The Use of Furosemide in Patients on Dialysis

August 9, 2016 updated by: Unity Health Toronto

The Determinants of the Effectiveness of the Use of Furosemide in Patients on Dialysis

Patients often begin dialysis taking diuretics (stimulate the kidney to excrete salt and water). Once on dialysis, these drugs are often continued. Whether these drugs are still needed, or even effective is often unclear.This study,by evaluating the composition of the patients' urine when off the drug, will predict which patients should benefit from the drug. By comparing their 24 hour volume both off and on the drug, the impact of the drug will be established. The results will allow the prediction of which patients, in the future, should take the drug. The hypothesis is: Among dialysis recipients, evaluation of the random urine sodium concentration will help predict the likelihood of a positive response to Furosemide, as manifested by an increased urine volume and sodium excretion.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Patients often begin dialysis on a significant dose of diuretic due to the retention of sodium and water in the predialysis phase of their chronic kidney disease (CKD). The quandary often faced by the care team is whether or not the diuretic should be continued on dialysis, particularly after they have been on dialysis for a period of time. For the appropriate dialysis patient, a daily dose of furosemide,, minimizes the interdialytic weight gain, may result in better blood pressure (BP) control and may lower the risk of heart failure. Furthermore, there may be a favourable impact on cardiac remodeling and cardiac morbidity and mortality. The diuretic may also increase the excretion of potassium, thereby reducing the likelihood of hyperkalemia.

Patients with significant renal sodium reabsorption would be the ones who would be expected to respond to furosemide. Thus patients whose urine [Na] is less than 80 mM are reabsorbing significant amounts of filtered Na (glomerular filtrate [Na] would be between 130 and 140mM) and thus might be expected to respond to furosemide. (This is premised on the assumption that the urine [Na] does not vary much during the day in chronic dialysis recipients, but this will be established during the course of the study.)

The patients Dry Weight will be optimized prior to entry into study according to usual care: this involves integrating BP data, the central venous pressure as assessed by the internal jugular vein, and patient symptoms (eg,dyspnea during the interdialytic interval,prolonged lightheadedness/presyncope/fatigue after dialysis)..

Patients on dialysis who are taking furosemide will be asked to stop their furosemide for 2 weeks, and their dry weight maintained with ultrafiltration on dialysis alone.

After 2 weeks, to establish whether there is any diurnal variation in the urine [Na] they will collect their urine in separate containers, appropriately labeled with the date and time, during the 24 hr period ending pre dialysis after the long interdialytic interval. These collections will also determine whether there is any diurnal variation in [Na], the individual urine [Na], as well as indicate the 24 hour urine volume and Na excretion off the furosemide.

All urine samples will be assayed for the concentration of Na, K, and creatinine, as well as their volume.

Thereafter, each patient will be given furosemide 120 mgm every morning for 2 weeks and they will collect the urine voided with each voiding (labeling with the time voided) in separate containers during the 24 hr period ending pre dialysis after the long interdialytic interval after 2 weeks . These collections will answer whether there is any diurnal variation in [Na] while on furosemide, as well as determine the 24 hour urine volume and Na excretion on the furosemide.

The results will determine whether those patients taking furosemide are indeed benefitting from it (Na, K and H2O excretion) and will help one to predict whether patients not taking furosemide, might indeed benefit from taking it.

At the conclusion of the 2-week period of furosemide therapy, the patient's primary nephrologist will determine the need for continuing this agent and if a decision is made to continue furosemide, the dose would be at the discretion of the nephrologist.

The primary outcome is the increase in urine volume and 24 hour sodium excretion in response to the furosemide therapy

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
51

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5B 1W8
        • Recruiting
        • St Michael's Hospital
        • Contact:
        • Principal Investigator:
          • Marc B Goldstein, MD

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:all patients taking Furosemide -

Exclusion Criteria:Patients not willing to give consent

-

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: Diagnostic
  • Allocation: Non-Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Withdrawal of Furosemide
The patient's Furosemide will be withdrawn
Drug: Withdrawal of furosemide
The patient (previously on furosemide) will have the furosemide stopped for 2 weeks. The interdialytic weight gain, BP and 24 hour urine volume and sodium excretion will be measured
Other Names:
  • Lasix
Experimental: Administration of furosemide
The patient will receive furosemide 120 mgms daily
Drug: furosemide administration
The patient will receive 120 mgm furosemide daily for 2 weeks and the interdialytic weight gain, BP and 24 hr urine volume and sodium excretion will be measured.
Other Names:
  • lasix

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
24 hour urine sodium and water excretion
Time Frame: 2 weeks
The patients 24 hour sodium and water excretion on and off the medication (which they had already been taking) will be compared for effectiveness of the drug. The hypothesis is that the urine sodium concentration off the drug, will predict the response and thus be of diagnostic value for other patients
2 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Interdialytic weight gain
Time Frame: 2 weeks
The interdialytic weight gain on and off the drug will be compared
2 weeks

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The patients' BP on and off the drug will be compared
Time Frame: 2 weeks
The patients pre dialysis BP as well as the 48 hr ambulatory BP (if the patient is willing) will be compared in both phases of the study.
2 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Unity Health Toronto

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Marc B Goldstein, MD, Unity Health Toronto

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2015

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2016

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 19, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 19, 2013

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 21, 2013

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 10, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 9, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MBG1234

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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