Prebiotic fiber and exercise may ease inflammation in kidney patients
NCT ID NCT03689569
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether taking a prebiotic fiber (resistant starch) and doing moderate aerobic exercise for 16 weeks could reduce inflammation and improve blood vessel health, thinking, and mood in people with stage 3-4 chronic kidney disease. 68 patients were randomly assigned to receive the prebiotic or a placebo, with some also exercising. The goal was to see if these lifestyle changes could help manage the disease before dialysis is needed.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- resistant starch (a type of prebiotic fiber)
- What this could lead to
- If it works, this could point toward a simple, non-drug way to manage inflammation and slow kidney disease progression.
- What could go wrong
- This is a small, early-stage study with only 68 participants. Results may not apply to everyone, and the benefits of prebiotics and exercise may be modest or hard to separate from other factors.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
68 people
The number who actually took part.
- Started
-
Sep 2018
- Finished
-
May 2021
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
30 to 75 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * stage 3-4 of CKD (GFR 15-59 ml/min/1.73m2), * ages of 30-75 years old, * Must be capable of complying with and following the study protocol(diet and exercise) * Must be capable of independently giving informed consent Exclusion Criteria: * kidney transplant * currently in a structured exercise program * on antibiotic therapy within the last month * On a probiotic or prebiotic supplement within the last month * a GI disorder that prohibits the use of resistant starch (ie. high-amylose corn starch, which resists digestion * HIV positive * gastric by-pass surgery * clostridium difficile * marijuana user * lupus * rheumatoid arthritis * Hepatitis C * Post-traumatic stress disorder * deep vein thrombosis * pancreatitis
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Springfield College
Springfield, Massachusetts, 01109, United States
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