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Safety and Immunogenicity of Trivalent Subunit Inactivated Flu Vaccine Administered to Healthy Children and Adolescents 3 to 17 Years of Age

A Multi-center, Phase III, Randomized, Observer Blind Study to Evaluate the Safety, Tolerability and Immunogenicity of a Trivalent Subunit Inactivated Flu Vaccine in Healthy Children and Adolescents 3 to 17 Years of Age

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01209780
Enrollment
3116
Registered
2010-09-27
Start date
2010-09-30
Completion date
2011-09-30
Last updated
2014-03-11

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

Conditions

Seasonal Influenza

Keywords

seasonal influenza, vaccine

Brief summary

This study will evaluate the safety and immunogenicity in healthy children and adolescents after one or two IM dose(s) of trivalent subunit inactivated flu vaccine.

Interventions

BIOLOGICALTIV

Investigational egg-derived trivalent subunit influenza vaccine.

BIOLOGICALTIVf

US licensed trivalent inactivated subunit influenza vaccine -Fluvirin (Novartis Vaccines and Diagnostics) is approved for use in subjects ≥4 years.

BIOLOGICALComparator TIV

US licensed trivalent subunit inactivated influenza vaccine- Fluzone (Sanofi Pasteur) is approved for use in children \<4 years.

Sponsors

Novartis Vaccines
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
3 Years to 17 Years
Healthy volunteers
Yes

Inclusion criteria

* Males and females aged 3 to 17 years, in good health as determined by medical history, physical examination and clinical judgment of the investigator * Documented consent provided by parents or legal guardians * For individuals 8 years of age and older, informed assent to participate in the study after the nature of the study had been explained to them in terms they could understand * Individuals and parents/guardians who were able to comply with all study procedures and were available for all clinic visits scheduled in the study

Exclusion criteria

* Parents or legal guardians and individuals who are not able to comprehend and to follow all required study procedures for the whole period of the study * Parents or legal guardians and individuals providing assent who do not consent to the retention of the subject's serum samples after study completion * Individuals with behavioral or cognitive impairment or psychiatric disease that, in the opinion of the investigator, may have interfered with the subject's ability to participate in the study * Individuals with history or any illness that, in the opinion of the investigator, might have interfered with the results of the study or posed additional risk to the subjects due to participation in the study * History of any anaphylaxis, serious vaccine reactions, or hypersensitivity to influenza viral proteins, latex, to any excipients, and to eggs (including ovalbumin), chicken protein, influenza viral protein, kanamycin, neomycin sulphate, cetyltrimethylammonium bromide (CTAB), polysorbate 80, neomycin, polymixin, formaldehyde, thimerosal, beta propiolactone, or nonoxynol-9 * History of any serious disease, such as: 1. cancer 2. history of serious chronic, rheumatologic, neurologic and hematologic diseases 3. history of underlying medical condition such as inborn errors of metabolism * Known or suspected impairment/alteration of immune function, including: 1. chronic use of oral steroids within 60 days prior to Visit 1 (use of inhaled, intranasal, or topical corticosteroids is allowed) 2. receipt of immunostimulants within 60 days prior to Visit 1 3. receipt of parenteral immunoglobulin preparation, blood products, and/or plasma derivates within 3 months prior to Visit 1 or planned during the full length of the study 4. HIV infection or HIV-related disease * Pregnant or breast-feeding female and any positive or indeterminate pregnancy test * Received an influenza vaccine within 6 months prior to Visit 1 * Laboratory-confirmed or suspected influenza disease within 6 months prior to Visit 1 * Receipt of another vaccine within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to enrollment in this study * Experienced a fever and/or any acute illness within 3 days prior to each study vaccination

Design outcomes

Primary

MeasureTime frameDescription
Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving SeroconversionDay 22 for non-naive/Day 50 for naive subjectsThe non-inferiority of the antibody responses of investigational TIV compared to control TIV assessed in terms of the percentage of subjects achieving seroconversion, against the three homologous vaccine strains,in children 3 to 8 years of age, at 21 days after last vaccination. Seroconversion was defined as a pre-vaccination haemagglutinin inhibition (HI) titer \<1:10 and post-vaccination HI titer ≥1:40 or as a pre-vaccination HI titer ≥1:10 and at minimum four-fold rise in post-vaccination antibody titer
Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Day 22 for non-naive/Day 50 for naive subjectsThe non-inferiority of the antibody responses of investigational TIV compared to control vaccine assessed in terms of post vaccination GMTs, at 21 days after last vaccination against the three homologous vaccine strains in 3 to 8 year old children.

