Sub-Q Versus IV Furosemide in Acute Heart Failure

Study Overview
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Brief Summary
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This study evaluates the clinical efficacy of subcutaneously administered Furosemide Injection Solution versus intravenous administration of Furosemide Injection, United States Pharmacopeia (USP) in adult patients presenting to a heart failure clinic with decompensated heart failure. Half of the patients will receive a subcutaneously administered Furosemide Injection Solution; the other half will receive an intravenous administration of Furosemide Injection.

Detailed Description
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The prevalence of chronic heart failure is increasing, and despite advances in the treatment of chronic heart failure, in-hospital mortality and readmission are high. Heart failure costs the US about 32 billion per year, and a large percentage of the costs are due to hospitalizations. Most clinicians would agree that patients with decompensated heart failure presenting with hypotension, worsening renal function and altered mental status should be hospitalized. However, there is a subset of patients presenting with dyspnea and edema due to volume overload that necessitate rapid symptom improvement but are hemodynamically stable. Oral diuretics would likely be ineffective but hospital admission for IV diuretics seems excessive. The research hypothesis is that subcutaneously administered furosemide will be an effective alternative to IV furosemide for hemodynamically stable chronic heart failure patients presenting with volume overload in the ambulatory setting. Patients will be randomized to receive Furosemide Injection, USP intravenously or Furosemide Injection Solution (SCP-101) delivered subcutaneously. The IV patients will get the usual care of the heart failure clinic, which includes having an IV placed and delivery of a one-time dose of IV furosemide with the dose determined by the providers (maximum dose 160mg IV). The subcutaneous patients will receive 80mg of Furosemide Injection Solution (SCP-101) administered subcutaneously over 5 hours (30mg in first hour and 12.5mg/hour for 4 hours). Both groups of patients will be observed for 6 hours to assess diuresis. Patients will be asked to fill out a survey about their symptom improvement (Kansas City Cardiomyopathy questionnaire) and overall satisfaction related to the treatment experience. They will also be monitored for side effects including ototoxicity and discomfort at the access site (burning, itching, and pain). Electrolytes and renal function will be checked once after the patients receive diuretic therapy.

Official Title
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Prospective, Randomized, Parallel-Group Pilot Study Comparing IV Furosemide to Subcutaneous Furosemide in Acute Decompensated Heart Failure Patients

Conditions
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Congestive Heart Failure

Intervention / Treatment
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* Drug: Furosemide Injection Solution (SCP-101)
* Drug: Furosemide Injection Solution, USP


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: An Institutional Review Board (IRB) approved informed consent is signed and dated prior to any study-related activities. Male and female subjects > 18 years of age History of at least 3 months treated heart failure (NYHA class II/III/IV), or recent hospitalization for heart failure; presenting to Heart Failure Bridge Clinic (HFBC) with decompensated heart failure symptoms including elevated jugular venous pressure, dyspnea and peripheral edema where the decision is made to give IV diuretics Able to participate in the study in the opinion of the investigator Has the ability to understand the requirements of the study and is willing to comply with all study procedures Exclusion Criteria: Presenting with symptoms where it is anticipated that there is a high chance of hospitalization such as ischemia, uncontrolled arrhythmia, infection, hemodynamic instability (elevated or low blood pressure), respiratory compromise, or electrolyte abnormalities (>25% increase in creatinine from baseline, potassium, hyponatremia). On experimental medication or currently participating in a cardiovascular research study. Presence or need for urinary catheterization, urinary tract abnormality or disorder interfering with urination Any surgical or medical condition which in the opinion of the investigator may interfere with participation in the study or which may affect the outcome of the study Inability to comply with study requirements

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 100 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Furosemide Injection Solution, USP<br>Single dose determined by Investigator (maximum dose 160mg) administered intravenously by IV bolus over approximately 2 minutes (reference treatment) | Drug: Furosemide Injection Solution, USP<br> <br> * Other names: IV furosemide;|
| Experimental: Furosemide Injection Solution (SCP-101)<br>80 mg dose administered subcutaneously as 30 mg over the first hour and then as 12.5 mg per hour over the subsequent 4 hours (test treatment) | Drug: Furosemide Injection Solution (SCP-101)<br> <br> * Other names: sc Furosemide;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Urine Output | The volume of urine produced in milliliters over the 6 hours after drug delivery will be measured. | 6-hour period | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Heart Failure Symptom Scoring/Symptom Improvement | Will evaluate if subjective heart failure symptoms improve over the period of diuresis. Measured by Kansas City Cardiomyopathy Questionnaire | 6-hour period | 
| Number of Participants With Side Effects | Cumulative total of pain, local skin reactions (including hematoma and induration) and electrolyte abnormalities. | Up to 6 hours | 
| Urine Sodium | Total urinary sodium produced during the 6 hour urine collection | 6-hour period | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Congestive heart failure, Furosemide