Fluid removal with the Reprieve System for acute decompensated heart failure
Official title: Fluid Management of Acute Decompensated Heart Failure Subjects Treated With Reprieve System (FASTR-II)
Run by Reprieve Cardiovascular, Inc · NCT06898515 · Data updated 2026-11-12
This trial will test whether the Reprieve System removes excess fluid more effectively than standard IV diuretics in adults hospitalized with acute decompensated heart failure who are at risk for diuretic resistance.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 22 Years and up |
| Sex | All |
| Enrollment | 400 (estimated) |
| Sponsor | Reprieve Cardiovascular, Inc Industry-sponsored |
| Locations | 50 sites (Irvine, California and 49 other locations) |
| Status | Recruiting |
| Started | July 28, 2025 |
| Main results expected | August 2027 |
| Study ends | December 2027 |
| Registry record updated | October 13, 2026 |
| Trial ID | NCT06898515 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults (≥22 years) hospitalized with acute decompensated heart failure, more than about 10 lb over dry weight, on outpatient loop diuretics, and showing signs that they may be resistant to standard diuretics (low urine output after IV diuretic, low spot urine sodium, or hypochloremia).
✕Probably not a fit
Patients unlikely to benefit include those not at risk for diuretic resistance, those with urologic contraindications to catheter placement, or those who are hemodynamically unstable or expected to have very short admissions.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This phase 3 interventional trial compares device-guided decongestive therapy using the Reprieve System to optimal diuretic therapy (including IV furosemide) in adults admitted with acute decompensated heart failure. Eligible participants are adults expected to remain hospitalized >24 hours, on a chronic loop diuretic, at least 10 lb above dry weight, and meeting predefined markers of elevated diuretic resistance risk (low urine output after IV diuretic, low spot urine sodium, or hypochloremia). Participants receive either the Reprieve System intervention or standard care with diuretics and are monitored for measures of decongestion, urine output, safety, and clinical outcomes. The study is being conducted at several California medical centers and aims to determine whether the device provides more efficient fluid removal than current diuretic strategies.
Why it matters
Potential benefit: If successful, the Reprieve System could help remove excess fluid faster and improve symptoms and possibly shorten hospital stays for patients with ADHF who respond poorly to diuretics.
How similar studies have gone: Earlier-stage and device-assisted decongestion studies have shown some promising signals but definitive large-scale phase 3 evidence for device-based approaches remains limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Diagnosis of HF with expected hospitalization \>24 hours, with \>1 new or worsening symptom and \>2 physical examination, laboratory, or invasive findings of HF, and receiving or with plans to receive a HF-specific treatment 2. ≥10 lb. (4.5 kg) above dry weight as estimated by health care provider. 3. Current outpatient prescription for daily loop diuretic. 4. Participants ≥ 22 years of age able to provide informed consent and comply with study procedures. 5. Elevated risk of diuretic resistance, as indicated by at least one of the following: Baseline hypochloremia OR Urine output \<1L in the 6 hours following IV loop diuretic \>=40 mg furosemide equivalent OR Spot urine sodium \<100 mmol/L 1-2 hours after IV loop diuretic \>= 40 mg furosemide equivalent Exclusion Criteria: 1. Urologic issues that would predispose the participant to a high rate of urogenital trauma or infection with catheter placement or known inability to place a Foley catheter. 2. Hemodynamic instability as defined by any of the following: sustained systolic blood pressure \<90 mmHg for \>15 minutes within the past 48 hours, use of IV vasopressors or inotropes within past 48 hours, and/or current or previous mechanical circulatory support within the last week. 3. Uncontrolled arrhythmias defined as sustained HR \>130 beats/min for \>10 minutes within the past 48 hours. 4. Severe lung disease with chronic home oxygen requirement \>2L/min. 5. Acute infection with evidence of systemic involvement (e.g., clinically suspected infection with fever or elevated serum white blood cell count). 6. Estimated glomerular filtration rate (eGFR) \<25 ml/min/1.73m2 (calculated with either MDRD or CKD-EPI) or current use of renal replacement therapy (RRT). 7. Significant left ventricular outflow obstruction, severe uncorrected complex congenital heart disease, known severe stenotic valvular disease, severe infiltrative or constrictive cardiomyopathy or other diagnosis that would make aggressive decongestion unsafe. 8. Current or recent (\< 30 days) type I myocardial infarction (e.g., acute coronary syndrome such as NSTEMI or STEMI from plaque rupture), coronary artery bypass surgery, or stroke. An isolated troponin elevation (e.g., from volume overload or demand ischemia) is not a reason for exclusion. 9. Severe electrolyte abnormalities (e.g., serum potassium \<3.0 mEq/L, magnesium \<1.3 mEq/L or sodium \<125 mEq/L). Note: These are based on baseline/screening labs. Participants whose electrolyte levels are repleted cannot be reassessed for inclusion in the trial. 10. Other concomitant disease or condition the investigator believes will make it difficult to follow instructions or comply with study procedures and/or follow-up visits, including expected prolonged hospitalization for reasons other than decongestive therapy 11. Currently enrolled in an interventional trial (observational studies are permitted). 12. Life expectancy less than 6 months. 13. Women who are pregnant or breastfeeding.