Secondary

MeasureTime frameDescription
Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 1, Day 29, and Day 50The percentage of 3 to 8 years-old vaccine-naive subjects achieving HI titers ≥40, after receiving two doses of investigational TIV or control vaccine. The time frame of evaluation was 28 days after first (Day 29) and 21 days after second vaccine dose (Day 50). This criterion according to the US (CBER) guideline is met if the lower bound of the two sided 95%CI for percentage of subjects achieving HI titers ≥40 is ≥70%, for each vaccine strain.
Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 29 and Day 50The percentages of 3 to 8 years-old vaccine naive children achieving seroconversion or significant increase in HI antibody titers after receiving two doses of investigational TIV or control vaccine, are reported. The time frame of evaluation was 28 days after first (Day 29) and 21 days after the second dose (Day 50). This criterion, according to the US (CBER) guideline, is met if the lower limit of 95% CI of percentage of subjects achieving seroconversion or significant increase at day 29 and day 50 is ≥40, for each vaccine strain.
Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Day 22 for non-naive/Day 50 for naive subjectsThe percentages of 3 to 8 year old subjects achieving HI titers ≥40 after receiving either one or two doses of investigational TIV or control vaccine, 21 days after last vaccination, are reported. This criterion according to the US (CBER)guideline is met if the lower bound of the two sided 95%CI for percentage of subjects achieving HI titers ≥40, is ≥70%.
Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineDay 1 to 180 (non-naive )/Day 1 to 209 (naive)The number of 3-17 year old children reporting any unsolicited adverse event and any serious adverse event (SAE) after receiving either one or two doses of investigational TIV and control vaccine are reported.
Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineDay 1 to 7 after vaccinationThe number of 3-17 year old children with solicited local and systemic adverse events and other adverse events, after receiving either one or two doses of investigational TIV as compared to control vaccine are reported.
Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control VaccineDay 22 for non-naive/Day 50 for naiveThe percentages of 3 to 8 years-old subjects achieving seroconversion in HI antibody titers after receiving either one or two doses of investigational TIV or control vaccine, at 21 days after last vaccination, are reported. This criterion, according to the US (CBER) guideline, is met if the lower limit of 95% CI of percentage of subjects achieving seroconversion or significant increase at day 22 and day 50 (21 days after last vaccination) is ≥40.

Countries

Colombia, Mexico, Panama, Philippines

Participant flow

Recruitment details

The study was conducted in 13 centers across 4 countries: Mexico, Colombia, Panama and Philippines.

Pre-assignment details

Due to GCP non-compliance at the Mexico site, data of 312 subjects (3-8 year olds) enrolled from this site were excluded from the final immunogenicity and safety analysis. The population was analyzed in the enrolled set.

Participants by arm

ArmCount
TIV (3-8 Years)
The group consisted of naive (who have never received influenza vaccination or had received only one influenza vaccine dose in the same season) and non-naive subjects (who had a record of previous influenza vaccination). The non-naive subjects received one dose and naive subjects received two doses of investigational TIV.
1,042
Control (3-8 Years)
The group \[control (4-8 years) + control (3 to\<4 years)\] consisted of naive (who have never received influenza vaccination or had received only one influenza vaccine dose in the same season) and non-naive subjects (who had a record of previous influenza vaccination). Subjects (4-\<9 years) received TIVf and subjects (3-\<4 years) received comparator TIV. The non-naive subjects received one dose and naive subjects received two doses of vaccine.
533
TIV (9-17 Years)
All subjects received one dose of investigational TIV.
817
Control (9-17 Years)
All subjects received one dose of control TIV (eTIV\_f).
412
Total2,804

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyAdverse Event01000
Overall StudyInappropriate enrollment02001
Overall StudyLost to Follow-up1712394
Overall StudyProtocol Violation01000
Overall StudyWithdrawal by Subject92110

Baseline characteristics

CharacteristicTIV (3-8 Years)Control (3-8 Years)TIV (9-17 Years)Control (9-17 Years)Total
Age, Continuous5.6 years
STANDARD_DEVIATION 1.6
5.6 years
STANDARD_DEVIATION 1.6
12.4 years
STANDARD_DEVIATION 2.4
12.3 years
STANDARD_DEVIATION 2.3
8.6 years
STANDARD_DEVIATION 3.9
Sex: Female, Male
Female
517 Participants269 Participants398 Participants215 Participants1399 Participants
Sex: Female, Male
Male
525 Participants264 Participants419 Participants197 Participants1405 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
657 / 1,039342 / 531385 / 817196 / 412
serious
Total, serious adverse events
14 / 1,0393 / 5314 / 8173 / 412

Outcome results

Primary

Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)

The non-inferiority of the antibody responses of investigational TIV compared to control vaccine assessed in terms of post vaccination GMTs, at 21 days after last vaccination against the three homologous vaccine strains in 3 to 8 year old children.

