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InfluenzaPhase 2NCT01949090

Immunogenicity and Safety Study of Different Formulations of GlaxoSmithKline (GSK) Biologicals H7N1 Influenza Vaccine Administered to Adults 65 Years of Age and Older

A Phase 2 study testing Investigational H7N1 vaccine GSK2789869A in people with Influenza, run by GlaxoSmithKline at 8 sites in 2 countries.

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

The purpose of this placebo controlled study is to evaluate the safety and immunogenicity of different formulations of GSK Biologicals H7N1 influenza vaccine in subjects 65 years of age and older. The study will evaluate safety related events and antibody immune responses to different formulations of study vaccine. Read more about this study

Who is it for?
Ages 65 years and olderHealthy volunteers can take part
Conditions the study is for
Influenza
What is being tested?
Investigational H7N1 vaccine GSK2789869A
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
363 participants
Where
8 sitesin 2 countries
Study dates
25 Sep 2013to 23 Oct 2014
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 65 years and older
  • All sexes
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • Male or female adults who are 65 years of age and older at the time of first study vaccination.
  • Written informed consent obtained from the subject.
  • Subjects who the investigator believes can and will comply with the requirements of the protocol.
  • Stable health status, as established by medical history and physical exam, and defined by absence of a health event satisfying the definition of a serious adverse event, or a change in an ongoing drug therapy due to therapeutic failure or symptoms of drug toxicity, within 1 month prior to enrollment.
  • 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.

Who cannot join

  • Presence or evidence of neurological or psychiatric diagnoses which, although stable, are deemed by the investigator to render the potential subject unable/unlikely to provide accurate safety reports.
  • Presence or evidence of substance abuse.
  • Diagnosed with cancer, or treatment for cancer within three years.
  • Persons with a history of cancer who are disease-free without treatment for three years or more are eligible.
  • Persons with a history of histologically-confirmed basal cell carcinoma of the skin successfully treated with local excision only are excepted and are eligible, but other histologic types of skin cancer are exclusionary.
  • Women who are disease-free three years or more after treatment for breast cancer and receiving long-term prophylaxis are eligible.
Show all 19Show fewer
  • Diagnosed with excessive daytime sleepiness (unintended sleep episodes during the day present almost daily for at least one month), or narcolepsy; or history of narcolepsy in subject's parent, sibling or child.
  • Presence of a temperature ≥ 38.0ºC (≥100.4ºF), or acute symptoms greater than "mild" severity on the scheduled date of first vaccination.
  • Any confirmed or suspected immunosuppressive or immunodeficient condition including history of human immunodeficiency virus (HIV) infection.
  • Receipt of systemic glucocorticoids within 30 days prior to the first dose of study vaccine/placebo, or any other cytotoxic, immunosuppressive or immune-modifying drugs within 6 months of first study vaccine/placebo dose. Topical, intra-articularly injected, or inhaled glucocorticoids, topical calcineurin inhibitors or imiquimod are allowed.
  • 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 aspirin, and without a clinically-apparent bleeding tendency, are eligible.
  • An acute evolving neurological disorder or Guillain Barré Syndrome within 42 days of receipt of prior seasonal or pandemic influenza vaccine.
  • Administration of an inactive vaccine within 14 days or of a live attenuated vaccine within 30 days before the first dose of study vaccine/placebo.
  • Planned administration of any vaccine other than the study vaccine/placebo before blood sampling at the Day 42 visit.
  • Previous administration of any H7 vaccine or physician-confirmed H7 disease.
  • Use of any investigational or non-registered product other than the study vaccine within 30 days preceding the first dose of study vaccine/placebo, or planned use during the study period.
  • Receipt of any immunoglobulins and/or any blood products within 90 days before the first dose of study vaccine/placebo, or planned administration of any of these products during the study period.
  • Any known or suspected allergy to any constituent of influenza vaccines or component used in the manufacturing process of the study vaccine including a history of anaphylactic-type reaction to consumption of eggs; or a history of severe adverse reaction to a previous influenza vaccine.
  • Any condition which, in the opinion of the investigator, prevents the subject from participating in the study.

Trial locations and contacts

8 sites in 2 countries.

