Phase 3 Safety and Immunogenicity Study of aQIV in Elderly Adults

Sponsor
Seqirus (Industry)
Overall Status
Completed
CT.gov ID
NCT03314662
Collaborator
(none)
1,778
20
3
7
88.9
12.8

Study Details

Study Description

Brief Summary

This phase 3 study is a randomized, double-blinded, comparator controlled, parallel-group, multicenter study of aQIV versus the US-licensed 2017-2018 adjuvanted trivalent influenza vaccine (aTIV-1, Fluad), and versus an adjuvanted trivalent influenza vaccine (aTIV-2), containing the alternate B strain.

Condition or Disease Intervention/Treatment Phase
  • Biological: MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV)
  • Biological: Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1)
  • Biological: MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2)
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
1778 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Masking Description:
The trial is designed as a double-blind study
Primary Purpose:
Prevention
Official Title:
A Phase 3, Randomized, Double-Blind, Controlled, Multicenter, Clinical Study to Evaluate Safety and Immunogenicity of an MF59-Adjuvanted Quadrivalent Subunit Influenza Vaccine in Comparison With an MF59-Adjuvanted Trivalent Subunit Influenza Vaccine and an MF59-Adjuvanted Trivalent Subunit Influenza Vaccine Containing the Alternate B Strain, in Adults Aged 65 Years and Above
Actual Study Start Date :
Oct 17, 2017
Actual Primary Completion Date :
Dec 11, 2017
Actual Study Completion Date :
May 17, 2018

Arms and Interventions

Arm Intervention/Treatment
Experimental: aQIV

MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine.

Biological: MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV)
The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines.

Experimental: aTIV-1

Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine.

Biological: Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1)
The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines.

Experimental: aTIV-2

MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine.

Biological: MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2)
The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain).

Outcome Measures

Primary Outcome Measures

  1. Immunogenicity Endpoint: The Geometric Mean Titer (GMT) and GMT Ratio for the Four Strains Included in the Vaccine, Non-inferiority Analysis. [Day 22]

    The GMT of the post-vaccination (Day 22) hemagglutination inhibition (HI) titer. The GMT ratio was defined as the GMT for aTIV-1 (or aTIV-2) over the GMT for aQIV for all of the four strains.

  2. Immunogenicity Endpoint: The Difference Between the Seroconversion Rate (SCR) for the Four Strains Included in the Vaccine, Non-inferiority Analysis [Day 22]

    The SCR is defined as the percentage of subjects with either a pre-vaccination HI titer < 1:10 and a post-vaccination HI titer >= 1:40 or a pre-vaccination HI titer >= 1:10 and a >= 4-fold increase in post-vaccination HI titer. The SCR Difference is defined as the difference between the SCR of post- vaccination (Day 22) HI titer for aTIV-1 (or aTIV-2) and the SCR of post-vaccination (Day 22) HI titer for aQIV. aTIV-1 and aTIV-2 vaccine groups are pooled for the analysis of A-H1N1 and A-H3N2 strains. For B/Victoria TIV=TIV-1. For B/Yamagata TIV=TIV-2.

  3. Immunogenicity Endpoint: The Percentage of Subjects Achieving SCR for Hemagglutination Inhibition (HI) Antibody for the Four Strains Included in the Vaccine. [Day 22]

    The percentage of subjects vaccinated with aQIV achieving SCR at Day 22 was assessed for each of the 4 strains. SCR was defined as the percentage of subjects with either a pre-vaccination HI titer <1:10 and a post-vaccination HI titer ≥1:40 or a pre-vaccination HI titer ≥1:10 and a ≥4-fold increase in post-vaccination HI titer. Assessment criteria was considered fulfilled if the lower bound of the two-sided 95% confidence interval for the percentage of subjects achieving SCR for HI antibody should meet or exceed 30%.

  4. Immunogenicity Endpoint: The Percent of Subjects Achieving an HI Antibody Titer ≥ 1:40 for the Four Strains Included in the Vaccines. [Day 22]

    The percentage of subjects vaccinated with aQIV achieving HI antibody titers ≥ 1:40 at Day 22 was assessed for each of the 4 strains. Assessment criteria was considered fulfilled if the lower bound of the two-sided 95% confidence interval for the percentage of subjects achieving a post-vaccination HI antibody titer ≥ 1:40 should meet or exceed 60%.

Secondary Outcome Measures

  1. Immunogenicity Endpoint: Geometric Mean Titers (GMT) Against Homologous Strains [Day 1 and Day 22]

    For the assessment of GMTs using HI assay, aTIV-1 and aTIV-2 vaccine groups were pooled for the analysis of A-H1N1 and A-H3N2 strains. aTIV-1 and aTIV-2 vaccine groups are pooled for the analysis of A-H1N1 and A-H3N2 strains. For B-Victoria TIV=aTIV-1. For B-Yamagata TIV=aTIV-2. The immunologic superiority in HI antibody responses for the alternate B strain (eg, the influenza B strain included in the aQIV but not in the aTIV formulation) were assessed for each aTIV separately, using the GMT ratio (aTIV/aQIV) at Day 22.