Time frame: Day 22 for non-naive/Day 50 for naive subjects

Population: Analysis was performed on the per protocol population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Baseline (H1N1 strain, N=917,467)26 Titers
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Day 22 or Day 50 (H1N1 strain,N=917,468)1157 Titers
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Baseline (H3N2 strain)142 Titers
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Day 22 or Day 50 (H3N2 strain, N=917,468)1385 Titers
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Baseline (B strain)12 Titers
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Day 22 or Day 50 (B strain)208 Titers
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Baseline (B strain)13 Titers
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Baseline (H1N1 strain, N=917,467)28 Titers
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Day 22 or Day 50 (H3N2 strain, N=917,468)2032 Titers
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Day 22 or Day 50 (H1N1 strain,N=917,468)1501 Titers
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Day 22 or Day 50 (B strain)195 Titers
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of Post Vaccination Geometric Mean Titers (GMTs)Baseline (H3N2 strain)150 Titers
Comparison: Non-inferiority of investigational TIV to licensed control TIV against A/H1N1 influenza strain95% CI: [1.11, 1.56]
Comparison: Non-inferiority of investigational TIV to licensed control TIV against A/H3N2 influenza strain95% CI: [1.34, 1.64]
Comparison: Non-inferiority of investigational TIV to licensed control TIV against B influenza strain95% CI: [0.85, 1.07]
Primary

Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving Seroconversion

The non-inferiority of the antibody responses of investigational TIV compared to control TIV assessed in terms of the percentage of subjects achieving seroconversion, against the three homologous vaccine strains,in children 3 to 8 years of age, at 21 days after last vaccination. Seroconversion was defined as a pre-vaccination haemagglutinin inhibition (HI) titer \<1:10 and post-vaccination HI titer ≥1:40 or as a pre-vaccination HI titer ≥1:10 and at minimum four-fold rise in post-vaccination antibody titer

Time frame: Day 22 for non-naive/Day 50 for naive subjects

Population: Analysis was done on per protocol population i.e-all subjects who correctly received study vaccinations,provided evaluable serum samples at the relevant time points, and had no major protocol violation as defined prior to unblinding.

ArmMeasureGroupValue (NUMBER)
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving SeroconversionH1N1 strain (N=916,467)95 Percentages
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving SeroconversionH3N2 strain (N=917,468)78 Percentages
TIV (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving SeroconversionB strain87 Percentages
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving SeroconversionH1N1 strain (N=916,467)94 Percentages
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving SeroconversionH3N2 strain (N=917,468)87 Percentages
Control (3-8 Years)Comparison of Antibody Responses of Investigational TIV to Control Vaccine in Terms of the Percentage of Subjects Achieving SeroconversionB strain85 Percentages
Comparison: Non-inferiority of investigational TIV to control TIV against A/H1N1 influenza strain95% CI: [-4, 2]
Comparison: Non-inferiority of investigational TIV to control TIV against A/H3N2 influenza strain95% CI: [6, 14]
Comparison: Non-inferiority of investigational TIV to the control TIV against B influenza strain95% CI: [-5, 3]
Secondary

Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control Vaccine

The number of 3-17 year old children with solicited local and systemic adverse events and other adverse events, after receiving either one or two doses of investigational TIV as compared to control vaccine are reported.

Time frame: Day 1 to 7 after vaccination

Population: Analysis was done on the safety set population i.e all subjects who received at least one study vaccine and provided post vaccination safety data.

ArmMeasureGroupValue (NUMBER)
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMyalgia78 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFatigue34 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineArthralgia41 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineHeadache (N=1037,531,817,411)101 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSweating37 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site erythema1 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAnalgesic/Antipyretic med.used(N=1032,531,816,412)91 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site induration10 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site pain363 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site swelling11 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineOther153 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny systemic262 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny local364 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineChills37 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineStayed at home due to reaction(N=1019,524,809,411)93 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFever (≥ 38°C)116 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMalaise77 Subjects
TIV (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site ecchymosis1 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFatigue22 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMyalgia50 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site ecchymosis1 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineOther89 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFever (≥ 38°C)68 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineArthralgia20 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny local216 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSweating29 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site swelling11 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineHeadache (N=1037,531,817,411)52 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAnalgesic/Antipyretic med.used(N=1032,531,816,412)52 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site pain215 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMalaise51 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site erythema1 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineStayed at home due to reaction(N=1019,524,809,411)54 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineChills20 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny systemic161 Subjects
Control (3-8 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site induration6 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineOther103 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site pain268 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site ecchymosis2 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site erythema2 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site induration5 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site swelling6 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny systemic193 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineChills38 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMalaise68 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMyalgia54 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineArthralgia26 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineHeadache (N=1037,531,817,411)93 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSweating43 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFatigue52 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFever (≥ 38°C)39 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny local270 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAnalgesic/Antipyretic med.used(N=1032,531,816,412)22 Subjects
TIV (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineStayed at home due to reaction(N=1019,524,809,411)89 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAnalgesic/Antipyretic med.used(N=1032,531,816,412)9 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFatigue21 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineChills8 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny systemic94 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site pain146 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineFever (≥ 38°C)12 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site swelling3 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site induration6 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny local148 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineOther54 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site erythema1 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineInjection site ecchymosis0 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineHeadache (N=1037,531,817,411)38 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineArthralgia12 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineStayed at home due to reaction(N=1019,524,809,411)49 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSweating22 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMyalgia34 Subjects
Control (9-17 Years)Number of Subjects Reporting Solicited Adverse Events After Vaccination With Investigational TIV and Control VaccineMalaise27 Subjects
Secondary

Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control Vaccine

The number of 3-17 year old children reporting any unsolicited adverse event and any serious adverse event (SAE) after receiving either one or two doses of investigational TIV and control vaccine are reported.

Time frame: Day 1 to 180 (non-naive )/Day 1 to 209 (naive)

Population: Analysis was done on the safety set population.

ArmMeasureGroupValue (NUMBER)
TIV (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny adverse event395 Subjects
TIV (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related adverse event64 Subjects
TIV (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSerious adverse event14 Subjects
TIV (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related serious adverse event1 Subjects
Control (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related adverse event36 Subjects
Control (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSerious adverse event3 Subjects
Control (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related serious adverse event0 Subjects
Control (3-8 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny adverse event194 Subjects
TIV (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSerious adverse event4 Subjects
TIV (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related adverse event23 Subjects
TIV (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related serious adverse event0 Subjects
TIV (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny adverse event101 Subjects
Control (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related serious adverse event0 Subjects
Control (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAt least possibly related adverse event11 Subjects
Control (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineAny adverse event58 Subjects
Control (9-17 Years)Number of Subjects Reporting Unsolicited Adverse Events After Vaccination With Investigational TIV and Control VaccineSerious adverse event3 Subjects
Secondary

Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.

The percentages of 3 to 8 year old subjects achieving HI titers ≥40 after receiving either one or two doses of investigational TIV or control vaccine, 21 days after last vaccination, are reported. This criterion according to the US (CBER)guideline is met if the lower bound of the two sided 95%CI for percentage of subjects achieving HI titers ≥40, is ≥70%.

Time frame: Day 22 for non-naive/Day 50 for naive subjects

Population: Analysis was performed on per protocol population.

ArmMeasureGroupValue (NUMBER)
TIV (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Baseline (H1N1strain, N=917,467)49 Percentages of subjects
TIV (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Day 22 or Day 50 (H1N1strain; N=917,468)97 Percentages of subjects
TIV (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Baseline (H3N2 strain)84 Percentages of subjects
TIV (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Day 22 or Day 50 (H3N2 strain; N=917,468)100 Percentages of subjects
TIV (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Baseline (B strain)23 Percentages of subjects
TIV (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Day 22 or Day 50 (B strain)95 Percentages of subjects
Control (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Baseline (B strain)26 Percentages of subjects
Control (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Baseline (H1N1strain, N=917,467)48 Percentages of subjects
Control (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Day 22 or Day 50 (H3N2 strain; N=917,468)100 Percentages of subjects
Control (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Day 22 or Day 50 (H1N1strain; N=917,468)95 Percentages of subjects
Control (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Day 22 or Day 50 (B strain)92 Percentages of subjects
Control (3-8 Years)Percentages of Subjects Achieving HI Titers ≥40 Following Vaccination With Investigational TIV or Control Vaccine.Baseline (H3N2 strain)85 Percentages of subjects
Secondary

Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control Vaccine

The percentages of 3 to 8 years-old subjects achieving seroconversion in HI antibody titers after receiving either one or two doses of investigational TIV or control vaccine, at 21 days after last vaccination, are reported. This criterion, according to the US (CBER) guideline, is met if the lower limit of 95% CI of percentage of subjects achieving seroconversion or significant increase at day 22 and day 50 (21 days after last vaccination) is ≥40.

