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Completed

NCT Number: NCT00644059

Study to Evaluate the Efficacy, Safety and Immunogenicity of Influenza Vaccine in Healthy Subjects (Aged 6 to <72 Months) Versus Control Vaccines

This study will evaluate the efficacy, safety and immunogenicity of one or two 0.25 mL or 0.5 mL intramuscular injections of an adjuvanted influenza vaccine compared with non-influenza and non-adjuvanted influenza control vaccines in subjects 6 to <72 months of age.

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Key information

Conditions

Influenza, Human Infections Orthomyxoviridae Infections RNA Virus Infections Respiratory Tract Diseases Respiratory Tract Infections Virus Diseases

Age range

6 month–71 month

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

East Vantaa Clinic, East Vaanta, Finland

Loading trial locations.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Children whose parents/legal guardians have given written informed consent prior to study entry: a) aged 6 to <72 months (Part I and II of the study; influenza seasons 2007/2008 and 2008/2009) b) aged 6 to <36 months (Part III of the study; influenza season 2009/2010)
  • In good health as determined by: a) medical history, b) physical examination, c) clinical judgment of the investigator

Exclusion criteria

  • Administration of licensed vaccines (including H1N1sw vaccines) within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior to enrollment in this study. Routine vaccines, according to local recommendations, or any other vaccines not foreseen in the protocol could be given after the active trial phase (i.e., 21 days after last vaccination) has been concluded.
  • Receipt of another investigational vaccine or any investigational agent within 30 days prior to enrollment in the study or before completion of the safety follow-up period in another study, whichever is longer, and participation in another clinical trial during the present study.
  • Experience of a severe acute infectious disease in the month prior to study start or experience of a mild acute infection disease in the week prior the study start (untreated common cold is acceptable). The severity of the infectious disease occurred will be based on the investigator's judgment.
  • Any severe acute respiratory disease and infection requiring systemic antibiotic or antiviral therapy ongoing or resolved within 2 days prior to study start.
  • Experience an axillary temperature equal to or greater than 37.8°C (rectal temperature equal to or greater than 38.3°C) within the 2 days before enrollment.
  • Any serious disease in the opinion of the investigator including, for example: a) cancer, b) autoimmune disease (including rheumatoid arthritis under immunosuppressive therapy), c) insulin dependent diabetes mellitus, d) chronic pulmonary disease, asthma under inhalative therapy only is acceptable, e) acute or progressive hepatic disease, f) acute or progressive renal disease.
  • Known or suspected impairment/alteration of immune function, for example, resulting from: a) receipt of immunosuppressive therapy (corticosteroid -except topical or inhaled steroids- or cancer chemotherapy), b) receipt of immunostimulants, c) receipt of parenteral immunoglobulin preparation, blood products, and/or plasma derivatives within the past 90 days and for the full length of the study, d) high risk for developing an immunocompromising disease (suspected or known HIV infection or HIV-related disease).
  • Bleeding diathesis.
  • History of hypersensitivity to any component of the study medication or chemically related substances.
  • History of any anaphylaxis, serious vaccine reactions, or allergy to eggs, egg products or any other vaccine component.
  • Laboratory confirmed influenza disease.
  • History of neurological disorder or seizures (febrile seizures allowed).
  • Received any influenza vaccine.
  • Major surgery planned during the study period.
  • Any condition which, in the opinion of the investigator, might interfere with the evaluation of the study objectives, e.g., planned travel or relocation of residence that would interfere with completion of study.

Treatment and study plan

Adjuvanted trivalent inactivated subunit influenza vaccine

Biological

Either two intramuscular (IM) injections of half dose or one IM injection of full dose, depending on age of subject, were administered in the deltoid muscle preferably of the non-dominant arm.

Other names: Fluad

Non-adjuvanted trivalent inactivated subunit influenza vaccine or non-adjuvanted trivalent inactivated split influenza vaccine

Biological

For both vaccines, either two intramuscular (IM) injections of half dose or one IM injection of full dose, depending on age of subject, were administered in the deltoid muscle preferably of the non-dominant arm.

