InfluenzaPhase 2NCT00985673
Safety and Immunogenicity of H1N1 Vaccine With Trivalent Inactivated Seasonal Influenza Vaccine in Adults
A Phase 2 study testing GSK2340274A, GSK2340273A and Seasonal trivalent influenza vaccine (TIV) in people with Influenza, run by GlaxoSmithKline at 7 sites in 2 countries.
Trial summary
The purpose of this study is to characterize the safety and immunogenicity of the H1N1 (swine) flu vaccines GSK2340274A and GSK2340273A when co-administered with the seasonal flu vaccine in adults 19 to 40 years of age. Read more about this study
- Who is it for?
- Ages 19 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Influenza
- What is being tested?
- GSK2340274A, GSK2340273A and Seasonal trivalent influenza vaccine (TIV)
- Type of treatment
- Vaccines, Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 611 participants
- Where
- 7 sitesin 2 countries
- Study dates
- 1 Oct 2009to 29 Dec 2010
- 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 19 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Subjects who the investigator believes can and will comply with the requirements of the protocol.
- Written informed consent obtained from the subject.
- Male or female adults, 19-40 years of age at the time of the first vaccination.
- Safety laboratory tests results within the parameters specified in the protocol.
- Satisfactory baseline medical assessment by physical examination.
- Comprehension of the study requirements, ability to comprehend and comply with procedures for collection of safety data, expressed availability for the required study period, and ability and willingness to attend scheduled visits as documented by signature on the informed consent document.
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- Access to a consistent means of telephone contact, which may be either in the home or at the workplace, land line, or mobile, but NOT a pay phone or other multiple-user device.
- Female subjects of non-childbearing potential may be enrolled in the study.
- Female subjects of childbearing potential may be enrolled in the study, if the subject:
- has practiced adequate contraception for 30 days prior to vaccination, and
- has a negative pregnancy test on the day of first vaccination, and
- has agreed to continue adequate contraception during the entire treatment period and for 2 months after completion of the vaccination series.
Who cannot join
- Previous vaccination with an H1N1v-like virus vaccine or a medical history of physician-confirmed infection with an H1N1v-like virus.
- Prior receipt at any time of any seasonal influenza vaccine.
- Planned administration of any vaccine not foreseen by the study protocol between Day 0 and the Day 63 phlebotomy.
- Administration of any licensed vaccine within 4 weeks before the first study vaccine dose.
- Use of any investigational or non-registered product other than the study vaccines within 30 days preceding the first dose of study vaccine, or planned use during the study period.
- Receipt of systemic glucocorticoids within one month prior to study enrolment, or any other cytotoxic or immunosuppressive drug within six months of study enrolment. Topical, intra-articularly injected, or inhaled glucocorticoids, topical calcineurin inhibitors or imiquimod are allowed.
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- Receipt of any immunoglobulins and/or any blood products within three months of study enrolment or planned administration of any of these products during the study period.
- Presence of evidence of substance abuse or of neurological or psychiatric diagnoses which, even if stable, are deemed by the investigator to render the potential subject unable/unlikely to provide accurate safety reports.
- Presence of a temperature >= 38.0ºC (>=100.4ºF), or acute symptoms greater than "mild" severity on the scheduled date of first vaccination.
- Diagnosed with cancer, or treatment for cancer, within 3 years.
- Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.
- Any significant disorder of coagulation or treatment with warfarin derivatives or heparin. Persons receiving individual doses of low molecular weight heparin outside of 24 hours prior to vaccination are eligible. Persons receiving prophylactic antiplatelet medications, e.g., low-dose acetylsalicylic acid, and without a clinically-apparent bleeding tendency, are eligible.
- An acute evolving neurological disorder or history of Guillain-Barré syndrome within six weeks of receipt of seasonal influenza vaccine.
- Any known or suspected allergy to any constituent of influenza vaccines; a history of anaphylactic-type reaction to any constituent of influenza vaccines; or a history of severe adverse reaction to a previous influenza vaccine.
- Known pregnancy or a positive urine beta-human chorionic gonadotropin test result prior to first vaccination.
- Lactating or nursing women.
Trial locations and contacts
7 sites in 2 countries.
7 sites in 2 countries
United States4 sites
GSK Investigational Site
Austin, Texas, 78705
GSK Investigational Site
Fort Worth, Texas, 76135
GSK Investigational Site
Raleigh, North Carolina, 27612
GSK Investigational Site
Stockbridge, Georgia, 30281
Canada3 sites
GSK Investigational Site
Halifax, Nova Scotia, B3K 6R8
GSK Investigational Site
Montreal, Quebec, H2K 4L5
GSK Investigational Site
Sherbrooke, Quebec, J1H 4J6
About this study
Official title: A Study to Evaluate the Safety and Immunogenicity of an A/California/7/2009 (H1N1)V-like Vaccine GSK2340274A or GSK2340273A Co-administered With Trivalent Inactivated Seasonal Influenza Vaccine in Adults 19 to 40 Years of Age
The purpose of this study is to characterize the safety and immunogenicity of the H1N1 (swine) flu vaccines GSK2340274A and GSK2340273A when co-administered with the seasonal flu vaccine in adults 19 to 40 years of age.
