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A Study to Determine the Immunogenicity and Safety Profile of CSL Limited's Influenza Virus Vaccine Compared to a US Licensed Comparator Influenza Virus Vaccine

A Phase IV, Randomized, Observer-Blind, Multi-Center, Non Inferiority Comparison of the Immune Response of CSL Limited's Influenza Virus Vaccine Compared to a US Licensed Inactivated Split-Virion Influenza Vaccine in Adults Aged Greater Than or Equal to 65 Years

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00735475
Enrollment
1268
Registered
2008-08-15
Start date
2008-10-31
Completion date
2009-06-30
Last updated
2018-05-23

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

Conditions

Influenza

Brief summary

The purpose of this study is to determine the immunogenicity and safety profile of CSL Limited's Influenza Virus Vaccine compared to a US Licensed Comparator Influenza Virus Vaccine.

Interventions

BIOLOGICALCSL Limited Influenza Virus Vaccine (Afluria®)

A single 0.5 mL, intramuscular injection in the deltoid region of the arm on day 0.

BIOLOGICALUS Licensed Influenza Virus Vaccine (Fluzone®)

A single 0.5 mL, intramuscular injection in the deltoid region of the arm on day 0.

Sponsors

Seqirus
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

1. Males aged ≥ 65 years or females of non-childbearing potential aged ≥ 65 years ; 2. Written informed consent ; 3. Willingness to provide a blood sample.

Exclusion criteria

1. Known hypersensitivity to a previous dose of influenza vaccine or allergy to eggs, chicken protein, neomycin, polymyxin, or any components of the Study Vaccines; 2. Previous vaccination against influenza in 2008 or 2009 with seasonal trivalent inactivated influenza vaccine; 3. Known history of Guillain-Barré Syndrome; 4. Clinical signs of active infection and/or an oral temperature of greater than or equal to 100 degrees F (37.8 degrees C). 5. Have active or recent and clinically significant gastrointestinal/hepatic, renal, neurological, cardiovascular, respiratory, endocrine disorders or other medical disorders; 6. History of seizures; 7. Confirmed or suspected immunosuppressive condition, or a previously diagnosed immunodeficiency disorder; 8. Clinically significant history of malignancy 9. Current treatment, or treatment with radiotherapy or cytotoxic drugs at any time during the six months prior to administration of the Study Vaccine; 10. Current immunosuppressive or immunomodulative therapy; 11. Administration of immunoglobulins and/or any blood products within the 3 months preceding the administration of the Study Vaccine; 12. Participation in a clinical trial or use of an investigational compound within 30 days prior to receiving the Study Vaccine ; 13. Vaccination with a registered vaccine within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior to receiving the Study Vaccine. 14. Current treatment with warfarin or other anticoagulants; 15. Major congenital defects; 16. Evidence, or history (within the previous 12 months) of drug or alcohol abuse; 17. Unwillingness or inability to comply with the study protocol including completion of adverse event diary cards; 18. History of psychiatric disorders; 19. Resident of long term care facility.

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean Titer 21 Days After the Study Vaccination21 days after vaccination
Percentage of Participants With Seroconversion 21 Days After the Study Vaccination21 days after vaccinationSeroconversion rate was defined as the proportion of participants with a HI titer of less than 1:10 before vaccination achieving a HI antibody titer of 1:40 or more after vaccination, or with a HI titer of 1:10 or more before vaccination achieving a four-fold or greater increase in HI titer after vaccination.

Secondary

MeasureTime frameDescription
Frequency and Intensity of Unsolicited Adverse Events (UAEs)21 days after vaccinationAbbreviation UAE stands for Unsolicited Adverse Event.
Frequency and Intensity of Local and Systemic Solicited Symptoms5 days after vaccination
New Onsets of Chronic Illness180 days after vaccinationA NOCI was defined as the diagnosis of a chronic medical condition where the symptoms commenced or worsened following exposure to the study vaccine and may have included those potentially controllable by medication (e.g., glaucoma, hypertension).
Serious Adverse Events180 days after vaccination
Duration of Local and Systemic Solicited Symptoms5 days after vaccination

Countries

United States

Participant flow

Participants by arm

ArmCount
Afluria® Group
Participants received one dose of the 2008/2009 formulation of Afluria® by intramuscular injection.
630
Fluzone® Group
Participants received one dose of the 2008/2009 formulation of Fluzone® by intramuscular injection.
636
Total1,266

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event01
Overall StudyDeath11
Overall StudyLost to Follow-up33
Overall StudyPhysician Decision01
Overall StudyWithdrawal by Subject45

Baseline characteristics

CharacteristicFluzone® GroupAfluria® GroupTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
636 Participants630 Participants1266 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants0 Participants
Age, Continuous71.7 years
STANDARD_DEVIATION 5.53
71.7 years
STANDARD_DEVIATION 5.56
71.7 years
STANDARD_DEVIATION 5.54
Region of Enrollment
United States
636 participants630 participants1266 participants
Sex: Female, Male
Female
362 Participants364 Participants726 Participants
Sex: Female, Male
Male
274 Participants266 Participants540 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
142 / 630119 / 636
serious
Total, serious adverse events
22 / 63026 / 636

