Determining Optimal Dose and Duration of Diuretic Treatment in People With Acute Heart Failure (The DOSE-AHF Study)

February 5, 2018 updated by: Duke University

Diuretic Optimal Strategy Evaluation in Acute Heart Failure (The DOSE-AHF Study)

Heart failure is a disorder in which the heart does not pump blood adequately. This can lead to several serious problems, including reduced blood flow throughout the body, congestion of blood in the veins and lungs, and fluid accumulation in various organs and limbs. Diuretics are often used to address the problem of fluid accumulation, but the optimal dose and the amount of time over which to administer each dose are unclear. This study will compare high and low doses of diuretics administered over longer and shorter periods of time to determine the safest and most effective combination.

Study Overview

Detailed Description

Heart failure is a common disorder in which the heart cannot pump enough blood to meet the needs of the rest of the body. Heart failure symptoms include shortness of breath, swelling, and fatigue. Standard treatment for the swelling associated with heart failure includes the use of diuretic medications, such as furosemide, which cause urination and the removal of excess fluids in the body. Although furosemide has been used to treat heart failure patients for many years, it is still unclear how much of the drug to use, and over what time period the drug should be given. This study will evaluate whether furosemide treatment is safer and more effective when the drug is given in high doses versus low doses and in two to three separate doses versus one continuous infusion.

Participants in this study will begin study procedures within the first 24 hours of their hospital admission for heart failure. Participants will be randomly assigned to receive one of the following four treatments: high dose furosemide via continuous intravenous (IV) infusion and placebo every 12 hours via IV bolus; low dose furosemide via continuous IV infusion and placebo every 12 hours via IV bolus; high dose furosemide every 12 hours via IV bolus and placebo via continuous IV infusion; and low dose furosemide every 12 hours via IV bolus and placebo via continuous IV infusion. Each participant will receive treatment for the first 72 hours of his or her hospital stay. Participants will answer questionnaires and undergo physical examinations and blood tests during the first 96 hours of hospitalization and again before hospital discharge or on Day 7, if that occurs first. Participants will be asked to return to their doctors 60 days following hospital discharge to evaluate their responses to treatment.

Study Type

Interventional

Enrollment (Actual)

308

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
    • Georgia
      • Atlanta, Georgia, United States, 30310
        • Morehouse School of Medicine
    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Brigham and Women's Hospital
    • 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

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Prior clinical diagnosis of heart failure that was treated with daily oral loop diuretics for at least 1 month
  • Current diagnosis of heart failure, as defined by the presence of at least 1 symptom (dyspnea, orthopnea, or edema) AND 1 sign (rales on auscultation, peripheral edema, ascites, pulmonary vascular congestion on chest radiography)
  • Daily oral dose of furosemide between 80 mg and 240 mg (or equivalent)
  • Identified within 24 hours of hospital admission
  • Current treatment plan includes IV loop diuretics for at least 48 hours

Exclusion Criteria:

  • Brain natriuretic peptide (BNP) less than 250 mg/mL or N-terminal prohormone brain natriuretic peptide (NT-proBNP) less than 1000 mg/mL
  • Received IV vasoactive treatment or ultra-filtration therapy for heart failure since initial presentation
  • Treatment plan during current hospitalization includes IV vasoactive treatment or ultra-filtration for heart failure
  • Substantial diuretic response to pre-randomization diuretic dosing such that higher doses of diuretics would be medically inadvisable
  • Systolic blood pressure less than 90 mm Hg
  • Serum creatinine level greater than 3.0 mg/dL at baseline or currently undergoing renal replacement therapy
  • Hemodynamically significant arrhythmias
  • Acute coronary syndrome within 4 weeks prior to study entry
  • Active myocarditis
  • Hypertrophic obstructive cardiomyopathy
  • Severe stenotic valvular disease
  • Restrictive or constrictive cardiomyopathy
  • Complex congenital heart disease
  • Constrictive pericarditis
  • Non-cardiac pulmonary edema
  • Clinical evidence of digoxin toxicity
  • Need for mechanical hemodynamic support
  • Sepsis
  • Terminal illness (other than heart failure) with expected survival time of less than 1 year
  • History of adverse reaction to the study drugs
  • Use of IV iodinated radiocontrast material within 72 hours prior to study entry or planned during hospitalization
  • Enrollment or planned enrollment in another randomized clinical trial during this hospitalization
  • Inability to comply with planned study procedures

