- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04546958
Nutritional Interventions in Peritoneal Dialysis Patients With Hypoalbuminemia
Clinical Implication of Nutritional Counseling and Whey Protein Supplements in Patients on Peritoneal Dialysis With Hypoalbuminemia
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Hypoalbuminemia is common and is strongly associated with an increased risk for mortality in patients with end-stage kidney disease (ESKD). Inadequate dietary protein intake is well-known cause of hypoalbuminemia in dialysis population. Protein loss into dialysate and increased catabolic state due to uremic milieu or inflammation worsened hypoalbuminemia, hence high protein diet is recommended in PD patients. Although there is an increased daily calorie intake from absorption of dialysate glucose concentration, hypoalbuminemia ensues in a substantial number of PD patients. There is concern that a disproportionately increasing calorie intake from dialysate glucose with no change in dietary protein intake causes weight gain which in turn worsens sarcopenic obesity in PD patients. Achieving adequate dietary protein intake should be the priority in the management of hypoalbuminemia. It is feasible for PD patients to increase dietary protein intake through protein supplements. Among nutritional supplements, whey protein has several positive effects on carbohydrate metabolism, muscle building, immune function, and human health in various areas of disease, supported by well-performed studies. There are limited data available regarding the effects of nutritional counseling and whey protein supplements on the nutritional, body compositional status and immune function of PD patients with hypoalbuminemia. The recommendations from K/DOQI clinical practice guidelines for the amount of daily protein intake is based on expert opinion and the optimal daily protein intake in PD patients is not known.
The aims of the study are to investigate the optimal dietary protein intake and to examine the effects of whey protein supplement on the change of nutritional, body composition and immune function in PD patients with hypoalbuminemia. Specifically, the investigators will compare the effect of nutritional counseling (1.2 g/kg protein intake) with that of nutritional counseling and whey protein supplement (1.5 g/kg protein intake) regarding the changes of nutritional, body composition parameters and immune function in PD patients. This is a quality improvement program to cope with the fact that the proportion of hypoalbuminemic PD patients sometimes does not meet the requirements set by Joint Commission of Taiwan, and to improve the nutritional status of PD patients in a feasible way of daily clinical practice.
The investigators are going to conduct a randomized, controlled trial with cross-over design. Subjects with ESKD undergoing maintenance PD for more than three months, adequate dialysis, and hypoalbuminemia will be recruited. Those with non-dietary cause of hypoalbuminemia including untreated fluid overload, uncorrected metabolic acidosis, having active infection or inflammation, hospitalization within the past 4 weeks, having gastrointestinal bleeding, those who cannot cooperate with the dietary record, those who have poor adherence to whey protein consumption, history of psychiatric disorders and having mental retardation will be excluded. Participants will receive nutritional counseling with whey protein supplement or nutritional counseling alone for 3-month period, separated by 3-month washout period. The study outcome measures are difference in change-from-baseline nutritional, body composition parameters and immune function between the two study periods.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Wan-Chuan Tsai, M.D., Ph.D.
- Phone Number: +886277281780
- Email: mkks618@gmail.com
Study Locations
-
-
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New Taipei City, Taiwan
- Far Eastern Memorial Hospital
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Aged greater than or equal to 20 years
- Having end-stage kidney disease and having undergone maintenance PD for more than three months
- Having adequate dialysis (weekly Kt/V greater than or equal to 1.7)
- Serum albumin levels lower than 4.0 g/dL, measured by bromocresol green assay
Exclusion Criteria:
- Untreated fluid overload
- Uncorrected metabolic acidosis
- Having active infection or inflammation
- Hospitalization within the past 4 weeks
- Having gastrointestinal bleeding
- those who cannot cooperate with the dietary record
- those who have poor adherence to whey protein consumption
- History of psychiatric disorders
- Having mental retardation
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Nutritional counseling arm
Nutritional counseling, targeting daily protein intake 1.2 g/kg Dietitian will provide one-to-one dietary education, 30 minutes duration, on a monthly basis
|
Nutritional counseling by dietitians for 3 months
|
Experimental: Nutritional counseling plus whey protein supplements arm
Nutritional counseling plus whey protein supplements, targeting daily protein intake 1.5 g/kg In addition to receiving nutritional counseling, participants are instructed to take an additional whey protein supplement at the dose of ~0.3 g/kg protein intake.
