A Study of High-Dose Trivalent Inactivated Influenza Vaccine in Adults 50 to 64 Years of Age
Safety and Immunogenicity of High-Dose Trivalent Inactivated Influenza Vaccine in Adults 50 to 64 Years of Age
2 other identifiers
interventional
300
1 country
5
Brief Summary
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
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Nov 2010
Shorter than P25 for phase_2
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 1, 2010
CompletedFirst Submitted
Initial submission to the registry
December 10, 2010
CompletedFirst Posted
Study publicly available on registry
December 13, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2011
CompletedResults Posted
Study results publicly available
October 27, 2011
CompletedMay 16, 2016
April 1, 2016
4 months
December 10, 2010
September 19, 2011
April 12, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Geometric Mean Titers (GMTs) of Vaccine Antibodies Before and After Vaccination With Either Fluzone® High-Dose or Fluzone® Vaccine.
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
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
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
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 Outcomes (1)
Number of Participants Reporting Solicited Injection Site or Systemic Reactions After Vaccination With Either Fluzone® High-Dose or Fluzone® Vaccine
Day 0 through Day 7 post-vaccination
Study Arms (2)
High-Dose Trivalent Inactivated Influenza Vaccine
EXPERIMENTALTrivalent Inactivated Influenza Vaccine
ACTIVE COMPARATORInterventions
0.5 mL Intramuscular
0.5 mL, Intramuscular
Eligibility Criteria
You may qualify if:
- 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
You may not qualify if:
- 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
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
Unknown Facility
Idaho Falls, Idaho, 83404, United States
Unknown Facility
Columbia, Maryland, 21045, United States
Unknown Facility
Ellicott City, Maryland, 21042, United States
Unknown Facility
Missoula, Montana, 59802, United States
Unknown Facility
Cleveland, Ohio, 44122, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Medical Director
- Organization
- Sanofi Pasteur Inc.
Study Officials
- STUDY DIRECTOR
Medical Director
Sanofi Pasteur Inc.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 10, 2010
First Posted
December 13, 2010
Study Start
November 1, 2010
Primary Completion
March 1, 2011
Study Completion
April 1, 2011
Last Updated
May 16, 2016
Results First Posted
October 27, 2011
Record last verified: 2016-04