COVID-19 vaccination
Clinical trials for COVID-19 vaccination explained in plain language.
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Booster battle: which COVID-19 vaccine boosts immunity best?
Vaccine CompletedThis study tested whether a third dose of either the CoronaVac or Comirnaty vaccine boosts immunity better in adults who had two prior doses at least six months earlier. Researchers measured antibody levels in 451 participants from Hong Kong 28 days after the booster. The goal wa…
Matched conditions: COVID-19 VACCINATION
Phase 4 • Sponsor: The University of Hong Kong • Aim: Vaccine
Last updated Jun 27, 2026 12:33 UTC
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Could a COVID-19 shot boost cancer immunotherapy? a massive study digs into the timing.
Knowledge-focused CompletedThis large observational study looks at whether getting an mRNA COVID-19 vaccine shortly before or after starting immune checkpoint inhibitor therapy is linked to longer survival in adults with cancer. Using data from nearly 100,000 patients in France, researchers are comparing t…
Matched conditions: COVID-19 VACCINATION
Sponsor: Groupe Hospitalier Pitie-Salpetriere • Aim: Knowledge-focused
Last updated Sep 13, 2026 00:00 UTC