Lactate: a surprising booster for failing hearts?
NCT ID NCT06121323
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at how lactate, a natural substance made by the body, affects heart function in 12 people with chronic heart failure. Researchers gave lactate as an infusion and as a drink, then measured changes in blood flow and heart pressure. The goal was to understand if lactate could help the heart work better, but this was a small, early study to gather information, not to test a new treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Sodium lactate
- What this could lead to
- If it works, this could point toward new ways to manage heart failure by using lactate to improve heart function.
- What could go wrong
- This is a very small, early-stage study with only 12 participants, so results may not apply to everyone. It is designed to understand basic effects, not to test a treatment.
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
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
12 people
The number who actually took part.
- Started
-
Nov 2023
- Finished
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Jan 2025
- Lead sponsor
-
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
-
18 years and older
- Sex
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Anyone
- Healthy volunteers
-
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: * Chronic heart failure * NYHA II-III * Left ventricular ejection fraction \<40% * Negative urine-HCG for women with childbearing potential Exclusion Criteria: * Diabetes or HbA1c \>48 mmol/mol * Significant cardiac valve disease * Severe stable angina pectoris * Severe comorbidity as judged by the investigator * Inability to give informed consent * Age \<18 years * Other disease or treatment making subject unsuitable for study participation as judged by the investigator.
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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.
Contacts and locations
Locations
-
Aarhus University Hospital
Aarhus, Central Jutland, 8200, Denmark
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