Other names: 1) Agrippal, 2) Influsplit SSW

Meningococcal C conjugate vaccine or tick-borne encephalitis vaccine

Biological
  • Meningococcal vaccine: two IM injections
  • Tick-borne encephalitis vaccine: two IM injections

Other names: 1. Menjugate, 2. Encepur Children

Primary outcomes

  1. Number of Subjects (Unprimed) 6 to <36 Months Age With Local and Systemic Reactions After Any Vaccination for All Seasons, Comparison of Adjuvanted Trivalent Influenza Vaccine (aTIV) and Flu Vaccine Control.

    Time frame: 7 days post-vaccination

    Safety was assessed in terms of number of subjects experiencing each of the local and systemic reactions within 7-days after any vaccination for all seasons, comparison of adjuvanted Trivalent influenza vaccine (aTIV) and flu vaccine control.

  2. Percentage of Subjects (Unprimed) Aged 6 to <36 Months With Virus-Confirmed Influenza, Comparison of aTIV and Non-flu Vaccine Control (Men C/TBE Vaccine)

    Time frame: 3 weeks after 2nd vaccination

    Virus-confirmed influenza illnesses were assessed and compared between the adjuvanted influenza vaccine (TIV-adj) and non-influenza vaccines (Non-flu control) in 6 to <36 month unprimed subjects for Absolute Efficacy. This primary endpoint is only for homologous strains.

Secondary outcomes

  1. Number of Subjects (Unprimed) of 6 to <72 Months Age With Local and Systemic Reactions After Any Vaccination

    Time frame: 7 days post-vaccination

    Safety was assessed as the number of subjects aged 6 to <72 months who reported solicited local or systemic adverse events after any vaccination with TIV-adj for all seasons.

  2. Number of Subjects (Unprimed) With Unsolicited Adverse Events Reported After Any Vaccination

    Time frame: Study day 1 to Study day 181

    Number of subjects aged 6 to <36 months and in the overall age cohort (unprimed children aged 6 to <72 months) experiencing each of the unsolicited adverse events (AEs) throughout the study

  3. Percentage of Subjects (Unprimed) Aged 6 to <72 Months With Virus-Confirmed Influenza, Comparison of aTIV to Non-flu Vaccine Control and Flu-vaccine Control (Matched Strains)

    Time frame: 3 weeks after 2nd vaccination

    Virus-confirmed influenza illnesses were assessed and compared between the adjuvanted influenza vaccine (TIV-adj) and non-influenza vaccines (Non-flu control) in subjects aged 6 to <72 months (unprimed) for Absolute Efficacy.

    For Relative efficacy, the comparison was made between adjuvanted influenza vaccine (TIV-adj) and flu vaccine control.

  4. Percentage of Subjects (Unprimed) Aged 6 to <72 Months With Virus-Confirmed Influenza, Comparison of aTIV to Non-flu Vaccine Control and Flu Vaccine Control (Any Strains).

    Time frame: 3 weeks after 2nd vaccination

    Virus-confirmed influenza illnesses (regardless of antigenic match to those contained in the vaccine) were assessed and compared between the adjuvanted influenza vaccine (TIV-adj) and non-influenza vaccines (Non-flu control) in subjects aged 6 to <72 months (unprimed) for Absolute Efficacy.

    For Relative efficacy, the comparison was made between adjuvanted influenza vaccine (TIV-adj) and flu vaccine control.

  5. Number of Subjects (Unprimed) With Influenza Like Illnesses (ILIs) in the 6 to <72 Months Age Cohort for Combined Seasons 2007/08 and 2008/09

    Time frame: 3 weeks after 2nd vaccination

    Virus-confirmed influenza illnesses were assessed and trivalent adjuvanted influenza vaccine (TIV-adj) was compared with Non-flu control vaccine and Flu-control vaccine in 6 to <72 month old subjects for Influenza like illnesses for seasons 2007/08 and 2008/09.

