COVID-19 may wreak havoc on hormones, new study suggests
NCT ID NCT05749770
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This completed study looked at how COVID-19 infection changes hormone levels and markers of inflammation in 220 hospitalized patients. Researchers measured things like thyroid hormones, testosterone, cortisol, and vitamin D at several points during and after hospitalization. They also checked if people with pre-existing endocrine problems had worse outcomes. The goal was to understand if COVID-19 causes hormone imbalances and whether treating those imbalances could improve recovery.
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 doctors understand how COVID-19 disrupts hormones and identify patients who may need extra care.
- What could go wrong
- This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may not apply to all COVID-19 patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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220 people
The number who actually took part.
- Started
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May 2020
- Finished
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Jun 2024
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
This is a pilot study aiming at evaluating all the subjects with COVID-19 admitted to the Istituto Auxologico during pandemic. It is expected to recruit at least 220 COVID-19 subjects and 440 controls subjects collected retrospectively at the other centers.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Nasal swab positive for Sars-CoV-2 * Moderate to severe respiratory dysfunction due to COVID-19, requiring hospitalization. Exclusion Criteria: * History of thyroid diseases before admission * History of adrenal diseases * History of hypogonadism (primary/secondary) * History of pituitary diseases
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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
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Istituto Auxologico Italiano IRCCS
Milan, 20145, Italy
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Other studies related to the condition(s) this trial covers.
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