Clinical trial Recruiting at 1 site Observational

Evaluating the impact of influenza vaccination and certain medications on COVID-19 outcomes

Official title: Evaluation of Influenza Vaccination and Treatment With ACEI and ARB in the Evolution of SARS-CoV2 Infection

Run by Consorci Sanitari de Terrassa · NCT04367883 · Data updated 2026-11-12

This study is trying to see if getting the flu vaccine or taking certain medications helps people in the hospital recover better from COVID-19.

More Covid19 trials

Quick facts

Study typeObservational
SexAll
Enrollment3000 (estimated)
SponsorConsorci Sanitari de Terrassa
Academic / other
Locations1 site (Terrassa, Barcelona)
StatusRecruiting
StartedMarch 1, 2020
Main results expectedJanuary 19, 2025
Study endsFebruary 24, 2028
Registry record updatedMarch 25, 2026
Trial IDNCT04367883 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are patients admitted to the Hospital de Terrassa since March 1, 2020, regardless of the cause of admission.

Probably not a fit

Patients who have not been admitted to the Hospital de Terrassa or those from outside the reference area may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to assess whether patients admitted to the Hospital de Terrassa who have received the influenza vaccine or are on treatments such as ACE inhibitors, ARBs, antihistamines, or amantadine show improved outcomes in their COVID-19 infection. The study will analyze hospital admissions, treatment histories, lengths of stay, ICU needs, and survival rates. By comparing these factors, the researchers hope to determine if these interventions can enhance patient recovery from COVID-19.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment protocols for COVID-19, potentially saving lives and reducing hospitalizations.

How similar studies have gone: While some studies have suggested potential benefits of influenza vaccination and certain medications in COVID-19 outcomes, this specific approach remains novel and untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
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.

Where it's running

  • Hospital de Terrassa
    Terrassa, Barcelona, Spain
    Recruiting

Study contacts

  • Principal investigator: Anna Puigdellívol-Sánchez, Ph D — Consorci Sanitari de Terrassa
  • Study coordinator: Anna Puigdellívol-Sánchez, Ph.D.
  • Email: apuigdellivol@cst.cat
  • Phone: 34-93-5884555

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.