8 sites in 2 countries

United States5 sites
  • GSK Investigational Site

    Hollywood, Florida, 33024

  • GSK Investigational Site

    Lenexa, Kansas, 66219

  • GSK Investigational Site

    Lexington, Kentucky, 40509

  • GSK Investigational Site

    Meridian, Idaho, 83642

  • GSK Investigational Site

    Wichita, Kansas, 67207

Other trials in United States

Canada3 sites
  • GSK Investigational Site

    Greater Sudbury, Ontario, P3E 1H5

  • GSK Investigational Site

    Toronto, Ontario, M9W 4L6

  • GSK Investigational Site

    Truro, Nova Scotia, B2N 1L2

Other trials in Canada

About this study

Official title: An Observer-blind Study to Evaluate the Safety and Immunogenicity of GSK Biologicals' Influenza Vaccine(s) GSK2789869A Administered in Adults 65 Years of Age and Older

The purpose of this placebo controlled study is to evaluate the safety and immunogenicity of different formulations of GSK Biologicals H7N1 influenza vaccine in subjects 65 years of age and older. The study will evaluate safety related events and antibody immune responses to different formulations of study vaccine.

Conditions
Influenza
Being tested
Investigational H7N1 vaccine GSK2789869A, Placebo
Keywords
H7N1, AS03 adjuvant, Safety, Immunogenicity, Influenza, Adults, Elderly adults
Medical subject headings
Influenza, Human

What participants receive

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

  • Investigational H7N1 vaccine GSK2789869ABiological

    Two doses of GSK2789869A H7N1 vaccine administered intramuscularly to the deltoid region at Day 0 and Day 21.

  • PlaceboBiological

    Two doses of placebo administered intramuscularly to the deltoid region at Day 0 and Day 21.

Study groups in NCT01949090
Study groupRoleWhat they receive
GSK2789869A F1 GroupExperimentalHealthy male and female adults, 65 years of age and older, who received two doses of GSK2789869A H7N1 vaccine Formulation 1 (F1), administered intramuscularly in the deltoid region of the non-dominant arm at Day 0 and of the dominant arm at Day 21.
Receives: Biological: Investigational H7N1 vaccine GSK2789869A
GSK2789869A F2 GroupExperimentalHealthy male and female adults, 65 years of age and older, who received two doses of GSK2789869A H7N1 vaccine Formulation 2 (F2), administered intramuscularly in the deltoid region of the non-dominant arm at Day 0 and of the dominant arm at Day 21.
Receives: Biological: Investigational H7N1 vaccine GSK2789869A
GSK2789869A F3 GroupExperimentalHealthy male and female adults, 65 years of age and older, who received two doses of GSK2789869A H7N1 vaccine Formulation 3 (F3), administered intramuscularly in the deltoid region of the non-dominant arm at Day 0 and of the dominant arm at Day 21.
Receives: Biological: Investigational H7N1 vaccine GSK2789869A
GSK2789869A F4 GroupExperimentalHealthy male and female adults, 65 years of age and older, who received two doses of GSK2789869A H7N1 vaccine Formulation 4 (F4), administered intramuscularly in the deltoid region of the non-dominant arm at Day 0 and of the dominant arm at Day 21.
Receives: Biological: Investigational H7N1 vaccine GSK2789869A
Placebo GroupPlacebo comparatorHealthy male and female adults, 65 years of age and older, who received two doses of Placebo, administered intramuscularly in the deltoid region of the non-dominant arm at Day 0 and of the dominant arm at Day 21.
Receives: Biological: Placebo

What is being measured

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

  1. Number of Seroconverted (SCR) Subjects for Hemagglutination Inhibition (HI) Antibodies Against the Flu A/Mallard/NL/12/2000 (H7N1) Virus Strain

    Seroconversion was defined as: For initially seronegative subjects [antibody titer below (<) 10 post-vaccination], antibody titer greater than or equal to (≥) 40 after vaccination; For initially seropositive subjects (antibody titer ≥ 10 prior to vaccination), antibody titer after vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was A/mallard/Netherlands/12/2000 NIBRG-63 (H7N1) (Flu A/mallard/NL/12/2000 H7N1).

    Measured: At Day 42

  2. Number of Subjects Who Were Seroprotected for HI Antibodies Against the Flu A/Mallard/NL/12/2000 (H7N1) Virus Strain

    A seroprotected subject was defined as a vaccinated subject with a serum HI titer greater than or equal to (≥) 1:40, that usually is accepted as indicating protection.

    Measured: At Day 42

  3. Geometric Mean Fold Rise (GMFR) for HI Antibodies Against Flu A/Mallard/NL/12/2000 (H7N1) Virus Strain

    GMFR, also known as seroconversion factor (SCR) or mean geometric increase (MGI), was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination (Day 0) reciprocal HI titer for the vaccine virus.