  6. Number of Subjects With Influenza Like Illnesses (ILIs) in the 6 to <36 Months and in Overall Age Cohort (Unprimed Subjects Aged 6 to <72 Months) for Combined Seasons 2007/08 and 2008/09

    Time frame: 3 weeks after 2nd vaccination

    Virus-confirmed influenza illnesses were assessed and trivalent adjuvanted influenza vaccine (TIV-adj) was compared with Non-flu control vaccine and Flu-control vaccine for Influenza like illnesses for seasons 2007/08 and 2008/09.

  7. Loss of Days of Usual Activity (Job, School, Day Care, Household/Family/Community Activities) Due to Influenza Like Illness (ILI) in Subjects in Aged 6 to <72 and 6 to <36 Months and in Direct Caregivers Living in the Household.

    Time frame: 3 weeks after 2nd vaccination

    Virus-confirmed influenza illnesses were assessed and trivalent adjuvanted influenza vaccine (TIV-adj) was compared with Non-flu control vaccine and Flu-control vaccine for Influenza like illnesses for seasons 2007/08 and 2008/09.

  8. Number of Events of Influenza Like Illness for Combined Seasons 2007/08 and 2008/09.

    Time frame: 3 weeks after 2nd vaccination

    The number of events of Influenza like Illness reported by subjects aged 6 to <72 months was assessed for combined seasons 2007/08 and 2008/09

  9. Immunogenicity of aTIV, Compared to Flu and Non-Flu-control, in Terms of GMRs, in Unprimed Subjects Aged 6 to <36 Months or Season 2008/09 (Homologous and Heterologous Strains)

    Time frame: On study days 1, 29, 50 and 181

    The immunogenicity was assessed in terms of Geometric mean titer ratios (GMRs) of study day 29/study day 1, study day 50/study day 1, study day 181/study day 1 were evaluated.

    The criteria for evaluation is GMR >2.5

  10. Immunogenicity of aTIV, Compared to Flu and Non-Flu-control, in Terms of Geometric Mean Titers (GMTs), in Unprimed Subjects Aged 6 to <36 Months for Season 2008/09 (Homologous and Heterologous Strains)

    Time frame: On study days 1, 29, 50 and 181

    Immunogenicity was analyzed in terms of Geometric Mean Titers (GMTs) as measured by hemagglutination inhibition (HI) assay. For each strain and each vaccine group, least squares GMTs, associated 2-sided 95% confidence interval were determined for all time points.

    Superiority analysis: GMT-TIV-adj/GMT-Flu-control >1 should be elicited to show that GMT-TIV-adj is superior to GMT-Flu-control

  11. Percentage (95% CI) of Unprimed Subjects Aged 6 to <36 Months With HI Titer ≥1:40 in Season 2008/09 HI Assay(Homologous and Heterologous Strains)

    Time frame: On study days 1, 29, 50, 181

    Percentage of subjects achieving seroprotection (i.e., with HI titer ≥1:40) at study day 1, study day 29, study day 50 and a study day 181 and associated 95% CI. The lower bound of the two-sided 95% CI for the percentage of subjects achieving an HI antibody titer ≥1:40 should meet or exceed 70%.

  12. Percentage (95% CI) of Unprimed Subjects Aged 6 to <36 Months With Seroconversion From Baseline, for Season 2008/09 (Homologous and Heterologous Strains)

    Time frame: On study days 1, 29, 50, 181

    HI assay was used for the analysis. Seroconversion is defined as negative pre-vaccination serum (<10)/ post-vaccination HI titer ≥1:40.

    Seroconversion is defined as either pre-vaccination HI titer <10 and a post-vaccination HI titer ≥1:40 or a prevaccination HI titer ≥10 and a minimum four-fold rise in post-vaccination HI antibody titer.

    The lower bound of the two-sided 95% confidence interval (CI) for the percentage of subjects achieving seroconversion for HI antibody should meet or exceed 40%.

