New Flu Vaccine (Stem) with or without Booster
Part of Immune system & allergy, Infections clinical trials.
This trial tests a new type of flu vaccine that targets a part of the virus that doesn't change much (the stem). It is given with or without a special booster, and researchers want to see if it provides broader protection against different flu strains.
Summary written for real people, not researchers, by Clin2.
Who can take part
- Be between 18 and 50 years old and in good general health.
- Have received at least one flu shot between the 2020-2021 and 2024-2025 seasons.
- No flu shot or flu illness in the last 6 months.
- Not have serious health conditions like uncontrolled asthma, diabetes, or a weak immune system.
- Be willing to not get any other flu vaccine during the study and to use birth control if you could become pregnant.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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