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Completed

NCT Number: NCT00540228

Study to Evaluate an Influenza Vaccine Candidate

In order to find the formulation leading to a maximal increase of the immune response while maintaining an acceptable safety profile, this study is designed to evaluate the immunogenicity, safety and reactogenicity of the different formulations of GSK Biologicals' influenza vaccine administered in adults aged 18-64 years.

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Key information

Conditions

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

Age range

18 year–64 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

GSK Investigational Site, Caen, France

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About this study

The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Only subjects who the investigator believes that they can and will comply with the requirements of the protocol .
  • A male or female between, and including, 18 - 64 years of age at the time of vaccination.
  • Written informed consent obtained from the subject.
  • Healthy subjects as established by medical history and clinical examination before entering into the study.
  • If the subject is female, she must be of non-childbearing potential or if she is of childbearing potential, she must have a negative pregnancy test, practice adequate contraception for 30 days prior to vaccination, and continue such precautions for 2 months after completion of the vaccination series.

Exclusion criteria

  • Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
  • Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within three months prior to the first vaccine dose
  • Administration of a vaccine not foreseen by the study protocol from 30 days before vaccination, up to 21 days after vaccination.
  • History of hypersensitivity to a previous dose of influenza vaccine.
  • Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination
  • History of allergic disease or reactions likely to be exacerbated by any component of the vaccine(s)
  • Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
  • Confirmed influenza infection within a year preceding the study start.
  • Administration of an influenza vaccine within a year preceding the study start.
  • Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.
  • Pregnant or lactating female.
  • Concurrent participation in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product
  • Acute disease at the time of enrolment.
  • History of chronic alcohol consumption and/or drug abuse.
  • Female planning to become pregnant or planning to discontinue contraceptive precautions.
  • Any condition which, in the opinion of the investigator, prevents the subject from participating in the study.
  • History of administration of experimental/licensed vaccine containing squalene and/or tocopherol within the last 12 months.

Treatment and study plan

Influenza Vaccine GSK1247446A - 4 different formulations

Biological

Single dose, Intramuscular injection

Fluarix™

Biological

Single dose, Intramuscular injection

Primary outcomes

  1. Titers for Serum Hemagglutination Inhibition (HI) Antibodies Against 3 Strains of Influenza Disease.

    Time frame: At Days 0, 21 and 180

    Titers are presented as geometric mean titers (GMTs). The 3 influenza strains assessed were A/Solomon Islands (SOLO), A/Wisconsin (WISC) and B/Malaysia (MALA). The seropositivity cut-off assay was 1:10. The results for Day 0 and Day 21 are the primary efficacy variables.

Secondary outcomes

  1. Number of Seroconverted Subjects Against 3 Strains of Influenza Disease.

    Time frame: At Days 21 and 180

    A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination titer <1:10 and a post-vaccination titer ≥1:40 or a pre-vaccination titer ≥1:10 and at least a four-fold increase in post-vaccination titer. The 3 influenza strains assessed were A/Solomon Islands (SOLO), A/Wisconsin (WISC) and B/Malaysia (MALA).

  2. Seroconversion Factor for Hemagglutination Inhibition (HI) Antibodies Against 3 Strains of Influenza Disease.

    Time frame: At Days 21 and 180

    The seroconversion factor (SCF) was defined as the fold increase in serum Hemagglutination Inhibition (HI) geometric mean titers (GMTs) post vaccination compared to Day 0. The 3 influenza strains assessed were A/Solomon Islands (SOLO), A/Wisconsin (WISC) and B/Malaysia (MALA).

  3. Number of Seroprotected Subjects Against 3 Strains of Influenza Disease.

    Time frame: At Days 0, 21 and 180

    A seroprotected subject was defined as a vaccinated subject who had a serum HI titer ≥ 1:40. The 3 influenza strains assessed were A/Solomon Islands (SOLO), A/Wisconsin (WISC) and B/Malaysia (MALA).

  4. Titers for Serum Hemagglutination Inhibition (HI) Antibodies Against 4 Strains of Influenza Disease.

    Time frame: At Days 0 and 21

    Titers are presented as geometric mean titers (GMTs). The 4 influenza strains assessed were A/Wisconsin (WISC), B/Malaysia (MALA), A/Brisbane (BRIS) and B/Florida (FLOR). The seropositivity cut-off assay was 1:28.

  5. Geometric Mean of Influenza-specific Cluster of Differentiation (CD) 4 T-cells.

    Time frame: At Days 0, 21 and 180

    The mean was calculated for CD4 T-cells (per million CD4 T-cells) producing at least two different cytokines (All Doubles), at least CD40L, at least INF gamma (IFN-γ), at least IL2 and at least TNF alpha (TNF-α).

  6. Geometric Mean of Influenza-specific Cluster of Differentiation (CD) 8 T-cells.

    Time frame: At Days 0, 21 and 180

    The mean was calculated for CD8 T-cells (per million CD8 T-cells) producing at least two different cytokines (All Doubles), at least CD40L, at least INF gamma (IFN-γ), at least IL2 and at least TNF alpha (TNF-α).

  7. Number of Subjects With Any and Grade 3 Solicited Local Symptoms.

    Time frame: During the 7-day (Days 0-6) post vaccination period

    Assessed solicited local symptoms were ecchymosis, pain, redness and swelling at injection site. Any = incidence of a particular symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal everyday activity. Grade 3 redness/swelling/ecchymosis = redness/swelling/ecchymosis spreading beyond 50 millimeters (mm) of the injection site.

  8. Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms.

    Time frame: During the 7-day (Days 0-6) post vaccination period

    Assessed solicited general symptoms were arthralgia, fatigue, fever [oral temperature above (>) 38.0 degrees Celsius (°C)], headache, myalgia, nausea and shivering. Any = incidence of a particular symptom regardless of grade intensity or relationship with the study vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever ≥ 39.0°C. Related = symptom considered by the investigator to have a causal relationship to study vaccination.

  9. Number of Subjects With Any, Grade 3 and Related Medically Significant Conditions (MSCs).

    Time frame: From Day 0 to Day 180

    MSCs were defined as conditions prompting emergency room visits or physician visits that were not related to common diseases or routine visits. Any = incidence of a particular symptom regardless of grade intensity or relationship with the study vaccination. Grade 3 = event which prevented normal activities. Related = event assessed by the investigator as causally related to the study vaccination

  10. Number of Subjects With Any, Grade 3 and Related Unsolicited Adverse Events (AEs).

    Time frame: During the 21-day (Days 0-20) post vaccination period

    Unsolicited AE covers any AE reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any = any unsolicited AE regardless of intensity or relationship to vaccination. Grade 3 = unsolicited AE that prevented normal activity Related = unsolicited AE assessed by the investigator as related to the vaccination.

  11. Number of Subjects With Serious Adverse Events (SAEs).

    Time frame: From Day 0 to Day 180

    Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization, result in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subject.

Sponsors and collaborators

Lead sponsor

GlaxoSmithKline

Industry

Registry information

Official study title

Immunogenicity, Safety and Reactogenicity of GSK Biologicals' Influenza Vaccine GSK1247446A With Various Formulations in Subjects Aged 18-64 Years

Important dates

Study start
2007
Primary completion
2008
Study completion
2008
First posted
Oct 5, 2007
Registry last updated
Jun 14, 2019

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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