Everyday drugs might tame COVID: 3,000-Patient trial launched
NCT ID NCT04367883
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks back at 3,000 hospital patients to see if those who got a flu shot, took blood pressure meds (ACEI/ARB), antihistamines, or amantadine had better COVID-19 outcomes. Researchers want to know if these common treatments can reduce deaths or shorten hospital stays. No new drugs are given—just analyzing what patients already took.
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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About 3,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2020
- Expected to finish
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Feb 2028
An estimate. End dates often move.
- 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
All hospital admissions in the Hospital of Terrassa from March 1, 2020 were innitially included. Population of reference: the population assigned to the Terrassa Health Consortium population.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Hospital Admissions at the Hospital of Terrassa from March 1, 2020 for any cause. Exclusion Criteria: * None. * For comparison of percentage of Influenza vaccination, ACEI and ARB vs general population, patients from outside the reference area of the Terrassa Health Consortium would be excluded.
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Get notified about this study
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Hospital de Terrassa
RECRUITINGTerrassa, Barcelona, 08227, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- COVID-19's hidden toll: muscle wasting in the ICU
- Can a mild case of COVID-19 harm your kidneys? urine tests may hold the answer
- Could a common acne pill weaken the nose's defense against COVID-19?
- Could cystic fibrosis offer hidden protection against COVID-19?
- Can a blood test reveal why the flu shot fails some people?