Marshfield Clinic Research Foundation
Clinical trials sponsored by Marshfield Clinic Research Foundation, explained in plain language.
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Egg vs. lab: which flu shot works better?
Knowledge-focused CompletedThis study compared how well two different types of flu vaccines work in adults. Researchers tested traditional egg-based vaccines against newer non-egg-based vaccines to see which creates a stronger immune response. The study followed 366 adults over two flu seasons to measure t…
Phase: PHASE4 • Sponsor: Marshfield Clinic Research Foundation • Aim: Knowledge-focused
Last updated Mar 19, 2026 14:56 UTC
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Scientists test which flu shot works best for seniors
Knowledge-focused CompletedThis study aimed to understand how well different licensed flu vaccines protect adults aged 65-74 over two consecutive flu seasons. About 180 participants received one of three available vaccines in the first year, with some receiving the same or a different vaccine in the second…
Phase: NA • Sponsor: Marshfield Clinic Research Foundation • Aim: Knowledge-focused
Last updated Mar 02, 2026 15:26 UTC