|
Nutritional counseling by dietitians for 3 months
Nutritional counseling and whey protein supplements for 3 months
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Concentrations of albumin (g/dL)
Time Frame: 3 months
|
Difference in change-from-baseline albumin (g/dL) between two intervention arms
|
3 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Concentrations of pre-albumin (g/dL)
Time Frame: 3 months
|
Difference in change-from-baseline pre-albumin (g/dL) between two intervention arms
|
3 months
|
Concentrations of C-reactive protein (mg/dL)
Time Frame: 3 months
|
Difference in change-from-baseline C-reactive protein (mg/dL) between two intervention arms
|
3 months
|
Concentrations of phosphate (mg/dL)
Time Frame: 3 months
|
Difference in change-from-baseline phosphate (mg/dL) between two intervention arms
|
3 months
|
Concentrations of blood urea nitrogen (mg/dL)
Time Frame: 3 months
|
Difference in change-from-baseline blood urea nitrogen (mg/dL) between two intervention arms
|
3 months
|
Concentrations of free indoxyl sulfate (mg/L)
Time Frame: 3 months
|
Difference in change-from-baseline free indoxyl sulfate (mg/L) between two intervention arms
|
3 months
|
Concentrations of free p-cresol sulfate (mg/L)
Time Frame: 3 months
|
Difference in change-from-baseline free p-cresol sulfate (mg/L) between two intervention arms
|
3 months
|
Absolute number (per μl blood) of CD4+ (cluster of differentiation 4) T cells
Time Frame: 3 months
|
Difference in change-from-baseline absolute number (per μl blood) of CD4+ T cells between two intervention arms
|
3 months
|
Absolute number (per μl blood) of CD8+ (cluster of differentiation 8) T cells
Time Frame: 3 months
|
Difference in change-from-baseline absolute number (per μl blood) of CD8+ T cells between two intervention arms
|
3 months
|
Absolute number (per μl blood) of monocytes
Time Frame: 3 months
|
Difference in change-from-baseline absolute number (per μl blood) of monocytes between two intervention arms
|
3 months
|
Percentage (%) of CD4+ (cluster of differentiation 4) T cells
Time Frame: 3 months
|
Difference in change-from-baseline percentage (%) of CD4+ T cells between two intervention arms
|
3 months
|
Percentage (%) of CD8+ (cluster of differentiation 8) T cells
Time Frame: 3 months
|
Difference in change-from-baseline percentage (%) of CD8+ T cells between two intervention arms
|
3 months
|
Percentage (%) of monocytes
Time Frame: 3 months
|
Difference in change-from-baseline percentage (%) of monocytes between two intervention arms
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3 months
|
Lean tissue mass (kg)
Time Frame: 3 months
|
Difference in change-from-baseline lean tissue mass (kg) between two intervention arms
|
3 months
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Fat tissue mass (kg)
Time Frame: 3 months
|
Difference in change-from-baseline fat tissue index (kg) between two intervention arms
|
3 months
|
Lean tissue index (kg/m2)
Time Frame: 3 months
|
Difference in change-from-baseline lean tissue index (kg/m2) between two intervention arms
|
3 months
|
Fat tissue index (kg/m2)
Time Frame: 3 months
|
Difference in change-from-baseline fat tissue index (kg/m2) between two intervention arms
|
3 months
|
Percentage (%) of body fat mass
Time Frame: 3 months
|
Difference in change-from-baseline percentage (%) of body fat mass between two intervention arms
|
3 months
|
Percentage (%) of excess body fat
Time Frame: 3 months
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Difference in change-from-baseline percentage (%) of excess body fat between two intervention arms.
Excess body fat is defined as fat percentage > 25 % for men or > 35 % for women
|
3 months
|
Percentage (%) of obesity
Time Frame: 3 months
|
Difference in change-from-baseline percentage (%) of obesity between two intervention arms.
Obesity is defined as body mass index > 24.
|
3 months
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Wan-Chuan Tsai, M.D., Ph.D., Far Eastern Memorial Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Kidney Diseases
- Urologic Diseases
- Disease Attributes
- Hematologic Diseases
- Renal Insufficiency
- Blood Protein Disorders
- Renal Insufficiency, Chronic
- Hypoproteinemia
- Chronic Disease
- Female Urogenital Diseases
- Female Urogenital Diseases and Pregnancy Complications
- Urogenital Diseases
- Male Urogenital Diseases
- Kidney Failure, Chronic
- Hypoalbuminemia
Other Study ID Numbers
- FEMH-IRB-109116-F
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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