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: Factorial Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Q12 hour bolus
Furosemide-Q12 hour bolus
1x oral dose
Other Names:
  • Loop diuretic
2.5x oral dose
Other Names:
  • loop diuretic
Experimental: Continuous Infusion
Furosemide-Continuous Infusion
1x oral dose
Other Names:
  • Loop diuretic
2.5x oral dose
Other Names:
  • loop diuretic
Experimental: Low Intensification
Furosemide-Low Intensification
Q12 hours bolus
Other Names:
  • Loop diuretics
Continuous infusion
Other Names:
  • Loop diuretic
Experimental: High Intensification
Furosemide-High Intensification
Q12 hours bolus
Other Names:
  • Loop diuretics
Continuous infusion
Other Names:
  • Loop diuretic

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient Well Being, as Determined by a Visual Analog Scale
Time Frame: Measured at 72 hours
Global Visual Analog Scale Scale Range 0-7200; higher score is better
Measured at 72 hours
Change in Serum Creatinine
Time Frame: Measured at baseline and 72 hours
Measured at baseline and 72 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Weight
Time Frame: baseline and 96 hours
baseline and 96 hours
Proportion of Patients Free of Congestion
Time Frame: Measured at 72 hours
Measured at 72 hours
Dyspnea, as Determined by Visual Analog Scales
Time Frame: Measured at 24 hours
Global Visual Analog Scale Scale Range 0-2400; higher score is better
Measured at 24 hours
Change in Serum Creatinine
Time Frame: baseline and 24 hours
baseline and 24 hours
Change in Cystatin C
Time Frame: baseline and 72 hours
baseline and 72 hours
Change in Serum Creatinine
Time Frame: baseline and 48 hours
baseline and 48 hours
Change in Serum Creatinine
Time Frame: baseline and 96 hours
baseline and 96 hours
Change in Serum Creatinine
Time Frame: baseline and day 7
baseline and day 7
Change in Serum Creatinine
Time Frame: baseline and day 60
baseline and day 60
Patient Well Being, as Determined by a Visual Analog Scale
Time Frame: Measured at 24 hours
Global Visual Analog Scale Scale Range 0-2400; higher score is better
Measured at 24 hours
Patient Well Being, as Determined by a Visual Analog Scale
Time Frame: 48 hours
Global Visual Analog Scale Scale Range 0-4800; higher score is better
48 hours
Dyspnea VAS
Time Frame: 48 hours
Dyspnea Visual Analog Scale Scale Range 0-4800; higher score is better
48 hours
Dyspnea VAS
Time Frame: 72 hours
Dyspnea Visual Analog Scale Scale Range 0-7200; higher score is better
72 hours
Change in Cystatin C
Time Frame: baseline and day 7
baseline and day 7
Change in Cystatin C
Time Frame: baseline and day 60
baseline and day 60
Change in Uric Acid
Time Frame: baseline and 72 hours
baseline and 72 hours
Change in Uric Acid
Time Frame: baseline and day 7
baseline and day 7
Change in Uric Acid
Time Frame: baseline and Day 60
baseline and Day 60
Change in B-type Natriuretic Peptide
Time Frame: baseline and 72 hours
Change in NTproBNP
baseline and 72 hours
Change in NTproBNP
Time Frame: baseline and Day 7
baseline and Day 7
Change in NTproBNP
Time Frame: baseline and Day 60
baseline and Day 60
Presence of Cardiorenal Syndrome
Time Frame: Within 72 hours
Within 72 hours
Treatment Failure
Time Frame: Within 72 hours
Treatment failure is defined as the patient met cardiorenal syndrome endpoint, worsening or persistent heart failure endpoint, patient died, or there was clinical evidence of overdiuresis requiring intervention within first 72 hours after randomization
Within 72 hours
Net Fluid Loss
Time Frame: Through 24 hours
Through 24 hours
Net Fluid Loss
Time Frame: Through 48 hours
Through 48 hours
Net Fluid Loss
Time Frame: Through 72 hours
Through 72 hours

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

February 1, 2008

Primary Completion (Actual)

January 1, 2010

Study Completion (Actual)

February 1, 2010

Study Registration Dates

First Submitted

December 18, 2007

First Submitted That Met QC Criteria

December 18, 2007

First Posted (Estimate)

December 19, 2007

Study Record Updates

Last Update Posted (Actual)

March 6, 2018

Last Update Submitted That Met QC Criteria

February 5, 2018

Last Verified

April 1, 2013

More Information

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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