Read the detailed description
Collaborators: United States Department of Health and Human Services, Office of Biomedical Advanced Research and Development Authority
- Conditions
- Influenza
- Being tested
- GSK2340274A, GSK2340273A, Seasonal trivalent influenza vaccine (TIV), Saline placebo
- Keywords
- GSK Bio's influenza vaccine GSK2340274A, influenza infection, GSK Bio's influenza vaccine GSK2340273A
- Medical subject headings
- Influenza, Human
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GSK2340274ABiological
Two intramuscular injections
GSK2340273ABiological
Two intramuscular injections
Seasonal trivalent influenza vaccine (TIV)Biological
Single intramuscular injection
Saline placeboBiological
Single intramuscular injection
| Study group | Role | What they receive |
|---|---|---|
| Flulaval/placebo/unadjuvanted Arepanrix Group | Experimental | subjects received co-administration of Flulaval vaccine and saline placebo on Day 0 followed by the unadjuvanted formulation of Arepanrix vaccine on Day 21 and Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. Receives: Biological: GSK2340273A; Biological: Seasonal trivalent influenza vaccine (TIV); Biological: Saline placebo |
| Flulaval/placebo/Arepanrix Group | Experimental | subjects received co-administration of Flulaval vaccine and saline placebo on Day 0 followed the administration of Arepanrix vaccine on Day 21 and Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. Receives: Biological: GSK2340274A; Biological: Seasonal trivalent influenza vaccine (TIV); Biological: Saline placebo |
| Flulaval/unadjuvanted Arepanrix/placebo Group | Experimental | subjects received co-administration of Flulaval vaccine and the unadjuvanted formulation of Arepanrix vaccine on Day 0 followed by the administration of the unadjuvanted formulation of Arepanrix vaccine on Day 21 and saline placebo on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. Receives: Biological: GSK2340273A; Biological: Seasonal trivalent influenza vaccine (TIV); Biological: Saline placebo |
| Flulaval/Arepanrix/placebo Group | Experimental | subjects received co-administration of Flulaval vaccine and Arepanrix vaccine on Day 0 followed by Arepanrix vaccine on Day 21 and saline placebo on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. Receives: Biological: GSK2340274A; Biological: Seasonal trivalent influenza vaccine (TIV); Biological: Saline placebo |
| Unadjuvanted Arepanrix/placebo/Flulaval Group | Experimental | subjects received co-administration of the unadjuvanted formulation of Arepanrix vaccine and saline placebo on Day 0 followed by the unadjuvanted formulation of Arepanrix vaccine on Day 21 and Flulaval vaccine on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. Receives: Biological: GSK2340273A; Biological: Seasonal trivalent influenza vaccine (TIV); Biological: Saline placebo |
| Arepanrix/placebo/Flulaval Group | Experimental | subjects received co-administration of Arepanrix vaccine and saline placebo on Day 0 followed by Arepanrix vaccine on Day 21 and Flulaval vaccine on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. Receives: Biological: GSK2340274A; Biological: Seasonal trivalent influenza vaccine (TIV); Biological: Saline placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
The A/California vaccine virus-homologous antibody response was measured in subjects having received Flulaval vaccine co-administered with the first dose of Arepanrix vaccine, and in subjects having received two doses of Arepanrix vaccine alone.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the second dose of Arepanrix vaccine (at Day 42).
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
The A/California vaccine virus-homologous antibody response was measured in subjects having received Flulaval vaccine co-administered with the first dose of the unadjuvanted formulation of Arepanrix vaccine, and in subjects having received two doses of the unadjuvanted formulation of Arepanrix vaccine alone.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the second dose of the unadjuvanted formulation of Arepanrix vaccine (at Day 42)
Secondary outcomes (38)
Number of Influenza-specific Cluster of Differentiation 4 (CD4) T-cells Per Million Producing Two or More Markers Within Cluster Differentiation 40 Ligand (CD40L), Interleukin-2 (IL-2), Interferon-γ (IFN-γ) and Tumor Necrosis Factor-α (TNF-α).
Influenza-specific CD4 T-Cells were stimulated in vitro with A/California virus and seasonal Influenza viruses, related antigens or derived peptides.
Stimulating antigens were A/Brisbane, A/California, pool peptides H1N1 and pool FLU.
Measured: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Influenza-specific Cluster of Differentiation 8 (CD8) T-cells Per Million Producing Two or More Markers Within Cluster Differentiation 40 Ligand (CD40L), Interleukin-2 (IL-2), Interferon-γ (IFN-γ) and Tumor Necrosis Factor-α (TNF-α).
