- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00124137
Ultrafiltration Versus Intravenous (IV) Diuretics for Patients Hospitalized for Acute Decompensated Heart Failure: (UNLOAD)
Ultrafiltration Versus IV Diuretics for Patients Hospitalized for Acute Decompensated Heart Failure: A Prospective Randomized Clinical Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Congestive heart failure is an important public health issue. It remains the leading cause of hospitalization in Medicare beneficiaries. Ninety percent of all hospitalizations for CHF are due to fluid overload. Most of the expense related to the management of heart failure is due to hospital-based care; interventions that reduce the amount of time patients spend in the hospital may greatly decrease the cost associated with caring for these patients.
Hospital stay for patients admitted for acute decompensated congestive heart failure (adCHF) is largely dictated by how quickly the signs and symptoms of congestion can be relieved and whether ACE inhibitors can be started safely. Diuretics are usually effective in relieving congestion, but achieving adequate diuresis often requires a process of trial and error. Some patients are simply refractory to oral or intravenous diuretics. Diuretics stimulate adverse neurohormonal systems and can cause progressive azotemia. Bayliss (1977) showed that there is a significant increase in renin and aldosterone levels as a response to diuretic treatment rather than as a result of the heart failure itself. Gottlieb (2002) showed that loop diuretics diminish glomerular filtration rate in patients with heart failure. In addition, as more diuretics are given, serum electrolyte imbalances often occur, requiring additional monitoring of patients.
UF has been used as a therapeutic method to remove excessive fluid in patients for over 30 years. UF removes excess water without causing a significant clinical change in the electrolyte composition of the blood or causes adverse affects on the kidneys and neurohormonal system. Studies have shown that UF increases urine output, increases responsiveness to standard oral therapies and decreases readmission rate. While the usefulness of UF in this patient population has great potential, this form of therapy is not usually performed due to the need for invasive venous access and increased expense i.e. high flow dialysis machines. CHF Solutions has developed the Aquadex System that has FDA market clearance for UF. The advantage of the Aquadex System is its simplicity and the fact that it can be administered by means of peripheral catheters or with a central venous access. Early prospective series and subsequent clinical experience involving adCHF patients have shown that 4 to 8 liters can easily be withdrawn in a short amount of time using the peripheral access approach with the Aquadex System. Volume removal was not associated with disruption of electrolyte balance, worsening of renal distress or impact on blood pressure or heart rate of clinical significance. The Aquadex System is a predictable, safe, and effective way to ensure adequate volume removal that may result in shorter hospital stays, better symptom relief and more efficient dosing of medications for the treatment of adCHF.
The purpose of this study is to determine whether the Aquadex System can improve the acute management of patients with adCHF and maintain this improvement over a period of time compared to IV diuretics. Ultrafiltration in this patient population may decrease length of hospital stay and reduce hospital readmissions for heart failure leading to a significant reduction in costs for the treatment of these patients.
Study Type
Enrollment
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Illinois
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Lombard, Illinois, United States, 60148
- Midwest Heart Institute
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients hospitalized with primary diagnosis of acute decompensated congestive heart failure (adCHF)
Evidence of fluid overload as indicated by:
- pitting edema (2+) of lower extremities;
- jugular venous distension;
- pulmonary edema or pleural effusion;
- ascites;
- paroxysmal nocturnal dyspnea or 2-pillow orthopnea
Exclusion Criteria:
- Acute coronary syndrome
- Creatinine greater than 3.0
- Systolic blood pressure less than or equal to 90 mmHg
- Hematocrit greater than 45%
- Prior administration of IV vasoactive drugs in the emergency room (ER)
- Clinical instability requiring pressors during hospitalization
- Recent use of iodinated contrast material
- Severe concomitant disease expected to prolong hospitalization
- Sepsis
- On or requires renal dialysis
- Had a cardiac transplant
- Heparin allergy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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Total weight loss during first 48 hours of randomization
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Change in dyspnea score during first 48 hours of randomization
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Secondary Outcome Measures
Outcome Measure |
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Change in global assessment
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Change in quality of life (living with heart failure)
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Changes in brain natriuretic peptide (BNP)
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Changes in 6 minute walk test
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Total fluid loss during first 48 hours of randomization
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Changes in blood urea nitrogen (BUN) and creatinine
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Changes in renin and aldosterone
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Maria R Costanzo, MD, Midwest Heart
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2004-1
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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