Reduction of Metabolic Acidosis in Patients With Chronic Kidney Disease in Stage 4 and 5

NCT ID: NCT05970094

Last Updated: 2023-12-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-06

Study Completion Date

2023-11-20

Brief Summary

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The goal of this clinical trial is to learn about and test the effect of an acid/base diet, in chronic kidney patients with CKD stage 4 and 5 in an interventional study with a historical control.

The hypothesize is, that an acid/base diet will reduce the degree of acidosis and the need for oral bicarbonate supplements.

Detailed Description

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Observational studies indicate that diets with a low "potential renal acid load (PRAL)" is associated with a lower serum-bicarbonate value. The aim is to investigate this association with an interventional studydesign.

Participants will be asked to follow a restricted diet with a low "PRAL" during a 6 week trial divided in three periodes: two week free living control, two week intervention and a two week free living follow-up.

The PRAL calculation tool will be used to create a diet low in acid, based on this the patients will receive individual diet plans. The diet will comply with national treshold guidelines for potassium and protein, this is due to the high risk of hyperkalemia in patients with chronic kidney disease. The patients will be asked to document their food and drink intake by taking pictures of their plates and cups before and after a meal, over a 24 hour period.

Conditions

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Kidney Diseases Metabolic Acidosis Renal Insufficiency CKD Pre-dialysis

Keywords

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Potential renal acid load PRAL Study design Diet Humans Elderly Bicarbonate/blood Muscle strength Hand strength Chair stand test Calorimetry, indirect Bone mineralization Carbon dioxide/blood Phosphor/urine Potassium/urine Urea/blood Urea/urine

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Crossover design: 1 arm consisting of three consecutive periods of two weeks (control, intervention and follow up).
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Low PRAL diet

Crossover design: 1 arm consisting of three consecutive periods of two weeks (control, intervention and follow up).

Group Type EXPERIMENTAL

Low PRAL

Intervention Type OTHER

Two weeks on a low PRAL diet compared to 2 week free living

Interventions

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Low PRAL

Two weeks on a low PRAL diet compared to 2 week free living

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Chronic acidosis (plasma-bicarbonat under 22 mmol/l at multiple measures within the last 12 months).
* Diagnosed with non-dialysis needed chronic kidney disease in stage 4 and 5 (eGFR below 30 ml/min/1,73 m2)
* Of legal age and over 18 of years
* Understand danish and understand the written material
* Able to cooperate about the diet
* Able to take pictures with their phone or willing to learn

Exclusion Criteria

* Vegan and vegetarian with very low intake of animal protein (below 25 g/day)
* Pregnant or breast feeding
* Patients with short bowel syndrome, brickre's bladder, pancreatitis or any other known malabsorption problem
* Potassium above 5 mmol/l
* Ongoing infection
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Nordsjaellands Hospital

OTHER

Sponsor Role collaborator

University of Copenhagen

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jens Rikardt Andersen, MD, MPA

Role: STUDY_DIRECTOR

University of Copenhagen

Locations

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Nordshjaellands Hospital

Hillerød, , Denmark

Site Status

Countries

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Denmark

Other Identifiers

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H-21069570

Identifier Type: -

Identifier Source: org_study_id