Influenza-specific CD8 T-Cells were stimulated in vitro with A/California virus and seasonal Influenza viruses, related antigens or derived peptides.
Stimulating antigens were A/Brisbane, A/California, pool peptides H1N1 and pool FLU.
Measured: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Laboratory parameters assessed were alanine aminotransferase (ALAT), aspartate aminotransferase (ASAT), alkaline phosphatase (AP), bilirubin (BIL) (total (T)), basophils (BAS). For each parameter and for each range it was assessed whether the values of the subjects were in unkown, above, below or within the range.
Measured: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Laboratory parameters assessed were creatinine (CREA), bilirubin (BIL) (direct (D)), eosinophils (EOS), hemoglobin (Hgb), hematocrit (Hct). For each parameter and for each range it was assessed whether the values of the subjects were unknown, in above, below or within the range.
Measured: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Solicited Local Symptoms.
Solicited local symptoms assessed were pain, redness and swelling
Measured: During a 7-day follow-up period (Days 0-6) post-vaccination period
Number of Subjects Reporting Solicited General Symptoms.
Solicited general symptoms assessed were fatigue, headache, joint pain at other location, muscle aches, shivering, sweating and temperature. Temperature is defined as an axillary temperature equal to or above 38.0 degrees Celsius (°C).
Measured: During a 7-day follow-up period (Days 0-6) post-vaccination period
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Laboratory parameters assessed were serum urea nitrogen (SUN), white blood cells (WBC), red blood cells (RBC). For each parameter and for each range it was assessed whether the values of the subjects were unknown, above, below or within the range.
Measured: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Unsolicited Adverse Events (AEs).
An unsolicited adverse event is any adverse event (i.e. any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with use of a medicinal product, whether or not considered related to the medicinal product) 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.
Measured: Within the 84-day (Days 0-83) post-vaccination period.
Number of Subjects Reporting Medically Attended Visits (MAEs).
The day 368 was the last contact day for the last subject reporting the event. For each solicited and unsolicited symptom the subject experienced, the subject was asked if they received medical attention defined as hospitalization, an emergency room visit or a visit to or from medical personnel for any reason.
Measured: During the entire study period (Days 0-368).
Number of Subjects Reporting Potential Immune Diseases (pIMDs).
The day 406 was the last contact day with the subjects reporting the event. Potential immune-mediated diseases (pIMDs) are a subset of AEs that include both clearly autoimmune diseases and also other inflammatory and/or neurologic disorders which may or may not have an autoimmune etiology.
Measured: During the entire study period (Days 0-406).
Number of Subjects Reporting Serious Adverse Events (SAEs).
The day 329 was the last contact day with the subjects reporting serious adverse events.
SAEs assessed include medical occurrences that results in death, are life threatening, require hospitalization or prolongation of hospitalization, results in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subjects.
Measured: During the entire study period (Days 0-329).
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Laboratory parameters assessed were neutrophils (NEU), lymphocytes (LYM), monocytes (MON) and platelets (PLA). For each parameter and for each range it was assessed whether the values of the subjects were unknown, in above, below or within the range.
Measured: On Days 0, 7, 21, 28, 42, 63 and 182
Microneutralization Antibody Titers Against A/California/7/2009 (H1N1) Strain.
Titers were expressed as geometric mean titers (GMTs) and measured by microneutralization.
Arepanrix vaccine strain and the unadjuvanted formulation of Arepanrix vaccine strain was A/California/7/2009 (H1N1).
Microneutralization testing was cancelled.
Measured: On Days 0, 21, 42, 63 and 182
Number of Subjects With a Microneutralization Titer Greater Than or Equal to 1:28 for Antibodies Against A/California/7/2009 (H1N1) Strain.
Arepanrix vaccine strain and the unadjuvanted formulation of Arepanrix vaccine strain was A/California/7/2009 (H1N1).
The antibody cut-off value assessed was a titer of 1:10 and this value was considered as seropositivity.
Seronegative subject is a subject whose antibody titer is below the cut-off value, a seropositive subject is a subject whose antibody titer is greater than or equal to the cut-off value. Microneutralization titers < 1:28 were considered below the cut-off.
Microneutralization testing was cancelled.
Measured: On Days 0, 21, 42, 63 and 182
Vaccine Response Rates (VRR) for Microneutralization Antibody Titers Against A/California/7/2009 (H1N1) Strain.
Arepanrix vaccine strain and the unadjuvanted formulation of Arepanrix vaccine strain was A/California/7/2009 (H1N1).
Vaccine Response Rate for microneutralization titers was defined as the incidence rate of vaccinees with at least a 4-fold increase in post vaccination reciprocal titer relative to Day 0.
Microneutralization testing was cancelled.
Measured: On Days 0, 21, 42, 63 and 182
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
The A/California vaccine virus-homologous antibody response was measured in subjects having received two doses of Arepanrix vaccine, with prior treatment with Flulaval vaccine 21 days before the first dose and in subjects having received two doses of Arepanrix vaccine alone.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the second dose of Arepanrix vaccine (Day 63 for Flulaval/placebo/Arepanrix Group and Day 42 for Arepanrix/placebo/Flulaval Group)
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
The A/California vaccine virus-homologous antibody response was measured in subjects having received two doses of the unadjuvanted formulation of Arepanrix vaccine, with prior treatment with Flulaval vaccine 21 days before the first dose and in subjects having received two doses of the unadjuvanted formulation of Arepanrix vaccine alone.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the second dose of the unadjuvanted formulation of Arepanrix vaccine (Day 63 for Flulaval/placebo/unadjuvanted Arepanrix Group and Day 42 for Unadjuvanted Arepanrix/placebo/Flulaval Group)
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
The A/California vaccine virus-homologous antibody response was measured in subjects pre-treated with Flulaval who subsequently received two doses of the unadjuvanted formulation of Arepanrix vaccine compared to subjects pre-treated with Flulaval vaccine who subsequently received two doses of Arepanrix vaccine.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the second dose of the pandemic vaccine (at Day 63)
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
The antibody response against each of the three Flulaval vaccine components in subjects exposed to co-administration of Flulaval vaccine with the first of two doses of Arepanrix vaccine and in subjects exposed to a single dose of Flulaval vaccine.
Flulaval vaccine strains were Flu A/Brisbane/59/2007 H1N1, Flu A/Uruguay/716/2007 H3N2 and Flu B/Brisbane/60/2008.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the Flulaval vaccination (at Day 21).
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
The antibody response against each of the three Flulaval vaccine components in subjects exposed to co-administration of Flulaval vaccine with the first of two doses of the unadjuvanted formulation of Arepanrix vaccine and in subjects exposed to a single dose of Flulaval vaccine.
Flulaval vaccine strains were Flu A/Brisbane/59/2007 H1N1, Flu A/Uruguay/716/2007 H3N2 and Flu B/Brisbane/60/2008.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the Flulaval vaccination (at Day 21).
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
The antibody response against each of the three Flulaval vaccine components in subjects exposed to pre-treatment with two doses of Arepanrix vaccine and in subjects exposed to a single dose of Flulaval vaccine.
Flulaval vaccine strains were Flu A/Brisbane/59/2007 H1N1, Flu A/Uruguay/716/2007 H3N2 and Flu B/Brisbane/60/2008.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the Flulaval vaccination (Day 63 for Arepanrix/placebo/Flulaval Group and Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups)
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
The antibody response against each of the three Flulaval vaccine components in subjects exposed to pre-treatment with two doses of the unadjuvanted formulation of Arepanrix vaccine and in subjects exposed to a single dose of Flulaval vaccine.
Flulaval vaccine strains were Flu A/Brisbane/59/2007 H1N1, Flu A/Uruguay/716/2007 H3N2 and Flu B/Brisbane/60/2008.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: 21 days after the Flulaval vaccination (Day 63 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups)
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flu A/California H1N1 Strain.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: On Days 0, 21, 42 and 63
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flu A/California H1N1 Strain.
Titers were expressed as geometric mean antibody titers (GMTs).
Measured: At Day 182
Number of Seroconverted Subjects for Antibodies Against A/ California Strain.
Seroconversion rate was defined as the incidence rate of vaccinees who had either a pre-vaccination titer recorded as < 1:10 and a post-vaccination reciprocal titer ≥ 40 or a pre-vaccination reciprocal titer ≥ 10 and at least a 4-fold increase in post vaccination reciprocal titer.
Seroconversion defined as:
For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer
Measured: At Day 63 from Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups; At Day 42 from Day 0 for the 4 other groups
Number of Seroprotected Subjects for Antibodies Against A/California Strain.
Seroprotection rate was defined as the proportion of subjects with H1N1 reciprocal HI titers ≥ 40 against the tested vaccine virus.
Measured: At Day 63 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups; At Day 42 for the 4 other groups.
Seroconversion Factor for Antibodies Against A/California Strain.
Seroconversion factor was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the prevaccination reciprocal HI titer.
Measured: At Day 63 from Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups; At Day 42 from Day 0 for the 4 other groups
Number of Seroconverted Subjects for Antibodies Against Flulaval Vaccine Strains.
Seroconversion defined as:
For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
For the analysis the Flulaval/placebo/unadjuvanted Arepanrix Group and the Flulaval/placebo/Arepanrix Group were pooled.