    Measured: At Day 42

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

    Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = significant pain at rest; prevented normal activities as assessed by inability to attend/do work or school. Grade 3 redness/swelling = redness/swelling spreading beyond 100 millimeters (mm) of injection site.

    Measured: During the 7-day (Days 0-6) post-vaccination period following each dose and across doses

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

    Assessed solicited general symptoms were fatigue, gastrointestinal symptoms (symptoms included nausea, vomiting, diarrhoea and/or abdominal pain), headache, joint pain at other location, muscle aches, shivering, sweating and fever [defined as axillary temperature equal to or above (≥) 38 degrees Celsius (°C)]. Any = occurrence of the symptom regardless of intensity grade or relationship to vaccination. Grade 3 symptom = general symptom that prevented normal everyday activities as assessed by inability to attend/do work or school, or required intervention of a physician/healthcare provider. Grade 3 fever = temperature > 39.0 °C. Related = symptom assessed by the investigator as related to the vaccination.

    Measured: During the 7-day (Days 0-6) post-vaccination period following each dose and across doses

  6. Number of Subjects With Abnormal Haematological and Biochemical Laboratory Values

    Among analysed biochemical parameters were alanine aminotransferase [ALT], aspartate aminotransferase [AST], basophils [BAS], creatinine [CRE], eosinophils [EOS], hematocrit [HEM], hemoglobin [HgB], lymphocytes [LYM], monocytes [MON], neutrophils [NEU], platelets [PLA], red blood cells [RBC] and white blood cells [WBC].

    Measured: At Day 0

  7. Number of Subjects With Abnormal Haematological and Biochemical Laboratory Values

    Among analysed biochemical parameters were alanine aminotransferase [ALT], aspartate aminotransferase [AST], basophils [BAS], creatinine [CRE], eosinophils [EOS], hematocrit [HEM], hemoglobin [HgB], lymphocytes [LYM], monocytes [MON], neutrophils [NEU], platelets [PLA], red blood cells [RBC] and white blood cells [WBC].

    Measured: At Day 7

  8. Number of Subjects With Abnormal Haematological and Biochemical Laboratory Values

    Among analysed biochemical parameters were alanine aminotransferase [ALT], aspartate aminotransferase [AST], basophils [BAS], creatinine [CRE], eosinophils [EOS], hematocrit [HEM], hemoglobin [HgB], lymphocytes [LYM], monocytes [MON], neutrophils [NEU], platelets [PLA], red blood cells [RBC] and white blood cells [WBC].

    Measured: At Day 21

  9. Number of Subjects With Abnormal Haematological and Biochemical Laboratory Values

    Among analysed biochemical parameters were alanine aminotransferase [ALT], aspartate aminotransferase [AST], basophils [BAS], creatinine [CRE], eosinophils [EOS], hematocrit [HEM], hemoglobin [HgB], lymphocytes [LYM], monocytes [MON], neutrophils [NEU], platelets [PLA], red blood cells [RBC] and white blood cells [WBC].

    Measured: At Day 28

  10. Number of Subjects With Abnormal Haematological and Biochemical Laboratory Values

    Among analysed biochemical parameters were alanine aminotransferase [ALT], aspartate aminotransferase [AST], basophils [BAS], creatinine [CRE], eosinophils [EOS], hematocrit [HEM], hemoglobin [HgB], lymphocytes [LYM], monocytes [MON], neutrophils [NEU], platelets [PLA], red blood cells [RBC] and white blood cells [WBC].

    Measured: At Day 42

  11. Number of Subjects With Any Medically-attended Adverse Events (MAEs)

    MAEs were defined as events for which the subject received medical attention defined as hospitalization, an emergency room visit, or a visit to or from medical personnel (medical doctor) for any reason. Any MAE(s) = Occurrence of any MAE(s) regardless of intensity grade or relation to vaccination.

    Measured: From Day 0 up to Day 42

  12. Number of Subjects With Any Potential Immune-mediated Diseases (pIMDs)

    Any pIMD was defined as an AE including autoimmune diseases and other mediated inflammatory disorders and assessed by the investigator as specific to the treatment administration.

    Measured: From Day 0 up to Day 42

  13. Number of Subjects With Any 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.

    Measured: From Day 0 up to Day 42

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

    SAEs assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

    Measured: From Day 0 up to Day 42

Secondary outcomes (20)
  1. Number of Subjects With HI Antibody Concentrations Above the Cut-off Value for Vaccine-homologous (H7N1)

    Seropositivity cut-off values assessed were equal to or above (≥) 1:10 in the sera of subjects seronegative before vaccination. The flu strain assessed was Flu A/mallard/NL/12/2000 (H7N1).

