Could starting dialysis sooner save more hearts?
NCT ID NCT07756801
First seen Aug 11, 2026 · Last updated Aug 12, 2026 · Updated 1 time
Summary
This trial asks whether starting dialysis early—within 6 hours—in patients with cardiogenic shock and fluid overload can reduce deaths in the hospital compared to waiting until it's clearly needed. It enrolls adults in intensive care with severe heart pump failure and signs of excess fluid. The study compares immediate dialysis to the current standard of care, tracking survival, need for additional heart support, and recovery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Immediate renal replacement therapy (dialysis) started within 6 hours of randomization
- What this could lead to
- If early dialysis proves better, it could establish a new standard of care that lowers death rates in critically ill patients with cardiogenic shock and fluid overload.
- What could go wrong
- The trial is still testing this approach, and early dialysis carries risks like infection, blood pressure drops, and complications from the procedure. It may not improve outcomes and could add unnecessary treatment burden.
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 456 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2031
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: * adult patients \>/= 18 years of age admitted to an intensive care unit * Diagnosed clinically with Society for Cardiovascular Angiography and Interventions (SCAI) Class C or D cardiogenic shock * Clinical or hemodynamic evidence of volume overload Exclusion Criteria: * Patients whose care plan, as determined by the treating clinical team, will not include renal replacement therapy * Decision has already been made by the treating clinical team to initiate renal replacement therapy * Hyperkalemia with serum potassium \>/= 6mmol/L at the time of screening * Severe metabolic acidosis with serum bicarbonate \</= 12 mmol/L at the time of screening * Severe azotemia with serum urea \>/= 40 mmol/L at the time of screening * Acute intoxication necessitating use of renal replacement therapy * Recent renal replacement therapy (within 30 days) * Known end-stage renal disease (defined as an estimated glomerular filtration rate \<15 ml/min/1.73m2 * presentation with out-of-hospital cardiac arrest
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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 Ottawa Heart Institute
Ottawa, Ontario, K1Y 4W7, Canada
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Stick-On patch aims to catch dangerous heart decline sooner
- Heart pump timing put to the test in deadly heart attack shock
- A second chance for the heart: can rehab rewrite the story after shock?
- Blood filter may calm the deadly inflammation of cardiogenic shock
- Microscopic blood vessel health may hold key to cardiogenic shock survival
- Can a machine support a failing heart without overworking it?