Measured: At Day 21 from Day 0 for the pooled group, Flulaval/unadjuvanted Arepanrix/placebo and Flulaval/Arepanrix/placebo Groups; at Day 63 from Day 42 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Arepanrix/placebo/Flulaval Group
Number of Seroprotected Subjects for Antibodies Against Flulaval Vaccine Strains
Seroprotection was defined as the proportion of subjects with H1N1 reciprocal Hemagglutination Inhibition (HI) titers ≥ 1:40 against the tested vaccine virus.
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
For the analysis the Flulaval/placebo/unadjuvanted Arepanrix Group and the Flulaval/placebo/Arepanrix Group were pooled.
Measured: At Day 21 for the pooled group, Flulaval/unadjuvanted Arepanrix/placebo and Flulaval/Arepanrix/placebo Groups; at Day 63 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Arepanrix/placebo/Flulaval Group
Seroconversion Factor for Antibodies Against Flulaval Vaccine Strains.
Seroconversion factor was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal Hemagglutination Inhibition (HI) titer to the prevaccination reciprocal HI titer.
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
For the analysis the Flulaval/placebo/unadjuvanted Arepanrix Group and the Flulaval/placebo/Arepanrix Group were pooled.
Measured: At Day 21 from Day 0 for the pooled group, Flulaval/unadjuvanted Arepanrix/placebo and Flulaval/Arepanrix/placebo Groups; at Day 63 from Day 42 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Arepanrix/placebo/Flulaval Group
Number of Seroconverted Subjects for Antibodies Against Flulaval Vaccine Strains
Seroconversion defined as:
For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: on Days 21 and 63 from Day 0 for the first 4 groups; on Days 42 and 63 from Day 0 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Number of Seroconverted Subjects for Antibodies Against Flulaval Vaccine Strains
Seroconversion defined as:
For initially seronegative subjects, antibody titer ≥ 1:40 after vaccination For initially seropositive subjects, antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: At Day 182 from Day 0
Number of Seroprotected Subjects for Antibodies Against Flulaval Vaccine Strains.
Seroprotection rate was defined as the proportion of subjects with H1N1 reciprocal HI titers ≥ 40 against the tested vaccine virus.
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: before vaccination and on days 21 and 63 for the first 4 groups and before vaccination and on days 42 and 63 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Number of Seroprotected Subjects for Antibodies Against Flulaval Vaccine Strains.
Seroprotection rate was defined as the proportion of subjects with H1N1 reciprocal HI titers ≥ 40 against the tested vaccine virus.
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: At Day 182 after the first dose
Seroconversion Factor for Antibodies Against Flulaval Vaccine Strains.
Seroconversion factor of the within-subject ratios of the post-vaccination reciprocal HI titer to the Day 0 reciprocal HI titer.
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: On Days 21 and 63 from Day 0 for the first 4 groups and on Days 42 and 63 from Day 0 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Seroconversion Factor for Antibodies Against Flulaval Vaccine Strains.
Seroconversion factor of the within-subject ratios of the post-vaccination reciprocal HI titer to the Day 0 reciprocal HI titer.
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: At Day 182 from Day 0
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flulaval Vaccine Strains.
Titers were expressed as geometric mean titers (GMTs).
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: On Days 0, 21 and 63 for the first 4 groups and on Days 0, 42 and 63 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flulaval Vaccine Strains.
Titers were expressed as geometric mean titers (GMTs).
Flulaval vaccines strains were A/Brisbane/59/2007 H1N1, A/Uruguay/716/2007 H3N2 and B/Brisbane/60/2008.
Measured: At Day 182 after dose 1 vaccination
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Sep 2009 (estimated)
- Study start1 Oct 2009
- Primary completion28 Dec 2009
- Study completion29 Dec 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for InfluenzaStudies of the same condition, open and under way.
- More trials run by GlaxoSmithKlineThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 611 participants (actual)
Sponsor and investigators
- Lead sponsor
- GlaxoSmithKline
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00985673
- Sponsor's protocol ID
- 113536
- Status last verified
- Sep 2016
- First submitted
- 24 Sep 2009
- Last updated
- 1 Aug 2018
- Results posted
- Yes, on ClinicalTrials.gov
- 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.
Publications
Friel D, Co M, Ollinger T, Salaun B, Schuind A, Li P, Walravens K, Ennis FA, Vaughn DW. Non-neutralizing antibody responses following A(H1N1)pdm09 influenza vaccination with or without AS03 adjuvant system. Influenza Other Respir Viruses. 2021 Jan;15(1):110-120. doi: 10.1111/irv.12780. Epub 2020 Sep 5.
PubMed 32889792Langley JM, Frenette L, Chu L, McNeil S, Halperin S, Li P, Vaughn D. A randomized, controlled non-inferiority trial comparing A(H1N1)pmd09 vaccine antigen, with and without AS03 adjuvant system, co-administered or sequentially administered with an inactivated trivalent seasonal influenza vaccine. BMC Infect Dis. 2012 Oct 30;12:279. doi: 10.1186/1471-2334-12-279.