  13. Immunogenicity of aTIV, Compared to Flu and Non-Flu-control, in Terms of GMTs, in Unprimed Subjects Aged 6 to <72 Months for Season 2008/09 (Homologous and Heterologous Strains)

    Time frame: On study days 1, 29, 50 , 181

    Immunogenicity was analyzed in terms of Geometric Mean Titers (GMTs) as measured by hemagglutination inhibition (HI) assay. For each strain and each vaccine group, least squares GMTs, associated 2-sided 95% confidence interval were determined for all time points Superiority analysis: GMT-TIV-adj/GMT-Flu-control >1 and GMT-TIV-adj/GMT-Non Flu-control >1 should be elicited to show that GMT-TIV-adj is superior to GMT-Flu-control/Non Flu-control.

  14. Immunogenicity of aTIV, Compared to Flu and Non-Flu-control, in Terms of GMRs, in Unprimed Subjects Aged 6 to <72 Months for Season 2008/09 (Homologous and Heterologous Strains)

    Time frame: On study days 1, 29, 50, 181

    Hemagglutination Inhibition (HI) assay was used for the analysis. Geometric mean titer ratios (GMRs) of study day 29/study day 1, study day 50/study day 1, study day 181/study day 1 were evaluated.

    The criteria for evaluation is GMR >2.5

  15. Percentages of Subjects With HI Titers ≥ 1:40 in Unprimed Subjects 6 to <72 Months of Age for Season 2008/09 Homologous and Heterologous Strains

    Time frame: On study days 1, 29, 50, 181

    Hemagglutination Inhibition (HI) assay was used for the analysis.

    Percentage of subjects achieving seroprotection (i.e., with HI titer ≥1:40) at study day 1, study day 29, study day 50 and a study day 181 and associated 95% Confidence Intervals. The lower bound of the two-sided 95% CI for the percentage of subjects achieving an HI antibody titer ≥1:40 should meet or exceed 70%.

  16. Percentages of Subjects With Seroconversion and Vaccine Group Differences in Unprimed Subjects 6 to <72 Months of Age for Season 2008/09 (Homologous and Heterologous Strains)

    Time frame: On study days 1, 29, 50, 181

    HI assay was used for the analysis. Seroconversion is defined as negative pre-vaccination serum (<10)/ post-vaccination HI titer ≥1:40.

    Seroconversion is defined as either pre-vaccination HI titer <10 and a post-vaccination HI titer ≥1:40 or a prevaccination HI titer ≥10 and a minimum 4-fold rise in post-vaccination HI antibody titer. The lower bound of the two-sided 95% confidence interval (CI) for the percentage of subjects achieving seroconversion for HI antibody should meet or exceed 40%.

  17. Number of Subjects With Local and Systemic Reactions for Egg and Cell Derived Inactivated Novel Swine Origin A/H1N1 Subunit Influenza Vaccines After Each Vaccination for All Seasons

    Time frame: 7 days post-vaccination

  18. Indirect Protective Effect of Fluad (NH Composition 2007/2008), Compared to Non-flu Control and Flu Control, in Connection to Household-contact Persons Via a Questioning of the Parents About ILI of Persons Living in the Same Household as the Study Child

    Time frame: 3 weeks after 2nd vaccination

  19. Incidence Rate of the 2009-2010 H1N1 Swine Pandemic Caused by a Novel Influenza A (H1N1) Virus of Swine Origin in Unprimed Children Aged 6 to <36 and 6 to <72 Months

    Time frame: 3 weeks after 2nd vaccination

Sponsors and collaborators

Lead sponsor

Novartis

Industry

Collaborators

  • Novartis Vaccines

Registry information

Official study title

A Phase III, Randomized, Observer-blind, Controlled, Multi-center Clinical Trial to Evaluate the Efficacy, Safety and Immunogenicity of One and Two Intramuscular Doses of Influenza Vaccine Versus Control Vaccines in Healthy Subject Aged 6 to <72 Months

Important dates

Study start
2007
Primary completion
2010
Study completion
2010
First posted
Mar 26, 2008
Registry last updated
Sep 18, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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