BUFF trial: which water pill works best for liver patients?
NCT ID NCT06941415
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether bumetanide is better than furosemide at removing excess fluid in adults hospitalized with cirrhosis. About 500 participants will receive one of the two diuretics as part of standard care. The main goal is to see which drug leads to greater weight loss by day 7, with a focus on safety and kidney function.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- bumetanide and furosemide (diuretics)
- What this could lead to
- If bumetanide works better, it could become the preferred diuretic for hospitalized cirrhosis patients, helping them lose excess fluid faster and potentially reducing serious complications.
- What could go wrong
- This is a pragmatic trial comparing two existing drugs, so no breakthrough is expected. The benefit may be modest, and both drugs carry risks like kidney injury or electrolyte imbalances.
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 500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2026
- Expected to finish
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Mar 2029
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: * History of liver cirrhosis * Clinician placed an order for bumetanide or furosemide in electronic health record within 24 hours of presentation to the hospital Exclusion Criteria: * Allergy to bumetanide or furosemide * Contraindication to diuretic administration (e.g. active bleeding, clinical suspicion of hepatorenal syndrome, hypotension) * Incarcerated or in custody of law enforcement * Diuretic ordered for purpose other than volume overload (e.g. hyperkalemia, continuation of home medication without clinical signs of volume overload) * Inpatient admission not anticipated * Not admitted to an inpatient hospital bed following initial evaluation in the emergency department
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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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University of Utah Hospital
RECRUITINGSalt Lake City, Utah, 84132, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Sound waves may replace the needle in liver scarring tests
- Ultrasound may replace invasive test for dangerous liver complication
- Could a wearable zapper quiet cirrhosis pain without drugs?
- A needle through the gut could replace the standard liver pressure test
- Can two experimental drugs be used safely in people with cirrhosis?
- Can bedside ultrasound guide fluid treatment for cirrhosis patients?