Hospital staff antibody study tracks COVID-19 immunity over a year
NCT ID NCT04426006
First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study looked at how many hospital workers had COVID-19 antibodies and how long they lasted. Over 500 staff at a French cancer center gave blood samples and answered questionnaires at the start, 3 months, and 12 months. The goal was to understand immune response in people who may be exposed to the virus at work.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If successful, this study could help answer how long COVID-19 antibodies last in healthcare workers and guide infection control policies.
- What could go wrong
- This is an observational study, not a treatment trial. It only measures antibodies and cannot predict protection from future infection or severe disease.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Institut Bergonié
Bordeaux, 33076, France
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