PubMed 23110320
Study at a glance
From the registry record, last updated by the sponsor on 1 Aug 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Study to Evaluate the Safety and Immunogenicity of an A/California/7/2009 (H1N1)V-like Vaccine GSK2340274A or GSK2340273A Co-administered With Trivalent Inactivated Seasonal Influenza Vaccine in Adults 19 to 40 Years of Age
- ClinicalTrials.gov ID
- NCT00985673
- Acronym / sponsor ID
- 113536
- Conditions
- Influenza
- Keywords
- GSK Bio's influenza vaccine GSK2340274A, influenza infection, GSK Bio's influenza vaccine GSK2340273A
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 611 participants (actual)
- Lead sponsor
- GlaxoSmithKlineIndustry (pharma, biotech, devices)
- Study start
- 1 Oct 2009
- Primary completion
- 28 Dec 2009 (actual)
- Study completion
- 29 Dec 2010 (actual)
- First posted
- 28 Sep 2009 (estimated)
- Results
- Posted 30 Jan 2012
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to characterize the safety and immunogenicity of the H1N1 (swine) flu vaccines GSK2340274A and GSK2340273A when co-administered with the seasonal flu vaccine in adults 19 to 40 years of age.
Detailed description
Collaborators: United States Department of Health and Human Services, Office of Biomedical Advanced Research and Development Authority
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| Flulaval/placebo/unadjuvanted Arepanrix Group | Experimental | Biological: GSK2340273A, Biological: Seasonal trivalent influenza vaccine (TIV), Biological: Saline placebosubjects received co-administration of Flulaval vaccine and saline placebo on Day 0 followed by the unadjuvanted formulation of Arepanrix vaccine on Day 21 and Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. |
| Flulaval/placebo/Arepanrix Group | Experimental | Biological: GSK2340274A, Biological: Seasonal trivalent influenza vaccine (TIV), Biological: Saline placebosubjects received co-administration of Flulaval vaccine and saline placebo on Day 0 followed the administration of Arepanrix vaccine on Day 21 and Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. |
| Flulaval/unadjuvanted Arepanrix/placebo Group | Experimental | Biological: GSK2340273A, Biological: Seasonal trivalent influenza vaccine (TIV), Biological: Saline placebosubjects received co-administration of Flulaval vaccine and the unadjuvanted formulation of Arepanrix vaccine on Day 0 followed by the administration of the unadjuvanted formulation of Arepanrix vaccine on Day 21 and saline placebo on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. |
| Flulaval/Arepanrix/placebo Group | Experimental | Biological: GSK2340274A, Biological: Seasonal trivalent influenza vaccine (TIV), Biological: Saline placebosubjects received co-administration of Flulaval vaccine and Arepanrix vaccine on Day 0 followed by Arepanrix vaccine on Day 21 and saline placebo on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. |
| Unadjuvanted Arepanrix/placebo/Flulaval Group | Experimental | Biological: GSK2340273A, Biological: Seasonal trivalent influenza vaccine (TIV), Biological: Saline placebosubjects received co-administration of the unadjuvanted formulation of Arepanrix vaccine and saline placebo on Day 0 followed by the unadjuvanted formulation of Arepanrix vaccine on Day 21 and Flulaval vaccine on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. |
| Arepanrix/placebo/Flulaval Group | Experimental | Biological: GSK2340274A, Biological: Seasonal trivalent influenza vaccine (TIV), Biological: Saline placebosubjects received co-administration of Arepanrix vaccine and saline placebo on Day 0 followed by Arepanrix vaccine on Day 21 and Flulaval vaccine on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm. |
Who may qualify
- Ages
- 19 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (12 listed)
- Subjects who the investigator believes can and will comply with the requirements of the protocol.
- Written informed consent obtained from the subject.
- Male or female adults, 19-40 years of age at the time of the first vaccination.
- Safety laboratory tests results within the parameters specified in the protocol.
- Satisfactory baseline medical assessment by physical examination.
Key exclusion criteria (16 listed)
- Previous vaccination with an H1N1v-like virus vaccine or a medical history of physician-confirmed infection with an H1N1v-like virus.
- Prior receipt at any time of any seasonal influenza vaccine.
- Planned administration of any vaccine not foreseen by the study protocol between Day 0 and the Day 63 phlebotomy.
- Administration of any licensed vaccine within 4 weeks before the first study vaccine dose.
- Use of any investigational or non-registered product other than the study vaccines within 30 days preceding the first dose of study vaccine, or planned use during the study period.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| GSK2340274ATwo intramuscular injections | Biological | Arepanrix/placebo/Flulaval Group, Flulaval/Arepanrix/placebo Group, Flulaval/placebo/Arepanrix Group |
| GSK2340273ATwo intramuscular injections | Biological | Flulaval/placebo/unadjuvanted Arepanrix Group, Flulaval/unadjuvanted Arepanrix/placebo Group, Unadjuvanted Arepanrix/placebo/Flulaval Group |
| Seasonal trivalent influenza vaccine (TIV)Single intramuscular injection | Biological | Arepanrix/placebo/Flulaval Group, Flulaval/Arepanrix/placebo Group, Flulaval/placebo/Arepanrix Group, Flulaval/placebo/unadjuvanted Arepanrix Group, Flulaval/unadjuvanted Arepanrix/placebo Group, Unadjuvanted Arepanrix/placebo/Flulaval Group |
| Saline placeboSingle intramuscular injection | Biological | Arepanrix/placebo/Flulaval Group, Flulaval/Arepanrix/placebo Group, Flulaval/placebo/Arepanrix Group, Flulaval/placebo/unadjuvanted Arepanrix Group, Flulaval/unadjuvanted Arepanrix/placebo Group, Unadjuvanted Arepanrix/placebo/Flulaval Group |
Primary outcome
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
Time frame: 21 days after the second dose of Arepanrix vaccine (at Day 42).
The A/California vaccine virus-homologous antibody response was measured in subjects having received Flulaval vaccine co-administered with the first dose of Arepanrix vaccine, and in subjects having received two doses of Arepanrix vaccine alone. Titers were expressed as geometric mean antibody titers (GMTs).
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
Time frame: 21 days after the second dose of the unadjuvanted formulation of Arepanrix vaccine (at Day 42)
The A/California vaccine virus-homologous antibody response was measured in subjects having received Flulaval vaccine co-administered with the first dose of the unadjuvanted formulation of Arepanrix vaccine, and in subjects having received two doses of the unadjuvanted formulation of Arepanrix vaccine alone. Titers were expressed as geometric mean antibody titers (GMTs).
38 secondary outcomes
Number of Influenza-specific Cluster of Differentiation 4 (CD4) T-cells Per Million Producing Two or More Markers Within Cluster Differentiation 40 Ligand (CD40L), Interleukin-2 (IL-2), Interferon-γ (IFN-γ) and Tumor Necrosis Factor-α (TNF-α).
Time frame: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Influenza-specific Cluster of Differentiation 8 (CD8) T-cells Per Million Producing Two or More Markers Within Cluster Differentiation 40 Ligand (CD40L), Interleukin-2 (IL-2), Interferon-γ (IFN-γ) and Tumor Necrosis Factor-α (TNF-α).
Time frame: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Time frame: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Time frame: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Solicited Local Symptoms.
Time frame: During a 7-day follow-up period (Days 0-6) post-vaccination period
Number of Subjects Reporting Solicited General Symptoms.
Time frame: During a 7-day follow-up period (Days 0-6) post-vaccination period
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Time frame: On Days 0, 7, 21, 28, 42, 63 and 182
Number of Subjects Reporting Unsolicited Adverse Events (AEs).
Time frame: Within the 84-day (Days 0-83) post-vaccination period.
Number of Subjects Reporting Medically Attended Visits (MAEs).
Time frame: During the entire study period (Days 0-368).
Number of Subjects Reporting Potential Immune Diseases (pIMDs).
Time frame: During the entire study period (Days 0-406).
Number of Subjects Reporting Serious Adverse Events (SAEs).
Time frame: During the entire study period (Days 0-329).
Number of Subjects Reporting Clinical Laboratory Abnormalities in Biochemical and Haematological Parameters Assessed
Time frame: On Days 0, 7, 21, 28, 42, 63 and 182
Microneutralization Antibody Titers Against A/California/7/2009 (H1N1) Strain.
Time frame: On Days 0, 21, 42, 63 and 182
Number of Subjects With a Microneutralization Titer Greater Than or Equal to 1:28 for Antibodies Against A/California/7/2009 (H1N1) Strain.
Time frame: On Days 0, 21, 42, 63 and 182
Vaccine Response Rates (VRR) for Microneutralization Antibody Titers Against A/California/7/2009 (H1N1) Strain.
Time frame: On Days 0, 21, 42, 63 and 182
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
Time frame: 21 days after the second dose of Arepanrix vaccine (Day 63 for Flulaval/placebo/Arepanrix Group and Day 42 for Arepanrix/placebo/Flulaval Group)
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
Time frame: 21 days after the second dose of the unadjuvanted formulation of Arepanrix vaccine (Day 63 for Flulaval/placebo/unadjuvanted Arepanrix Group and Day 42 for Unadjuvanted Arepanrix/placebo/Flulaval Group)
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
Time frame: 21 days after the second dose of the pandemic vaccine (at Day 63)
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
Time frame: 21 days after the Flulaval vaccination (at Day 21).
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
Time frame: 21 days after the Flulaval vaccination (at Day 21).
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
Time frame: 21 days after the Flulaval vaccination (Day 63 for Arepanrix/placebo/Flulaval Group and Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups)
Hemagglutination Inhibition (HI) Antibody Titers Against Each of the Three Flulaval Strains.
