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A Study of Ultra High Dose Diuretics to Treat Heart Failure

Ultra High Dose Diuretic Strategy for Management of Acute Decompensated Heart Failure - A Randomized, Double-Blind Pilot Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06036914
Enrollment
20
Registered
2023-09-14
Start date
2023-11-27
Completion date
2024-10-08
Last updated
2026-01-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Heart Failure; With Decompensation

Brief summary

The purpose of this study is to determine the safety and effectiveness of ultrahigh dose diuretics compared to standard dose diuretics over 24 hours in patients with decompensated heart failure.

Interventions

Bumetanide will be administered via intravenous (IV) infusion at a dose of 12.5 mg two times a day (BID) for 2 doses total within 24 hours.

DRUGFurosemide

Furosemide will be administered via intravenous (IV) infusion at usual doses (twice the home dose of oral daily diuretic in furosemide equivalents) administered as 2 doses total within 24 hours. Furosemide equivalents will be considered as follows (40 mg of intravenous furosemide = 1 mg oral bumetanide or 40 mg of torsemide or 80 mg of oral furosemide consistent with prior literature). The lowest dose of furosemide administered during the study will be 40 mg IV two times a day (BID) and the maximum dose will be 100 mg IV BID.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of decompensated heart failure receiving intravenous diuretics * Ability to provide informed consent

Exclusion criteria

* Patients on home inotrope medications * Patients with Chronic Kidney disease stage V and end stage renal failure on dialysis * Patients lacking the capacity to consent for themselves * Known pregnancy or breastfeeding mothers * Complex congenital heart disease * Allergy to furosemide or bumetanide * Respiratory failure requiring non-invasive ventilation (CPAP/BiPAP) or invasive mechanical ventilatory support at the time of randomization * Hypotension with systolic blood pressure \<80 mm Hg at the time of randomization * Acute coronary syndrome * Sustained Ventricular tachycardia requiring treatment in the last 48 hours * Patients weighing ≤ 40 kg

Design outcomes

Primary

MeasureTime frameDescription
Urine Output24 hoursThe total volume of urine produced in milliliters (mL) over 24 hours after initiation of intravenous diuretic.

Secondary

MeasureTime frameDescription
Change in NT-proBNPBaseline, 24 hoursChange in NT-proBNP levels (pg/ml) from Baseline to 24 hours after initiation of intravenous diuretic.
Change in Urine Sodium ExcretionBaseline, 24 hoursChange in amount of sodium (mmol) excreted in the urine from Baseline to 24 hours after initiation of intravenous diuretic.
Change in Apnea-hypopnea IndexBaseline, 24 hoursThe apnea-hypopnea index (AHI) is the number of apneas and hypopneas per hour of sleep which is an indicator of severity of sleep apnea AHI will be measured using a Watch Pat or Nox device at Baseline and 24 hours after initiation of intravenous diuretic.
Change in Iohexol Glomerular Filtration Rate (GFR)Baseline, 24 hoursRenal or kidney function was measured by GFR determined by Iohexol clearance. Iohexol GFR will be measured at Baseline and 24 hours after initiation of intravenous diuretic.
Change in Peripheral Vein PressureBaseline, 24 hoursPeripheral vein pressure (mm Hg) will be recorded from existing IV lines through pressure transducer monitoring at Baseline and 24 hours after initiation of intravenous diuretic.
Change in Cardiac OutputBaseline, 24 hoursCardiac output (L/min) is the total volume of blood moved by the heart per minute and will be measured by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.
Change in Body WeightBaseline, 24 hoursChange in Body Weight (kg) from Baseline to 24 hours after initiation of intravenous diuretic.
Change in Right Atrial (RA) PressureBaseline, 24 hoursRA pressure (mm Hg) will be measured by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.
Change in Left Atrial (LA) StrainBaseline, 24 hoursLA strain will be assessed by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.
Change in Left Ventricular (LV) Global Longitudinal StrainBaseline, 24 hoursLV global longitudinal strain will be assessed by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.
Change in Right Ventricular (RV) Global Longitudinal StrainBaseline, 24 hoursRV global longitudinal strain will be assessed by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.
Change in E/e'Baseline, 24 hoursE/e' will be assessed using echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic. It is defined as the ratio of peak early diastolic mitral inflow velocity (E) and peak early diastolic mitral annular velocity (e').
Change in Estimated Right Ventricular (RV) Systolic PressureBaseline, 24 hoursEstimated RV systolic pressure (mm Hg) will be measured by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.

