Effectiveness of Ultrafiltration in Treating People With Acute Decompensated Heart Failure and Cardiorenal Syndrome (The CARRESS Study) (CARRESS)

May 15, 2013 updated by: Duke University

CARdiorenal REScue Study in Acute Decompensated Heart Failure: CARRESS

Heart failure is a serious condition in which the heart's ability to pump blood through the body is impaired, often making a person feel weak or fatigued. When a person's condition worsens to the point of hospitalization, that person is said to have acute decompensated heart failure (ADHF). Abnormal kidney function in association with cardiac distress, known as cardiorenal syndrome, is a common complication of heart failure and causes further medical problems and need for hospitalization. While there are various effective treatments for heart failure, more research is needed to determine the best treatment for targeting both ADHF and cardiorenal syndrome. This study will compare the safety and effectiveness of ultrafiltration versus standard medical drug therapy in improving renal function and relieving fluid buildup in people hospitalized with ADHF and cardiorenal syndrome.

Study Overview

Status

Completed

Conditions

Detailed Description

Heart failure is a common condition that affects approximately 5 million people in the United States, with 550,000 new cases diagnosed each year. Common symptoms of heart failure include swelling and fluid buildup in the legs, feet, and/or lungs; shortness of breath; coughing; elevated heart rate; change in appetite; and fatigue. If left untreated, the condition of the heart may deteriorate so far that the person undergoes ADHF. The number of hospitalizations attributed to ADHF has risen significantly, with many people readmitted soon after discharge because of recurring symptoms or further medical complications, such as cardiorenal syndrome. Current heart failure treatments focus on removing excess fluid buildup, often by increasing urination with diuretic medications or by draining directly from the veins. Direct drainage from the veins, also known as ultrafiltration, may be the more effective method for treating people with ADHF and cardiorenal syndrome. This study will compare the safety and effectiveness of ultrafiltration versus standard medical drug therapy in improving renal function and relieving fluid buildup in people hospitalized with ADHF and cardiorenal syndrome.

Participation in this study will last 60 days. All potential participants will undergo initial screening, which will include a medical history, physical exam, blood draws, measurements of fluid intake and urine output, and questionnaires. These same evaluations and procedures will be repeated at various points during the hospital stay. Eligible participants will be randomly assigned to receive standard medical drug therapy or fluid removal by ultrafiltration. Standard medical drug therapy will involve the intravenous delivery of diuretics and possibly other doctor-recommended medications. Ultrafiltration will involve intravenously removing blood, passing it through an ultrafiltration device, and then returning the blood to the participant. During ultrafiltration, participants will be treated with a blood thinner through the IV, as well.

Follow-up assessments will occur at Days 30 and 60 after treatment. Follow-up assessments will include measurements of fluid intake, urine output, and vital signs; blood draws; physical exams; and questions about medications and status of recovery.

Study Type

Interventional

Enrollment (Actual)

188

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Quebec
      • Montreal, Quebec, Canada, H1T - 1C8
        • Montreal Heart Institute
    • Arizona
      • Phoenix, Arizona, United States, 85054
        • Mayo Clinic Arizona
    • Georgia
      • Atlanta, Georgia, United States, 30310
        • Morehouse School Of Medicine
    • Minnesota
      • Minneapolis, Minnesota, United States, 55415
        • Minnesota Heart Failure Network
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic
    • North Carolina
      • Durham, North Carolina, United States, 27705
        • Duke University Medical Center
    • Texas
      • Houston, Texas, United States, 77030
        • Baylor College of Medicine
    • Utah
      • Murray, Utah, United States, 84107
        • University of Utah Health Sciences Center
    • Vermont
      • Burlington, Vermont, United States, 05401
        • University of Vermont - Fletcher Allen Health Care

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria:

  • age 18 or older
  • admitted to the hospital with a primary diagnosis of decompensated heart failure
  • onset of cardiorenal syndrome after hospitalization or pre-hospitalization
  • after hospitalization - onset of cardiorenal syndrome after hospitalization must occur within 10 days from the time of admission after receiving IV diuretics
  • pre-hospitalization - onset of cardiorenal syndrome pre-hospitalization must occur within 12 weeks of the index hospitalization in the setting of escalating doses of outpatient diuretics
  • persistent volume overload

Exclusion criteria:

  • intravascular volume depletion based on investigator"s clinical assessment
  • acute coronary syndrome within 4 weeks
  • indication for hemodialysis
  • creatinine > 3.5 mg per deciliter at admission to the hospital
  • systolic blood pressure < 90 mmHg at the time of enrollment
  • alternative explanation for worsening renal function such as obstructive nephropathy,contrast induced nephropathy, acute tubular necrosis
  • Hematocrit > 45%
  • poor venous access
  • clinical instability likely to require the addition of intravenous vasoactive drugs including vasodilators and/or inotropic agents
  • allergy or contraindications to the use of heparin
  • the use of iodinated radio contrast material in the last 72 hours or anticipated use of IV contrast during the current hospitalization
  • known bilateral renal artery stenosis
  • active myocarditis
  • hypertrophic obstructive cardiomyopathy
  • severe valvular stenosis
  • complex congenital heart disease
  • sepsis or ongoing systemic infection
  • enrollment in another clinical trial involving medical or device based interventions

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Stepped pharmacologic care
Stepped care will provide treating physicians with guidelines for the intensification of diuretic therapy and the possible use of vasodilators and inotropes.
Stepped care will provide treating physicians with guidelines for the intensification of diuretic therapy and the possible use of vasodilators and inotropes.
Experimental: Ultrafiltration
All loop diuretics will be discontinued. Treatment will involve slow continuous ultrafiltration until an optimal volume status has been achieved. Ultrafiltration therapy will be initiated after the placement of appropriate intravenous access and will continue until the participant's signs and symptoms of congestion have been optimized. Fluid status will be managed exclusively by ultrafiltration using the Aquadex system 100 (CHF Solutions, Inc.) according to the manufacturer's specifications. The use of vasodilators or inotropic agents will be prohibited unless deemed necessary for rescue therapy.
All loop diuretics will be discontinued. Treatment will involve slow continuous ultrafiltration until an optimal volume status has been achieved. Ultrafiltration therapy will be initiated after the placement of appropriate intravenous access and will continue until the participant's signs and symptoms of congestion have been optimized. Fluid status will be managed exclusively by ultrafiltration using the Aquadex system 100 (CHF Solutions, Inc.) according to the manufacturer's specifications. The use of vasodilators or inotropic agents will be prohibited unless deemed necessary for rescue therapy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change in Serum Creatinine
Time Frame: Change from Baseline to Day 4
Change from Baseline to Day 4
Change in Weight
Time Frame: Change from Baseline to Day 4
Change from Baseline to Day 4

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Glomerular Filtration Rate
Time Frame: Change from Baseline to Day 4
Change from Baseline to Day 4
Change in Serum Creatinine
Time Frame: Change from Baseline to Day 7
Change from Baseline to Day 7
Change in Glomerular Filtration Rate
Time Frame: Change from Baseline to Day 7
Change from Baseline to Day 7
Changes in Weight
Time Frame: Change from Baseline to Day 1
Change from Baseline to Day 1
Changes in Weight
Time Frame: Change from Baseline to Day 2
Change from Baseline to Day 2
Change in Weight
Time Frame: Change from Baseline to Day 3
Change from Baseline to Day 3
Changes in Weight
Time Frame: Change from Baseline to Day 5
Change from Baseline to Day 5
Change in Weight
Time Frame: Change from Baseline to Day 6
Change from Baseline to Day 6
Cumulative Net Fluid Loss
Time Frame: Randomization through Day 1
Randomization through Day 1
Cumulative Net Fluid Loss
Time Frame: Randomization through Day 2
Randomization through Day 2
Cumulative Net Fluid Loss
Time Frame: Randomization through Day 3
Randomization through Day 3
Cumulative Net Fluid Loss
Time Frame: Randomization through Day 4
Randomization through Day 4
Cumulative Net Fluid Loss
Time Frame: Randomization through Day 5
Randomization through Day 5
Cumulative Net Fluid Loss
Time Frame: Randomization through Day 6
Randomization through Day 6
Cumulative Net Fluid Loss
Time Frame: Randomization through Day 7
Randomization through Day 7
Dyspnea Visual Analog Scale
Time Frame: Change from Baseline to Day 4

Scale range: -100 , +100

-100=worse, +100=better

Change from Baseline to Day 4
Change in Global Visual Analog Scale
Time Frame: Change from Baseline to Day 4

Scale range: -100 , +100

-100=worse, +100=better Participants asked to mark their global well being on a 10 cm vertical line, with the top labeled "best you have ever felt" and the bottom labeled "worst you have ever felt".

