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InfluenzaPhase 2NCT00318149

Safety Study of Four Candidate Influenza Vaccines to Prevent Influenza Disease in the Elderly Population

A Phase 2 study testing Fluarix, Fluarix-AS25 and Fluarix-AS50 in people with Influenza, run by GlaxoSmithKline at 1 site in Belgium.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

As influenza vaccine efficacy is reported to be lower in elderly subjects compared to healthy adults, probably as a result of immunosenescence, there is a desire to devise ways to increase the current vaccines efficacy for this target population. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Influenza
What is being tested?
Fluarix, Fluarix-AS25 and Fluarix-AS50
Could I receive a placebo?
No, everyone receives an active treatment
How many people
425 participants
Where
1 siteBelgium
Study dates
10 Oct 2005to 14 May 2006
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • A male or female aged between 18 and 40 years or aged 65 years or older at the time of the vaccination.
  • Free of obvious health problems as established by medical history and clinical examination before entering into the study.

Who cannot join

  • Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the administration of the 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 six months prior to the administration of the study vaccine.
  • History of confirmed influenza infection since a year from the date of previous vaccination.
  • Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination
  • History of hypersensitivity to vaccines.
  • History of allergic disease or reactions likely to be exacerbated by any component of the vaccine.
Show all 9Show fewer
  • Acute clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
  • Acute disease at the time of enrolment.
  • Administration of immunoglobulins and/or any blood products within the three months preceding the administration of the study vaccine or during the study.

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • GSK Investigational Site

    Ghent, 9000

Other trials in Belgium

About this study

Official title: Demonstrate the Non-inferiority in Term of Cellular Mediated Immune Response of GSK Biologicals' Influenza Candidate Vaccines Containing Various Adjuvants Administered in Elderly Population (Aged 65 Years &Amp; Older) vs Fluarix™ (Known as Alpha-Rix™ in Belgium) Administered in Adults (18-40 Years)

As influenza vaccine efficacy is reported to be lower in elderly subjects compared to healthy adults, probably as a result of immunosenescence, there is a desire to devise ways to increase the current vaccines efficacy for this target population. Adjuvants are known to boost immune responses, thus representing one way to increase the efficacy of the current GlaxoSmithKline Fluarix™ influenza vaccine in elderly subjects. The purpose of this study is to evaluate the immunogenicity and the reactogenicity of a vaccination with four different adjuvanted GlaxoSmithKline influenza vaccines administered to elderly subjects. For immunogenicity and safety evaluations, healthy adults aged 18 to 40 years old and elderly aged 65 years and older will receive Fluarix™ and form the control groups of this trial.

Conditions
Influenza
Being tested
Fluarix, Fluarix-AS25, Fluarix-AS50, Fluarix-AS01B, Fluarix-AS01E
Medical subject headings
Influenza, Human

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • FluarixBiological

    Also called GlaxoSmithKline Biologicals' licensed influenza vaccine

    1 dose administered intramuscularly in the deltoid region of the non-dominant arm

  • Fluarix-AS25Biological

    Also called Fluarix vaccine adjuvanted with AS25

    1 dose administered intramuscularly into the deltoid region of the non-dominant arm

  • Fluarix-AS50Biological

    Also called Fluarix vaccine adjuvanted with AS25

    1 dose administered intramuscularly into the deltoid region of the non-dominant arm

  • Fluarix-AS01BBiological

    Also called Fluarix vaccine adjuvanted with AS01B

    1 dose administered intramuscularly into the deltoid region of the non-dominant arm

  • Fluarix-AS01EBiological

    Also called Fluarix vaccine adjuvanted with AS01E

    1 dose administered intramuscularly into the deltoid region of the non-dominant arm

Study groups in NCT00318149
Study groupRoleWhat they receive
Fluarix 18-40 Y GroupExperimentalSubjects (aged 18-40 years [Y]) received 1 dose of the Fluarix vaccine, administered intramuscularly in the deltoid region of the non-dominant arm.
Receives: Biological: Fluarix
Fluarix ≥65 Y GroupExperimentalSubjects (aged ≥ 65 years) received 1 dose of the Fluarix vaccine, administered intramuscularly in the deltoid region of the non-dominant arm.
Receives: Biological: Fluarix
Fluarix-AS25 GroupExperimentalSubjects (aged ≥ 65 years) received 1 dose of the Fluarix vaccine adjuvanted with AS25, administered intramuscularly in the deltoid region of the non-dominant arm.
Receives: Biological: Fluarix-AS25
Fluarix-AS50 GroupExperimentalSubjects (aged ≥ 65 years) received 1 dose of the Fluarix vaccine adjuvanted with AS50, administered intramuscularly in the deltoid region of the non-dominant arm.
Receives: Biological: Fluarix-AS50
Fluarix- AS01B GroupExperimentalSubjects (aged ≥ 65 years) received 1 dose of the Fluarix vaccine adjuvanted with AS01B, administered intramuscularly in the deltoid region of the non-dominant arm.
Receives: Biological: Fluarix-AS01B
Fluarix- AS01E GroupExperimentalSubjects (aged ≥ 65 years) received 1 dose of the Fluarix vaccine adjuvanted with AS01E, administered intramuscularly in the deltoid region of the non-dominant arm.
Receives: Biological: Fluarix-AS01E