Countries

United States

Participant flow

Participants by arm

ArmCount
Ultra-high Dose Diuretic Group
Subjects with decompensated heart failure requiring hospitalization received IV bumetanide. Bumetanide: Bumetanide was administered via intravenous (IV) infusion at a dose of 12.5 mg two times a day (BID) for 2 doses total within 24 hours.
10
Standard Dose Diuretic Group
Subjects with decompensated heart failure requiring hospitalization received IV furosemide. Furosemide: Furosemide was administered via intravenous (IV) infusion at usual doses (twice the home dose of oral daily diuretic in furosemide equivalents) administered as 2 doses total within 24 hours. Furosemide equivalents were considered as follows (40 mg of intravenous furosemide = 1 mg oral bumetanide or 40 mg of torsemide or 80 mg of oral furosemide consistent with prior literature). The lowest dose of furosemide administered during the study was 40 mg IV two times a day (BID) and the maximum dose was 100 mg IV BID.
10
Total20

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicUltra-high Dose Diuretic GroupTotalStandard Dose Diuretic Group
Age, Continuous68.8 years
STANDARD_DEVIATION 12.4
69 years
STANDARD_DEVIATION 13
70.9 years
STANDARD_DEVIATION 14.3
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
10 Participants20 Participants10 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
8 Participants17 Participants9 Participants
Region of Enrollment
United States
10 participants20 participants10 participants
Sex: Female, Male
Female
3 Participants7 Participants4 Participants
Sex: Female, Male
Male
7 Participants13 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 100 / 10
other
Total, other adverse events
0 / 100 / 10
serious
Total, serious adverse events
0 / 100 / 10

Outcome results

Primary

Urine Output

The total volume of urine produced in milliliters (mL) over 24 hours after initiation of intravenous diuretic.

Time frame: 24 hours

ArmMeasureValue (MEAN)Dispersion
Ultra-high Dose Diuretic GroupUrine Output5283 mLStandard Deviation 2976
Standard Dose Diuretic GroupUrine Output2819 mLStandard Deviation 1060
Secondary

Change in Apnea-hypopnea Index

The apnea-hypopnea index (AHI) is the number of apneas and hypopneas per hour of sleep which is an indicator of severity of sleep apnea AHI will be measured using a Watch Pat or Nox device at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in Body Weight

Change in Body Weight (kg) from Baseline to 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

ArmMeasureValue (MEAN)Dispersion
Ultra-high Dose Diuretic GroupChange in Body Weight-2.6 kgStandard Deviation 3
Standard Dose Diuretic GroupChange in Body Weight-3.8 kgStandard Deviation 3.3
Secondary

Change in Cardiac Output

Cardiac output (L/min) is the total volume of blood moved by the heart per minute and will be measured by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data was not technically feasible to obtain for 3 subjects in the Ultra-High Dose diuretic group for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Ultra-high Dose Diuretic GroupChange in Cardiac Output-0.53 L/minStandard Deviation 0.83
Standard Dose Diuretic GroupChange in Cardiac Output0.29 L/minStandard Deviation 1.5
Secondary

Change in E/e'

E/e' will be assessed using echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic. It is defined as the ratio of peak early diastolic mitral inflow velocity (E) and peak early diastolic mitral annular velocity (e').

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in Estimated Right Ventricular (RV) Systolic Pressure

Estimated RV systolic pressure (mm Hg) will be measured by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in Iohexol Glomerular Filtration Rate (GFR)

Renal or kidney function was measured by GFR determined by Iohexol clearance. Iohexol GFR will be measured at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in Left Atrial (LA) Strain

LA strain will be assessed by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in Left Ventricular (LV) Global Longitudinal Strain

LV global longitudinal strain will be assessed by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in NT-proBNP

Change in NT-proBNP levels (pg/ml) from Baseline to 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

ArmMeasureValue (MEAN)Dispersion
Ultra-high Dose Diuretic GroupChange in NT-proBNP2898 pg/mlStandard Deviation 7278
Standard Dose Diuretic GroupChange in NT-proBNP-1705 pg/mlStandard Deviation 1712
Secondary

Change in Peripheral Vein Pressure

Peripheral vein pressure (mm Hg) will be recorded from existing IV lines through pressure transducer monitoring at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data was not collected for 1 subject in the Ultra-High dose diuretic group as the subject requested that peripheral vein pressure data not be collected on them.

ArmMeasureValue (MEAN)Dispersion
Ultra-high Dose Diuretic GroupChange in Peripheral Vein Pressure-10.9 mmHgStandard Deviation 7.5
Standard Dose Diuretic GroupChange in Peripheral Vein Pressure-4 mmHgStandard Deviation 3.1
Secondary

Change in Right Atrial (RA) Pressure

RA pressure (mm Hg) will be measured by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in Right Ventricular (RV) Global Longitudinal Strain

RV global longitudinal strain will be assessed by echocardiography conducted at Baseline and 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a result, no data was collected for this outcome measure.

Secondary

Change in Urine Sodium Excretion

Change in amount of sodium (mmol) excreted in the urine from Baseline to 24 hours after initiation of intravenous diuretic.

Time frame: Baseline, 24 hours

Population: Data for this outcome measure was not collected for any participants. Upon study initiation, this outcome measure was not technically feasible to obtain with existing staffing and was therefore not performed. As a results, no data was collected for this outcome measure.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026