Evaluation of GlaxoSmithKline Biologicals' Boostrix® Vaccine in Comparison With Decavac™ Vaccine.

This study has been completed.
Sponsor:
Information provided by:
GlaxoSmithKline
ClinicalTrials.gov Identifier:
NCT00835237
First received: February 2, 2009
Last updated: January 5, 2012
Last verified: February 2011
  Purpose

This phase IIIb, observer-blind study will evaluate the immunogenicity and safety of GSK Biologicals' Boostrix® vaccine in adults (extending indication) aged 65 years or older.


Condition Intervention Phase
Diphtheria
Pertussis
Diphtheria-Tetanus-acellular Pertussis Vaccines
Tetanus
Biological: Boostrix®
Biological: Decavac™
Phase 3

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
Official Title: Evaluation of GSK Biologicals' Boostrix® Vaccine When Compared With Decavac™ in Adults Aged 65 Years or Older.

Resource links provided by NLM:


Further study details as provided by GlaxoSmithKline:

Primary Outcome Measures:
  • Number of Subjects With Antibody Concentration Against Vaccine Antigens, Above a Protocol Defined Cut-off Value [ Time Frame: One month after vaccination. ] [ Designated as safety issue: No ]

    Antibodies against vaccine antigens assessed were: anti-diphtheria (anti-D) and anti-tetanus (anti-T).

    Anti-D antibody cut-off value assessed was ≥ 0.1 International Unit per milliliter (IU/mL)

    Anti-T antibody cut-off values assessed were ≥ 0.1 IU/mL and ≥ 1.0 IU/mL


  • Anti-pertussis Toxoid (PT), Anti-filamentous Haemagglutinin (FHA) and Anti-pertactin (PRN) Antibodies Concentration [ Time Frame: Before (PRE) and one month after vaccination (POST) ] [ Designated as safety issue: No ]
    Concentration for anti-PT, anti-FHA and anti-PRN antibodies given as geometric mean concentration (GMC) in Enzyme-Linked Immuno Sorbent Assay (ELISA) units per millilitre (EL.U/mL)


Secondary Outcome Measures:
  • Anti-T and Anti-D Antibody Concentrations [ Time Frame: Before (PRE) and one month after vaccination (POST) ] [ Designated as safety issue: No ]
    Concentrations for anti-T and anti-D antibodies given as GMC in IU/mL.

  • Number of Subjects With Vaccine Response for Anti-T and Anti-D Antibodies Concentrations Above the Cut-off [ Time Frame: One month after vaccination ] [ Designated as safety issue: No ]

    Booster response defined as :

    For initially seronegative subjects (< 0.1 IU/mL), antibody concentration ≥ 0.4 IU/mL one month after vaccination.

    For initially seropositive subjects (≥ 0.1 IU/mL): antibody concentration one month after vaccination ≥ 4 fold the pre-vaccination antibody concentration.


  • Number of Subjects With Vaccine Response for Anti-PT, Anti-FHA and Anti-PRN Antibodies Concentrations Above the Cut-off [ Time Frame: One month after vaccination ] [ Designated as safety issue: No ]

    Booster response defined as :

    For initially seronegative subjects (< 5 EL.U/mL), antibody concentration ≥ 20 EL.U/mL one month after vaccination.

    For initially seropositive subjects (≥ 5 EL.U/mL) with pre-vaccination antibody concentration < 20 EL.U/mL: antibody concentration one month after vaccination ≥ 4 fold the pre-vaccination antibody concentration.

    For initially seropositive subjects (≥ 5 EL.U/mL) with pre-vaccination antibody concentration ≥ 20 EL.U/mL : antibody concentration one month after vaccination ≥ 2 fold the pre-vaccination antibody concentration.


  • Number of Subjects With Vaccine Response for Anti-PT, Anti-FHA and Anti-PRN Antibodies Concentrations Above the Cut-off, Using Alternative Definitions. [ Time Frame: One month after vaccination ] [ Designated as safety issue: No ]

    Vaccine response defined as:

    For initially seronegative subjects (< 5 EL.U/mL ), antibody concentration ≥ 10 EL.U/mL one month after vaccination.

    For initially seropositive subjects (≥ 5 EL.U/mL), antibody concentration one month after vaccination ≥ 2 fold the pre-vaccination antibody concentration.


  • Number of Subjects Reporting Solicited Local Symptoms [ Time Frame: Within the 4-day (Day 0-3) post-vaccination period ] [ Designated as safety issue: No ]
    Solicited local symptoms assessed include pain, redness and swelling.

