Trial to Evaluate the Efficacy of GSK Biologicals' Influenza Vaccine GSK2186877A in Adults 65 Year of Age and Older

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
GlaxoSmithKline
ClinicalTrials.gov Identifier:
NCT00753272
First received: September 12, 2008
Last updated: July 11, 2013
Last verified: November 2012
Results First Received: April 26, 2012  
Study Type: Interventional
Study Design: Allocation: Randomized;   Endpoint Classification: Efficacy Study;   Intervention Model: Parallel Assignment;   Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor);   Primary Purpose: Prevention
Condition: Influenza Disease
Interventions: Biological: GSK Bio's influenza vaccine GSK2186877A
Biological: Fluarix TM

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Subjects were vaccinated during the pre-influenza season at Day 0, were contacted by phone during the surveillance period from mid November to the end of the influenza season (April-May) and were contacted by phone at Days 270 and 365 for the Year 1 influenza season 2008/2009 and the Year 2 influenza season 2009/2010.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
For lot-to-lot consistency analyses after Dose 1 at Day 0 of the Year 1, FluNG Group was divided in 3 sub-groups: FluNG Lot 1 Group, FluNG Lot 2 Group and FluNG Lot 3 Group: subjects received 1 dose of FluNG vaccine Lot 1, 2 or 3 at Day 0 of the Year 1. They all received Dose 2 at Day 0 of the Year 2, again from 3 different lots.

Reporting Groups
  Description
FluNG Group subjects received 2 doses (1 dose per season) of FluNG vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).
Fluarix Group subjects received 2 doses (1 dose per season) of Fluarix™ vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).

Participant Flow:   Overall Study
    FluNG Group     Fluarix Group  
STARTED     21893     21802  
COMPLETED     16911     16895  
NOT COMPLETED     4982     4907  
Adverse Event                 878                 869  
Protocol Violation                 28                 46  
Withdrawal by Subject                 2481                 2407  
Lost to Follow-up                 491                 497  
Unspecified                 1104                 1088  



  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
  Description
FluNG Group subjects received 2 doses (1 dose per season) of FluNG vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).
Fluarix Group subjects received 2 doses (1 dose per season) of Fluarix™ vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).
Total Total of all reporting groups

Baseline Measures
    FluNG Group     Fluarix Group     Total  
Number of Participants  
[units: participants]
  21893     21802     43695  
Age  
[units: Years]
Mean ± Standard Deviation
     
Years     73.5  ± 6.09     73.5  ± 6.16     73.5  ± 6.13  
Gender  
[units: Subjects]
     
Female     12549     12422     24971  
Male     9344     9380     18724  



  Outcome Measures
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1.  Primary:   Number of Subjects Reporting Polymerase Chain Reaction (PCR)-Confirmed Influenza A and/or B Infection.   [ Time Frame: After the first dose during the corresponding surveillance period (from mid November 2008 to the end of April 2009 (end of influenza season)) ]

2.  Primary:   Serum Hemagglutination-inhibition (HI) Antibody Titers, Against Each of the 3 Vaccine Influenza Strains, in the FluNG Groups.   [ Time Frame: At Days 0 (pre-vaccination Dose 1) and 21 (post-vaccination Dose 1) of the first year (2008/2009) of the study ]

3.  Secondary:   Number of Subjects Reporting Polymerase Chain Reaction (PCR)-Confirmed Influenza A and/or B Infection.   [ Time Frame: During the whole surveillance period (from mid November 2008 to end of April 2009 and from mid November 2009 to end of April 2010) ]
  Hide Outcome Measure 3

Measure Type Secondary
Measure Title Number of Subjects Reporting Polymerase Chain Reaction (PCR)-Confirmed Influenza A and/or B Infection.
Measure Description Occurrence of PCR-confirmed influenza A and/or B infection, due to any matching or drift influenza strain relative to the vaccine strains (i.e. not emerging novel human influenza strain like H1N1v). PCR-confirmed influenza (PCI) was defined as an episode of influenza-like illness (ILI) occurring after the administration of the study vaccine for which a nasal and throat swab specimen yields influenza virus A and/or B by reverse transcription polymerase chain reaction (RT-PCR) analysis.
Time Frame During the whole surveillance period (from mid November 2008 to end of April 2009 and from mid November 2009 to end of April 2010)  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
The According-To-Protocol cohort for efficacy included all eligible subjects from the Total Vaccinated cohort (e.g. who complied with the protocol, with no elimination criteria assigned during the study), who had started their first surveillance period, who had not received a seasonal influenza vaccine not foreseen in the protocol.

