NCT06024889

Brief Summary

Intravenous (IV) loop diuretics have been a key component in treating pulmonary edema since the 1960s and has a Class 1 recommendation in the 2021 guidelines for acute heart failure. However, no randomized clinical trials have investigated loop diuretics versus other interventions for acute heart failure, and clinical knowledge of the hemodynamic effects of furosemide is based in studies from the 1970s. In this study, we aim to assess the acute effect of furosemide on cardiac filling pressures and pulmonary congestion. Hypothesis: Administration of furosemide induces a hyperacute (within 30 minutes) lowering of cardiac filling pressures and pulmonary congestion before significant diuresis occurs. Design: A prospective, interventional study including 20 patients admitted due to a clinical diagnosis of acute heart failure with pulmonary congestion. Intervention: 80 mg of furosemide is administered IV. Measurements include blood pressure, peripheral oxygen saturation, pulmonary fluid content by ReDS\*, ultrasound examination of heart and lungs, and assessment of cardiac filling pressures with doppler and strain analysis. Measurements are repeated at several time points until 6 hours have passed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Sep 2023

Shorter than P25 for phase_1

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

August 23, 2023

Completed
9 days until next milestone

Study Start

First participant enrolled

September 1, 2023

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 6, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 9, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 9, 2024

Completed
Last Updated

February 16, 2024

Status Verified

February 1, 2024

Enrollment Period

5 months

First QC Date

August 23, 2023

Last Update Submit

February 15, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Pulmonary fluid content

    Remote dielectric sensing (ReDS) is a non-invasive electromagnetic-based tool that measures absolute lung fluid content and gives the fluid content in a proportional value ranging from 0-100 percent. 20-35% represent normal values. The primary outcome will be change in pulmonary fluid content after administration of furosemide

    From the time 0 to 30 minutes

Study Arms (1)

Furosemide

EXPERIMENTAL

80 mg of furosemide is administered IV

Drug: Furosemide Injection

Interventions

Intravenous administration of 80 mg furosemide is followed by assessing blood pressure, peripheral oxygen saturation, pulmonary fluid content by ReDS\*, and ultrasound examination of heart and lungs, including assessment of filling pressures with doppler and strain analysis. These measurements are repeated at multiple time points until 6 hours have elapsed.

Furosemide

Eligibility Criteria

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

You may qualify if:

  • Age ≥ 18 years
  • Clinical diagnosis of acute heart failure requiring hospitalization
  • Systolic blood pressure ≥100 mmHg
  • Oxygen saturation \<94% or need of oxygen
  • Confirmed pulmonary congestion on x-ray or ReDS

You may not qualify if:

  • More than 40 mg iv furosemide within the last three hours before randomization, including prehospital administration
  • Ongoing ventricular taky- or brady-arrythmias or supraventricular arrhythmias with HR \> 180 or \< 40 bpm.
  • Known chronic obstructive lung disease
  • Pacemaker or ICD on the right side
  • Congenital heart malformations or intra-thoracic mass that would affect the right lung anatomy (e.g. dextrocardia, lung carcinoma)
  • Wounds, burns, healing tissue, skin infection or recent skin graft or flap where the sensors should be attached to the skin
  • Height less than 155 cm or higher than 200 cm
  • BMI of less than 18 or more than 38

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Amager-Hvidovre Hospital

Copenhagen, Capital Region of Denmark, 2650, Denmark

Location

Related Publications (1)

  • El Caidi NO, Lukoschewitz JD, Nielsen OW, Hove J, Seven E, Dixen U, Grund F, Petersen M, Foss NB, Grand J. The acute effects of furosemide in acute heart failure assessed by remote dielectric sensing. A protocol. Dan Med J. 2024 Jun 12;71(7):A11230697. doi: 10.61409/A11230697.

MeSH Terms

Interventions

Furosemide

Intervention Hierarchy (Ancestors)

SulfanilamidesSulfonamidesAmidesOrganic ChemicalsAniline CompoundsAminesSulfonesSulfur Compounds

Study Officials

  • Johannes Grand

    Department of Cardiology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 23, 2023

First Posted

September 6, 2023

Study Start

September 1, 2023

Primary Completion

February 9, 2024

Study Completion

February 9, 2024

Last Updated

February 16, 2024

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

Locations