  • Number of Subjects Reporting Solicited General Symptoms [ Time Frame: Within the 4-day (Day 0-3) post-vaccination period ] [ Designated as safety issue: No ]
    Solicited general symptoms assessed include fatigue, gastrointestinal symptoms, headache, and fever

  • Number of Subjects Reporting Unsolicited Adverse Events (AE) [ Time Frame: Within the 31-day (Day 0-30) post-vaccination period ] [ Designated as safety issue: No ]
    An AE is 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.

  • Number of Subjects Reporting Serious Adverse Events (SAE) [ Time Frame: From the vaccintation up to Day 182 ] [ Designated as safety issue: No ]
    An SAE is any untoward medical occurrence that: results in death, is lifethreatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study subject, or may evolve into one of the outcomes listed above.


Enrollment: 1332
Study Start Date: February 2009
Study Completion Date: July 2009
Primary Completion Date: July 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Boostrix Group
Subjects received a single dose of Boostrix™ (tetanus toxoids, reduced diphtheria toxoids and acellular pertussis vaccine)
Biological: Boostrix®
Intramuscular, single dose.
Active Comparator: Decavac Group
Subjects received a single dose of Decavac™ (tetanus and diphtheria toxoids vaccine)
Biological: Decavac™
Intramuscular, single dose.

  Eligibility

Ages Eligible for Study:   65 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Subjects who the investigator believes that can and will comply with the requirements of the protocol should be enrolled in the study.
  • Males or females 65 years of age and older at the time of study entry.
  • Free of an acute aggravation of the health status as established by medical history and medical history and clinical examination before entering into the study.
  • Written informed consent from all subjects.

Exclusion Criteria:

  • Administration of a diphtheria-tetanus (Td) booster within the previous 5 years.
  • Administration of a Tdap vaccine at any time prior to study entry.
  • History of diphtheria and/or tetanus and/or pertussis disease.
  • Use of any investigational or non-registered drug or vaccine other than the study vaccines within 30 days preceding vaccination, or planned use during the entire study period.
  • Administration of other licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to enrolment in this study, with the exception of influenza, vaccine, which may be administered at any time up to or during the study period, including the day of study vaccination.
  • Planned administration of any vaccine not foreseen by the study protocol up to 30 days following vaccination, with the exception of influenza, vaccine, which may be administered at any time up to or during the study period, including the day of study vaccination. Pneumococcal and zoster vaccines can be administered at the discretion of the investigator when the subject comes back at Visit 2.
  • Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to vaccination or planned administration during the study period.
  • Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination.
  • History of serious allergic reaction following any other tetanus toxoid, diphtheria toxoid or pertussis-containing vaccine or any component of the study vaccines.
  • History of encephalopathy within seven days of administration of a previous booster dose of pertussis vaccine that is not attributable to another identifiable cause.
  • Progressive neurologic disorder, uncontrolled epilepsy or progressive encephalopathy: pertussis vaccine should not be administered to individuals with these conditions until a treatment regimen has been established and the condition has stabilized.
  • Acute (active) clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by clinical evaluation or pre-existing laboratory screening tests.
  • Acute disease at the time of vaccination.
  • Administration of immunoglobulins and/or any blood products within the three months preceding vaccination, or planned administration during the study period.
  • Any medical condition that, in the opinion of the investigator, might interfere with the evaluations required by the study.
  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 ClinicalTrials.gov identifier: NCT00835237

  Show 24 Study Locations
Sponsors and Collaborators
GlaxoSmithKline
Investigators
Study Director: GSK Clinical Trials GlaxoSmithKline
  More Information

Publications:
Weston WM et al. Vaccination of adults 65 years of age and older with tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine (Boostrix™): results of a randomized clinical trial. Abstract presented at the 45th National Immunization Conference (NIC). Washington, USA, 28-31 March 2011.

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Cheri Hudson; Clinical Disclosure Advisor, GSK Clinical Disclosure
ClinicalTrials.gov Identifier: NCT00835237     History of Changes
Other Study ID Numbers: 111413
Study First Received: February 2, 2009
Results First Received: July 8, 2010
Last Updated: January 5, 2012
Health Authority: United States: Food and Drug Administration

Keywords provided by GlaxoSmithKline:
Boostrix®
adults

Additional relevant MeSH terms:
Diphtheria
Tetanus
Whooping Cough
Actinomycetales Infections
Bacterial Infections
Bordetella Infections
Clostridium Infections
Corynebacterium Infections
Gram-Negative Bacterial Infections
Gram-Positive Bacterial Infections
Infection
Respiratory Tract Diseases
Respiratory Tract Infections

ClinicalTrials.gov processed this record on October 23, 2014