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Frequency of Influenza-specific Cluster of Differentiation 4+ (CD4+) T-cells Expressing at Least 2 Markers

    The frequency was expressed as the geometric mean of influenza-specific CD4 T-cells, expressing at least 2 markers among CD40 Ligand (CD40L), Interleukin 2 (IL-2), Tumor Necrosis Factor-α (TNF-α) and Interferon-γ (IFN-γ ) upon in vitro stimulation.

    Measured: At Day 21

Secondary outcomes (12)
  1. Titers for Serum Hemagglutination Inhibition (HI) Antibodies Against 3 Strains of Influenza Disease

    Titers are presented as geometric mean titers (GMTs). The 3 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Seropositivity was defined as a serum HI titer greater than or equal to (≥) 1:10.

    Measured: At Day 0 and at Day 21

  2. Titers for Serum HI Antibodies Against 3 Strains of Influenza Disease

    Titers are presented as geometric mean titers (GMTs). The 3 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Seropositivity was defined as a serum HI titer of ≥ 1:10.

    Measured: At Day 90 and Day 180

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

    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 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Measured: At Day 21

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

    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 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Measured: At Day 90 and Day 180

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

    The seroconversion factor (SCF) was defined as the fold change in serum Hemagglutination Inhibition (HI) geometric mean titers (GMTs) post vaccination compared to pre-vaccination time point. The 3 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Measured: At Day 21

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

    The seroconversion factor (SCF) was defined as the fold change in serum Hemagglutination Inhibition (HI) geometric mean titers (GMTs) post vaccination compared to pre-vaccination time point. The 3 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Measured: At Day 90 and Day 180

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

    A seroprotected subject was defined as a vaccinated subject with serum Hemagglutination Inhibition (HI) titer ≥ 1:40. The 3 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Measured: At Day 0 and at Day 21

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

    A seroprotected subject was defined as a vaccinated subject with serum Hemagglutination Inhibition (HI) titer ≥ 1:40. The 3 flu strains assessed were A/New Caledonia (H1N1), A/New York (H3N2) and B/Jiangsu (B).

    Measured: At Day 90 and Day 180

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

    Assessed solicited local symptoms were haematoma, pain, redness and swelling. Any = occurrence of any local symptom regardless of intensity grade. Grade 3 pain = pain which prevented normal everyday activity. Grade 3 haematoma/redness/swelling = haematoma/redness/swelling spreading beyond 50 millimeters (mm).

    Measured: During the 7-day (Days 0-6) follow-up period after vaccination

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

    Assessed solicited general symptoms were fatigue, fever [defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)], headache, joint pain, muscle aches and shivering. Any = occurrence of any general symptom regardless of intensity grade and relationship to vaccination. Grade 3 = symptoms that prevented normal activity. Grade 3 fever = fever >39°C. Related = general symptom assessed by the investigator as causally related to the study vaccination.

    Measured: During the 7-day (Days 0-6) follow-up period after vaccination

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

    An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and 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 was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination. Grade 3 =event that prevented normal everyday activity. Related = event assessed by the investigator as causally related to the study vaccination.

    Measured: During the 21-day (Days 0-20) follow-up period after vaccination

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

    Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

    Measured: During the entire study period (Day 0 - Day 180)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2006 (estimated)
  2. Study start10 Oct 2005
  3. Primary completion14 May 2006
  4. Study completion14 May 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
425 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00318149
Sponsor's protocol ID
104886
Status last verified
Feb 2018
First submitted
25 Apr 2006
Last updated
8 Aug 2018
Individual data sharing
Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Fluarix, Fluarix-AS25 and Fluarix-AS50 in people with Influenza, run by GlaxoSmithKline at 1 site in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 8 Aug 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Frequency of Influenza-specific Cluster of Differentiation 4+ (CD4+) T-cells Expressing at Least 2 Markers (time frame: At Day 21). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Aug 2018.

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