Where it's running
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University of California Irvine
Irvine, California, United States Recruiting -
Memorial Care Long Beach
Long Beach, California, United States Recruiting -
UC Davis Medical Center
Sacramento, California, United States Recruiting -
University of Florida
Gainesville, Florida, United States Recruiting -
Piedmont Atlanta Hospital
Atlanta, Georgia, United States Recruiting -
Wellstar Hospital
Atlanta, Georgia, United States Recruiting
Show 44 more locations
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Piedmont Augusta Hospital
Augusta, Georgia, United States Recruiting -
Northeast Georgia Medical Center
Gainesville, Georgia, United States Recruiting -
University of Kansas Medical Center
Kansas City, Kansas, United States Recruiting -
University of Louisville Hospital
Louisville, Kentucky, United States Recruiting -
Trinity Health Ann Arbor Hospital
Ann Arbor, Michigan, United States Recruiting -
Corewell Health Butterworth Hospital
Grand Rapids, Michigan, United States Recruiting -
Corewell William Beaumont University Hospital
Royal Oak, Michigan, United States Recruiting -
Minneapolis Heart Institute
Minneapolis, Minnesota, United States Recruiting -
University of Mississippi
Jackson, Mississippi, United States Recruiting -
St. Louis VA
St Louis, Missouri, United States Recruiting -
Washington University
St Louis, Missouri, United States Recruiting -
Duke University
Durham, North Carolina, United States Recruiting -
Moses H. Cone Memorial Hospital
Greensboro, North Carolina, United States Recruiting -
Atrium Health Wake Forest Baptist Medical Center
Winston-Salem, North Carolina, United States Recruiting -
Lindner Center at Christ Hospital
Cincinnati, Ohio, United States Recruiting -
UH Cleveland Medical Center
Cleveland, Ohio, United States Recruiting -
Ohio State University Hospital
Columbus, Ohio, United States Recruiting -
Oklahoma Heart Hospital
Oklahoma City, Oklahoma, United States Recruiting -
University of Pennsylvania
Philadelphia, Pennsylvania, United States Recruiting -
Prisma Health Greenville Memorial Hospital
Greenville, South Carolina, United States Recruiting -
Vanderbilt University Medical Center
Nashville, Tennessee, United States Recruiting -
Baylor Scott and White
Dallas, Texas, United States Recruiting -
Baylor College of Medicine Ben Taub Hospital
Houston, Texas, United States Recruiting -
Houston Methodist
Houston, Texas, United States Recruiting -
Memorial Hermann-Texas Medical Center
Houston, Texas, United States Recruiting -
Inova Fairfax Medical Campus
Falls Church, Virginia, United States Recruiting -
VCU Medical Center
Richmond, Virginia, United States Recruiting -
Aurora St. Luke's Medical Center
Milwaukee, Wisconsin, United States Recruiting -
Universitätsklinikum Gießen (UKGM)
Giessen, Germany Recruiting -
Hannover University Hospital
Hanover, Germany Recruiting -
University Hospital Heidelberg
Heidelberg, Germany Recruiting -
Universitaria delle Marche
Ancona, Italy Recruiting -
ASST Azienda Ospedaliera Papa Giovanni XXIII
Bergamo, Italy Recruiting -
ASST Niguarda Great Metropolitan Hospital
Milan, Italy Recruiting -
Medical University of Białystok
Bialystok, Poland Recruiting -
Medical University of Lodz
Lodz, Poland Recruiting -
University Hospital Wroclaw
Wroclaw, Poland Recruiting -
Vall d'Hebron University Hospital
Barcelona, Spain Recruiting -
Hospital de Bellvitge
Barcelona, Spain Recruiting -
Hospital Ramon y Cajal
Madrid, Spain Recruiting -
Puerta de Hierro Majadahonda University Hospital
Madrid, Spain Recruiting -
Clínico Universitario de Valencia
Valencia, Spain Recruiting -
Hospital General Valencia
Valencia, Spain Recruiting -
Advocate Christ Medical Center
Oak Lawn, Illinois, United States Not yet recruiting
Study contacts
- Principal investigator: Javed Butler, MD, MPH, MBA — Baylor Scott and White Health
- Study coordinator: Annemarie Forrest
- Email: aforrest@reprievecardio.com
- Phone: 617-848-0400
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Evaluating a noninvasive tissue sensor to detect cardiogenic shock earlier in heart patients
This pilot, noninvasive study tests whether the NIRSense wearable can help detect deterioration in adults with cardiogenic shock risk due to heart attack or heart failure.
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BEAT-SHOCK: Baseline Registry for Acute Cardiogenic Shock at Basel
This registry collects and shares data on adults with cardiogenic shock admitted to University Hospital Basel to help understand how these patients are treated and how they fare.
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Daily lung ultrasound to see if it shortens hospital stays for adults with acute decompensated heart failure
This study tests whether daily lung ultrasound can shorten hospital stays and reduce readmissions for adults with acute decompensated heart failure.
-
Adding extra diuretics to standard care for acute decompensated heart failure
This trial will test whether adding empagliflozin, acetazolamide, or metolazone to loop diuretics helps adults hospitalized with acute decompensated heart failure remove fluid and feel better.
-
Acetazolamide versus metolazone added to usual diuretics for acute decompensated heart failure
This trial will test whether adding acetazolamide or metolazone to standard diuretics works better and is safer for adults hospitalized with acute decompensated heart failure.
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Using ultrasound to guide treatment for heart failure patients
This study is testing if using ultrasound to guide treatment can help hospitalized heart failure patients feel better by managing fluid buildup in their bodies.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.