Outcome results

Primary

Geometric Mean Titer 21 Days After the Study Vaccination

Time frame: 21 days after vaccination

Population: Evaluable Population: comprised participants who were vaccinated, provided blood samples before and after vaccination, did not experience a laboratory-confirmed influenza infection, and did not receive a contraindicated medication.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Afluria® GroupGeometric Mean Titer 21 Days After the Study VaccinationH1N1 (A/Brisbane/59/2007)58.60 Titers
Afluria® GroupGeometric Mean Titer 21 Days After the Study VaccinationH3N2 (A/Uruguay/716/2007)377.94 Titers
Afluria® GroupGeometric Mean Titer 21 Days After the Study VaccinationB (B/Florida/4/2006)30.16 Titers
Fluzone® GroupGeometric Mean Titer 21 Days After the Study VaccinationH1N1 (A/Brisbane/59/2007)58.45 Titers
Fluzone® GroupGeometric Mean Titer 21 Days After the Study VaccinationH3N2 (A/Uruguay/716/2007)337.23 Titers
Fluzone® GroupGeometric Mean Titer 21 Days After the Study VaccinationB (B/Florida/4/2006)33.31 Titers
Primary

Percentage of Participants With Seroconversion 21 Days After the Study Vaccination

Seroconversion rate was defined as the proportion of participants with a HI titer of less than 1:10 before vaccination achieving a HI antibody titer of 1:40 or more after vaccination, or with a HI titer of 1:10 or more before vaccination achieving a four-fold or greater increase in HI titer after vaccination.

Time frame: 21 days after vaccination

Population: Evaluable Population: comprised participants who were vaccinated, provided blood samples before and after vaccination, did not experience a laboratory-confirmed influenza infection, and did not receive a contraindicated medication.

ArmMeasureGroupValue (NUMBER)
Afluria® GroupPercentage of Participants With Seroconversion 21 Days After the Study VaccinationH1N1 (A/Brisbane/59/2007)38.6 Percentage of participants
Afluria® GroupPercentage of Participants With Seroconversion 21 Days After the Study VaccinationH3N2 (A/Uruguay/716/2007)69.0 Percentage of participants
Afluria® GroupPercentage of Participants With Seroconversion 21 Days After the Study VaccinationB (B/Florida/4/2006)28.9 Percentage of participants
Fluzone® GroupPercentage of Participants With Seroconversion 21 Days After the Study VaccinationH1N1 (A/Brisbane/59/2007)43.2 Percentage of participants
Fluzone® GroupPercentage of Participants With Seroconversion 21 Days After the Study VaccinationH3N2 (A/Uruguay/716/2007)68.7 Percentage of participants
Fluzone® GroupPercentage of Participants With Seroconversion 21 Days After the Study VaccinationB (B/Florida/4/2006)33.8 Percentage of participants
Secondary

Duration of Local and Systemic Solicited Symptoms

Time frame: 5 days after vaccination

ArmMeasureGroupValue (MEAN)Dispersion
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny pain1.62 DaysStandard Deviation 2.094
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny tenderness2.04 DaysStandard Deviation 2.147
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny redness1.42 DaysStandard Deviation 0.692
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny swelling / induration2.58 DaysStandard Deviation 3.031
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny bruising6.50 DaysStandard Deviation 8.021
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny fever1 DaysStandard Deviation 0
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny headache2.08 DaysStandard Deviation 3.004
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny malaise1.86 DaysStandard Deviation 1.85
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny myalgia2.10 DaysStandard Deviation 3.193
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny chills1.40 DaysStandard Deviation 0.737
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny nausea1.62 DaysStandard Deviation 1.193
Afluria® GroupDuration of Local and Systemic Solicited SymptomsAny vomiting1 DaysStandard Deviation 0
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny nausea1.78 DaysStandard Deviation 0.972
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny pain1.70 DaysStandard Deviation 2.288
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny headache1.70 DaysStandard Deviation 1.782
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny tenderness1.90 DaysStandard Deviation 1.45
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny chills2.29 DaysStandard Deviation 4.341
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny redness2.67 DaysStandard Deviation 1.751
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny malaise2.08 DaysStandard Deviation 1.607
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny swelling / induration2.25 DaysStandard Deviation 2.028
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny vomiting1 DaysStandard Deviation 0
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny bruising10.50 DaysStandard Deviation 9.883
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny myalgia2.65 DaysStandard Deviation 3.961
Fluzone® GroupDuration of Local and Systemic Solicited SymptomsAny fever1 DaysStandard Deviation 0
Secondary

Frequency and Intensity of Local and Systemic Solicited Symptoms

Time frame: 5 days after vaccination

Population: Safety Population: comprised all participants who received study vaccine and provided safety follow-up safety data.

