Follow-up study on flu shot response from previous trial
Part of Infections, Lungs & breathing clinical trials.
This study follows up on people who were in a prior trial of an oral supplement (TUDCA) or a placebo. It will check how well the flu vaccine worked for them over time.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You were in the original TUDCA or placebo group study.
- You have not gotten any flu shot or other vaccines from April to December 2025.
- You are willing to take part in this follow-up and sign a new consent form.
- Your health is stable and you haven't had any serious illness or hospital stay in the last month.
- You are not currently on immunosuppressants or hormonal medications that started after the first study.
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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