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Immunogenicity and Safety of PrepandrixTM in Korean Subjects Aged 18 to 60 Years Old

This study has been completed.
Information provided by (Responsible Party):
GlaxoSmithKline Identifier:
First received: November 15, 2012
Last updated: July 24, 2014
Last verified: January 2014

This study will evaluate the immunogenicity and the safety of PrepandrixTM in Korean subjects. A second group of subjects will receive FluarixTM vaccine as control.

Condition Intervention Phase
Biological: PrepandrixTM
Biological: FluarixTM
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Immunogenicity and Safety of GSK Biologicals' (Pre-) Pandemic Influenza Vaccine PrepandrixTM in Korean Subjects Aged 18 to 60 Years Old

Resource links provided by NLM:

Further study details as provided by GlaxoSmithKline:

Primary Outcome Measures:
  • Serum H5N1 haemagglutination-inhibition antibody titres against vaccine strain [ Time Frame: Day 0 ] [ Designated as safety issue: No ]
  • Serum H5N1 haemagglutination-inhibition antibody titres against vaccine strain [ Time Frame: Day 42 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Occurrence of solicited local and general signs and symptoms [ Time Frame: 7-day (Day 0-6) period after each vaccination ] [ Designated as safety issue: No ]
  • Occurrence of unsolicited local and general adverse events [ Time Frame: Group A: 21 days (Day 0-20) post-dose 1 and 63 days (Day 0-62) post-dose 2; Group B: 84 days (Day 0-83) post-vaccination ] [ Designated as safety issue: No ]
  • Occurrence of Serious Adverse Events (SAEs) [ Time Frame: Entire study period (From Day 0 to 182) ] [ Designated as safety issue: No ]
  • Occurrence of potential immune mediated diseases [ Time Frame: Entire study period (From Day 0 to 182) ] [ Designated as safety issue: No ]
  • Serum H5N1 haemagglutination-inhibition antibody titres against vaccine strain in Group A [ Time Frame: Days 0, 21, and 42 ] [ Designated as safety issue: No ]
  • Serum haemagglutination-inhibition antibody titres against each vaccine strain in Group B [ Time Frame: Days 0 and 21 ] [ Designated as safety issue: No ]

Enrollment: 131
Study Start Date: December 2012
Study Completion Date: December 2013
Primary Completion Date: December 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Group A
Not Applicable
Biological: PrepandrixTM
Two intramuscular injections on Day 0 and 21
Active Comparator: Group B
Not Applicable
Biological: FluarixTM
One intramuscular injection on Day 0

Detailed Description:

Initially, 124 subjects were planned to be enrolled according to a 1:1 randomisation ratio. However, by mistake, the randomisation application was set up consistent with the vaccine supply ratio (2:1) rather than the treatment group randomization ratio (1:1). Subsequently, the protocol was amended to adjust the sample size and randomisation ratio for the study.

The study will enrol 126 subjects randomised 2:1. 84 subjects will receive Prepandrix™ and 42 subjects will receive Fluarix™.


Ages Eligible for Study:   18 Years to 60 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Subjects who the investigator believes can and will comply with the requirements of the protocol. Or subjects who the investigator believes that parent(s)/Legally Acceptable Representative(s) can and will comply with the requirements of the protocol.
  • Korean male or female subject between, and including, 18 and 60 years of age at the time of the first vaccination.
  • Written informed consent obtained from the subject/ from the parent(s)/ Legally Acceptable Representative(s).
  • Healthy subjects or free of acute aggravation of the health status as established by medical history and clinical examination before entering into the study.
  • 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, has a negative pregnancy test on the day of vaccination, and has agreed to continue adequate contraception during the entire treatment period and for two months after completion of the vaccination series.

Exclusion Criteria:

  • 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.
  • Acute disease and/or fever at the time of enrollment.
  • Subjects with a minor illness without fever may be enrolled at the discretion of the investigator.
  • Diagnosed with cancer, or treatment for cancer, within the past three years.
  • Any confirmed or suspected immunosuppressive or immunodeficient condition, including history of human immunodeficiency virus (HIV) infection.
  • Family history of congenital or hereditary immunodeficiency.
  • 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 any clinically-apparent bleeding tendency, are eligible.
  • History of any neurological disorders or seizures.
  • An acute evolving neurological disorder or history of Guillan-Barré syndrome.
  • Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose.
  • Any administration of long-acting immune-modifying drugs within three months before study start, or a planned administration during the study period.
  • Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.
  • Clinically or virologically diagnosed influenza infection within six months preceding the study start.
  • Administration of any vaccines within 30 days before vaccination, or planned administration during the study start.
  • Previous vaccination against influenza with any seasonal or pandemic vaccine within six months preceding the administration of the study vaccine.
  • Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product.
  • History of allergy or reactions likely to be exacerbated by any component of the vaccines, including history of a severe adverse reaction to a previous dose of influenza vaccine.
  • Female planning to become pregnant or planning to discontinue contraceptive precautions.
  • Child in care.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01730378

Korea, Republic of
GSK Investigational Site
Gyeonggi, Korea, Republic of, 442-723
GSK Investigational Site
Incheon, Korea, Republic of, 400-711
GSK Investigational Site
Seoul, Korea, Republic of, 152-703
GSK Investigational Site
Seoul, Korea, Republic of, 150-950
Sponsors and Collaborators
Study Director: GSK Clinical Trials GlaxoSmithKline
  More Information

No publications provided

Responsible Party: GlaxoSmithKline Identifier: NCT01730378     History of Changes
Other Study ID Numbers: 114695
Study First Received: November 15, 2012
Last Updated: July 24, 2014
Health Authority: Korea: Korea Food & Drug Administration

Keywords provided by GlaxoSmithKline:
Influenza vaccine

Additional relevant MeSH terms:
Influenza, Human
Orthomyxoviridae Infections
RNA Virus Infections
Respiratory Tract Diseases
Respiratory Tract Infections
Virus Diseases processed this record on November 20, 2014