ArmMeasureGroupValue (NUMBER)
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny headache8.6 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny swelling / induration7.1 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny myalgia9.0 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny local solicited symptom40.2 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny malaise6.8 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny redness3.0 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny chills2.2 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny pain15.1 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny nausea1.7 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny bruising0.5 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny fever0.5 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny systemic solicited symptom17.6 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny vomiting0.3 Percentage of Participants
Afluria® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny tenderness36.2 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny vomiting0.3 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny local solicited symptom35.7 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny tenderness31.4 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny pain13.8 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny swelling / induration7.9 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny redness0.9 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny systemic solicited symptom17.5 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny headache10.5 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny myalgia7.7 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny malaise6.1 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny chills2.4 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny nausea1.4 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny fever0.6 Percentage of Participants
Fluzone® GroupFrequency and Intensity of Local and Systemic Solicited SymptomsAny bruising0.6 Percentage of Participants
Secondary

Frequency and Intensity of Unsolicited Adverse Events (UAEs)

Abbreviation UAE stands for Unsolicited Adverse Event.

Time frame: 21 days after vaccination

ArmMeasureGroupValue (NUMBER)
Afluria® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants with at least one UAE169 participants
Afluria® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants reported Grade 1 UAE77 participants
Afluria® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants reported Grade 2 UAE57 participants
Afluria® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants reported Grade 3 UAE35 participants
Fluzone® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants reported Grade 3 UAE35 participants
Fluzone® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants with at least one UAE171 participants
Fluzone® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants reported Grade 2 UAE68 participants
Fluzone® GroupFrequency and Intensity of Unsolicited Adverse Events (UAEs)Number of participants reported Grade 1 UAE68 participants
Secondary

New Onsets of Chronic Illness

A NOCI was defined as the diagnosis of a chronic medical condition where the symptoms commenced or worsened following exposure to the study vaccine and may have included those potentially controllable by medication (e.g., glaucoma, hypertension).

Time frame: 180 days after vaccination

Population: Safety Population: comprised all participants who received study vaccine and provided safety follow-up safety data.

ArmMeasureGroupValue (NUMBER)
Afluria® GroupNew Onsets of Chronic IllnessNeoplasms benign, maligant and unspecified2 participants
Afluria® GroupNew Onsets of Chronic IllnessVascular disorders3 participants
Afluria® GroupNew Onsets of Chronic IllnessNervous system disorders0 participants
Afluria® GroupNew Onsets of Chronic IllnessGastrointestinal disorders1 participants
Afluria® GroupNew Onsets of Chronic IllnessNumber of participants with related NOCI0 participants
Afluria® GroupNew Onsets of Chronic IllnessHepatobiliary disorders1 participants
Afluria® GroupNew Onsets of Chronic IllnessEye disorders1 participants
Afluria® GroupNew Onsets of Chronic IllnessMusculoskeletal and connective tissue disorders2 participants
Afluria® GroupNew Onsets of Chronic IllnessPsychiatric disorders1 participants
Afluria® GroupNew Onsets of Chronic IllnessRenal and urinary disorders1 participants
Afluria® GroupNew Onsets of Chronic IllnessCardiac disorders2 participants
Afluria® GroupNew Onsets of Chronic IllnessReproductive system and breast disorders2 participants
Afluria® GroupNew Onsets of Chronic IllnessNumber of participants with at least one NOCI14 participants
Fluzone® GroupNew Onsets of Chronic IllnessReproductive system and breast disorders0 participants
Fluzone® GroupNew Onsets of Chronic IllnessNumber of participants with at least one NOCI11 participants
Fluzone® GroupNew Onsets of Chronic IllnessNumber of participants with related NOCI0 participants
Fluzone® GroupNew Onsets of Chronic IllnessNeoplasms benign, maligant and unspecified3 participants
Fluzone® GroupNew Onsets of Chronic IllnessPsychiatric disorders3 participants
Fluzone® GroupNew Onsets of Chronic IllnessNervous system disorders1 participants
Fluzone® GroupNew Onsets of Chronic IllnessEye disorders0 participants
Fluzone® GroupNew Onsets of Chronic IllnessCardiac disorders0 participants
Fluzone® GroupNew Onsets of Chronic IllnessVascular disorders1 participants
Fluzone® GroupNew Onsets of Chronic IllnessGastrointestinal disorders1 participants
Fluzone® GroupNew Onsets of Chronic IllnessHepatobiliary disorders0 participants
Fluzone® GroupNew Onsets of Chronic IllnessMusculoskeletal and connective tissue disorders2 participants
Fluzone® GroupNew Onsets of Chronic IllnessRenal and urinary disorders0 participants
Secondary

Serious Adverse Events

Time frame: 180 days after vaccination

Population: Safety Population: comprised all participants who received study vaccine and provided safety follow-up safety data.

ArmMeasureGroupValue (NUMBER)
Afluria® GroupSerious Adverse EventsNumber of participants with at least one SAE22 participants
Afluria® GroupSerious Adverse EventsNumber of participants with related SAE0 participants
Fluzone® GroupSerious Adverse EventsNumber of participants with at least one SAE26 participants
Fluzone® GroupSerious Adverse EventsNumber of participants with related SAE0 participants

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