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Study of Inactivated, Split-Virion Influenza Vaccine Compared With the Reference Vaccine Vaxigrip® in the Elderly

This study has been completed.
Information provided by (Responsible Party):
Sanofi ( Sanofi Pasteur, a Sanofi Company ) Identifier:
First received: September 29, 2006
Last updated: January 10, 2014
Last verified: January 2014

Vaccination against influenza is a high priority for the elderly population who present the highest morbidity and mortality rate. However, due to their weak antibody response an improvement of the immune response to influenza vaccination remains an unmet medical need. The purpose of an investigational influenza vaccine candidate administered by an alternate route is to improve immune responses to the vaccine in the elderly population, which could provide additional reductions in influenza-associated morbidity and mortality in this population.

Primary Objective:

To demonstrate that the investigational vaccine induces a better immunogenicity than the reference vaccine in terms of seroprotection rate after the first vaccination.

Secondary Objectives:


To describe the antibody persistence induced by both vaccines at 3, 6, and 12 months after the first vaccination in a subset of subjects.

To describe the immunogenicity of the investigational vaccine after each vaccination using parameters defined in the European Medicines Agency (EMEA) Note for Guidance (CPMP/BWP/214/96) specific to elderly subjects.


To demonstrate the tolerance of the investigational vaccine after the first vaccination, in terms of pre-defined solicited systemic reactions.

To describe the safety profile after each vaccination. To describe the effect of repetitive injections on the safety profile.

Condition Intervention Phase
Orthomyxoviridae Infection
Myxovirus Infection
Biological: Inactivated, split-virion influenza vaccine
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention

Resource links provided by NLM:

Further study details as provided by Sanofi ( Sanofi Pasteur, a Sanofi Company ):

Primary Outcome Measures:
  • To provide information concerning the immunogenicity of Inactivated, Split-Virion Influenza vaccine [ Time Frame: 21 days post-vaccination ]

Secondary Outcome Measures:
  • To provide information concerning the safety of Inactivated, Split-Virion Influenza vaccine [ Time Frame: Entire study period ]

Enrollment: 3707
Study Start Date: September 2006
Study Completion Date: September 2009
Primary Completion Date: June 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Study Group 1 Biological: Inactivated, split-virion influenza vaccine
Active Comparator: Study Group 2 Biological: Inactivated, split-virion influenza vaccine
Other Name: Vaxigrip®


Ages Eligible for Study:   60 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Aged over 60 years on the day of inclusion.
  • Informed Consent Form signed.
  • Able to attend all scheduled visits and to comply with all trial procedures.

Exclusion Criteria:

  • Systemic hypersensitivity to egg proteins, chick proteins, or any of the vaccine components, in particular, neomycin, formaldehyde, and octoxinol 9, or history of a life-threatening reaction to the trial vaccine or a vaccine containing the same substances.
  • Febrile illness (oral temperature ≥ 37.5°C or rectal equivalent temperature ≥ 38.0°C) on the day of inclusion.
  • Participation in another clinical trial in the four weeks preceding the first trial vaccination.
  • Planned participation in another clinical trial during the present trial period.
  • Congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroids therapy.
  • Unstable chronic illness (defined as illness requiring hospitalization or a clinically significant change in medication in the 12 weeks prior to inclusion) at a stage that could interfere with trial conduct or completion.
  • Current abuse of alcohol or drug addiction that may interfere with the subject's ability to comply with trial procedures.
  • Blood or blood-derived products received in the past 3 months.
  • Any vaccination in the 4 weeks preceding the first trial vaccination.
  • Vaccination planned in the 4 weeks following the first trial vaccination.
  • Previous vaccination against influenza (in the previous 6 months) with the trial vaccine or another vaccine.
  • Thrombocytopenia or bleeding disorder contraindicating intramuscular vaccination.
  • Subject deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized without his/her consent.
  Contacts and Locations
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Please refer to this study by its identifier: NCT00383526

Antwerpen, Belgium, 2060
Angers, France, 49000
Genova, Italy, 16132
Vilnius, Lithuania, LT-08117
Sponsors and Collaborators
Sanofi Pasteur, a Sanofi Company
Study Director: Medical Monitor Sanofi Pasteur Inc.
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Sanofi Pasteur, a Sanofi Company Identifier: NCT00383526     History of Changes
Other Study ID Numbers: GID17
Study First Received: September 29, 2006
Last Updated: January 10, 2014

Keywords provided by Sanofi ( Sanofi Pasteur, a Sanofi Company ):
Inactivated Split-virion influenza vaccine

Additional relevant MeSH terms:
Communicable Diseases
Influenza, Human
Orthomyxoviridae Infections
RNA Virus Infections
Virus Diseases
Respiratory Tract Infections
Respiratory Tract Diseases
Immunologic Factors
Physiological Effects of Drugs processed this record on May 25, 2017