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Heart failure study: can patients drink freely without harm?

NCT ID NCT07400991

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether people hospitalized for acute heart failure can safely drink as much as they want instead of limiting fluids. About 420 participants will be randomly assigned to either a strict 1.5 liters per day limit or a thirst-driven liberal intake. Researchers will measure how quickly patients stabilize, their thirst distress, and quality of life.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
fluid intake strategy (behavioral intervention)
What this could lead to
If successful, this could show that letting heart failure patients drink as they wish is safe and may improve their comfort and quality of life.
What could go wrong
This is a moderate-sized trial testing a behavioral change, not a new drug. Results may not apply to all heart failure patients, and the liberal approach could worsen fluid overload in some cases.

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

About 420 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2026

Expected to finish

Aug 2029

An estimate. End dates often move.

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

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Age \>18 years 2. Hospitalized for ADHF as the primary diagnosis, meeting both of the following: 1. ≥1 documented symptom of new or worsening heart failure (dyspnea, fatigue, decreased exercise tolerance, or symptom of end-organ hypoperfusion). 2. Objective evidence of ADHF, defined as either: i. ≥2 physical signs (edema, ascites, pulmonary rales/crackles, increased JVP, S3 gallop, rapid weight gain due to fluid retention), OR ii. ≥1 physical sign AND ≥1 laboratory finding indicative of ADHF (BNP \>500 ng/L or NT-proBNP \>2000 ng/L if sinus rhythm, or BNP \>750 ng/L or NT-proBNP \>3000 ng/L if atrial fibrillation, radiological/ultrasound evidence of pulmonary congestion, echocardiographic sign \[VCI \>2.1 cm, LVOT VTI \<15 cm, E/e' \>14, D-dominant pulmonary venous inflow pattern\], or invasive evidence \[CVP \>12 mmHg, PCWP \>18 mmHg, CI \<2.2 L/min/m2\]). 3. Treatment with ≥40 mg IV furosemide (or equivalent) 4. Enrolment within 24 hours of admission 5. Ability to provide informed consent Exclusion Criteria: 1. Requirement at admission for ICU-level care, or IV inotropic/vasopressor therapy for ADHF. 2. Na+ \<125 mmol/L or Na+ \>145 mmol/L. 3. End-stage chronic kidney disease on chronic dialysis or eGFR \<15 mL/min/1.73 m2 4. Any condition which would make participation unsafe or substantially affect protocol adherence, as judged by 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.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Department of Cardiology, Gødstrup Hospital

    RECRUITING

    Herning, 7400, Denmark

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