Flu shot may calm artery inflammation after heart attack, new trial hopes to prove

NCT ID NCT06336317

Recruiting now Disease control Sponsor: Region Örebro County Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether getting a flu vaccine soon after a heart attack can reduce inflammation in the heart's arteries. Researchers will compare the vaccine to a placebo in 90 adults who recently had a heart attack and a stent procedure. They will use special CT scans and blood tests to measure inflammation 8 weeks later.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: influenza vaccine
What this could lead to: If it works, this could show that the flu vaccine helps reduce inflammation in heart arteries after a heart attack, potentially leading to a new way to prevent future heart problems.
What could go wrong: This is a small, early-phase trial (90 people) testing a short-term effect. The vaccine may not reduce inflammation as hoped, and results may not apply to all heart attack patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

acute myocardial infarction cardiovascular disorder inflammatory disease influenza

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ACUTE MYOCARDIAL INFARCTION CARDIOVASCULAR DISEASES INFLAMMATORY RESPONSE

Contacts and locations

Locations

Aarhus University Hospital, Department of Cardiology
RECRUITING

Aarhus, DK-8200, Denmark
Cambridge University Hospitals NHS Foundation Trust
RECRUITING

Cambridge, CB2 0QQ, United Kingdom
Örebro University Hospital
RECRUITING

Örebro, 70185, Sweden

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