Dietary Potassium Liberalization in Pre-Dialysis Patients
Recruiting now NCT05090865
Run by University of Manitoba · for 18 and older · All sexes
What this study is about
The study will look at the impact of the potassium content in fruits and vegetables, on serum potassium concentrations in people with Chronic Kidney Disease (CKD) using a randomized crossover design. Participants will receive home delivery of fruit and vegetables with either higher or lower potassium content in a random order. Clinical chemistry markers from blood and urine samples, blood pressure, physical functioning and health related quality of life will be assessed throughout the duration of the trial. This study will also measure their physical functioning, using a chair stand test. The results of this study could change the dietary recommendations for people with CKD related to potassium.
Who can join (things the study team will check)
✅ You may be able to join if…
- Male or female, aged 18 years or above
- Participants who have an estimated glomerular filtration rate between 15 and 45 ml/min/1.73m2
- Serum potassium concentration between 4.5 and 5.5 milliequivalent (mEq)/L
- Hemoglobin A1c ≤ 11%
- Systolic and diastolic blood pressure \<160/100 mmHg
- Are registered in the multidisciplinary nephrology clinic in Winnipeg
- Able to communicate in English and provide written informed consent
🚫 You may not be able to join if…
- Serum potassium concentration \> 5.6 mEq/L, anuria, dialysis, or acute kidney injury failure in the 6 months prior to screening
- Chronic obstructive pulmonary disease that requires the participant to be on oxygen
- New York Heart Association Class 3-4 Heart symptoms or heart, liver or renal transplant
- A myocardial infarction or stroke within the last 6 months
- Unable to consume study treatments or control, such as swallowing or gastro-intestinal issues
- Currently on potassium binding therapy
- In the opinion of the investigator any medical condition, uncontrolled systemic disease or concurrent illness that would decrease the study compliance or jeopardize the safety of the participant
- Female participant who is pregnant or lactating
Where this trial is running
- Seven Oaks General Hospital Chronic Disease Innovation Centre, Winnipeg, Manitoba, Canada
- Health Sciences Centre, Winnipeg, Manitoba, Canada
Who to contact
Dylan Mackay, PhD · 2042723119 · dylan.mackay@umanitoba.ca
It's completely normal to call and ask questions before deciding anything. Mention the study ID: NCT05090865.
Verify everything on the official ClinicalTrials.gov record. Page updated July 2026.