Time frame: Day 22 for non-naive/Day 50 for naive

Population: Analysis was performed on the per protocol population.

ArmMeasureGroupValue (NUMBER)
TIV (3-8 Years)Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control VaccineH1N1 strain (N= 916,467)95 Percentages of subjects
TIV (3-8 Years)Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control VaccineH3N2 strain ( N= 917,468)78 Percentages of subjects
TIV (3-8 Years)Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control VaccineB strain87 Percentages of subjects
Control (3-8 Years)Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control VaccineH1N1 strain (N= 916,467)94 Percentages of subjects
Control (3-8 Years)Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control VaccineH3N2 strain ( N= 917,468)87 Percentages of subjects
Control (3-8 Years)Percentages of Subjects With Seroconversion in Antibody Titers Following Vaccination With Investigational TIV or Control VaccineB strain85 Percentages of subjects
Secondary

Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.

The percentage of 3 to 8 years-old vaccine-naive subjects achieving HI titers ≥40, after receiving two doses of investigational TIV or control vaccine. The time frame of evaluation was 28 days after first (Day 29) and 21 days after second vaccine dose (Day 50). This criterion according to the US (CBER) guideline is met if the lower bound of the two sided 95%CI for percentage of subjects achieving HI titers ≥40 is ≥70%, for each vaccine strain.

Time frame: Day 1, Day 29, and Day 50

Population: Analysis was done on the per protocol population.

ArmMeasureGroupValue (NUMBER)
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 50 (B strain)98 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 1 (H3N2 strain)88 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 29 (H1N1 strain, N=819,413)83 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 29 (H3N2 strain, N= 819, 413)99 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 1 (H1N1 strain, N=819,412)49 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 50 (H3N2 strain,N= 819, 413)100 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 50 (H1N1 strain, N= 819,413)99 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 1 (B strain)25 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 29 (B strain, N= 820,412)82 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 1 (B strain)26 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 29 (B strain, N= 820,412)81 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 50 (B strain)94 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 1 (H1N1 strain, N=819,412)48 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 29 (H1N1 strain, N=819,413)82 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 50 (H1N1 strain, N= 819,413)98 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 1 (H3N2 strain)90 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 29 (H3N2 strain, N= 819, 413)98 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving HI Titers ≥40 After Receiving Two Doses of Investigational TIV or Control Vaccine.Day 50 (H3N2 strain,N= 819, 413)100 Percentages of subjects
Secondary

Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control Vaccine

The percentages of 3 to 8 years-old vaccine naive children achieving seroconversion or significant increase in HI antibody titers after receiving two doses of investigational TIV or control vaccine, are reported. The time frame of evaluation was 28 days after first (Day 29) and 21 days after the second dose (Day 50). This criterion, according to the US (CBER) guideline, is met if the lower limit of 95% CI of percentage of subjects achieving seroconversion or significant increase at day 29 and day 50 is ≥40, for each vaccine strain.

Time frame: Day 29 and Day 50

Population: Analysis was done on the per protocol population.

ArmMeasureGroupValue (NUMBER)
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 29 (H1N1 strain, N= 818,412)82 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 50 (H1N1 strain, N= 818,412)98 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 29 (H3N2 strain, N= 819,413)74 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 50 (H3N2 strain, N= 819,413)78 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 29 (B strain, N= 820,412)74 Percentages of subjects
TIV (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 50 (B strain)89 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 29 (B strain, N= 820,412)73 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 29 (H1N1 strain, N= 818,412)81 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 50 (H3N2 strain, N= 819,413)87 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 50 (H1N1 strain, N= 818,412)96 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 50 (B strain)88 Percentages of subjects
Control (3-8 Years)Percentages of Vaccine-naive Children Achieving Seroconversion in Antibody Titers, After Receiving Two Doses of Investigational TIV or Control VaccineDay 29 (H3N2 strain, N= 819,413)87 Percentages of subjects

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