A Study of Fluzone® High-Dose Vaccine Compared With Fluzone® Vaccine In Elderly Adults

Completed · Phase 4

Conditions studied: Influenza

In brief

The aim of this study is to determine the efficacy of Fluzone High-Dose compared to standard dose Fluzone for laboratory-confirmed or culture-confirmed influenza caused by influenza types/subtypes that are similar (for laboratory-confirmed) or antigenically similar (for culture-confirmed) to those contained in the respective annual vaccine formulations. Primary Objective: * To compare the clinical efficacy of Fluzone High-Dose to that of Fluzone in elderly adults, with respect to laboratory-confirmed influenza caused by any influenza viral types/subtypes, associated with the occurrence of a protocol-defined influenza-like-illnesses (ILI). Secondary Objectives: * To compare the clinical efficacy of Fluzone High-Dose to that of Fluzone in elderly adults, with respect to laboratory-confirmed influenza, caused by any influenza viral types/subtypes, associated with the occurrence of a protocol-defined ILI. * To compare the clinical efficacy of Fluzone High-Dose to that of Fluzone in elderly adults, with respect to culture-confirmed influenza, caused by any influenza viral types/subtypes, associated with the occurrence of a protocol-defined ILI. * To compare the clinical efficacy of Fluzone High-Dose to that of Fluzone in elderly adults, with respect to culture-confirmed influenza caused by viral types/subtypes antigenically similar to those contained in the respective annual vaccine formulations, associated with the occurrence of a modified Centers for Disease Control and Prevention (CDC)-defined ILI. * To compare the clinical efficacy of Fluzone High-Dose to that of Fluzone in elderly adults, with respect to culture-confirmed influenza caused by any influenza viral types/subtypes, associated with the occurrence of a modified CDC-defined ILI. * To compare the clinical efficacy of Fluzone High-Dose to that of Fluzone in elderly adults, with respect to culture-confirmed influenza caused by viral types/subtypes antigenically similar to those contained in the respective annual vaccine formulations, associated with the occurrence of a respiratory illness. * To compare the clinical efficacy of Fluzone High-Dose to that of Fluzone in elderly adults, with respect to culture-confirmed influenza caused by any influenza viral types/subtypes, associated with the occurrence of a respiratory illness.

Key facts

Study ID

NCT01427309

Run by

Sanofi Pasteur, a Sanofi Company

People needed

31989

Starts

2011-09-01

Expected to finish

2013-11-01

Last updated by the study team

2015-04-20

Who can join

Age: 65 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Aged ≥ 65 years on the day of vaccination
• Informed consent form signed and dated
• Able to attend all scheduled visits and to comply with all trial procedures.

You may not qualify if…

• Participation at the time of study enrollment (or in the 4 weeks preceding the trial vaccination), or planned participation during each year of the trial period, in another clinical trial investigating a vaccine, drug, medical device, or medical procedure (Note: Concomitant participation in an observational trial is acceptable)
• Vaccination against influenza in the 6 months preceding the trial vaccination
• Systemic hypersensitivity to eggs, chicken proteins, or any of the vaccine components, or a history of a life-threatening reaction to Fluzone High-Dose or Fluzone vaccine or to a vaccine containing any of the same substances
• Personal history of Guillain-Barré Syndrome
• Dementia or any other cognitive condition at a stage that could interfere with following the trial procedures
• Thrombocytopenia contraindicating intramuscular (IM) vaccination, as judged by the investigator
• Bleeding disorder or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination, as judged by the investigator
• Current alcohol abuse or drug addiction
• Subject deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily
• Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study, or identified as an immediate family member (i.e., parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study
• Moderate or severe acute illness with or without fever (oral temperature > 99.0ºF [> 37.2ºC]). If this contraindication exists, vaccination will be deferred until the individual has been medically stable and/or afebrile (temperature ≤ 99.0 ºF [≤ 37.2ºC]) for at least 24 hours
• Signs and symptoms of an acute infectious respiratory illness. If this exists, vaccination will be deferred until the symptoms resolve.

Where it is running

• Study site — Chandler, Arizona, United States
• Study site — Glendale, Arizona, United States
• Study site — Glendale, Arizona, United States
• Study site — Mesa, Arizona, United States
• Study site — Mesa, Arizona, United States
• Study site — Phoenix, Arizona, United States
• Study site — Phoenix, Arizona, United States
• Study site — Phoenix, Arizona, United States
• Study site — Scottsdale, Arizona, United States
• Study site — Tempe, Arizona, United States
• Study site — Harrisburg, Arkansas, United States
• Study site — Anaheim, California, United States
• Study site — La Mesa, California, United States
• Study site — Oceanside, California, United States
• Study site — Redding, California, United States
• Study site — San Diego, California, United States
• Study site — Santa Rosa, California, United States
• Study site — Aurora, Colorado, United States
• Study site — Colorado Springs, Colorado, United States
• Study site — Colorado Springs, Colorado, United States
• Study site — Milford, Connecticut, United States
• Study site — Milford, Connecticut, United States
• Study site — Brooksville, Florida, United States
• Study site — Clearwater, Florida, United States
• Study site — Mobile, Alabama, United States

Full record on ClinicalTrials.gov

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