Heart surgery boost: could adenosine be the key to better recovery?
NCT ID NCT07426237
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding adenosine to the standard heart-protecting solution used during bypass surgery helps the heart recover better. Sixty adults having elective valve or bypass surgery will receive either adenosine or a placebo. Researchers will measure heart function, heart damage markers, and the need for supportive drugs after surgery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Adenosine
- What this could lead to
- If it works, this could lead to a simple, low-cost way to better protect the heart during open-heart surgery, potentially reducing complications and speeding recovery.
- What could go wrong
- This is a small, early-phase trial (60 participants) testing a single dose. The benefit may be small or not seen at all, and there is a risk of side effects like arrhythmias.
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 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 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.
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: * All patients aged 18 years or older undergoing elective isolated valve replacement or coronary artery bypass grafting with cardiopulmonary bypass at Hospital Nossa Senhora da Conceição, Porto Alegre Exclusion Criteria: * Previous cardiac surgery; * Chronic kidney disease (serum creatinine greater than 2.0 mg/dL); * Severe psychiatric illness; * Urgent or emergency surgery; * Multiple cardiac procedures.
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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 Nossa Senhora da Conceição
Porto Alegre, Rio Grande do Sul, 91350-200, Brazil
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