NCT05276219

Brief Summary

Background: Intravenous (IV) loop-diuretics have been a key component in treating pulmonary edema since the nineteen sixties and has a Class 1 recommendation in the 2021 European Society of Cardiology guidelines for heart failure. Conversely, vasodilation was downgraded in the treatment of acute heart failure due to a lack of trials that compare vasodilation with loop-diuretics in a hyperacute clinical setting. This clinical equipoise will be tested in a trial including patients with pulmonary congestion immediately at hospital admission. Primary objective: To determine the superior strategy of loop-diuretics (furosemide), vasodilation (nitrates) or the combination during emergency treatment. Design: Investigator-initiated, randomized, double-blinded, placebo-controlled trial with 1:1:1 allocation. Intervention: Intervention-phase will last 6 hours from study-inclusion, and patients will be allocated to one of three groups:

  • Boluses of 40 mg IV furosemide + nitrate-placebo as soon as possible and repeated up to 10 times.
  • Boluses of 3 mg IV isosorbide dinitrate + furosemide-placebo as soon as possible.
  • Boluses of both 3 mg IV isosorbide dinitrate + of 40 mg as soon as possible.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,104

participants targeted

Target at P75+ for phase_4

Timeline
13mo left

Started Sep 2023

Longer than P75 for phase_4

Geographic Reach
1 country

4 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress71%
Sep 2023May 2027

First Submitted

Initial submission to the registry

January 31, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

March 11, 2022

Completed
1.5 years until next milestone

Study Start

First participant enrolled

September 14, 2023

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2027

Last Updated

April 22, 2026

Status Verified

April 1, 2026

Enrollment Period

3.7 years

First QC Date

January 31, 2022

Last Update Submit

April 17, 2026

Conditions

Keywords

acute heart failurePulmonary edema

Outcome Measures

Primary Outcomes (1)

  • Days alive and outside hospital

    The primary end point is the number of days alive and out of hospital during the 30-day period after the hospital-visit. The choice of this end point allow capturing the burden of acute heart failure in terms of mortality, hospital length of stay, and early readmission to the hospital. Patients who died before day 30 will be counted as having zero days alive and out of hospital. A return visit to the emergency department was considered as 1 day in the hospital, using the same approach as a recent trial of acute heart failure.

    30 days

Secondary Outcomes (6)

  • Intensification of therapy defined as at least one of: mechanical ventilation, renal replacement therapy, vasopressors, inotropes, or mechanical heart failure treatment.

    30 days

  • Clinical benefit at 30 days, consisting of a composite of 1. All-cause death, 2. Intubation with mechanical ventilation, and 3. rehospitalization, assessed using a 'win-ratio' approach.

    30 days

  • NT-proBNP at day 1-3

    30 days

  • Early Warning Score measured 6-24 hours after start of intervention.

    24 hours

  • Adverse events

    30 days

  • +1 more secondary outcomes

Other Outcomes (9)

  • Echocardiographic substudy

    72 hours

  • Research biobank-parameters

    24 hours

  • FiO2, Blood pressure, respiratory rate, heart rate after 1 hour

    1 hours

  • +6 more other outcomes

Study Arms (3)

Furosemide only

ACTIVE COMPARATOR

• Boluses of 40 mg furosemide given as soon as possible and repeated up to 10 times by the discretion of the treating physician.

Drug: Furosemide Injection

isosorbide dinitrate

ACTIVE COMPARATOR

• Boluses of 3 mg IV isosorbide dinitrate given as soon as possible and repeated up to 10 times by the discretion of the treating physician.

Drug: Isosorbide Dinitrate

isosorbide dinitrate + furosemide

ACTIVE COMPARATOR

• Boluses of both 3 mg IV isosorbide dinitrate + of 40 mg furosemide given as soon as possible and repeated up to 10 times by the discretion of the treating physician.

Drug: Furosemide and isosorbide dinitrate

Interventions

A diuretic (iv furosemide) strategy for decongestion in acute heart failure

Furosemide only

Vasodilation (iv isosorbide dinitrate) strategy for decongestion in acute heart failure

isosorbide dinitrate

Vasodilation (iv isosorbide dinitrate) strategy for decongestion in acute heart failure AND A diuretic (iv furosemide) strategy for decongestion in acute heart failure

isosorbide dinitrate + furosemide

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18 years
  • Acute (within minutes to days) onset or worsening of subjective dyspnea\*
  • Systolic blood pressure ≥100 mmHg
  • Oxygen saturation \<94% or need of oxygen
  • Signs or suspicion of congestion (peripheral edema, rales, and/or clinical suspicion of congestion) \*

You may not qualify if:

  • More than 40 mg IV furosemide within the last three hours before randomization including prehospital treatment.
  • More than 3 hours from hospital-admission to randomization
  • Ongoing ventricular taky- or brady-arrythmias or supraventricular arrhythmias with HR \> 180 or \< 40 bpm.
  • Suspected severe infection or sepsis.
  • If blood pressure drops below 90 mmHg in 2 measurements with 5 minutes apart and/or if urine production is below 50 ml after 1 hour, the intervention will be stopped, and patients can receive furosemide and nitrates freely.
  • We purposely chose not to exclude patients with aortic stenosis, since observational studies did not find excess risk of given nitrates to patients with pulmonary edema and aortic stenosis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Bispebjerg Hospital

Copenhagen, Copenhagen, 2000, Denmark

RECRUITING

Hvidovre Hospital

Copenhagen, Copenhagen, 2650, Denmark

RECRUITING

Nordsjællands Hospital

Hillerød, Denmark

RECRUITING

Roskilde Hospital

Roskilde, Denmark

NOT YET RECRUITING

MeSH Terms

Conditions

Pulmonary EdemaHeart Failure

Interventions

FurosemideIsosorbide Dinitrate

Condition Hierarchy (Ancestors)

Lung DiseasesRespiratory Tract DiseasesHeart DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

SulfanilamidesSulfonamidesAmidesOrganic ChemicalsAniline CompoundsAminesSulfonesSulfur CompoundsIsosorbideSorbitolSugar AlcoholsAlcoholsCarbohydrates

Study Officials

  • Johannes Grand, PhD

    Hvidovre University Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Johannes Grand, MD, Phd, MPH

CONTACT

Jens Jakob Thune, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Matching and identical placebo (saline)
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Inter-regional collaborative, randomized, placebo-controlled trial with 1:1:1 allocation * Boluses of 40 mg furosemide given as soon as possible and repeated up to 10 times by the discretion of the treating physician. * Boluses of 3 mg IV isosorbide dinitrate given as soon as possible and repeated up to 10 times by the discretion of the treating physician. * Boluses of both 3 mg IV isosorbide dinitrate + of 40 mg furosemide given as soon as possible and repeated up to 10 times by the discretion of the treating physician.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

January 31, 2022

First Posted

March 11, 2022

Study Start

September 14, 2023

Primary Completion (Estimated)

May 31, 2027

Study Completion (Estimated)

May 31, 2027

Last Updated

April 22, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations