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More info
You can access this
clinical trial
if you have
and you are
over 50
years old
This is an observational trial.
You are contributing to medical knowledge about your condition.
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The purpose

Little is known about factors associated with maintenance of hemagglutinin inhibition (HAI) antibodies after influenza vaccination in older adults so the investigators enrolled adults ≥50 years.

Provided treatments

  • Biological: Influenza Vaccine
Tris trial is registered with FDA with number: NCT02401893. The sponsor of the trial is Vanderbilt University and it is looking for 510 volunteers for the current phase.
Official trial title:
Factors Associated With Maintenance of Antibody Responses to Influenza Vaccine in Older, Community-Dwelling Adults