A Study of High-Dose Trivalent Inactivated Influenza Vaccine in Adults 50 to 64 Years of Age

April 12, 2016 updated by: Sanofi Pasteur, a Sanofi Company

Safety and Immunogenicity of High-Dose Trivalent Inactivated Influenza Vaccine in Adults 50 to 64 Years of Age

The aim of the study is to generate data on key parameters associated with assessment of influenza vaccines in individuals 50-64 years of age

Primary Objective:

  • To describe the immunogenicity of High-Dose Trivalent Inactivated Influenza Vaccine (TIV) compared to TIV.
  • To describe the safety profile of High-Dose Trivalent Inactivated Influenza Vaccine, as assessed by solicited adverse reactions collected for 7 days post-vaccination, and unsolicited adverse events (including Serious Adverse Events and Adverse Events of Special Interests) collected between Visit 1 and Visit 2

Study Overview

Detailed Description

Participants will be randomized to receive one dose of either High-Dose Trivalent Inactivated Influenza Vaccine or Trivalent Inactivated Influenza Vaccine. They will be followed up for safety for one month post-vaccination.

Study Type

Interventional

Enrollment (Actual)

300

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Idaho
      • Idaho Falls, Idaho, United States, 83404
    • Maryland
      • Columbia, Maryland, United States, 21045
      • Ellicott City, Maryland, United States, 21042
    • Montana
      • Missoula, Montana, United States, 59802
    • Ohio
      • Cleveland, Ohio, United States, 44122

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 64 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Aged 50 to 64 years (inclusive) on the day of vaccination
  • Informed consent form has been signed and dated
  • Medically stable
  • 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 or abstinence from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination

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
  • Planned receipt of any vaccine in the 4 weeks following the trial vaccination (prior to the Visit 2 blood draw)
  • Receipt of seasonal or pandemic influenza vaccine in the past 6 months
  • Receipt of blood or blood-derived products in the past 3 months
  • Systemic hypersensitivity to eggs, chicken proteins, or any of the vaccine components, or a history of a life-threatening reaction to the standard-dose Trivalent Inactivated Influenza Vaccine or a vaccine containing any of the same substances
  • 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
  • Neoplastic disease or any hematologic malignancy
  • Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination
  • Personal history of Guillain-Barré Syndrome
  • Self-reported seropositivity for Human Immunodeficiency Virus (HIV), Hepatitis B, or Hepatitis C
  • 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
  • Identified as employees 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 (i.e., immediate, husband, wife and their children, adopted or natural) of the employees or the Investigator

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: High-Dose Trivalent Inactivated Influenza Vaccine
0.5 mL Intramuscular
Other Names:
  • Fluzone® High-Dose
Active Comparator: Trivalent Inactivated Influenza Vaccine
0.5 mL, Intramuscular
Other Names:
  • Fluzone®

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Geometric Mean Titers (GMTs) of Vaccine Antibodies Before and After Vaccination With Either Fluzone® High-Dose or Fluzone® Vaccine.
Time Frame: Day 0 and Day 28 post-vaccination
Serum antibody titers to vaccine antigens were assessed by means of the hemagglutination inhibition (HAI) assay method.
Day 0 and Day 28 post-vaccination
Geometric Mean of Individual Titer Ratios (GMTRs) of Vaccine Antibodies Before and After Vaccination With Either Fluzone® High-Dose or Fluzone® Vaccine
Time Frame: Day 0 and Day 28 Post-vaccination
Serum antibody titers to vaccine antigens were assessed by means of the hemagglutination inhibition (HAI) assay method.
Day 0 and Day 28 Post-vaccination
Percentage of Participants With Seroconversion After Vaccination With Either Fluzone® High-Dose or Fluzone® Vaccine
Time Frame: Day 0 and Day 28 post-vaccination

Seroconversion: For participants with a Day 0 (pre-vaccination) titer < 10 (1/dilution [1/dil]) a titer ≥ 40 (1/dil), and for participants with a Day 0 titer ≥ 10 (1/dil) a ≥ 4 fold increase of titer on Day 28.

Serum antibody titers were assessed by means of the hemagglutination inhibition (HAI) assay method.

Day 0 and Day 28 post-vaccination
Percentage of Participants With Seroprotection Before and After Vaccination With Either Fluzone® High-Dose or Fluzone® Vaccine
Time Frame: Day 0 and Day 28 post vaccination
Seroprotection was defined as a titer ≥ 40 (1/dilution [1/dil]). Serum antibody titers were assessed by means of the hemagglutination inhibition (HAI) assay method.
Day 0 and Day 28 post vaccination

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Reporting Solicited Injection Site or Systemic Reactions After Vaccination With Either Fluzone® High-Dose or Fluzone® Vaccine
Time Frame: Day 0 through Day 7 post-vaccination
Solicited Injection Site Reactions: Pain, Erythema, Swelling, Ecchymosis, and Induration. Solicited Systemic Reactions: Fever, Headache, Malaise, Myalgia, and Shivering
Day 0 through Day 7 post-vaccination

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2010

Primary Completion (Actual)

March 1, 2011

Study Completion (Actual)

April 1, 2011

Study Registration Dates

First Submitted

December 10, 2010

First Submitted That Met QC Criteria

December 10, 2010

First Posted (Estimate)

December 13, 2010

Study Record Updates

Last Update Posted (Estimate)

May 16, 2016

Last Update Submitted That Met QC Criteria

April 12, 2016

Last Verified

April 1, 2016

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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