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CompletedNCT02376270Updated Jul 15, 2016

Pectin, Aging and Intestinal Barrier Function

A Phase 4 interventional study of Pectin and Maltodextrin in Healthy Young Adults and Healthy Elderly, sponsored by Maastricht University Medical Center. Completed at 1 site in Netherlands. Open to participants aged 18 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-07-15.

Sponsored by Maastricht University Medical Center · Phase 4, Interventional, and Prevention

Phase
Phase 4
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The population is aging worldwide, which requires more attention to health needs and leads to a dramatic increase in health care costs. Prevention or delay of onset of disorders associated with aging is needed. Dietary intake of pectin, a dietary fiber, may have beneficial effects on gut health parameters, i.e. intestinal barrier function, immune function and microbial composition. As intestinal barrier function may be compromised in the elderly we will investigate whether the effects of pectin on selected parameters of gut health differ between young vs. older individuals. The primary objective of this study is to investigate the effects of aging on pectin-induced changes in intestinal permeability. Furthermore, this study has seven secondary objectives. This study conforms to a randomized, double-blind and placebo-controlled design including two parallel arms.The study population consists of Healthy human volunteers (male and female), 18-40 and 65-75 years old, BMI 20-30 kg/m2. One group will receive 7.5 grams of pectin supplements twice daily for four weeks. A second group will receive 7.5 grams of placebo supplements twice daily for four weeks. Before and after the supplementation period, several measurements will take place. The main study parameter is the change in urinary sugar excretion ratio before and after the intervention period.

02

Conditions studied

  • Healthy Young Adults
  • Healthy Elderly
03

In context

Lead sponsor

Maastricht University Medical Center is the lead sponsor of 835 studies on the registry; 121 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Based on medical history and previous self-admitted examination, no gastrointestinal complaints can be defined.
  • Age between 18 - 40 years and 65 - 75 years.
  • Body Mass Index (BMI) between 20 and 30 kg/m2. Normal BMI has been chosen because obesity is associated with an altered microbial composition and increased intestinal permeability.

Exclusion criteria

Exclusion Criteria:

  • History of severe cardiovascular, respiratory, urogenital, gastrointestinal/ hepatic, hematological/immunologic, HEENT (head, ears, eyes, nose, throat), dermatological/connective tissue, musculoskeletal, metabolic/nutritional, endocrine, neurological diseases, allergy, major surgery and/or laboratory assessments which might limit participation in or completion of the study protocol.
  • Use of proton-pump inhibitors, nonsteroidal anti-inflammatory drugs and/or vitamin supplementation, within 14 days prior to testing. Use of other medication will be reviewed by a medical doctor, who will decide on in- or exclusion based on the drug(s) used.
  • Administration of probiotic or prebiotic supplements, investigational drugs or participation in any scientific intervention study which may interfere with this study (to be decided by the principle investigator), in the 90 days prior to the study
  • Use of antibiotics in the 90 days prior to the study.
  • Abdominal surgery interfering with gastrointestinal function, upon judgment of the principle investigator).
  • Pregnancy, lactation.
  • Excessive alcohol consumption (>20 alcoholic consumptions per week).
  • Smoking.
  • Blood donation within 3 months before or after the study period.
  • Self-admitted human immunodeficiency virus-positive state.
  • History of side effects towards intake of prebiotic supplements.
05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
100 participants (actual)

Study arms

  • Experimental
    Pectin

    This group will receive 7.5 grams of pectin supplements twice daily for four weeks.

    Dietary Supplement: Pectin

  • Placebo comparator
    Maltodextrin

    This group group will receive 7.5 grams of maltodextrin supplements twice daily for four weeks.

    Dietary Supplement: Maltodextrin

Interventions

  • Dietary supplementPectin

    This group will receive 7.5 grams of pectin supplements twice daily for four weeks.

  • Dietary supplementMaltodextrin

    This group will receive 7.5 grams of maltodextrin supplements twice daily for four weeks.

06

What researchers measure

Primary outcomes

  1. Sugar recovery in urine, as indicator of intestinal permeability

    Time frame: Change from Baseline to after 4 weeks of intervention

Secondary outcomes

  1. Tight junction structure and proteins in colonic biopsies, as indicator of intestinal barrier function

    Time frame: After 4 weeks of intervention

  2. Ussing chamber experiments in colonic biopsies, as indicator of intestinal barrier function

    Time frame: After 4 weeks of intervention

  3. Histology in colonic biopsies, as indicator of intestinal barrier function

    Time frame: After 4 weeks of intervention

  4. MiR-29a in colonic biopsies, as indicator of intestinal barrier function

    Time frame: After 4 weeks of intervention

  5. Zonulin in blood plasma, as indicator of intestinal barrier function

    Time frame: Change from Baseline to after 4 weeks of intervention

  6. Immune infiltration cells in colonic biopsies, as indicator of immune system performance

    Time frame: After 4 weeks of intervention

  7. T-cells and Natural Killer cells in blood plasma, as indicator of immune system performance

    Time frame: Change from Baseline to after 4 weeks of intervention

  8. Cytokines Interleukin-10 and Interleukin-12 in blood plasma, as indicator of immune system performance

    Time frame: Change from Baseline to after 4 weeks of intervention

  9. C-reactive protein in blood serum, as indicator of immune system performance

    Time frame: Change from Baseline to after 4 weeks of intervention

  10. Secretory Immunoglobulin A in blood serum, as indicator of immune system performance

    Time frame: Change from Baseline to after 4 weeks of intervention

  11. Microbial composition in luminal content and feces

    Time frame: Change from Baseline to after 4 weeks of intervention

  12. Short-chain fatty acids in luminal content and feces, as indicator of microbial function

    Time frame: Change from Baseline to after 4 weeks of intervention

  13. Volatile organic compounds in exhaled air, as indicator for metabolite production

    Time frame: Change from Baseline to after 4 weeks of intervention

  14. Symptom diary questionnaire, as indicator of digestive parameters

    Time frame: Change from three days prior to the supplementation period to three days during the last week of the supplementation period

  15. Stool frequency and consistency questionnaire, as indicator of digestive parameters

    Time frame: Change from Baseline to after 4 weeks of intervention

  16. Gastrointestinal Symptom Rating Scale questionnaire, as indicator of digestive parameters

    Time frame: Change from Baseline to after 4 weeks of intervention

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Study locations

1 site
  • Maastricht University Medical Center
    Maastricht, Limburg 6229 HX, Netherlands
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 15, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02376270
Lead sponsor
Maastricht University Medical Center
Responsible party
Sponsor
First posted
Mar 3, 2015
Start date
Mar 2015
Primary completion
May 2016
Completion
May 2016
Last update
Jul 15, 2016

Study contacts

A.A.M. Masclee, Professor
principal investigator · Department of Internal Medicine, Division of Gastroenterology-Hepatology
View the source record on ClinicalTrials.gov ↗

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