Reporting Groups
  Description
FluNG Group subjects received 2 doses (1 dose per season) of FluNG vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).
Fluarix Group subjects received 2 doses (1 dose per season) of Fluarix™ vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).

Measured Values
    FluNG Group     Fluarix Group  
Number of Participants Analyzed  
[units: participants]
  20579     20458  
Number of Subjects Reporting Polymerase Chain Reaction (PCR)-Confirmed Influenza A and/or B Infection.  
[units: Subjects]
  262     296  

No statistical analysis provided for Number of Subjects Reporting Polymerase Chain Reaction (PCR)-Confirmed Influenza A and/or B Infection.



4.  Secondary:   Number of Subjects Reporting Culture-confirmed Influenza A and/or B Infection.   [ Time Frame: During the whole surveillance period (from mid November 2008 to end of April 2009 and from mid November 2009 to end of April 2010) ]

5.  Secondary:   Number of Subjects Reporting Pneumonia or Clinical Influenza After the First Dose of Vaccine.   [ Time Frame: During the influenza peak season within the first surveillance period (the influenza peak season being defined per country, falling somewhere between mid November 2008 to end of April 2009) ]

6.  Secondary:   Number of Subjects Reporting All-cause Death After the First Dose of Vaccine.   [ Time Frame: During the influenza peak season within the first surveillance period (the influenza peak season being defined per country, falling somewhere between mid November 2008 to end of April 2009) ]

7.  Secondary:   Number of Subjects Reporting Hospitalization Due to Respiratory Diseases After the First Dose of Vaccine   [ Time Frame: During the influenza peak season within the first surveillance period (the influenza peak season being defined per country, falling somewhere between mid November 2008 to end of April 2009) ]
  Hide Outcome Measure 7

Measure Type Secondary
Measure Title Number of Subjects Reporting Hospitalization Due to Respiratory Diseases After the First Dose of Vaccine
Measure Description Respiratory disease: A diagnosis of respiratory disease included: acute respiratory infections, other diseases of upper respiratory tract, pneumonia and influenza, chronic obstructive pulmonary disease and allied conditions, pneumoconioses and other lung diseases due to external agents, other diseases of respiratory system. In case the event has a fatal outcome, the diagnosis can also be confirmed by autopsy.
Time Frame During the influenza peak season within the first surveillance period (the influenza peak season being defined per country, falling somewhere between mid November 2008 to end of April 2009)  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
The One-Dose According-To-Protocol cohort for efficacy for peak season included all subjects from the One-Dose ATP cohort for efficacy who did not drop out from the study before the start of their first influenza peak season.

Reporting Groups
  Description
FluNG Group subjects received 2 doses (1 dose per season) of FluNG vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).
Fluarix Group subjects received 2 doses (1 dose per season) of Fluarix™ vaccine during the Northern Hemisphere (NH) vaccination periods. One dose at Day 0 of the Year 1 and one dose at Day 0 of the Year 2 (= Day 365 Year 1).

