Last updated: 11/03/2018 21:27:48

Immunogenicity and safety study of GlaxoSmithKline (GSK) Biologicals’ influenza vaccine(s) GSK3277510A and GSK3277509A in adults 18 to 60 years of age

GSK study ID
201300
Clinicaltrials.gov ID
EudraCT ID
EU CT Number
Not applicable
Trial status
Other
Other
Overview
Eligibility
Locations
Study documents
Results summary
Plain language summaries
Additional information

Trial overview

Official title: An observer-blind study to evaluate the safety and immunogenicity of GSK Biologicals’ influenza vaccine(s) GSK3277510A and GSK3277509A administered in adults 18 to 60 years of age
Trial description: The purpose of this study is to evaluate the safety and immunogenicity of different formulations of GSK Biologicals’ H7N9 influenza vaccine in subjects 18 to 60 years of age.
Primary purpose:
Prevention
Trial design:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Allocation:
Randomized
Primary outcomes:

Humoral immune response in terms of vaccine-homologous hemagglutination inhibition (HI) antibody titers

Timeframe: At Day 42.

Occurrence of each solicited local symptom

Timeframe: During a 7-day follow-up period (i.e., day of vaccination and 6 subsequent days) after each vaccination.

Occurrence of each solicited general symptom

Timeframe: During a 7-day follow-up period (i.e., day of vaccination and 6 subsequent days) after each vaccination.

Occurrence of clinical safety laboratory abnormalities reported for samples

Timeframe: At the Day 0, 7, 21, 28 and 42 visits.

Occurrence of unsolicited adverse events (AEs)

Timeframe: 21 days after each dose.

Occurrence of Medically Attended Adverse Events (MAEs), potential Immune Mediated Diseases (pIMDs) and Serious Adverse Events (SAEs)[Active Phase]

Timeframe: From Day 0 until Day 42.

Secondary outcomes:

Evaluation of adjuvant effect as assessed by vaccine-homologous hemagglutination inhibition (HI) antibody titers

Timeframe: At Day 42.

Humoral immune response in terms of vaccine-homologous hemagglutination inhibition (HI) antibody titers for plain antigen vaccine group

Timeframe: At Day 42.

Humoral immune response in terms of vaccine-homologous (H7N9) HI antibody titers.

Timeframe: GMTs and Seropositivity rates at Days 0, 21, 42 and Months 6 and 12. SCR and MGI at Days 21, 42 (Placebo group only) and Months 6 and 12. SPR at Days 0, 21, 42 (Placebo group only) and Months 6 and 12.

Humoral immune response in terms of vaccine-homologous (H7N9) neutralizing (MN) antibody titres.

Timeframe: GMTs and Seropositivity rates at the Days 0, 21, 42 and Month 6 visits. VRR at Days 21, 42 and Month 6 visits.

Humoral immune response in terms of vaccine-homologous (H7N9) HI antibody titers by age stratum.

Timeframe: GMTs, Seropositivity rates and SPR at Days 0, 21, 42 and Months 6 and 12. SCR and MGI at Days 21, 42 and Months 6 and 12.

Humoral immune response in terms of vaccine homologous (H7N9) neutralizing (MN) antibody titers for each study group by age stratum (18-40 years; 41-60 years)

Timeframe: GMTs and Seropositivity rates at Days 0, 21, 42 and Month 6. VRR at Days 21, 42 and Month 6.

Occurrence of MAEs, pIMDs and SAEs

Timeframe: Until the Month 12 visit.

Interventions:
  • Biological/vaccine: Investigational H7N9 vaccine GSK3277510A
  • Biological/vaccine: Investigational H7N9 vaccine GSK3277509A
  • Biological/vaccine: Placebo
  • Enrollment:
    0
    Primary completion date:
    2016-04-06
    Observational study model:
    Not applicable
    Time perspective:
    Not applicable
    Clinical publications:
    Not applicable
    Medical condition
    Influenza
    Product
    GSK3277510A
    Collaborators
    Not applicable
    Study date(s)
    March 2016 to May 2017
    Type
    Interventional
    Phase
    1

    Participation criteria

    Sex
    Female & Male
    Age
    18 - 60 years
    Accepts healthy volunteers
    Yes
    • Male or female adults who are 18 to 60years of age (inclusive) at the time of first study vaccination.
    • Written informed consent obtained from subject.
    • 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.

    Trial location(s)

    This study does not involve prospective enrollment of participants.

    Study documents

    No study documents available.

    Results overview

    Study Results yet to be posted

    Recruitment status
    Other
    Actual primary completion date
    Not applicable
    Actual study completion date
    Not applicable

    Plain language summaries

    Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.

    Additional information about the trial

    Additional information
    Not applicable
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