Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up

Using urine sodium to guide IV diuretic dosing for hospitalized acute heart failure

Official title: Urine Sodium-Driven Diuretic Adjustment Strategy in Acute Decompensated Heart Failure

Run by Lakeland Regional Health Systems, Inc. · NCT07263035 · Data updated 2026-11-12

This trial will test whether increasing IV diuretic doses to reach higher urine sodium levels helps hospitalized adults with acute decompensated heart failure remove more salt and fluid and have fewer readmissions.

More Heart Failure trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment600 (estimated)
SponsorLakeland Regional Health Systems, Inc.
Academic / other
Locations1 site (Lakeland, Florida)
StatusRecruiting
StartedApril 1, 2026
Main results expectedJune 1, 2027
Study endsSeptember 1, 2027
Registry record updatedApril 9, 2026
Trial IDNCT07263035 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal participants are adults (≥18) hospitalized at Lakeland Regional Hospital with acute decompensated heart failure and clinical signs of volume overload who are not critically ill and not on dialysis.

Probably not a fit

Patients admitted to intensive care, with ST-elevation MI, type 1 NSTEMI, primary non-cardiac dyspnea, anuria, end-stage renal disease, or on dialysis are unlikely to qualify or benefit from this strategy.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults admitted with acute decompensated heart failure are randomized to one of three arms: a low urine sodium target (50 µmol), a higher urine sodium target (85 µmol), or standard of care. Urine sodium is measured 2–4 hours after intravenous furosemide and, if the natriuretic response is inadequate, the diuretic dose is increased; this approach is repeated during the first 72 hours of admission. Primary comparisons focus on natriuresis and diuresis, with secondary outcomes including hospital length of stay and readmission frequency. The trial is single-center and interventional, using a protocolized urine-sodium-guided escalation of loop diuretics versus usual care.

Why it matters

Potential benefit: If successful, this approach could speed and increase fluid removal in hospitalized patients and reduce length of stay and readmissions.

How similar studies have gone: Smaller observational and physiologic studies have shown urine sodium can predict diuretic response, but randomized outcome data using urine-sodium-guided dosing are limited, making this a relatively novel outcome-focused approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* The study will target adults 18 years of age or older admitted to Lakeland Regional Medical Center who:

  * Have a primary diagnosis of acute decompensated heart failure, and
  * Have at least one of the following signs of hypervolemia:

    * Bilateral lower extremity pitting edema
    * Jugular venous distension
    * Hepatojugular reflex
    * Crackles on pulmonary exam, or
    * Chest x-ray demonstrating pulmonary edema or pleural effusions

Exclusion Criteria:

* Exclusion criteria include:

  * Admission to the intensive care unit
  * Presence of ST-elevated myocardial infarction
  * Presence of type 1 non-ST elevated myocardial infarction
  * Dyspnea primarily due to non-cardiac cause as judged by the emergency medicine physician or admitting physician
  * Use of supplemental oxygen totaling at least 3 L per minute or greater at baseline
  * Anuria
  * End-stage renal disease per KDIGO criteria
  * Dialysis use

Where it's running

  • Lakeland Regional Hospital
    Lakeland, Florida, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.