    Measured: At Days 0, 21, 42 and Months 6 and 12

  2. Titers for Antibodies Against Flu A/Mallard/NL/12/2000 Strain of Influenza Disease Vaccine-homologous (H7N1)

    Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was equal to or above (≥) 1:10. The flu strain assessed was Flu A/mallard/NL/12/2000 (H7N1).

    Measured: At Days 0, 21, 42 and Months 6 and 12

  3. Number of Seroprotected (SPR) Subjects Against HI Antibodies for Vaccine-homologous (H7N1)

    Seroprotection (SPR) was defined as the proportion of subjects with H7N1 reciprocal HI titers equal to or above (≥) 1:40 against the tested vaccine virus. The flu strain assessed was Flu A/mallard/NL/12/2000 (H7N1).

    Measured: At Days 0, 21 and 42 and at Months 6 and 12

  4. Number of Seroconverted (SCR) Subjects for HI Antibodies for Vaccine-homologous (H7N1)

    SCR was defined as the proportion of subjects who had either a pre-vaccination reciprocal HI titer < 10 and a post-vaccination reciprocal titer ≥ 40, or a pre-vaccination reciprocal HI titer ≥ 10 and at least a 4-fold increase in post-vaccination reciprocal titer against the vaccine virus. The flu strain assessed was Flu A/mallard/NL/12/2000 (H7N1).

    Measured: At Days 21 and 42 and at Months 6 and 12

  5. Geometric Mean Fold Rise (GMFR) for HI Antibodies Against Flu A/Mallard/NL/12/2000 Strain of Influenza Disease Vaccine-homologous (H7N1)

    GMFR, also known as seroconversion factor (SCF), was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination reciprocal HI titer for the vaccine virus. The flu strain assessed was Flu A/mallard/NL/12/2000 (H7N1).

    Measured: At Days 21 and 42 and at Months 6 and 12

  6. Number of Subjects With HI Antibody Concentrations Above the Cut-off Value for Vaccine-heterologous (H7N9)

    Seropositivity cut-off values assessed were equal to or above (≥) 1:10 in the sera of subjects seronegative before vaccination. The flu strain assessed was Flu A/Shanghai/2/2013 (H7N9).

    Measured: At Days 0, 21 and 42 and at Months 6 and 12

  7. Titers for Antibodies Against Flu A/Shanghai/2/2013 Strain of Influenza Disease Vaccine-heterologous (H7N9)

    Titers are presented as geometric mean titers (GMTs). The reference seropositivity cut-off value was equal to or above (≥) 1:10. The flu strain assessed was Flu A/Shanghai/2/2013 (H7N9).

    Measured: At Days 0, 21 and 42 and at Months 6 and 12

  8. Number of Seroprotected (SPR) Subjects Against HI Antibodies for Vaccine-heterologous (H7N9)

    Seroprotection (SPR) was defined as the proportion of subjects with H7N9 reciprocal HI titers equal to or above (≥) 1:40 against the tested vaccine virus. The flu strain assessed was Flu A/Shanghai/2/2013 (H7N9).

    Measured: At Days 0, 21 and 42 and at Months 6 and 12

  9. Number of Seroconverted (SCR) Subjects for HI Antibodies for Vaccine-heterologous (H7N9)

    SCR was defined as the proportion of subjects who had either a pre-vaccination reciprocal HI titer < 10 and a post-vaccination reciprocal titer ≥ 40, or a pre-vaccination reciprocal HI titer ≥ 10 and at least a 4-fold increase in post-vaccination reciprocal titer against the vaccine virus. The flu strain assessed was Flu A/Shanghai/2/2013 (H7N9).

    Measured: At Days 21 and 42 and at Months 6 and 12

  10. Geometric Mean Fold Rise (GMFR) for HI Antibodies Against Flu A/Shanghai/2/2013 Strain of Influenza Disease Vaccine-heterologous (H7N9)

    GMFR, also known as seroconversion factor (SCF), was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination reciprocal HI titer for the vaccine virus. The flu strain assessed was Flu A/Shanghai/2/2013 (H7N9).

    Measured: At Days 21 and 42 and at Months 6 and 12

  11. Number of Subjects With HI Neutralizing Antibody Concentrations Above the Cut-off Value for Vaccine-homologous (H7N1)

    Seropositivity cut-off values assessed were equal to or above (≥) 1:28 in the sera of subjects seronegative before vaccination. The flu strain assessed was Flu A/mallard/NL/12/2000 (H7N1).

    Measured: At Days 0, 21 and 42 and Month 6

  12. Titers for Serum Neutralizing Antibodies Against Flu A/Mallard/NL/12/2000 Strain of Influenza Disease Vaccine-homologous (H7N1)

    Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/mallard/NL/12/2000. The reference seropositivity cut-off value was ≥ 1:28.

    Measured: At Days 0, 21 and 42 and at Month 6

  13. Vaccine Response Rate (VRR) for Microneutralization (MN) Antibodies Against the Flu A/Mallard/NL/12/2000 (H7N1) Virus Strain

    Vaccine response was defined as: For initially seronegative subjects antibody titer ≥ 1:56 at post-vaccination]; For initially seropositive subjects antibody titer at post-vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/mallard/NL/12/2000 (H7N1).

    Measured: At Days 21 and 42 and at Month 6

  14. Number of Subjects With HI Neutralizing Antibody Concentrations Above the Cut-off Value for Vaccine-heterologous (H7N9)

    Seropositivity cut-off values assessed were equal to or above (≥) 1:28 in the sera of subjects seronegative before vaccination. The flu strain assessed was Flu A/Anhui/1/2013 (H7N9).

    Measured: At Days 0, 21 and 42 and at Month 6

  15. Titers for Antibodies Against Flu A/Anhui/1/2013 Strain of Influenza Disease Vaccine-homologous (H7N9)

    Titers are presented as geometric mean titers (GMTs). The flu strain assessed was Flu A/Anhui/1/2013. The reference seropositivity cut-off value was ≥ 1:28.

    Measured: At Days 0, 21 and 42 and at Month 6

  16. Vaccine Response Rate (VRR) for Microneutralization (MN) Antibodies Against the Flu A/Anhui/1/2013 (H7N9) Virus Strain

    Vaccine response was defined as: For initially seronegative subjects antibody titer ≥ 1:56 at post-vaccination]; For initially seropositive subjects antibody titer at post-vaccination ≥ 4 fold the pre-vaccination antibody titer. The Flu strain assessed was Flu A/Anhui/1/2013 (H7N9).

    Measured: At Days 21 and 42 and at Month 6

  17. Number of Subjects With Any Medically-attended Adverse Events (MAEs)

    MAEs were defined as events for which the subject received medical attention defined as hospitalization, an emergency room visit, or a visit to or from medical personnel (medical doctor) for any reason. Any MAE(s) = Occurrence of any MAE(s) regardless of intensity grade or relation to vaccination. Analysis of intensity and relationship to vaccination of MAEs was not performed.

    Measured: From Day 42 up to Month 12

  18. Number of Subjects With Any Potential Immune-mediated Diseases (pIMDs)

    An pIMD was defined as an AE including autoimmune diseases and other mediated inflammatory disorders and assessed by the investigator as specific to the treatment administration.

    Measured: From Day 42 up to Month 12

  19. Number of Subjects With Any 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.

    Measured: During the 21-day (From Day 0 to Day 20) post-vaccination period after each dose

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

    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 (From Day 0 up to Month 12)

Timeline

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

  1. First posted24 Sep 2013 (estimated)
  2. Study start25 Sep 2013
  3. Primary completion4 Dec 2013
  4. Study completion23 Oct 2014

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
363 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01949090
Sponsor's protocol ID
200613
Status last verified
Nov 2017
First submitted
19 Sep 2013
Last updated
17 Nov 2017

Publications

  • Madan A, Ferguson M, Rheault P, Seiden D, Toma A, Friel D, Soni J, Li P, Innis BL, Schuind A. Immunogenicity and safety of an AS03-adjuvanted H7N1 vaccine in adults 65years of age and older: A phase II, observer-blind, randomized, controlled trial. Vaccine. 2017 Apr 4;35(15):1865-1872. doi: 10.1016/j.vaccine.2017.02.057. Epub 2017 Mar 13.

    PubMed 28302407

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Investigational H7N1 vaccine GSK2789869A in people with Influenza, run by GlaxoSmithKline at 8 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 5 inclusion and 19 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 17 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 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. Some participants in this study may receive a placebo. 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 17 Nov 2017). 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?

Number of Seroconverted (SCR) Subjects for Hemagglutination Inhibition (HI) Antibodies Against the Flu A/Mallard/NL/12/2000 (H7N1) Virus Strain (time frame: At Day 42). The study lists 14 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 NCT01949090, which also lists 1 linked publication.

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 17 Nov 2017.

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