Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Can a second diuretic boost recovery from heart failure?

NCT ID NCT06166654

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 14, 2026 · Last updated Aug 14, 2026

Summary

This trial investigates whether adding either metolazone or acetazolamide to standard loop diuretics helps adults hospitalized with acute heart failure and fluid overload. Participants are randomly assigned to one of three treatment arms, and the study tracks days alive and out of the hospital within 30 days. The goal is to find the most effective strategy for reducing congestion and improving recovery.

What this could mean

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

Active substance
Acetazolamide or metolazone added to standard loop diuretics
What this could lead to
If successful, this could identify a more effective diuretic combination to help people with acute heart failure recover faster and spend less time in the hospital.
What could go wrong
This is a phase 4 trial, but results may vary by patient. Risks include potential side effects from the added diuretics, such as kidney issues 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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 939 people

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

Started

Sep 2024

Expected to finish

Dec 2027

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. Acute hospital admission with a clinical diagnosis of acute heart failure with volume overload. 3. Display risk of diuretic resistance, characterized by: 1. Daily loop-diuretics administration for a minimum of 7 days before admission, or 2. Insufficient decongestion observed in the preceding 24 hours (weight reduction \<500g or negative fluid balance \<1L) despite being treated with high-dose IV loop diuretic (equivalent to ≥120 mg IV furosemide within 24 hours). 4. Clinical signs of congestion, indicated by one or more of the following: pitting peripheral edema, ascites, elevated jugular venous pressure, or radiological/ultrasonic evidence of pulmonary congestion. Exclusion Criteria: 1. Acute coronary syndrome 2. Systolic blood pressure \<85 mmHg 3. Use of renal replacement therapy or ultrafiltration in-hospital before study inclusion 4. Treatment with acetazolamide or metolazone during the index hospitalization prior to randomization 5. Known allergy to any of the used drugs 6. Severe hypokalemia (\<2.5 mmol/l) or severe hyponatremia (\<125 mmol/l) 7. Severe hepatic impairment or liver cirrhosis 8. Known pregnancy

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Acute heart failure are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

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

    5 sites. 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

  • Aarhus university Hospital

    RECRUITING

    Aarhus, 2650, Denmark

  • Amager-Hvidovre Hospital

    RECRUITING

    Hvidovre, Capital Region of Denmark, 2650, Denmark

  • Bispebjerg Hospital

    NOT_YET_RECRUITING

    Copenhagen, 2400, Denmark

  • Herlev-Gentofte hospital

    RECRUITING

    Copenhagen, 2730, Denmark

  • Zealand University Hospital

    RECRUITING

    Roskilde, 2650, Denmark

More trials for these conditions

Other studies related to the condition(s) this trial covers.