Dietary Protein Requirements in Hemodialysis Patients
July 16, 2014 updated by: Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Dietary Protein Intake and Its Effect on Nitrogen Balance in Maintenance Hemodialysis (MHD) Patients
The primary purpose of this study is to assess dietary protein requirements in clinically stable maintenance hemodialysis (MHD) patients.
It is hypothesized that the average dietary protein intake (DPI) that will maintain nitrogen balance is 1.00 g protein/kg/day, but that a safe intake that maintains balance in almost all MHD patients is about 1.25g protein/kg/day.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
A high proportion of maintenance hemodialysis (MHD) patients have protein-energy malnutrition (PEM) which is a powerful predictor of high morbidity and mortality. Although inflammation may contribute to PEM, low dietary protein intake (DPI) is often a contributing factor. The usual DPI of MHD patients in about 1.0 g protein/kg/day, whereas expert groups recommend = 1.20 g protein/kg/day. However, these recommendations are based upon few studies, often of insufficient duration, that were usually carried out with obsolete types of dialysis therapy.
We will examine the response to different levels of dietary protein intake (0.6-1.3 g protein/kg/day) under classical balance techniques with carefully controlled dietary intakes, living, conditions, and collection of nitrogen outputs and carefully measured nitrogen intakes and outputs.
Study Type
Interventional
Enrollment (Actual)
13
Phase
- Not Applicable
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
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California
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Torrance, California, United States, 90509
- Harbor-UCLA Medical Center
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-
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
25 years to 65 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Ages from 30 years through 65 years
- Both men and women and all ethnic and racial groups
- Treatment with MHD for 6 months or greater
- Hemoglobin of at least 11 g/dL
- Neurological examination indicating no severe neuropathy
- A negative test for peripheral arterial occlusive disease
Exclusion Criteria:
- Obesity: body weight greater than >115% of standard
- History of active cancer other than basal cell carcinoma
- Symptomatic severe ischemic heart disease, uncontrolled serious dysrhythmias, uncontrolled congestive heart failure, poorly controlled hypertension, severe musculoskeletal disease, arthritis or amputations of the lower extremities
- Insulin dependent or insulin independent diabetes mellitus
- Severe lung or liver disease, uncontrolled asthma, active vasculitis. Severe chronic infection or any other acute or chronic inflammatory or catabolic illnesses
- Psychosis, inability to give informed consent, evidence that patient will not comply with study protocol
- Alcohol or other recreational drug abuse
- Patients who received L-carnitine or anabolic hormones within the previous 6 months
- Pregnancy
- Patients who are physically and/or psychologically incapable of undergoing the protocol
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: Supportive Care
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: Dietary Protein Intake
One treatment Arm; Protein Diet: All patients will be fed the following five diets, in random order, each for 17-19 days: 0.6 g protein/kg/day, 0.8 g protein/kg/day, 1.0 g protein/kg/day, 1.15 g protein/kg/day, 1.3 g protein/kg/day.
|
Protein diets fed for 17-19 days to each patient in random order: 0.6 g protein/kg/day, 0.8 g protein/kg/day, 1.0 g protein/kg/day, 1.15 g protein/kg/day, 1.3 g protein/kg/day.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Nitrogen Balance
Time Frame: One year
|
One year
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Joel D Kopple, MD, Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
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.
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
January 1, 2004
Primary Completion (Actual)
January 1, 2008
Study Completion (Actual)
January 1, 2008
Study Registration Dates
First Submitted
July 16, 2014
First Submitted That Met QC Criteria
July 16, 2014
First Posted (Estimate)
July 18, 2014
Study Record Updates
Last Update Posted (Estimate)
July 18, 2014
Last Update Submitted That Met QC Criteria
July 16, 2014
Last Verified
July 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 10602 (Other Identifier: Fred Hutch/University of Washington Cancer Consortium)
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.