Common painkiller ibuprofen tested as treatment for heart inflammation
NCT ID NCT06686862
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This clinical trial is testing whether a 3-week course of ibuprofen can reduce heart scarring better than standard acetaminophen in people hospitalized with acute myocarditis (heart muscle inflammation). The study will enroll 150 adults with mild cases (normal heart pumping function) and use MRI scans to measure inflammation and scarring over 6 months. If successful, ibuprofen could become a simple, low-cost treatment option.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ibuprofen
- What this could lead to
- If it works, this could provide a simple, widely available treatment to reduce heart scarring in acute myocarditis.
- What could go wrong
- This is a relatively small Phase 3 trial (150 people) and uses an open-label design, which can introduce bias. Ibuprofen may not outperform acetaminophen, and long-term benefits are uncertain.
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.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 150 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2025
- Expected to finish
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Oct 2027
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.
- Ages
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18 years and older
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Aged 18 years or older. * Patients hospitalized for confirmed acute myocarditis and left ventricular ejection fraction ventricular \>50%. * Elevated troponin I/T (3 times above the upper limit of normal). * Absence of acute heart failure. * Absence of ischemic heart disease (ruled out by coronary angiography or coronary CT in individuals over 40 years). * Diagnostic criteria for myocarditis (Lake Louise, 2018 update) by cardiac magnetic resonance imaging. Exclusion Criteria: * Kidney disease stage 3b, 4 and 5 (creatinine clearance by CKD-EPI \<45 ml/min/1.73 m2). * Severe liver failure (Child-Pugh class C). * Poorly controlled pharmacological hypertension (repeatedly systolic arterial pressure \>140 mmHg). * Diagnosis criteria for acute pericarditis. * Moderate or severe pericardial effusion (\>10 mm in total). * Hypersensitivity to NSAIDs or previous use in the last 7 days. * Contraindication for MRI. * Participation in another clinical trial. * Pregnancy, breastfeeding, or women of childbearing age unwilling to use appropriate contraception throughout the study. * Any circumstance that, in the investigator's opinion, compromises participation in the clinical trial.
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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 Universitario Puerta de Hierro-Majadahonda
RECRUITINGMajadahonda, Madrid, 28222, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Could a simple heart catheter test predict serious complications after myocarditis?
- New ultrasound could spot heart danger in cancer patients
- Heart inflammation study seeks to predict deadly rhythms
- Athletes' hearts under watch: new study tracks rhythm risks after myocarditis
- Heart MRI registry aims to unlock myocarditis risk secrets
- New study aims to decode heart inflammation in kids