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A Study on the Safety and Immunogenicity of Hexavalent Influenza mRNA Vaccine in Adult Participants 50 Years of Age and Older

Testing a new flu vaccine for adults 50 and older.

Recruiting
50 years and older
All
Phase 1/2

This study checks how safe and effective a new flu vaccine is for people aged 50 and older. The vaccine uses mRNA, a kind of genetic code that helps the body make proteins to fight the flu. Participants will get one injection of either a new hexavalent (six-part) vaccine, a trivalent (three-part) vaccine, or a usual flu vaccine. The study lasts about 12 months.

  • Participants need to visit the study site for five check-ups and have one phone call check-up.
  • Participants will receive compensation for their time and travel.
  • Possible mild side effects include soreness at the injection site or mild flu-like symptoms.

To join, you must be 50 or older, not pregnant, and willing to use birth control if needed. You cannot join if you have certain health issues like a weak immune system or a history of severe allergic reactions. Also, if you've recently received certain vaccines or are part of another study, you cannot participate. If you have any questions or need more details, contact the study team.

Study details
    Influenza
    Healthy Volunteers

NCT06744205

Sanofi Pasteur, a Sanofi Company

12 April 2025

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FAQs

Learn more about clinical trials

What is a clinical trial?

A clinical trial is a study designed to test specific interventions or treatments' effectiveness and safety, paving the way for new, innovative healthcare solutions.

Why should I take part in a clinical trial?

Participating in a clinical trial provides early access to potentially effective treatments and directly contributes to the healthcare advancements that benefit us all.

How long does a clinical trial take place?

The duration of clinical trials varies. Some trials last weeks, some years, depending on the phase and intention of the trial.

Do I get compensated for taking part in clinical trials?

Compensation varies per trial. Some offer payment or reimbursement for time and travel, while others may not.

How safe are clinical trials?

Clinical trials follow strict ethical guidelines and protocols to safeguard participants' health. They are closely monitored and safety reviewed regularly.
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