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AXOS and Microbial Metabolites in CKD

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02141815
Recruitment Status : Completed
First Posted : May 19, 2014
Last Update Posted : April 27, 2020
Information provided by (Responsible Party):
Universitaire Ziekenhuizen Leuven

Tracking Information
First Submitted Date  ICMJE May 15, 2014
First Posted Date  ICMJE May 19, 2014
Last Update Posted Date April 27, 2020
Study Start Date  ICMJE May 2014
Actual Primary Completion Date May 2016   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: May 15, 2014)
Serum levels of p-cresol and indole derivatives [ Time Frame: After 4 weeks of intervention ]
Original Primary Outcome Measures  ICMJE Same as current
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: May 15, 2014)
  • Urinary excretion rates of p-cresol and indole derivatives [ Time Frame: After 4 weeks of intervention ]
  • Insuline resistance [ Time Frame: After 4 weeks of intervention ]
    Insuline resistance, measured by HOMA index
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title  ICMJE AXOS and Microbial Metabolites in CKD
Official Title  ICMJE The Effect of Arabinoxylan-oligosaccharides (AXOS) on Intestinal Generation of Microbial Metabolites in Chronic Kidney Disease
Brief Summary Chronic kidney disease is associated with the accumulation of various metabolites, i.e., uremic retention solutes. Evidence is mounting that the colonic microbiota contributes substantially to these uremic retention solutes. Indoxyl sulfate and p-cresyl sulfate are among the most extensively studied gut microbial metabolites, and are associated with cardiovascular disease, overall mortality and chronic kidney disease progression. The most important regulator of colonic bacterial metabolism is nutrient availability and especially the ratio of available fermentable carbohydrate to nitrogen, which can be modified by intake of so-called prebiotics (non-digestible food ingredients). Arabinoxylan oligosaccharides (AXOS) are a recently developed group of prebiotics, and already demonstrated a decreasing effect on intestinal generation of p-cresol in healthy individuals. Whether prebiotics in general, and AXOS more specifically, can influence intestinal generation of microbial metabolites in predialysis patients has not been studied to date. An interventional study with AXOS will therefore be initiated to test the hypothesis that AXOS can decrease intestinal generation and serum concentrations of microbial metabolites in patients with CKD not yet on dialysis.
Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Condition  ICMJE Chronic Kidney Disease
Intervention  ICMJE
  • Dietary Supplement: Arabinoxylan-oligosaccharides
    Other Name: AXOS
  • Dietary Supplement: Maltodextrine
Study Arms  ICMJE
  • Experimental: Arabinoxylan-oligosaccharides
    Arabinoxylan-oligosaccharides 10g BID
    Intervention: Dietary Supplement: Arabinoxylan-oligosaccharides
  • Placebo Comparator: Maltodextrine
    Maltodextrine BID
    Intervention: Dietary Supplement: Maltodextrine
Publications * Poesen R, Evenepoel P, de Loor H, Delcour JA, Courtin CM, Kuypers D, Augustijns P, Verbeke K, Meijers B. The Influence of Prebiotic Arabinoxylan Oligosaccharides on Microbiota Derived Uremic Retention Solutes in Patients with Chronic Kidney Disease: A Randomized Controlled Trial. PLoS One. 2016 Apr 21;11(4):e0153893. doi: 10.1371/journal.pone.0153893. eCollection 2016.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: May 15, 2014)
Original Estimated Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE May 2016
Actual Primary Completion Date May 2016   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Age ≥ 18 and ≤ 85 years
  • Chronic kidney disease stage 3b-4, i.e., with estimated glomerular filtration rate (CKD-epi) between 45 - 15 ml/min/m² 29
  • Written informed consent

Exclusion Criteria:

  • History of organic gastro-intestinal disease (e.g., inflammatory bowel disease, malignancy)
  • History of colonic surgery
  • Recipient of a renal or other solid organ transplant
  • Use of pre-/pro-/syn- or antibiotics in preceding 4 weeks
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years to 85 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Belgium
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT02141815
Other Study ID Numbers  ICMJE S55578
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Universitaire Ziekenhuizen Leuven
Study Sponsor  ICMJE Universitaire Ziekenhuizen Leuven
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Principal Investigator: Ruben Poesen, MD Universitaire Ziekenhuizen Leuven
Principal Investigator: Björn Meijers, MD, PhD Universitaire Ziekenhuizen Leuven
PRS Account Universitaire Ziekenhuizen Leuven
Verification Date April 2020

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP