Safety and Immunogenicity Study of QIVc in Healthy Pediatric Subjects

Sponsor
Seqirus (Industry)
Overall Status
Completed
CT.gov ID
NCT04074928
Collaborator
(none)
2,414
47
2
11.9
51.4
4.3

Study Details

Study Description

Brief Summary

This phase 3 clinical study is a randomized, observer-blind, comparator-controlled, multicenter study of QIVc versus a US-licensed comparator QIV in children 6 months through 47 months of age. The purpose of this study is to demonstrate that vaccination with QIVc elicits an immune response that is noninferior to that of a US-licensed comparator QIV containing the same virus strains, in children 6 months through 47 months of age.

Condition or Disease Intervention/Treatment Phase
  • Biological: QIVc
  • Biological: Comparator QIV
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
2414 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Triple (Participant, Investigator, Outcomes Assessor)
Masking Description:
The trial is designed as an observer-blind study. During the treatment period of the study designated unblinded nurse(s), physician(s), or other qualified health care professional will be responsible for administering the study vaccine to the subjects.
Primary Purpose:
Prevention
Official Title:
A Phase 3, Randomized, Observer-Blind, Multicenter, Noninferiority Study to Evaluate Safety and Immunogenicity of a Cell-Based Quadrivalent Subunit Influenza Virus Vaccine (QIVc) and a United States Licensed Quadrivalent Influenza Virus Vaccine (QIV) in Healthy Subjects 6 Months Through 47 Months
Actual Study Start Date :
Sep 6, 2019
Actual Primary Completion Date :
Sep 3, 2020
Actual Study Completion Date :
Sep 3, 2020

Arms and Interventions

Arm Intervention/Treatment
Experimental: QIVc

Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains

Biological: QIVc
Previously vaccinated subjects received a 0.5 mL intramuscular dose of QIVc on Day 1; not previously vaccinated subjects received a 0.5 mL intramuscular dose of QIVc on Day 1 and Day 29.
Other Names:
  • Flucelvax Quadrivalent
  • Active Comparator: Comparator QIV

    Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains

    Biological: Comparator QIV
    Previously vaccinated subjects received a dose of Comparator QIV on Day 1; not previously vaccinated subjects received a dose of Comparator QIV on Day 1 and Day 29. Subjects 6 months through 35 months of age received a 0.25 mL intramuscular dose of Comparator QIV; subjects 36 months through 47 months of age received a 0.5 mL intramuscular dose of Comparator QIV.
    Other Names:
  • Afluria Quadrivalent
  • Outcome Measures

    Primary Outcome Measures

    1. Immunogenicity Endpoint: Geometric Mean Titer (GMT) and GMT Ratio Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by Hemagglutination Inhibition (HAI) Assay Using Cell-derived Target Viruses [Day 29 for previously vaccinated subjects; Day 57 for not previously vaccinated subjects]

      The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) HAI titer for the Comparator QIV divided by the geometric mean of the postvaccination HAI titer for QIVc.

    2. Immunogenicity Endpoint: Seroconversion Rates (SCR) and Differences in SCR Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by HAI Assay Using Cell-derived Target Viruses [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      The SCR is defined as the percentage of subjects with either a prevaccination HAI titer <1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a ≥4-fold increase in postvaccination HAI titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.

    3. Immunogenicity Endpoint: GMT and GMT Ratio Against the A/H3N2 Vaccine Strain by Microneutralization (MN) Assay Using Cell-derived Target Viruses [Day 29 for previously vaccinated subjects; Day 57 for not previously vaccinated subjects]

      The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) MN titer for the Comparator QIV divided by the geometric mean of the postvaccination MN titer for QIVc.

    4. Immunogenicity Endpoint: SCR and Difference in SCR Against the A/H3N2 Vaccine Strain by MN Assay Using Cell-derived Target Viruses [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      The SCR is defined as the percentage of subjects with either a prevaccination MN titer <1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a ≥4-fold increase in postvaccination MN titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.

    Secondary Outcome Measures

    1. Immunogenicity Endpoint: GMT and GMT Ratio Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by HAI Assay Using Egg-derived Target Viruses [Day 1 and Day 29 for previously vaccinated subjects; Day 1 and Day 57 for not previously vaccinated subjects]

      The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) HAI titer for the Comparator QIV divided by the geometric mean of the postvaccination HAI titer for QIVc.

    2. Immunogenicity Endpoint: SCR and Difference in SCR Against the A/H1N1, B/Victoria and B/ Yamagata Vaccine Strains by HAI Assay Using Egg-derived Target Viruses [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      The SCR is defined as the percentage of subjects with either a prevaccination HAI titer <1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a ≥4-fold increase in postvaccination HAI titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.

    3. Immunogenicity Endpoint: GMT and GMT Ratio Against the A/H3N2 Vaccine Strain by MN Assay Using Egg-derived Target Viruses [Day 1 and Day 29 for previously vaccinated subjects; Day 1 and Day 57 for not previously vaccinated subjects]

      The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) MN titer for the Comparator QIV divided by the geometric mean of the postvaccination MN titer for QIVc.

    4. Immunogenicity Endpoint: SCR and Difference in SCR Against the A/H3N2 Vaccine Strain by MN Assay Using Egg-derived Target Viruses [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      The SCR is defined as the percentage of subjects with either a prevaccination MN titer <1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a ≥4-fold increase in postvaccination MN titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.

    5. Immunogenicity Endpoint: Geometric Mean Ratio (GMR) Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by HAI Assay Using Cell-derived and Egg-derived Target Viruses [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      GMR is defined as the geometric mean of the (within-subject) fold increase in serum HAI GMT postvaccination (Day 29/57) compared to prevaccination (Day 1).

    6. Immunogenicity Endpoint: GMR Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by MN Assay Using Cell-derived and Egg-derived Target Viruses [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      GMR is defined as the geometric mean of the (within-subject) fold increase in serum MN GMT postvaccination (Day 29/57) compared to prevaccination (Day 1).

    7. Immunogenicity Endpoint: GMR Against the A/H3N2 Vaccine Strain by MN Assay Using Cell-derived and Egg-derived Target Viruses [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      GMR is defined as the geometric mean of the (within-subject) fold increase in serum MN GMT postvaccination (Day 29/57) compared to prevaccination (Day 1).

    8. Safety Endpoint: Percentage of Subjects With Solicited Adverse Events (AEs) [Day 1 to Day 7 after each vaccination (Day 1 to Day 7 for previously vaccinated subjects; Day 1 to Day 7 and Day 29 to Day 35 for not previously vaccinated subjects)]

      The percentage of subjects with at least one solicited AE Day 1 through Day 7 after any study vaccination.

    9. Safety Endpoint: Percentage of Subjects With Any Unsolicited AEs [Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects]

      The percentage of subjects with at least one unsolicited AE from Day 1 to Day 29 for previously vaccinated subjects and from Day 1 to Day 57 for not previously vaccinated subjects. Related AEs = considered at least possibly related to study vaccination by the investigator; Severity = based on the greatest severity associated with a preferred term for a reported AE.

    10. Safety Endpoint: Percentage of Subjects With Any Serious Adverse Events (SAEs), New Onset of Chronic Disease (NOCD) or AEs Leading to Withdrawal During the Entire Study Period [Day 1 to Day 181 for previously vaccinated subjects; Day 1 to Day 209 for not previously vaccinated subjects]

      The percentage of subjects with any SAE, NOCD or AE leading to withdrawal during the study period from Day 1 to Day 181 for previously vaccinated subjects or from Day 1 to Day 209 for not previously vaccinated subjects. Definitions: SAEs = AEs defined as any untoward medical occurrence that at any dose resulted in one or more of the following: 1. Death, 2. Life-threatening 3. Required/prolonged hospitalization 4. Persistent or significant disability/incapacity 5. congenital anomaly/or birth defect 6. An important and significant medical event that may not be immediately life threatening or resulting in death or hospitalization but, based on appropriate medical judgment, may jeopardize the subject or may require intervention to prevent one of the other outcomes listed above

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    6 Months to 47 Months
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    • Individuals of 6 through 47 months of age on the day of informed consent.

    • Individuals whose parent(s)/Legally Acceptable Representative (LAR) have voluntarily given written informed consent after the nature of the study has been explained according to local regulatory requirements, prior to study entry.

    • Individuals who can comply with study procedures including follow-up

    • Individual is in generally good health as per the Investigator's medical judgement

    Exclusion Criteria:
    • Acute (severe) febrile illness

    • History of any anaphylaxis, serious vaccine reactions or hypersensitivity, including allergic reactions, to any component of vaccine or medical equipment whose use is foreseen in this study

    • A known history of Guillain-Barre Syndrome or other demyelinating diseases such as encephalomyelitis and transverse myelitis

    • 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

    • Received influenza vaccination or has had documented influenza disease in the last 6 months prior to informed consent.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 84035 CCR Research Mobile Alabama United States 36608
    2 84040 Southland Clnical Research Center Anaheim California United States 92804
    3 84044 Premier Health Research Center Downey California United States 90240
    4 84028 Orange County Research Institute Ontario California United States 91763
    5 84029 Center for Clinical Trials Paramount California United States 90723
    6 84012 Benchmark Research Sacramento California United States 95864
    7 84006 California Research Foundation San Diego California United States 92123-1881
    8 84001 Acevedo Clincal Research Associates Miami Florida United States 33142
    9 84005 Sunshine Research Center Opa-locka Florida United States 33054
    10 84052 Tekton Research Chamblee Georgia United States 30341
    11 84036 Advanced Clinical Research Meridian Idaho United States 83642
    12 84027 Heartland Research Associates El Dorado Kansas United States 67042
    13 84020 Heartland Research Associates Newton Kansas United States 67114
    14 84014 Heartland Research Associates Wichita Kansas United States 67205
    15 84026 Heartland Research Associates Wichita Kansas United States 67207
    16 84041 Kentucky Pediatric/ Adult Research Bardstown Kentucky United States 40004
    17 84009 Bluegrass Clinical Research Inc. Louisville Kentucky United States 40291
    18 84008 Meridian Clinical Research Baton Rouge Louisiana United States 70806
    19 84046 ACC Pediatric Research Haughton Louisiana United States 71037
    20 84004 Benchmark Research Metairie Louisiana United States 70006
    21 84022 Med Pharmics Metairie Louisiana United States 70006
    22 84053 MedPharmics Gulfport Mississippi United States 39503
    23 84051 Office of Craig A. Spiegel Bridgeton Missouri United States 63044
    24 84016 Center for Pharmaceutical Research Kansas City Missouri United States 64114
    25 84037 Meridian Clinical Research Norfolk Nebraska United States 68701
    26 84017 Meridian Clinical Research Omaha Nebraska United States 68116
    27 84033 Med Pharmics Albuquerque New Mexico United States 87102
    28 84013 Regional Clinical Research Binghamton New York United States 13901
    29 84045 Dayton Clinical Dayton Ohio United States 45406
    30 84003 PriMed Clinical Research Dayton Ohio United States 45419
    31 84015 Meridian Clinical Research Dakota Dunes South Dakota United States 57049
    32 84032 Clinical Research Associates Nashville Tennessee United States 37203
    33 84007 Benchmark Research Austin Texas United States 78705
    34 84023 Ventavia Research Group Fort Worth Texas United States 76104
    35 84042 Universtiy of North Texas Health Science Center Fort Worth Texas United States 76107
    36 84043 Benchmark Research Fort Worth Texas United States 76135
    37 84047 Ventavia Research Group Houston Texas United States 77008
    38 84011 West Houston Clinical Research Houston Texas United States 77055
    39 84019 Ventavia Research Group Keller Texas United States 76248
    40 84021 Benchmark Research San Angelo Texas United States 76904
    41 84002 Tekton Research San Antonio Texas United States 78240
    42 84025 Pediatric Healthcare of NW Houston Tomball Texas United States 77375
    43 84018 Tanner Clinic Layton Utah United States 84041
    44 84050 JBR Clinical Research Group Salt Lake City Utah United States 84107
    45 84048 J. Lewis Research/Foothill Family Clinic South Salt Lake City Utah United States 84121
    46 84031 Advanced Clinical Research West Jordan Utah United States 84088
    47 84039 Pediatric Research of Charlottesville Charlottesville Virginia United States 22902

    Sponsors and Collaborators

    • Seqirus

    Investigators

    • Study Director: Clinical Program Director, Seqirus

    Study Documents (Full-Text)

    More Information

    Publications

    None provided.
    Responsible Party:
    Seqirus
    ClinicalTrials.gov Identifier:
    NCT04074928
    Other Study ID Numbers:
    • V130_10
    • 2020-002785-13
    First Posted:
    Aug 30, 2019
    Last Update Posted:
    Jan 12, 2022
    Last Verified:
    Dec 1, 2021
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Seqirus
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details Subjects were enrolled in the 2019/2020 Northern Hemisphere influenza season from 47 centers in the United States.
    Pre-assignment Detail In total, 2414 subjects were enrolled in the study.
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Period Title: Overall Study
    STARTED 1605 809
    Received Study Vaccine 1597 805
    COMPLETED 1370 710
    NOT COMPLETED 235 99

    Baseline Characteristics

    Arm/Group Title QIVc Comparator QIV Total
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Total of all reporting groups
    Overall Participants 1597 805 2402
    Age (Count of Participants)
    <=18 years
    1597
    100%
    805
    100%
    2402
    100%
    Between 18 and 65 years
    0
    0%
    0
    0%
    0
    0%
    >=65 years
    0
    0%
    0
    0%
    0
    0%
    Age (months) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [months]
    28.1
    (11.54)
    28.2
    (11.63)
    28.1
    (11.57)
    Sex: Female, Male (Count of Participants)
    Female
    794
    49.7%
    399
    49.6%
    1193
    49.7%
    Male
    803
    50.3%
    406
    50.4%
    1209
    50.3%
    Ethnicity (NIH/OMB) (Count of Participants)
    Hispanic or Latino
    434
    27.2%
    226
    28.1%
    660
    27.5%
    Not Hispanic or Latino
    1160
    72.6%
    575
    71.4%
    1735
    72.2%
    Unknown or Not Reported
    3
    0.2%
    4
    0.5%
    7
    0.3%
    Race/Ethnicity, Customized (Count of Participants)
    American Indian or Alaska Native
    11
    0.7%
    11
    1.4%
    22
    0.9%
    Asian
    13
    0.8%
    8
    1%
    21
    0.9%
    Native Hawaiian or Other Pacific Islander
    8
    0.5%
    6
    0.7%
    14
    0.6%
    Black or African American
    455
    28.5%
    209
    26%
    664
    27.6%
    White
    1039
    65.1%
    539
    67%
    1578
    65.7%
    Other
    71
    4.4%
    32
    4%
    103
    4.3%
    Region of Enrollment (Count of Participants)
    United States
    1597
    100%
    805
    100%
    2402
    100%

    Outcome Measures

    1. Primary Outcome
    Title Immunogenicity Endpoint: Geometric Mean Titer (GMT) and GMT Ratio Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by Hemagglutination Inhibition (HAI) Assay Using Cell-derived Target Viruses
    Description The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) HAI titer for the Comparator QIV divided by the geometric mean of the postvaccination HAI titer for QIVc.
    Time Frame Day 29 for previously vaccinated subjects; Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    Per Protocol Set (PPS): All subjects in the FAS who received vaccine on Day 1, provided serology specimens which yielded valid serology assay results from both Day 1 and Day 29 (previously vaccinated subjects) or Day 1 and Day 57 (not previously vaccinated subjects) and for whom there was no protocol deviation that was medically assessed as having potential to impact the immunogenicity results. 1092 and 575 subjects in the QIVc and Comparator QIV groups had HAI assay data for this outcome.
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1092 575
    A/H1N1
    78.0
    57.3
    B/Yamagata
    35.6
    26.0
    B/Victoria
    22.4
    19.6
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, A/H1N1, GMT ratio, Day 29/57 Non-inferiority of the Day 29/57 immune response to the A/H1N1 vaccine strain calculated by GMT ratio (Comparator QIV GMT divided by QIVc GMT)
    Type of Statistical Test Non-Inferiority
    Comments The non-inferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified non-inferiority margin of 1.5 for the Day 29/57 GMT ratio (adjusted analysis).
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 0.73
    Confidence Interval (2-Sided) 95%
    0.645 to 0.836
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, B/Yamagata, GMT ratio, Day 29/57 Non-inferiority of the Day 29/57 immune response to the B/Yamagata vaccine strain calculated by GMT ratio (Comparator QIV GMT divided by QIVc GMT)
    Type of Statistical Test Non-Inferiority
    Comments The non-inferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified non-inferiority margin of 1.5 for the Day 29/57 GMT ratio (adjusted analysis).
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 0.73
    Confidence Interval (2-Sided) 95%
    0.656 to 0.809
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, B/Victoria, GMT ratio, Day 29/57 Non-inferiority of the Day 29/57 immune response to the B/Victoria vaccine strain calculated by GMT ratio (Comparator QIV GMT divided by QIVc GMT)
    Type of Statistical Test Non-Inferiority
    Comments The non-inferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified non-inferiority margin of 1.5 for the Day 29/57 GMT ratio (adjusted analysis).
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 0.88
    Confidence Interval (2-Sided) 95%
    0.791 to 0.972
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    2. Primary Outcome
    Title Immunogenicity Endpoint: Seroconversion Rates (SCR) and Differences in SCR Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by HAI Assay Using Cell-derived Target Viruses
    Description The SCR is defined as the percentage of subjects with either a prevaccination HAI titer <1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a ≥4-fold increase in postvaccination HAI titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1092 and 575 subjects in the QIVc and Comparator QIV groups, respectively, had HAI assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1092 575
    A/H1N1
    58.24
    3.6%
    46.78
    5.8%
    B/Yamagata
    46.52
    2.9%
    31.65
    3.9%
    B/Victoria
    30.31
    1.9%
    24.35
    3%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, A/H1N1, SCR difference, Day 29/57 Non-inferiority of the immune response to the A/H1N1 vaccine strain by SCR difference (Comparator QIV SCR minus QIVc SCR)
    Type of Statistical Test Non-Inferiority
    Comments The non-inferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified non-inferiority margin of 10% for the Day 29/57 SCR difference.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value -11.46
    Confidence Interval (2-Sided) 95%
    -16.447 to -6.423
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, B/Yamagata, SCR difference, Day 29/57 Non-inferiority of the immune response to the B/Yamagata vaccine strain by SCR difference (Comparator QIV SCR minus QIVc SCR)
    Type of Statistical Test Non-Inferiority
    Comments The non-inferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified non-inferiority margin of 10% for the Day 29/57 SCR difference.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value -14.87
    Confidence Interval (2-Sided) 95%
    -19.610 to -9.983
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, B/Victoria, SCR difference, Day 29/57 Non-inferiority of the immune response to the B/Victoria vaccine strain by SCR difference (Comparator QIV SCR minus QIVc SCR)
    Type of Statistical Test Non-Inferiority
    Comments The non-inferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified non-inferiority margin of 10% for the Day 29/57 SCR difference.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value -5.96
    Confidence Interval (2-Sided) 95%
    -10.327 to -1.440
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    3. Primary Outcome
    Title Immunogenicity Endpoint: GMT and GMT Ratio Against the A/H3N2 Vaccine Strain by Microneutralization (MN) Assay Using Cell-derived Target Viruses
    Description The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) MN titer for the Comparator QIV divided by the geometric mean of the postvaccination MN titer for QIVc.
    Time Frame Day 29 for previously vaccinated subjects; Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1078 and 572 subjects in the QIVc and Comparator QIV groups, respectively, had MN assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1078 572
    Geometric Mean (95% Confidence Interval) [Titer]
    23.1
    23.9
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, A/H3N2, GMT ratio, Day 29/57 Non-inferiority of the Day 29/57 immune response to the A/H3N2 vaccine strain calculated by GMT ratio (Comparator QIV GMT divided by QIVc GMT)
    Type of Statistical Test Non-Inferiority
    Comments The noninferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified noninferiority margin of 1.5 for the Day 29/57 GMT ratio (adjusted analysis).
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 1.04
    Confidence Interval (2-Sided) 95%
    0.927 to 1.160
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    4. Primary Outcome
    Title Immunogenicity Endpoint: SCR and Difference in SCR Against the A/H3N2 Vaccine Strain by MN Assay Using Cell-derived Target Viruses
    Description The SCR is defined as the percentage of subjects with either a prevaccination MN titer <1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a ≥4-fold increase in postvaccination MN titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1078 and 572 subjects in the QIVc and Comparator QIV groups, respectively, had MN assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1078 572
    Number (95% Confidence Interval) [Percentage of participants]
    27.64
    1.7%
    30.77
    3.8%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments Non-inferiority, A/H3N2, SCR difference, Day 29/57 Non-inferiority of the immune response to the A/H3N2 vaccine strain by SCR difference (Comparator QIV SCR minus QIVc SCR)
    Type of Statistical Test Non-Inferiority
    Comments The non-inferiority criterion was that the upper limit of the 2-sided 95% CI did not exceed the prespecified non-inferiority margin of 10% for the Day 29/57 SCR difference.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value 3.13
    Confidence Interval (2-Sided) 95%
    -1.443 to 7.812
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    5. Secondary Outcome
    Title Immunogenicity Endpoint: GMT and GMT Ratio Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by HAI Assay Using Egg-derived Target Viruses
    Description The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) HAI titer for the Comparator QIV divided by the geometric mean of the postvaccination HAI titer for QIVc.
    Time Frame Day 1 and Day 29 for previously vaccinated subjects; Day 1 and Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1092 and 575 subjects in the QIVc and Comparator QIV groups, respectively, had HAI assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1092 575
    A/H1N1 Day 1 HAI GMT
    14.0
    13.9
    A/H1N1 Day 29/57 HAI GMT
    92.2
    82.9
    B/Yamagata Day 1 HAI GMT
    6.7
    6.7
    B/Yamagata Day 29/57 HAI GMT
    23.0
    24.7
    B/Victoria Day 1 HAI GMT
    6.1
    6.0
    B/Victoria Day 29/57 HAI GMT
    13.6
    14.8
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments A/H1N1, GMT ratio, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 0.90
    Confidence Interval (2-Sided) 95%
    0.790 to 1.024
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments B/Yamagata, GMT ratio, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 1.08
    Confidence Interval (2-Sided) 95%
    0.968 to 1.195
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments B/Victoria, GMT ratio, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 1.09
    Confidence Interval (2-Sided) 95%
    0.986 to 1.202
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    6. Secondary Outcome
    Title Immunogenicity Endpoint: SCR and Difference in SCR Against the A/H1N1, B/Victoria and B/ Yamagata Vaccine Strains by HAI Assay Using Egg-derived Target Viruses
    Description The SCR is defined as the percentage of subjects with either a prevaccination HAI titer <1:10 and a postvaccination HAI titer ≥1:40, or a prevaccination HAI titer ≥1:10 and a ≥4-fold increase in postvaccination HAI titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1092 and 575 subjects in the QIVc and Comparator QIV groups, respectively, had HAI assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1092 575
    A/H1N1 HAI SCR
    58.52
    3.7%
    56.00
    7%
    B/Yamagata HAI SCR
    38.64
    2.4%
    38.61
    4.8%
    B/Victoria HAI SCR
    19.69
    1.2%
    20.87
    2.6%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments A/H1N1, SCR difference, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value -2.52
    Confidence Interval (2-Sided) 95%
    -7.526 to 2.461
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments B/Yamagata, SCR difference, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value -0.04
    Confidence Interval (2-Sided) 95%
    -4.912 to 4.911
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments B/Victoria, SCR difference, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value 1.18
    Confidence Interval (2-Sided) 95%
    -2.805 to 5.353
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    7. Secondary Outcome
    Title Immunogenicity Endpoint: GMT and GMT Ratio Against the A/H3N2 Vaccine Strain by MN Assay Using Egg-derived Target Viruses
    Description The GMT ratio is defined as the geometric mean of the postvaccination (28 days after last vaccination) MN titer for the Comparator QIV divided by the geometric mean of the postvaccination MN titer for QIVc.
    Time Frame Day 1 and Day 29 for previously vaccinated subjects; Day 1 and Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1079 and 572 subjects in the QIVc and Comparator QIV groups, respectively, had MN assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1079 572
    A/H3N2 Day 1 MN GMT
    12.9
    12.6
    A/H3N2 Day 29/57 MN GMT
    43.4
    44.7
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments A/H3N2, GMT ratio, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter GMT ratio
    Estimated Value 1.03
    Confidence Interval (2-Sided) 95%
    0.914 to 1.165
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    8. Secondary Outcome
    Title Immunogenicity Endpoint: SCR and Difference in SCR Against the A/H3N2 Vaccine Strain by MN Assay Using Egg-derived Target Viruses
    Description The SCR is defined as the percentage of subjects with either a prevaccination MN titer <1:10 and a postvaccination MN titer ≥1:40, or a prevaccination MN titer ≥1:10 and a ≥4-fold increase in postvaccination MN titer. The SCR difference is defined as the Comparator QIV SCR minus the QIVc SCR.
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1079 and 572 subjects in the QIVc and Comparator QIV groups, respectively, had MN assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1079 572
    Number (95% Confidence Interval) [Percentage of participants]
    37.44
    2.3%
    39.34
    4.9%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection QIVc, Comparator QIV
    Comments A/H3N2, SCR difference, Day 29/57
    Type of Statistical Test Other
    Comments No formal statistical testing was planned for this secondary outcome measure.
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter SCR difference
    Estimated Value 1.89
    Confidence Interval (2-Sided) 95%
    -3.006 to 6.856
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    9. Secondary Outcome
    Title Immunogenicity Endpoint: Geometric Mean Ratio (GMR) Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by HAI Assay Using Cell-derived and Egg-derived Target Viruses
    Description GMR is defined as the geometric mean of the (within-subject) fold increase in serum HAI GMT postvaccination (Day 29/57) compared to prevaccination (Day 1).
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1092 and 575 subjects in the QIVc and Comparator QIV groups, respectively, had HAI assay data for this outcome)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1092 575
    A/H1N1 (cell) HAI GMR
    5.34
    3.97
    B/Yamagata (cell) HAI GMR
    4.12
    3.03
    B/Victoria (cell) HAI GMR
    2.65
    2.31
    A/H1N1 (egg) HAI GMR
    5.67
    5.11
    B/Yamagata (egg) HAI GMR
    3.04
    3.27
    B/Victoria (egg) HAI GMR
    2.14
    2.33
    10. Secondary Outcome
    Title Immunogenicity Endpoint: GMR Against the A/H1N1, B/Victoria and B/Yamagata Vaccine Strains by MN Assay Using Cell-derived and Egg-derived Target Viruses
    Description GMR is defined as the geometric mean of the (within-subject) fold increase in serum MN GMT postvaccination (Day 29/57) compared to prevaccination (Day 1).
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (A randomly selected subset of subjects; 195 and 122 subjects in the QIVc and Comparator QIV groups, respectively, had MN assay data for this outcome) The MN assays for A/H1N1, B/Yamagata, and B/Victoria strains were only evaluated for cell-derived target viruses. Data were not collected for egg-derived target viruses.
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 195 122
    A/H1N1 (cell) MN GMR
    5.74
    4.29
    B/Yamagata (cell) MN GMR
    3.14
    2.86
    B/Victoria (cell) MN GMR
    1.88
    1.63
    11. Secondary Outcome
    Title Immunogenicity Endpoint: GMR Against the A/H3N2 Vaccine Strain by MN Assay Using Cell-derived and Egg-derived Target Viruses
    Description GMR is defined as the geometric mean of the (within-subject) fold increase in serum MN GMT postvaccination (Day 29/57) compared to prevaccination (Day 1).
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    PPS (1078 and 572 subjects in the QIVc and Comparator QIV groups, respectively, had MN assay data for the outcome of GMR against the A/H3N2 vaccine strain by MN assay using cell-derived target viruses; 1079 and 572 subjects in the QIVc and Comparator QIV groups, respectively, had data for the outcome of GMR against the A/H3N2 vaccine strain by MN assay using egg-derived target viruses)
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1079 572
    A/H3N2 (cell) MN GMR
    2.11
    2.19
    A/H3N2 (egg) MN GMR
    3.13
    3.22
    12. Secondary Outcome
    Title Safety Endpoint: Percentage of Subjects With Solicited Adverse Events (AEs)
    Description The percentage of subjects with at least one solicited AE Day 1 through Day 7 after any study vaccination.
    Time Frame Day 1 to Day 7 after each vaccination (Day 1 to Day 7 for previously vaccinated subjects; Day 1 to Day 7 and Day 29 to Day 35 for not previously vaccinated subjects)

    Outcome Measure Data

    Analysis Population Description
    Solicited Safety Set, defined as all subjects in the FAS with any solicited AE data.
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1564 784
    Solicited AEs
    940
    58.9%
    491
    61%
    Solicited Local AEs
    656
    41.1%
    350
    43.5%
    Solicited Systemic AEs
    681
    42.6%
    358
    44.5%
    Analgesic/Antipyretic Use
    240
    15%
    136
    16.9%
    13. Secondary Outcome
    Title Safety Endpoint: Percentage of Subjects With Any Unsolicited AEs
    Description The percentage of subjects with at least one unsolicited AE from Day 1 to Day 29 for previously vaccinated subjects and from Day 1 to Day 57 for not previously vaccinated subjects. Related AEs = considered at least possibly related to study vaccination by the investigator; Severity = based on the greatest severity associated with a preferred term for a reported AE.
    Time Frame Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    Unsolicited Safety Set, defined as all subjects in the FAS with any unsolicited AE data.
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1597 805
    Any AE
    418
    26.2%
    207
    25.7%
    Any AE (Mild)
    308
    19.3%
    164
    20.4%
    Any AE (Moderate)
    98
    6.1%
    41
    5.1%
    Any AE (Severe)
    12
    0.8%
    2
    0.2%
    Related AE
    70
    4.4%
    36
    4.5%
    14. Secondary Outcome
    Title Safety Endpoint: Percentage of Subjects With Any Serious Adverse Events (SAEs), New Onset of Chronic Disease (NOCD) or AEs Leading to Withdrawal During the Entire Study Period
    Description The percentage of subjects with any SAE, NOCD or AE leading to withdrawal during the study period from Day 1 to Day 181 for previously vaccinated subjects or from Day 1 to Day 209 for not previously vaccinated subjects. Definitions: SAEs = AEs defined as any untoward medical occurrence that at any dose resulted in one or more of the following: 1. Death, 2. Life-threatening 3. Required/prolonged hospitalization 4. Persistent or significant disability/incapacity 5. congenital anomaly/or birth defect 6. An important and significant medical event that may not be immediately life threatening or resulting in death or hospitalization but, based on appropriate medical judgment, may jeopardize the subject or may require intervention to prevent one of the other outcomes listed above
    Time Frame Day 1 to Day 181 for previously vaccinated subjects; Day 1 to Day 209 for not previously vaccinated subjects

    Outcome Measure Data

    Analysis Population Description
    Unsolicited Safety Set
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    Measure Participants 1597 805
    SAE
    15
    0.9%
    7
    0.9%
    Related SAE
    0
    0%
    0
    0%
    AE leading to study withdrawal
    3
    0.2%
    0
    0%
    NOCD
    22
    1.4%
    13
    1.6%
    Death
    2
    0.1%
    0
    0%

    Adverse Events

    Time Frame SAEs: Day 1 to Day 181 for previously vaccinated subjects; Day 1 to Day 209 for not previously vaccinated subjects Nonserious unsolicited AEs: Day 1 to Day 29 for previously vaccinated subjects; Day 1 to Day 57 for not previously vaccinated subjects Solicited AEs: Day 1 to Day 7 after each vaccination (Day 1 to Day 7 for previously vaccinated subjects; Day 1 to Day 7 and Day 29 to Day 35 for not previously vaccinated subjects)
    Adverse Event Reporting Description SAEs, nonserious unsolicited AEs, and solicited AEs are reported in this Adverse Events section.
    Arm/Group Title QIVc Comparator QIV
    Arm/Group Description Cell-derived Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains Comparator Quadrivalent Influenza Vaccine containing 2 influenza type A strains and 2 influenza type B strains
    All Cause Mortality
    QIVc Comparator QIV
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 2/1597 (0.1%) 0/805 (0%)
    Serious Adverse Events
    QIVc Comparator QIV
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 15/1597 (0.9%) 7/805 (0.9%)
    Gastrointestinal disorders
    Constipation 0/1597 (0%) 1/805 (0.1%)
    Volvulus 1/1597 (0.1%) 0/805 (0%)
    Infections and infestations
    Bronchiolitis 1/1597 (0.1%) 3/805 (0.4%)
    Pneumonia 3/1597 (0.2%) 0/805 (0%)
    Rhinovirus infection 1/1597 (0.1%) 1/805 (0.1%)
    Abscess of eyelid 1/1597 (0.1%) 0/805 (0%)
    Adenoviral encephalitis 1/1597 (0.1%) 0/805 (0%)
    Enterovirus infection 1/1597 (0.1%) 0/805 (0%)
    Metapneumovirus infection 0/1597 (0%) 1/805 (0.1%)
    Pneumonia bacterial 1/1597 (0.1%) 0/805 (0%)
    Respiratory syncytial virus bronchiolitis 1/1597 (0.1%) 0/805 (0%)
    Respiratory syncytial virus infection 1/1597 (0.1%) 0/805 (0%)
    Injury, poisoning and procedural complications
    Road traffic accident 1/1597 (0.1%) 0/805 (0%)
    Metabolism and nutrition disorders
    Dehydration 1/1597 (0.1%) 1/805 (0.1%)
    Musculoskeletal and connective tissue disorders
    Ligamentitis 1/1597 (0.1%) 0/805 (0%)
    Nervous system disorders
    Seizure 2/1597 (0.1%) 0/805 (0%)
    Unresponsive to stimuli 0/1597 (0%) 1/805 (0.1%)
    Respiratory, thoracic and mediastinal disorders
    Acute Respiratory Failure 1/1597 (0.1%) 0/805 (0%)
    Asthma 2/1597 (0.1%) 1/805 (0.1%)
    Other (Not Including Serious) Adverse Events
    QIVc Comparator QIV
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 926/1597 (58%) 490/805 (60.9%)
    Gastrointestinal disorders
    Vomiting/throwing up 106/1564 (6.8%) 49/784 (6.3%)
    Diarrhea/loose stools 280/1564 (17.9%) 128/784 (16.3%)
    General disorders
    Injection site induration 270/1564 (17.3%) 125/784 (15.9%)
    Injection site erythema 403/1564 (25.8%) 193/784 (24.6%)
    Injection site ecchymosis 168/1564 (10.7%) 85/784 (10.8%)
    Injection site tenderness 436/1564 (27.9%) 235/784 (30%)
    Fever (≥38.0°C) 107/1564 (6.8%) 54/784 (6.9%)
    Infections and infestations
    Upper respiratory tract infection 59/1597 (3.7%) 44/805 (5.5%)
    Metabolism and nutrition disorders
    Change of eating habits 272/1564 (17.4%) 138/784 (17.6%)
    Nervous system disorders
    Sleepiness 420/1564 (26.9%) 200/784 (25.5%)
    Psychiatric disorders
    Irritability 436/1564 (27.9%) 232/784 (29.6%)

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

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

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Seqirus Clinical Trial Manager
    Organization Seqirus
    Phone 1-855-358-8966
    Email seqirus.clinicaltrials@Seqirus.com
    Responsible Party:
    Seqirus
    ClinicalTrials.gov Identifier:
    NCT04074928
    Other Study ID Numbers:
    • V130_10
    • 2020-002785-13
    First Posted:
    Aug 30, 2019
    Last Update Posted:
    Jan 12, 2022
    Last Verified:
    Dec 1, 2021