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Add-on Diuretics in Acute Decompensated Heart Failure

Clinical Study Comparing Empagliflozin, Acetazolamide, and Metolazone as Add-on Therapies to Loop Diuretics in Acute Decompensated Heart Failure

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07372040
Enrollment
66
Registered
2026-01-28
Start date
2026-02-01
Completion date
2027-02-01
Last updated
2026-02-04

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

Conditions

Acute Decompensated Heart Failure

Keywords

Empagliflozin, Acetazolamide, Metolazone, Acute heart failure, Add-on therapies to Loop diuretics

Brief summary

The aim of this study is to compare the efficacy and safety of empagliflozin, acetazolamide, and metolazone as add-on therapies to loop diuretics in patients with acute decompensated heart failure.

Interventions

DRUGempagliflozin

Empagliflozin may augment the natriuretic and aquaretic actions of loop diuretics in patients with acute decompensated heart failure and it does not typically cause electrolyte disturbances and has been shown to improve outcomes in patients with heart failure

DRUGAcetazolamide

Acetazolamide can augment the action of loop diuretics in patients with acute decompensated heart failure

Metolazone can augment the action of loop diuretics in patients with acute decompensated heart failure

Sponsors

Tanta University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Masking Description

Intervention model description

Model Description

Eligibility

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

Inclusion criteria

1. Male or female patients older than 18 years. 2. Hospital admission with clinical diagnosis of acute decompensated heart failure with at least one clinical sign of volume overload (e.g. edema, ascites confirmed by echography or pleural effusion confirmed by chest X-ray or echography).

Exclusion criteria

1. Type 1 diabetes. 2. Chronic kidney disease with estimated glomerular filtration rate (eGFR) \<30 mL/min per 1.73 m² or end-stage kidney failure with the need for chronic dialysis treatment. 3. A systolic blood pressure of less than 90 mmHg. 4. Cardiogenic shock. 5. Receipt of acetazolamide maintenance therapy. 6. Receipt of an SGLT2 inhibitor, thiazide, or thiazide-like diuretic in the 48 hrs before randomization. 7. Any cause of heart failure leading to decompensation that will need urgent management (eg, acute coronary syndrome, unstable arrhythmias, acute pulmonary embolism). 8. Pregnant or breastfeeding women. 9. Moderate to severe anemia.

Design outcomes

Primary

MeasureTime frame
The cumulative urine output measured over 3 days3 days

Secondary

MeasureTime frameDescription
- The change in serum level of N-terminal pro-brain natriuretic peptide (NT-proBNP)4 daysBlood samples will be collected at baseline and after 4 days
The change in serum level of Soluble suppression of tumorigenicity 2 (sST2)4 daysBlood samples will be collected at baseline and after 4 days
The change in urinary level of Tissue inhibitor of metalloproteinases-2 (TIMP-2 )3 daysUrine samples will be collected at baseline and after 3 days
The change in urinary level of Insulin-like growth factor-binding protein 7 (IGFBP7)3 daysUrine samples will be collected at baseline and after 3 days
30-day mortalityup to 30 daysProportion of patients who die within 30 days of randomization
Proportion of patients achieving an ADVOR Score ≤ 1 without the need for escalating diuretic strategy3 daysthe treating physician will calculate the congestion score, on a scale from 0 to 10 on the basis of the sum of scores for the degree of edema (0 to 4), pleural effusion (0 to 3), and ascites (0 to 3), with higher scores indicating a worse condition on all scales

Countries

Egypt

Contacts

CONTACTDalia A Gomaa, MSc in clinical pharmacy
dalia_gomaa@pharm.tanta.edu.eg+20+01063410525
CONTACTDalia R El-Afify, Associate professor
dalia.mohamed1@pharm.tanta.edu.eg+20+01006831093
PRINCIPAL_INVESTIGATORDalia A Gomaa, MSc in clinical pharmacy

Tanta University

Outcome results

None listed

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