Following Vaccination

The number of subjects reporting solicited local and systemic adverse events and other adverse events in aTIV group compared to TIV group.

Time frame: Day 1 through Day 7 post vaccination

Population: Analysis was done on the safety set i.e all randomized subjects who received a study vaccination and provided postvaccination safety data.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationArthralgia (N=3492,3486)296 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationAny Local1137 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationHeadache (N= 3495,3486)463 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site pain (N=3495,3485)875 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationFatigue (N= 3494, 3484)466 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site induration (N=3494, 3488)45 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationNausea (N=3492,3482)101 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationAny sytemic1120 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationVomiting (N=3494,3483)48 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site tenderness (N=3495,3483)739 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationDiarrhea (N=3494,3485)168 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationChills (N=3495,3485)235 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationFever (≥ 38°C)122 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site erythema (N=3492, 3485)43 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationAny other210 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationOral Temperature (≥ 40°C)3 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationMyalgia (N=3496,3487)515 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationAnalgesic/Antipyretic used158 participants
aTIV_Lot 1Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site swelling (N=3495,3488)43 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationAnalgesic/Antipyretic used122 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site induration (N=3494, 3488)17 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationAny Local593 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site erythema (N=3492, 3485)18 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site tenderness (N=3495,3483)391 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site swelling (N=3495,3488)15 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationInjection site pain (N=3495,3485)425 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationAny sytemic902 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationChills (N=3495,3485)163 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationMyalgia (N=3496,3487)339 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationArthralgia (N=3492,3486)272 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationHeadache (N= 3495,3486)391 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationFatigue (N= 3494, 3484)361 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationNausea (N=3492,3482)98 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationVomiting (N=3494,3483)59 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationDiarrhea (N=3494,3485)158 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationFever (≥ 38°C)116 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationOral Temperature (≥ 40°C)0 participants
aTIV_Lot 2Number of Subjects Reporting Solicited Adverse Events Following VaccinationAny other165 participants
Secondary

Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous Strains

The percentage of subjects demonstrating seroconversion in HI titers against homologous and heterologous strains, at six months (day 181) and one year (day 366) after vaccination with either aTIV or TIV. Seroconversion is defined as prevaccination HI titer \<10 and postvaccination HI titer ≥40 or at least a 4-fold increase in HI titers from prevaccination HI titer ≥10.

Time frame: Day 181, Day 366 post vaccination

Population: The analysis was done on the FAS (persistence) subset.

ArmMeasureGroupValue (NUMBER)
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH1N1 (homologous) Day 18128.6 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH1N1 (homologous) Day 36618.5 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2 (homologous) Day 18136.0 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2 (homologous) Day 36616.9 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (homologous) Day 1813.7 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (homologous) Day 3662.1 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (heterologous) Day 1812.65 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (heterologous) Day 3664.23 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Brisbane (heterologous) Day 18115.34 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Brisbane(heterologous) Day 3667.94 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 18112.17 Percentage of subjects
aTIV_Lot 1Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 3668.99 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 1818.90 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH1N1 (homologous) Day 18126.2 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (heterologous) Day 1813.14 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH1N1 (homologous) Day 36619.4 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Brisbane(heterologous) Day 3665.24 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2 (homologous) Day 18124.6 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (heterologous) Day 3663.14 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2 (homologous) Day 36612.6 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 3666.28 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (homologous) Day 1812.6 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsH3N2/Brisbane (heterologous) Day 1818.38 Percentage of subjects
aTIV_Lot 2Percentage of Subjects With Seroconversion Upto One Year After Vaccination, Against Homologous and Heterologous StrainsB (homologous) Day 3663.1 Percentage of subjects
Secondary

Persistence of GMTs Against Homologous and Heterologous Strains

The GMTs against homologous and heterologous strains, persisting in subjects at six months (day 181) and one year (day 366) after vaccination with either aTIV or TIV.

Time frame: Day 181, Day 366 post vaccination

Population: The analysis was done on the FAS (persistence) subset population i.e all randomized population only from US sites who received a study vaccination, provided evaluable blood samples at day 1, day 22, day 181, and day 366.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsB (heterologous) Day 18139 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Brisbane(heterologous) Day 36675 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH1N1 (homologous) Day 18171 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH1N1 (homologous) Day 36649 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH3N2 (homologous) Day 181123 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH3N2 (homologous) Day 36670 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsB (homologous) Day 18125 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsB (homologous) Day 36621 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsB (heterologous) Day 36638 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Brisbane (heterologous) Day 181100 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 181228 Titers
aTIV_Lot 1Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 366190 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Brisbane(heterologous) Day 36672 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsB (homologous) Day 36620 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsB (heterologous) Day 18138 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH1N1 (homologous) Day 18168 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 366182 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH1N1 (homologous) Day 36652 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsB (heterologous) Day 36640 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH3N2 (homologous) Day 18191 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Wisconsin (heterologous) Day 181194 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH3N2 (homologous) Day 36654 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsH3N2/Brisbane (heterologous) Day 18181 Titers
aTIV_Lot 2Persistence of GMTs Against Homologous and Heterologous StrainsB (homologous) Day 18122 Titers

Source: ClinicalTrials.gov · Data processed: Mar 20, 2026