Measured Values
    FluNG Group     Fluarix Group  
Number of Participants Analyzed  
[units: participants]
  21394     21337  
Number of Subjects Reporting Hospitalization Due to Respiratory Diseases After the First Dose of Vaccine  
[units: Subjects]
  84     89  

No statistical analysis provided for Number of Subjects Reporting Hospitalization Due to Respiratory Diseases After the First Dose of Vaccine



8.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Adverse Events (AEs) of Specific Interest Including Autoimmune Disease (AID).   [ Time Frame: Within 365 days after the first dose (from Dose 1 at Day 0 up to Day 365 for the Year 2008/2009) ]

9.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Adverse Events (AEs) of Specific Interest Including Autoimmune Disease (AID).   [ Time Frame: Within 365 days after the second dose (from Dose 1 at Day 0 up to Day 365 for the Year 2009/2010) ]

10.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Adverse Events (AEs) of Specific Interest Including Autoimmune Disease (AID).   [ Time Frame: During the entire study period (during the 365 days of follow-up after each vaccination at Year 2008/2009 and Year 2009/2010) ]

11.  Secondary:   Number of Subjects Reporting Any and Related to Vaccination Serious Adverse Events (SAEs).   [ Time Frame: During the entire study period (during the 365 days of follow-up after each vaccination at Year 2008/2009 and Year 2009/2010) ]

12.  Secondary:   Number of Subjects Reporting Any and Severe (Grade 3) Solicited Local Symptoms.   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the first year (2008/2009) ]

13.  Secondary:   Number of Days With Any Grade of Solicited Local Symptoms   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the first year (2008/2009) ]

14.  Secondary:   Number of Subjects Reporting Any and Severe (Grade 3) Solicited Local Symptoms   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the second year (2009/2010) ]

15.  Secondary:   Number of Days With Any Grade of Solicited Local Symptoms.   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the second year (2009/2010) ]

16.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Solicited General Symptoms   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the first year (2008/2009) ]

17.  Secondary:   Number of Days With Any Grade of Solicited General Symptoms   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the first year (2008/2009) ]

18.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related Solicited General Symptoms.   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the second year (2009/2010) ]

19.  Secondary:   Number of Days With Any Grade of Solicited General Symptoms.   [ Time Frame: During the 7-day (Days 0-6) post-vaccination period, the second year (2009/2010) ]

20.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Unsolicited Adverse Events (AEs).   [ Time Frame: Within 21 days (Days 0-20) after the first dose (Year 2008/2009) ]

21.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Unsolicited Adverse Events (AEs).   [ Time Frame: Within 21 days (Days 0-20) after the second dose (Year 2009/2010) ]

22.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Unsolicited AEs With Medically Attended Visit   [ Time Frame: Within 180 days (Days 0-179) after the first dose (Year 2008/2009) ]

23.  Secondary:   Number of Subjects Reporting Any, Severe (Grade 3) and Related to Vaccination Unsolicited AEs With Medically Attended Visit.   [ Time Frame: Within 180 days (Days 0-179) after the second dose (Year 2009/2010) ]

24.  Secondary:   Serum Hemagglutination-inhibition (HI) Antibody Titer Against Each of the 3 Vaccine Influenza Strains.   [ Time Frame: At Days 0 (pre-vaccination Dose 1) and 21 (post-vaccination Dose 1) of the first year (2008/2009) of the study ]

25.  Secondary:   Serum Hemagglutination-inhibition (HI) Antibody Titer Against Each of the 3 Vaccine Influenza Strains   [ Time Frame: At Days 0 (pre-vaccination Dose 2) and 21 (post-vaccination Dose 2) of the second year (2009/2010) of the study ]

26.  Secondary:   Serum Hemagglutination-inhibition (HI) Antibody Titer Against Each of the 3 Vaccine Influenza Strains.   [ Time Frame: At Days 0 (pre-vaccination Dose 1), 21 (post-vaccination Dose 1) and 180 (post-vaccination Dose 1) of the first year (2008/2009) of the study ]

27.  Secondary:   Serum Hemagglutination-inhibition (HI) Antibody Titer Against Each of the 3 Vaccine Influenza Strains.   [ Time Frame: At Days 0 (pre-vaccination Dose 2), 21 (post-vaccination Dose 2) and 180 (post-vaccination Dose 2) of the second year (2009/2010) of the study ]

28.  Secondary:   Number of Seroconverted Subjects for HI Antibodies Against Each of the 3 Vaccine Influenza Strains   [ Time Frame: At Day 21 of the first year (2008/2009) of the study. ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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