Time frame: 21 days after the Flulaval vaccination (Day 63 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups)
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flu A/California H1N1 Strain.
Time frame: On Days 0, 21, 42 and 63
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flu A/California H1N1 Strain.
Time frame: At Day 182
Number of Seroconverted Subjects for Antibodies Against A/ California Strain.
Time frame: At Day 63 from Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups; At Day 42 from Day 0 for the 4 other groups
Number of Seroprotected Subjects for Antibodies Against A/California Strain.
Time frame: At Day 63 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups; At Day 42 for the 4 other groups.
Seroconversion Factor for Antibodies Against A/California Strain.
Time frame: At Day 63 from Day 21 for Flulaval/placebo/unadjuvanted Arepanrix and Flulaval/placebo/Arepanrix Groups; At Day 42 from Day 0 for the 4 other groups
Number of Seroconverted Subjects for Antibodies Against Flulaval Vaccine Strains.
Time frame: At Day 21 from Day 0 for the pooled group, Flulaval/unadjuvanted Arepanrix/placebo and Flulaval/Arepanrix/placebo Groups; at Day 63 from Day 42 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Arepanrix/placebo/Flulaval Group
Number of Seroprotected Subjects for Antibodies Against Flulaval Vaccine Strains
Time frame: At Day 21 for the pooled group, Flulaval/unadjuvanted Arepanrix/placebo and Flulaval/Arepanrix/placebo Groups; at Day 63 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Arepanrix/placebo/Flulaval Group
Seroconversion Factor for Antibodies Against Flulaval Vaccine Strains.
Time frame: At Day 21 from Day 0 for the pooled group, Flulaval/unadjuvanted Arepanrix/placebo and Flulaval/Arepanrix/placebo Groups; at Day 63 from Day 42 for Unadjuvanted Arepanrix/placebo/Flulaval Group and Arepanrix/placebo/Flulaval Group
Number of Seroconverted Subjects for Antibodies Against Flulaval Vaccine Strains
Time frame: on Days 21 and 63 from Day 0 for the first 4 groups; on Days 42 and 63 from Day 0 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Number of Seroconverted Subjects for Antibodies Against Flulaval Vaccine Strains
Time frame: At Day 182 from Day 0
Number of Seroprotected Subjects for Antibodies Against Flulaval Vaccine Strains.
Time frame: before vaccination and on days 21 and 63 for the first 4 groups and before vaccination and on days 42 and 63 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Number of Seroprotected Subjects for Antibodies Against Flulaval Vaccine Strains.
Time frame: At Day 182 after the first dose
Seroconversion Factor for Antibodies Against Flulaval Vaccine Strains.
Time frame: On Days 21 and 63 from Day 0 for the first 4 groups and on Days 42 and 63 from Day 0 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Seroconversion Factor for Antibodies Against Flulaval Vaccine Strains.
Time frame: At Day 182 from Day 0
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flulaval Vaccine Strains.
Time frame: On Days 0, 21 and 63 for the first 4 groups and on Days 0, 42 and 63 for the Unadjuvanted Arepanrix/placebo/Flulaval and Arepanrix/placebo/Flulaval Groups
Geometric Mean Antibody Titers (GMTs) for Hemagglutination Inhibition (HI) Antibodies Against Flulaval Vaccine Strains.
Time frame: At Day 182 after dose 1 vaccination
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Aug 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 32889792Friel D, Co M, Ollinger T, Salaun B, Schuind A, Li P, Walravens K, Ennis FA, Vaughn DW. Non-neutralizing antibody responses following A(H1N1)pdm09 influenza vaccination with or without AS03 adjuvant system. Influenza Other Respir Viruses. 2021 Jan;15(1):110-120. doi: 10.1111/irv.12780. Epub 2020 Sep 5.
- Derived from this study: PubMed 23110320Langley JM, Frenette L, Chu L, McNeil S, Halperin S, Li P, Vaughn D. A randomized, controlled non-inferiority trial comparing A(H1N1)pmd09 vaccine antigen, with and without AS03 adjuvant system, co-administered or sequentially administered with an inactivated trivalent seasonal influenza vaccine. BMC Infect Dis. 2012 Oct 30;12:279. doi: 10.1186/1471-2334-12-279.
- Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
GSK Clinical Trials study director
GlaxoSmithKline
7 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing GSK2340274A, GSK2340273A and Seasonal trivalent influenza vaccine (TIV) in people with Influenza, run by GlaxoSmithKline at 7 sites in 2 countries.
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 12 inclusion and 16 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 1 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 7 sites in United States, Canada. 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 30 Jan 2012). 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?
Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain. (time frame: 21 days after the second dose of Arepanrix vaccine (at Day 42).). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00985673, which also lists 2 linked publications.
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 1 Aug 2018.