Could a flu shot or common pills tame COVID-19?

NCT ID NCT04367883

First seen Apr 01, 2026 · Last updated May 14, 2026 · Updated 7 times

Summary

This study reviews hospital records of 3,000 patients to see if those who had a flu shot, took blood pressure drugs (ACE inhibitors or ARBs), antihistamines, or amantadine had better COVID-19 outcomes. Researchers want to know if these treatments are linked to fewer deaths or shorter hospital stays. The study does not test new drugs but looks back at existing data.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Hospital de Terrassa

    RECRUITING

    Terrassa, Barcelona, 08227, Spain

    Contact Phone: •••-•••-•••• Email: •••••@•••••

Conditions

Explore the condition pages connected to this study.