Clinical trial Recruiting at 1 site Interventional Ages 18 to 75

Effects of inulin on gut health in patients with chronic kidney disease

Official title: Investigating the Effect of Inulin on Gut Microbiota and Gut Barrier in Advanced Chronic Kidney Disease - a Randomised, Placebo-controlled Trial

Run by Charite University, Berlin, Germany · NCT05071131 · Data updated 2026-11-12

This study tests whether taking inulin for 35 days can improve gut health in people with chronic kidney disease who are on hemodialysis.

More Chronic Kidney Disease 5D trials

Quick facts

Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment40 (estimated)
SponsorCharite University, Berlin, Germany
Academic / other
Locations1 site (Berlin)
StatusRecruiting
StartedFebruary 1, 2022
Main results expectedFebruary 1, 2026
Study endsFebruary 1, 2027
Registry record updatedJune 25, 2024
Trial IDNCT05071131 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are men and women aged 18-75 with end-stage kidney disease on regular hemodialysis.

Probably not a fit

Patients with malignant diseases, recent hospitalizations, or those on antibiotics may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the impact of a 35-day inulin supplementation on the gut microbiome and gut barrier function in patients with chronic kidney disease undergoing hemodialysis. It aims to address the insufficient fiber intake in this population, which may negatively affect their gut health. Participants will receive either inulin or a placebo, and various health parameters will be monitored throughout the study. The goal is to understand how inulin can influence bacterial metabolites and immune cell states in these patients.

Why it matters

Potential benefit: If successful, this study could improve gut health and overall well-being in patients with chronic kidney disease.

How similar studies have gone: Other studies have shown promising results with fiber supplementation in similar patient populations, suggesting potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Men and women in a ratio of 1:1
* Age 18-75 years
* Body mass index 25.0 - 39.9 kg/m\^2
* End-stage kidney disease, which has been treated regularly with hemodialysis for at least 3 months

Exclusion Criteria:

* Malignant diseases
* Recent or current hospitalization
* Postoperative phase
* Acute infections
* Malnutrition
* Antibiotic treatment within the last 4 weeks
* Regular intake of probiotics and/or prebiotics
* Change of body weight of more than 2 kg in the month prior to study entry
* Known drug or alcohol abuse

Changes applied in July 2022 according to amendment no. 1:

* Two inclusion criteria were changed to improve recruitment

  * Age range was changed from 18-70 to 18-75 years
  * BMI range was changed from 18.5 - 34.9 to 25.0 - 39.9 kg/m\^2
* The intervention scheme was adapted to increase patient adherence

  * A 7-day adaption phase with half of the dose (15 grams per day) at the start of the intervention was introduced, changing treatment duration from 28 to 35 days

Changes applied in January 2024 according to amendment no. 2:

* One inclusion criteria was changed to improve recruitment

  * BMI range was changed from 25 - 39,9 to 18,5 - 39,9 kg/m²
* Last visit was brought foward by 4 weeks.

Where it's running

  • Experimental and Clinical Research Center
    Berlin, Germany
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.