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A Study of the Immunogenicity of Swine-origin A/H1N1 Influenza Vaccine in Healthy Adults

This study has been completed.
Information provided by (Responsible Party):
Sanofi ( Sanofi Pasteur, a Sanofi Company ) Identifier:
First received: March 17, 2010
Last updated: January 10, 2014
Last verified: January 2014

This study is designed to describe the immunogenicity of a pandemic A/H1N1 influenza vaccine in healthy adults given a lower vaccine dose and in a similar group given a full dose of the vaccine.

The primary objective is to describe describe the immune response of the inactivated, split-virion swine-origin A/H1N1 influenza vaccine without adjuvant.

Condition Intervention Phase
Swine-origin A/H1N1 Influenza
Biological: Swine A/H1N1 influenza vaccine (split virion, inactivated)
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Immunogenicity of the Intramuscular Inactivated, Split Virion Swine-origin A/H1N1 Influenza Vaccine Without Adjuvant in Healthy Adult Subjects

Resource links provided by NLM:

Further study details as provided by Sanofi:

Primary Outcome Measures:
  • To provide information concerning the immunogenicity in terms of anti-hemagglutinin (HA) antibody titers against non-adjuvanted pandemic A/H1N1 influenza vaccine. [ Time Frame: 21 days post-vaccination ]

Enrollment: 202
Study Start Date: March 2010
Study Completion Date: December 2010
Primary Completion Date: September 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Study Group 1
Swine-origin A/H1N1 Vaccine Low-dose
Biological: Swine A/H1N1 influenza vaccine (split virion, inactivated)
0.3 mL, Intramuscular (IM)
Experimental: Study Group 2
Swine-origin A/H1N1 Vaccine High-dose
Biological: Swine A/H1N1 influenza vaccine (split virion, inactivated)
0.5 mL, Intramuscular (IM)

Detailed Description:
All participants will receive a single dose of study vaccine and will also be monitored for serious adverse events and adverse events of special interest occurring from Days 0 to 21 and at 6 months post-vaccination.

Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria :

  • Aged 18 to 60 years on the day of inclusion
  • Informed consent form has been signed and dated
  • Able to attend all scheduled visits and to comply with all trial procedures
  • For a woman of childbearing potential, use of an effective method of contraception from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination
  • Entitled to national social security

Exclusion Criteria :

  • Known pregnancy, or a positive urine pregnancy test
  • Currently breastfeeding a child
  • Participation in another clinical trial investigating a vaccine, drug, medical device, or medical procedure in the 4 weeks preceding the trial vaccination
  • Planned participation in another clinical trial during the present trial period
  • Receipt of any vaccine in the 4 weeks preceding the trial vaccination
  • Receipt of blood or blood-derived products in the past 3 months, which might interfere with assessment of the immune response
  • Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months)
  • Self-reported seropositivity for human immunodeficiency virus (HIV), hepatitis B, or hepatitis C
  • Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccine used in the trial or to a vaccine containing any of the same substances
  • Self-reported thrombocytopenia, contraindicating intramuscular (IM) vaccination
  • Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination
  • Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily
  • Current alcohol abuse or drug addiction that might interfere with the ability to comply with trial procedures
  • Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with trial conduct or completion
  • Employee of the investigator or study center, with direct involvement in the proposed study or other studies under the direction of that investigator or study center, as well as family members of the employees or the investigator
  • Participant previously vaccinated with an A/H1N1 pandemic influenza vaccine during vaccination campaign or in a clinical trial
  • Personal history of influenza infection since May 2009
  • Febrile illness (temperature ≥ 38.0°C) or moderate or severe acute illness/infection on the day of vaccination, according to Investigator judgment.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01089660

Rennes, France, 35000
Rueil Malmaison, France, 92502
Sponsors and Collaborators
Sanofi Pasteur, a Sanofi Company
Study Director: Medical Director Sanofi Pasteur Inc.
  More Information

Additional Information:
Responsible Party: Sanofi Pasteur, a Sanofi Company Identifier: NCT01089660     History of Changes
Other Study ID Numbers: GPF18
2010-018991-25 ( EudraCT Number )
UTN: U1111-1112-8378 ( Other Identifier: WHO )
Study First Received: March 17, 2010
Last Updated: January 10, 2014

Keywords provided by Sanofi:
Pandemic Flu
Swine-origin Influenza
Inactivated split-virion vaccine

Additional relevant MeSH terms:
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 April 24, 2017