Change from Baseline to Day 4
Change in Dyspnea Visual Analog Scale
Time Frame: Baseline to Day 7/Discharge

Scale range: -100 , +100

-100=worse, +100=better

Baseline to Day 7/Discharge
Change in Global Visual Analog Scale
Time Frame: Baseline to Day 7/Discharge

Scale range: -100 , +100

-100=worse, +100=better Participants asked to mark their global well being on a 10 cm vertical line, with the top labeled "best you have ever felt" and the bottom labeled "worst you have ever felt".

Baseline to Day 7/Discharge
Change in Furosemide-Equivalent Dose
Time Frame: Baseline to Day 7/Discharge
Furosemide-Equivalent Dose is the dose bumetanide or torsemide converted to furosemide equivalent (Torsemide dose x 2,Bumetanide dose x 40)
Baseline to Day 7/Discharge
Change in Blood Sodium Level
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Potassium Level
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Urea Nitrogen/Urea
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Bicarbonate Level
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Hemoglobin Level
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Sodium Level
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Potassium Level
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Urea Nitrogen/Urea
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Bicarbonate Level
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Hemoglobin Level
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Cystatin C
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Uric Acid
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood N- Terminal Pro- BNP
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Plasma Renin Activity
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood High Sensitivity Troponin I
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Aldosterone
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Procollagen III N-terminal Propepide
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Endothelin-1
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood High Sensitivity C-Reactive Protein
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Carboxy-terminal Telopeptide of Collagen Type I
Time Frame: Baseline to Day 4
Baseline to Day 4
Change in Blood Cystatin C
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Uric Acid
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood N Terminal Pro-Natriuretic Peptide
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Plasma Renin Activity
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood High Sensitivity Troponin I
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Aldosterone
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Procollagen III N-terminal Propepide
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Endothelin-1
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood Carboxy-terminal Telopeptide of Collagen Type I
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Change in Blood High Sensitivity C-Reactive Protein
Time Frame: Baseline to Day 7/Discharge
Baseline to Day 7/Discharge
Weight Change
Time Frame: Baseline to Day 30
Baseline to Day 30
Change in Furosemide-Equivalent Dose
Time Frame: Baseline to Day 30
Furosemide-Equivalent Dose is the dose bumetanide or torsemide converted to furosemide equivalent (Torsemide dose x 2,Bumetanide dose x 40)
Baseline to Day 30
Creatinine Change
Time Frame: Baseline to Day 30
Baseline to Day 30
Glomerular Filtration Rate Change
Time Frame: Baseline to Day 30
Baseline to Day 30
Weight Change
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Furosemide-Equivalent Dose
Time Frame: Baseline to Day 60
Furosemide-Equivalent Dose is the dose bumetanide or torsemide converted to furosemide equivalent (Torsemide dose x 2,Bumetanide dose x 40)
Baseline to Day 60
Best Available Serum Creatinine Change
Time Frame: Baseline to Day 60
Core laboratory when available. If not available, local laboratory results were used.
Baseline to Day 60
Best Available Glomerular Filtration Rate Change
Time Frame: Baseline to Day 60
Core laboratory when available. If not available, local laboratory results were used.
Baseline to Day 60
Change in Blood Uric Acid
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood Cystatin C
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood N Terminal Pro - B Natriuretic Peptides
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Plasma Renin Activity
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood High Sensitivity Troponin I
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood Aldosterone
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood Procollagen III N-terminal Propepide
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood Endothelin-1
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood High Sensitivity C-Reactive Protein
Time Frame: Baseline to Day 60
Baseline to Day 60
Change in Blood Carboxy-terminal Telopeptide of Collagen Type I
Time Frame: Baseline to Day 60
Baseline to Day 60

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2008

Primary Completion (Actual)

March 1, 2012

Study Completion (Actual)

June 1, 2012

Study Registration Dates

First Submitted

January 25, 2008

First Submitted That Met QC Criteria

January 25, 2008

First Posted (Estimate)

February 6, 2008

Study Record Updates

Last Update Posted (Estimate)

June 24, 2013

Last Update Submitted That Met QC Criteria

May 15, 2013

Last Verified

May 1, 2013

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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