  2. Immunogenicity Endpoint: Geometric Mean Ratio (GMR) of Post Vaccination HI Titer Over the Pre-vaccination HI Titer Against Homologous Strains [Day 22/Day 1]

    The GMR was assessed as the postvaccination HI titer divided by the prevaccination HI titer (Day 22/Day 1). aTIV-1 and aTIV-2 vaccine groups were pooled for the analysis of A-H1N1 and A-H3N2 strains. For B-Victoria TIV=aTIV-1. For B-Yamagata TIV=aTIV-2.

  3. Immunogenicity Endpoint: The Percentage of Subjects With a Titer ≥1:40 Against Homologous Strains [Day 1 and Day 22]

    The percentage of subjects with HI titer of ≥1:40 at Day 1 (prevaccination) and Day 22 (postvaccination) was assessed for homologous strains. aTIV-1 and aTIV-2 vaccine groups are pooled for the analysis of A-H1N1 and A-H3N2 strains. For B/Victoria TIV=TIV-1. For B/Yamagata TIV=TIV-2.

  4. Immunogenicity Endpoint: The Percentage of Subjects With SCR Against Homologous Strains [Day 22]

    The SCR was defined as the percentage of subjects with either a prevaccination HI titer <1:10 and a postvaccination HI titer ≥1:40 or a prevaccination HI titer ≥1:10 and a ≥4-fold increase in postvaccination HI titer. For assessment if SCR using HI assay, aTIV-1 and aTIV-2 vaccine groups were pooled for the analysis of A-H1N1 and A-H3N2 strains. For B-Victoria TIV=aTIV-1. For B-Yamagata TIV=aTIV-2. The immunologic superiority in HI antibody responses for the alternate B strain (eg, the influenza B strain included in the aQIV but not in the aTIV formulation) were assessed for each aTIV separately, using the difference in SCR (aTIV-aQIV) at Day 22.

  5. Safety Endpoint: Number of Subjects With Solicited Local and Systemic Adverse Events (AEs) Following Vaccination [Day 1 through Day 7]

    Safety of vaccination was assessed in terms of percentage of subjects reporting solicited AEs up to 7 days after vaccination.

  6. Safety Endpoint: Number of Subjects With Unsolicited AEs [Day 1 through Day 22]

    Safety of vaccination was assessed in terms of percentage of subjects reporting unsolicited AEs up to 21 days after vaccination.

  7. Safety Endpoint: Number of Subjects With Serious AEs (SAEs), AEs Leading to Withdrawal From the Study, New Onset of Chronic Diseases (NOCDs) and AEs of Special Interest (AESIs) [Day 1 through Day 181]

    Safety of vaccination was assessed in terms of percentage of subjects reporting SAEs, AEs leading to withdrawal, NOCDs, and AESIs and medically attended AE up to 180 days after vaccination.

Eligibility Criteria

Criteria

Ages Eligible for Study:
65 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • Males and females ≥ 65 years old who are healthy or have co-morbidities

  • Individuals who or whose legal representative(s) have voluntarily given written consent after the nature of the study has been explained according to local regulatory requirements, prior to study entry

  • Ability to attend all scheduled visits and to comply with study procedures including diary card completion and follow-up

Exclusion Criteria:
  • History of behavioral or cognitive impairment or psychiatric condition

  • Hypersensitivity, including allergy, to any component of vaccines, medicinal products or medical equipment whose use is foreseen in this study

  • Abnormal function of the immune system

  • Receipt of any influenza vaccine within 6 months prior to enrollment in this study, or plan to receive influenza vaccine prior to the Day 22 blood collection

  • Any other clinical condition that, in the opinion of the Investigator, might interfere with the results of the study or pose additional risk to the subject due to participation in the study

Additional eligibility criteria may be discussed by contacting the site.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Coastal Clinical Research, Inc. Mobile Alabama United States 36608
2 Anaheim Clinical Trials Anaheim California United States 92801
3 Paradigm clinical Research Centers, Inc Redding California United States 96001
4 Clinical Research of South Florida, an AMR Company Coral Gables Florida United States 33134
5 Meridan Clinical Research, LLC Savannah Georgia United States 31406
6 Advanced Clinical Research Meridian Idaho United States 83642
7 Johnson County Clin-Trials Lenexa Kansas United States 66219
8 Heartland Research Associates, LLC - An AMR Company Newton Kansas United States 67114
9 Heartland Research Associates, LLC - An AMR Company Wichita Kansas United States 67207
10 Center for Pharmaceutical Research, LLC Kansas City Missouri United States 64114
11 Sundance Clinical Research, LLC Saint Louis Missouri United States 63141
12 Meridian Clinical Research, LLC Omaha Nebraska United States 68134
13 United Medical Associates Binghamton New York United States 13901
14 Rapid Medical Research, Inc. Cleveland Ohio United States 44122
15 Medical Research South Charleston South Carolina United States 29407
16 New Orleans Center for Clinical Research Knoxville Tennessee United States 37920
17 Benchmark Research Fort Worth Texas United States 76135
18 Benchmark Research San Angelo Texas United States 76904
19 Martin Diagnostic Clinic Tomball Texas United States 77375
20 Advanced Clinical Research West Jordan Utah United States 84088

Sponsors and Collaborators

  • Seqirus

Investigators

  • Study Director: Clinical Scientist, Seqirus

Study Documents (Full-Text)

More Information

Publications

None provided.
Responsible Party:
Seqirus
ClinicalTrials.gov Identifier:
NCT03314662
Other Study ID Numbers:
  • V118_20
First Posted:
Oct 19, 2017
Last Update Posted:
Jul 22, 2020
Last Verified:
Jul 1, 2020
Individual Participant Data (IPD) Sharing Statement:
Undecided
Plan to Share IPD:
Undecided
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details 20 study centers in the United States
Pre-assignment Detail All enrolled subjects were randomized.
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine.The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine.The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine.The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain).
Period Title: Overall Study
STARTED 889 445 444
Treated 888 444 444
COMPLETED 881 440 439
NOT COMPLETED 8 5 5

Baseline Characteristics

Arm/Group Title aQIV aTIV-1 aTIV-2 Total
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine.The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain). Total of all reporting groups
Overall Participants 889 445 444 1778
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
72.4
(5.54)
72.4
(5.60)
72.6
(5.46)
72.5
(5.53)
Sex: Female, Male (Count of Participants)
Female
517
58.2%
249
56%
241
54.3%
1007
56.6%
Male
372
41.8%
196
44%
203
45.7%
771
43.4%
Race/Ethnicity, Customized (Count of Participants)
White
814
91.6%
403
90.6%
411
92.6%
1628
91.6%
Black or African American
59
6.6%
37
8.3%
29
6.5%
125
7%
Asian
9
1%
2
0.4%
1
0.2%
12
0.7%
Native Hawaiian or Pacific Islander
1
0.1%
1
0.2%
0
0%
2
0.1%
American Indian or Alaska Native
5
0.6%
0
0%
2
0.5%
7
0.4%
Other
1
0.1%
2
0.4%
1
0.2%
4
0.2%
Race/Ethnicity, Customized (Count of Participants)
Hispanic or Latino
59
6.6%
37
8.3%
31
7%
127
7.1%
Not Hispanic or Latino
827
93%
408
91.7%
410
92.3%
1645
92.5%
Not Reported
2
0.2%
0
0%
2
0.5%
4
0.2%
Unknown
1
0.1%
0
0%
1
0.2%
2
0.1%
Region of Enrollment (participants) [Number]
United States
889
100%
445
100%
444
100%
1778
100%
Height (cm) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [cm]
167.54
(9.350)
167.92
(10.535)
168.38
(10.646)
167.84
(9.990)
Weight (kg) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [kg]
83.24
(19.064)
84.18
(8.963)
84.24
(17.825)
83.73
(18.731)
BMI (kg/m^2) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [kg/m^2]
29.60
(6.157)
29.79
(5.858)
29.69
(5.647)
29.67
(5.956)
Influenza Vaccination History (Count of Participants)
No
129
14.5%
65
14.6%
43
9.7%
237
13.3%
Yes
760
85.5%
380
85.4%
401
90.3%
1541
86.7%
Total Risk Score (Comorbidity) (units on a scale) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [units on a scale]
46.0
(33.50)
44.6
(30.25)
46.5
(34.15)
45.8
(32.88)

Outcome Measures

1. Primary Outcome
Title Immunogenicity Endpoint: The Geometric Mean Titer (GMT) and GMT Ratio for the Four Strains Included in the Vaccine, Non-inferiority Analysis.
Description The GMT of the post-vaccination (Day 22) hemagglutination inhibition (HI) titer. The GMT ratio was defined as the GMT for aTIV-1 (or aTIV-2) over the GMT for aQIV for all of the four strains.
Time Frame Day 22

Outcome Measure Data

Analysis Population Description
The per protocol set (PPS) Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results
Arm/Group Title aQIV aTIV-1 aTIV-2 aTIV-1/aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the 2 influenza type B strains in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-2) contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain). Pooled Subjects Treated with aTIV-1 and aTIV-2
Measure Participants 872 436 433 869
A/H1N1
65.01
NA
NA
75.16
A/H3N2
294.91
NA
NA
293.31
B/Yamagata
24.67
15.96
24.30
NA
B/Victoria
30.78
30.13
21.80
NA
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aTIV/aQIV - for strain A/H1N1
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% confidence interval (CI) for the ratios of GMTs (aTIV/aQIV) do not exceed 1.5
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter GMT ratio (aTIV/aQIV)
Estimated Value 1.16
Confidence Interval (2-Sided) 95%
1.05 to 1.27
Parameter Dispersion Type:
Value:
Estimation Comments GMT ratios (adjusted) obtained from a GLM fitted on log-transformed (base 10) post-vaccination HI titer as outcome variable and covariate terms: treatment, pre-vaccination HI titer (log10 transformed), age, sex, vaccination history, study site
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aTIV/aQIV - performed for strain A/H3N2
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% confidence interval (CI) for the ratios of GMTs (aTIV/aQIV) do not exceed 1.5
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter GMT ratio: (aTIV/aQIV
Estimated Value 0.99
Confidence Interval (2-Sided) 95%
0.90 to 1.09
Parameter Dispersion Type:
Value:
Estimation Comments GMT ratios (adjusted) obtained from a GLM fitted on log-transformed (base 10) post-vaccination HI titer as outcome variable and covariate terms: treatment, pre-vaccination HI titer (log 10 transformed), age, sex, vaccination history, study site
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aQIV/aTIV - performed for strain B/Yamagata
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% confidence interval (CI) for the ratios of GMTs (aTIV/aQIV) do not exceed 1.5.
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter GMT ratio: aTIV/aQIV
Estimated Value 0.99
Confidence Interval (2-Sided) 95%
0.90 to 1.08
Parameter Dispersion Type:
Value:
Estimation Comments GMT ratios (adjusted) obtained from a GLM fitted on log-transformed (base 10) post-vaccination HI titer as outcome variable and covariate terms: treatment, pre-vaccination HI titer (log10 transformed), age, sex, vaccination history, study site
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aQIV/aTIV - performed for strain B/Victoria
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% confidence interval (CI) for the ratios of GMTs (aTIV/aQIV) do not exceed 1.5.
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter GMT ratio: (aTIV/aQIV)]
Estimated Value 0.98
Confidence Interval (2-Sided) 95%
0.89 to 1.08
Parameter Dispersion Type:
Value:
Estimation Comments GMT ratios (adjusted) obtained from a GLM fitted on log-transformed (base 10) post-vaccination HI titer as outcome variable and covariate terms: treatment, pre-vaccination HI titer (log10 transformed), age, sex, vaccination history, study site
2. Primary Outcome
Title Immunogenicity Endpoint: The Difference Between the Seroconversion Rate (SCR) for the Four Strains Included in the Vaccine, Non-inferiority Analysis
Description The SCR is defined as the percentage of subjects with either a pre-vaccination HI titer < 1:10 and a post-vaccination HI titer >= 1:40 or a pre-vaccination HI titer >= 1:10 and a >= 4-fold increase in post-vaccination HI titer. The SCR Difference is defined as the difference between the SCR of post- vaccination (Day 22) HI titer for aTIV-1 (or aTIV-2) and the SCR of post-vaccination (Day 22) HI titer for aQIV. aTIV-1 and aTIV-2 vaccine groups are pooled for the analysis of A-H1N1 and A-H3N2 strains. For B/Victoria TIV=TIV-1. For B/Yamagata TIV=TIV-2.
Time Frame Day 22

Outcome Measure Data

Analysis Population Description
The per protocol set (PPS) Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results.
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the 2 influenza type B strains in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-2) contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain)
Measure Participants 872 436 433
A/H1N1
35.21
39.45
37.41
A/H3N2
39.33
39.70
37.18
B/Yamagata
16.4
NA
15.47
B/Victoria
13.42
12.16
NA
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aTIV minus aQIV - for strain A/H1N1
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% CI for the differences between the SCRs (aTIV - aQIV) do not exceed 10% for each of the four strains
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter SCR difference (aTIV minus aQIV)
Estimated Value 3.23
Confidence Interval (2-Sided) 95%
-1.30 to 7.76
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aTIV minus aQIV - for strain A/H3N2
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% CI for the differences between the SCRs (aTIV - aQIV) do not exceed 10% for each of the four strains
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter SCR difference (aTIV minus aQIV)
Estimated Value 0.37
Confidence Interval (2-Sided) 95%
-4.23 to 4.96
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 3
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aTIV minus aQIV - for strain B-Yamagata
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% CI for the differences between the SCRs (aTIV - aQIV) do not exceed 10% for each of the four strains
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter SCR difference (aTIV minus aQIV)]
Estimated Value -0.93
Confidence Interval (2-Sided) 95%
-5.13 to 3.27
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 4
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1, aTIV-2
Comments Comparison Group Selection: aTIV minus aQIV - for strain B-Victoria
Type of Statistical Test Non-Inferiority
Comments aQIV was considered non-inferior to aTIV-1 or aTIV-2 if the upper bound of the two-sided 95% CI for the differences between the SCRs (aTIV - aQIV) do not exceed 10% for each of the four strains
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter Other [SCR difference (aTIV minus aQIV)]
Estimated Value -1.26
Confidence Interval (2-Sided) 95%
-5.07 to 2.55
Parameter Dispersion Type:
Value:
Estimation Comments
3. Primary Outcome
Title Immunogenicity Endpoint: The Percentage of Subjects Achieving SCR for Hemagglutination Inhibition (HI) Antibody for the Four Strains Included in the Vaccine.
Description The percentage of subjects vaccinated with aQIV achieving SCR at Day 22 was assessed for each of the 4 strains. SCR was defined as the percentage of subjects with either a pre-vaccination HI titer <1:10 and a post-vaccination HI titer ≥1:40 or a pre-vaccination HI titer ≥1:10 and a ≥4-fold increase in post-vaccination HI titer. Assessment criteria was considered fulfilled if the lower bound of the two-sided 95% confidence interval for the percentage of subjects achieving SCR for HI antibody should meet or exceed 30%.
Time Frame Day 22

Outcome Measure Data

Analysis Population Description
The PPS Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results.
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the 2 influenza type B strains in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-2) contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain)
Measure Participants 872 436 433
A/H1N1
35.21
39.45
37.41
A/H3N2
39.33
39.70
37.18
B/Yamagata
16.40
NA
15.47
B/Victoria
13.42
12.16
NA
4. Primary Outcome
Title Immunogenicity Endpoint: The Percent of Subjects Achieving an HI Antibody Titer ≥ 1:40 for the Four Strains Included in the Vaccines.
Description The percentage of subjects vaccinated with aQIV achieving HI antibody titers ≥ 1:40 at Day 22 was assessed for each of the 4 strains. Assessment criteria was considered fulfilled if the lower bound of the two-sided 95% confidence interval for the percentage of subjects achieving a post-vaccination HI antibody titer ≥ 1:40 should meet or exceed 60%.
Time Frame Day 22

Outcome Measure Data

Analysis Population Description
The PPS Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results.
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the 2 influenza type B strains in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-2) contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain)
Measure Participants 872 436 433
A/H1N1
69.38
71.79
68.82
A/H3N2
93.92
94.72
94.92
B/Yamagata
32.80
21.79
36.95
B/Victoria
38.19
36.93
24.48
5. Secondary Outcome
Title Immunogenicity Endpoint: Geometric Mean Titers (GMT) Against Homologous Strains
Description For the assessment of GMTs using HI assay, aTIV-1 and aTIV-2 vaccine groups were pooled for the analysis of A-H1N1 and A-H3N2 strains. aTIV-1 and aTIV-2 vaccine groups are pooled for the analysis of A-H1N1 and A-H3N2 strains. For B-Victoria TIV=aTIV-1. For B-Yamagata TIV=aTIV-2. The immunologic superiority in HI antibody responses for the alternate B strain (eg, the influenza B strain included in the aQIV but not in the aTIV formulation) were assessed for each aTIV separately, using the GMT ratio (aTIV/aQIV) at Day 22.
Time Frame Day 1 and Day 22

Outcome Measure Data

Analysis Population Description
The PPS Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results.
Arm/Group Title aQIV aTIV-1 aTIV-2 aTIV-1/aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain). Pooled Subjects Treated with aTIV-1 and aTIV-2.
Measure Participants 872 436 433 869
A/H1N1 Day 1
19.07
NA
NA
18.77
A/H1N1 Day 22
57.07
NA
NA
63.73
A/H3N2 Day 1
73.27
NA
NA
71.83
A/H3N2 Day 22
245.85
NA
NA
236.27
B/Yamagata Day 1
10.41
NA
10.76
NA
B/Yamagata Day 22
21.15
NA
20.74
NA
B/Victoria Day 1
14.15
15.18
NA
NA
B/Victoria Day 22
24.91
25.54
NA
NA
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1
Comments B/Yamagata strain: GMT Ratio (aTIV/aQIV)
Type of Statistical Test Superiority
Comments Superiority of aQIV vs. aTIV-1 for the alternate B strain was assessed using the GMT ratio (GMTaTIV/GMTaQIV); Superiority was declared if the upper limit of the two-sided 95% CI for the GMT ratio (aTIV/aQIV) was <1. The superiority comparison was based on the Full Analysis Set (FAS) Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22.
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter GMT ratio
Estimated Value 0.64
Confidence Interval (2-Sided) 95%
0.58 to 0.70
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-2
Comments B/Victoria Strain: GMT Ratio (aTIV/aQIV)
Type of Statistical Test Superiority
Comments Superiority of aQIV vs. aTIV-2 for the alternate B strain was assessed using the GMT ratio (GMTaTIV/GMTaQIV); Superiority was declared if the upper limit of the two-sided 95% CI for the GMT ratio (aTIV/aQIV) was <1. The superiority comparison was based on the FAS Immunogenicity.
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter GMT ratio
Estimated Value 0.71
Confidence Interval (2-Sided) 95%
0.64 to 0.78
Parameter Dispersion Type:
Value:
Estimation Comments
6. Secondary Outcome
Title Immunogenicity Endpoint: Geometric Mean Ratio (GMR) of Post Vaccination HI Titer Over the Pre-vaccination HI Titer Against Homologous Strains
Description The GMR was assessed as the postvaccination HI titer divided by the prevaccination HI titer (Day 22/Day 1). aTIV-1 and aTIV-2 vaccine groups were pooled for the analysis of A-H1N1 and A-H3N2 strains. For B-Victoria TIV=aTIV-1. For B-Yamagata TIV=aTIV-2.
Time Frame Day 22/Day 1

Outcome Measure Data

Analysis Population Description
The PPS Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results.
Arm/Group Title aQIV aTIV-1 aTIV-2 aTIV-1/aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain). Pooled Subjects Treated with aTIV-1 and aTIV-2.
Measure Participants 872 436 433 869
A/H1N1
2.99
NA
NA
3.40
A/H3N2
3.36
NA
NA
3.29
B/Yamagata
2.03
NA
1.93
NA
B/Victoria
1.76
1.68
NA
NA
7. Secondary Outcome
Title Immunogenicity Endpoint: The Percentage of Subjects With a Titer ≥1:40 Against Homologous Strains
Description The percentage of subjects with HI titer of ≥1:40 at Day 1 (prevaccination) and Day 22 (postvaccination) was assessed for homologous strains. aTIV-1 and aTIV-2 vaccine groups are pooled for the analysis of A-H1N1 and A-H3N2 strains. For B/Victoria TIV=TIV-1. For B/Yamagata TIV=TIV-2.
Time Frame Day 1 and Day 22

Outcome Measure Data

Analysis Population Description
The PPS Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results.
Arm/Group Title aQIV aTIV-1 aTIV-2 aTIV-1/aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain). Pooled Subjects Treated with aTIV-1 and aTIV-2.
Measure Participants 872 436 433 869
A/H1N1 Day 1
33.26
NA
NA
31.07
A/H1N1 Day 22
69.38
NA
NA
70.31
A/H3N2 Day 1
70.64
NA
NA
70.66
A/H3N2 Day 22
93.92
NA
NA
94.82
B/Yamagata Day 1
11.12
NA
11.55
NA
B/Yamagata Day 22
32.80
NA
36.95
NA
B/Victoria Day 1
19.72
22.71
NA
NA
B/Victoria Day 22
38.19
36.93
NA
NA
8. Secondary Outcome
Title Immunogenicity Endpoint: The Percentage of Subjects With SCR Against Homologous Strains
Description The SCR was defined as the percentage of subjects with either a prevaccination HI titer <1:10 and a postvaccination HI titer ≥1:40 or a prevaccination HI titer ≥1:10 and a ≥4-fold increase in postvaccination HI titer. For assessment if SCR using HI assay, aTIV-1 and aTIV-2 vaccine groups were pooled for the analysis of A-H1N1 and A-H3N2 strains. For B-Victoria TIV=aTIV-1. For B-Yamagata TIV=aTIV-2. The immunologic superiority in HI antibody responses for the alternate B strain (eg, the influenza B strain included in the aQIV but not in the aTIV formulation) were assessed for each aTIV separately, using the difference in SCR (aTIV-aQIV) at Day 22.
Time Frame Day 22

Outcome Measure Data

Analysis Population Description
The PPS Immunogenicity comprised all subjects who were randomized, received at least 1 study vaccination, and provided immunogenicity data at Day 1 and Day 22, and who did not have any major protocol deviations that were assessed as potentially impacting on immunogenicity results.
Arm/Group Title aQIV aTIV-1 aTIV-2 aTIV-1/aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain). Pooled Subjects Treated with aTIV-1 and aTIV-2.
Measure Participants 872 436 433 869
A/H1N1
35.21
NA
NA
38.43
A/H3N2
39.33
NA
NA
39.70
B/Yamagata
16.40
NA
15.47
NA
B/Victoria
13.42
12.16
NA
NA
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-1
Comments B/Yamagata Strain: SCR Difference (aTIV-1 - aQIV).
Type of Statistical Test Superiority
Comments Superiority of aQIV vs. aTIV-1 for the alternate B strain was assessed using the difference in SCR (SCRaTIV-SCRaQIV) at Day 22. Superiority was declared if the upper limit of the two-sided 95% CI for the difference in SCRs (aTIV-aQIV) was <0, for both B strains. The superiority comparison was based on the FAS Immunogenicity.
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter SCR difference
Estimated Value -11.96
Confidence Interval (2-Sided) 95%
-15.12 to -8.81
Parameter Dispersion Type:
Value:
Estimation Comments
Statistical Analysis 2
Statistical Analysis Overview Comparison Group Selection aQIV, aTIV-2
Comments B/Victoria Strain: SCR Difference (aTIV-2 - aQIV)
Type of Statistical Test Superiority
Comments Superiority of aQIV vs. aTIV-2 for the alternate B strain was assessed using the difference in SCR (SCRaTIV-SCRaQIV) at Day 22. Superiority was declared if the upper limit of the two-sided 95% CI for the difference in SCRs (aTIV-aQIV) was <0, for both B strains. The superiority comparison was based on the FAS Immunogenicity.
Statistical Test of Hypothesis p-Value
Comments
Method
Comments
Method of Estimation Estimation Parameter SCR difference
Estimated Value -10.82
Confidence Interval (2-Sided) 95%
-13.54 to -8.11
Parameter Dispersion Type:
Value:
Estimation Comments
9. Secondary Outcome
Title Safety Endpoint: Number of Subjects With Solicited Local and Systemic Adverse Events (AEs) Following Vaccination
Description Safety of vaccination was assessed in terms of percentage of subjects reporting solicited AEs up to 7 days after vaccination.
Time Frame Day 1 through Day 7

Outcome Measure Data

Analysis Population Description
The Solicited Safety Set consists of all subjects in the FAS who received at least one dose or partial dose of study vaccine and have provided any evaluable follow-up safety data (solicited AE data).
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain).
Measure Participants 883 439 438
Any local solicited AE
385
43.3%
170
38.2%
167
37.6%
Any systemic solicited AE
231
26%
107
24%
110
24.8%
10. Secondary Outcome
Title Safety Endpoint: Number of Subjects With Unsolicited AEs
Description Safety of vaccination was assessed in terms of percentage of subjects reporting unsolicited AEs up to 21 days after vaccination.
Time Frame Day 1 through Day 22

Outcome Measure Data

Analysis Population Description
The Overall Safety Set consists of all subjects in the FAS who received at least one dose or partial dose of study vaccine and have provided any evaluable follow-up safety data.
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain).
Measure Participants 888 444 444
Count of Participants [Participants]
136
15.3%
50
11.2%
68
15.3%
11. Secondary Outcome
Title Safety Endpoint: Number of Subjects With Serious AEs (SAEs), AEs Leading to Withdrawal From the Study, New Onset of Chronic Diseases (NOCDs) and AEs of Special Interest (AESIs)
Description Safety of vaccination was assessed in terms of percentage of subjects reporting SAEs, AEs leading to withdrawal, NOCDs, and AESIs and medically attended AE up to 180 days after vaccination.
Time Frame Day 1 through Day 181

Outcome Measure Data

Analysis Population Description
The Overall Safety Set consists of all subjects in the FAS who received at least one dose or partial dose of study vaccine and have provided any evaluable follow-up safety data.
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain).
Measure Participants 888 444 444
SAEs
37
4.2%
28
6.3%
18
4.1%
AEs leading to withdrawal
0
0%
0
0%
0
0%
NOCDs
23
2.6%
16
3.6%
14
3.2%
AESIs
1
0.1%
1
0.2%
0
0%

Adverse Events

Time Frame SAEs and unsolicited AEs: Day 1 through 181; Solicited AEs: Day 1 through 7
Adverse Event Reporting Description
Arm/Group Title aQIV aTIV-1 aTIV-2
Arm/Group Description MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV) contains each of the 2 influenza type A strains and each of the two influenza type B strains in the vaccine. MF59-adjuvanted Quadrivalent Subunit Inactivated Egg-derived Influenza Vaccine (aQIV): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for quadrivalent vaccines. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1) contains each of the 2 influenza type A strains and one influenza type B strain in the vaccine. Licensed MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine (aTIV-1): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine contains each of the 2 influenza type A strains and alternate influenza type B strain in the vaccine. MF59-adjuvanted Trivalent Subunit Inactivated Egg-derived Influenza Vaccine Containing the Alternate B Strain (aTIV-2): The strain composition is that recommended by the World Health Organization for the 2017-2018 Northern Hemisphere influenza season (WHO, 2017) for trivalent vaccines except the B strain present in this vaccine is the second/alternate B strain recommended for inclusion in quadrivalent vaccines (ie, Alternate B strain).
All Cause Mortality
aQIV aTIV-1 aTIV-2
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 2/888 (0.2%) 0/444 (0%) 0/444 (0%)
Serious Adverse Events
aQIV aTIV-1 aTIV-2
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 37/888 (4.2%) 28/444 (6.3%) 18/444 (4.1%)
Blood and lymphatic system disorders
Anaemia 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Thrombocytopenia 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Cardiac disorders
Coronary artery disease 1/888 (0.1%) 1/444 (0.2%) 2/444 (0.5%)
Atrial fibrillation 1/888 (0.1%) 0/444 (0%) 1/444 (0.2%)
Angina pectoris 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Angina unstable 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Arteriosclerosis coronary artery 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Myocardial infarction 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Sinus node dysfunction 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Ear and labyrinth disorders
Vertigo 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Gastrointestinal disorders
Abdominal pain 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Diverticular perforation 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Enteritis 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Gastrointestinal perforation 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Gastrooesophageal reflux disease 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Haematochezia 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Ileus paralytic 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Intestinal obstruction 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Large intestinal obstruction 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Pancreatitis acute 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Upper gastrointestinal haemorrhage 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
General disorders
Death 2/888 (0.2%) 0/444 (0%) 0/444 (0%)
Asthenia 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Chest pain 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Non-cardiac chest pain 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Hepatobiliary disorders
Cholelithiasis 0/888 (0%) 1/444 (0.2%) 1/444 (0.2%)
Cholangitis acute 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Hepatic failure 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Infections and infestations
Pneumonia 7/888 (0.8%) 4/444 (0.9%) 1/444 (0.2%)
Influenza 1/888 (0.1%) 0/444 (0%) 2/444 (0.5%)
Sepsis 1/888 (0.1%) 1/444 (0.2%) 0/444 (0%)
Abscess intestinal 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Cellulitis 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Pneumonia bacterial 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Pyelonephritis 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Respiratory syncytial virus infection 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Urinary tract infection 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Viral pericarditis 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Injury, poisoning and procedural complications
Femur fracture 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Humerus fracture 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Lower limb fracture 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Overdose 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Procedural dizziness 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Road traffic accident 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Scapula fracture 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Skin abrasion 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Spinal compression fracture 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Subdural haematoma 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Metabolism and nutrition disorders
Hyperglycaemia 1/888 (0.1%) 1/444 (0.2%) 0/444 (0%)
Dehydration 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Musculoskeletal and connective tissue disorders
Osteoarthritis 3/888 (0.3%) 3/444 (0.7%) 0/444 (0%)
Lumbar spinal stenosis 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Spinal column stenosis 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Bladder cancer 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Breast cancer 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Breast cancer in situ 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Non-small cell lung cancer 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Ovarian cancer stage IV 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Pituitary tumour benign 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Skin cancer 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Nervous system disorders
Carotid artery stenosis 1/888 (0.1%) 2/444 (0.5%) 0/444 (0%)
Amyotrophic lateral sclerosis 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Encephalopathy 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Ischaemic cerebral infarction 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Loss of consciousness 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Presyncope 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Seizure 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Syncope 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Psychiatric disorders
Confusional state 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Renal and urinary disorders
Acute kidney injury 1/888 (0.1%) 1/444 (0.2%) 0/444 (0%)
Renal mass 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Respiratory, thoracic and mediastinal disorders
Dyspnoea 0/888 (0%) 1/444 (0.2%) 1/444 (0.2%)
Chronic obstructive pulmonary disease 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Vascular disorders
Thrombosis 0/888 (0%) 1/444 (0.2%) 1/444 (0.2%)
Accelerated hypertension 0/888 (0%) 1/444 (0.2%) 0/444 (0%)
Aortic aneurysm 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Aortic dissection 1/888 (0.1%) 0/444 (0%) 0/444 (0%)
Hypotension 0/888 (0%) 0/444 (0%) 1/444 (0.2%)
Other (Not Including Serious) Adverse Events
aQIV aTIV-1 aTIV-2
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 461/888 (51.9%) 217/444 (48.9%) 215/444 (48.4%)
Gastrointestinal disorders
Diarrhea 48/888 (5.4%) 24/444 (5.4%) 30/444 (6.8%)
General disorders
Redness 188/888 (21.2%) 77/444 (17.3%) 81/444 (18.2%)
Swelling 134/888 (15.1%) 69/444 (15.5%) 64/444 (14.4%)
Pain 275/888 (31%) 125/444 (28.2%) 109/444 (24.5%)
Fatigue 144/888 (16.2%) 67/444 (15.1%) 52/444 (11.7%)
Ecchymosis 69/888 (7.8%) 28/444 (6.3%) 23/444 (5.2%)
Other 48/888 (5.4%) 12/444 (2.7%) 17/444 (3.8%)
Musculoskeletal and connective tissue disorders
Myalgia 71/888 (8%) 34/444 (7.7%) 31/444 (7%)
Arthralgia 80/888 (9%) 37/444 (8.3%) 31/444 (7%)
Nervous system disorders
Headache 105/888 (11.8%) 46/444 (10.4%) 49/444 (11%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.

Results Point of Contact

Name/Title Seqirus Clinical Trial Disclosure Manager
Organization Seqirus
Phone Phone: 1-855-358-8966
Email Seqirus.ClinicalTrials@Seqirus.com
Responsible Party:
Seqirus
ClinicalTrials.gov Identifier:
NCT03314662
Other Study ID Numbers:
  • V118_20
First Posted:
Oct 19, 2017
Last Update Posted:
Jul 22, 2020
Last Verified:
Jul 1, 2020