Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT01861964 · ClinicalTrials.gov registry record · Phase 2

Effects of Xylooligosarcharide on Composition of the Human Colonic Microflora

A Phase 2 study, sponsored by University of California, Los Angeles.

Completed
Registry status
Phase 2
Development phase
30
Enrollment target

NCT01861964: Completed Phase 2 study, sponsored by University of California, Los Angeles.

NCT01861964 is a Phase 2 study that has completed, run by University of California, Los Angeles. The registered enrollment target is 30 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (77% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT01861964, a Phase 2 study, has completed, sponsored by University of California, Los Angeles.

COMPLETED
Registry status
Phase 2
Development phase
30 participants
Enrollment target

Study Summary

Human and animal studies demonstrate that xylooligosaccharides (XOS) are a highly efficacious prebiotic ingredient that delivers benefits at a minimum level of 1.4 g/day (d), which is much lower than levels required by fructooligosaccharides (FOS, 5 g/d) or galactooligosaccharides (GOS, 8 g/d). XOS promotes gastrointestinal regularity and relieves diarrhea and constipation at 0.7 g/d and 1.4 g/d, respectively. Xylooligosaccharides may also reduce blood cholesterol and may improve glycemic control, although more data from clinical trials are needed to confirm preliminary findings.

Primary Outcome

After a 2 weeks of run-in, 30 healthy volunteers were randomly assigned to take 1.4 grams/day of XOS, or 2.8 grams/day or placebo for 8 weeks. The bifidobarteria counts was assessed at screening, baseline, 4, 8 weeks on supplementation of XOS and after 2 week cessation of XOS.

Interventions

  • DIETARY_SUPPLEMENT Placebo (Maltodextrin)
  • DIETARY_SUPPLEMENT Xylooligosarcharide 1.4g
  • DIETARY_SUPPLEMENT Xylooligosarcharide 2.8g

Trial Details

FieldValue
Enrollment Target 30 participants
Start Date 2012-02
Est. Completion 2013-01
Phase Phase 2

What the finished NCT01861964 record still lists

NCT01861964 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 30 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (77% lower).

The record links to 0 conditions, and to 3 interventions - of which Placebo (Maltodextrin) is the first listed.

NCT01861964 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01861964 about?

NCT01861964 is a clinical study titled "Effects of Xylooligosarcharide on Composition of the Human Colonic Microflora". Human and animal studies demonstrate that xylooligosaccharides (XOS) are a highly efficacious prebiotic ingredient that delivers benefits at a minimum level of 1.4 g/day (d), which is much lower than levels required by fructooligosaccharides (FOS, 5 g/d) or galactooligosaccharides (GOS, 8 g/d). XOS ...

What is the current status of trial NCT01861964?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 30 participants. The study started on 2012-02. Estimated completion is 2013-01.

What interventions are being tested in trial NCT01861964?

The interventions under investigation include: Placebo (Maltodextrin) (DIETARY_SUPPLEMENT), Xylooligosarcharide 1.4g (DIETARY_SUPPLEMENT), Xylooligosarcharide 2.8g (DIETARY_SUPPLEMENT).

Who is sponsoring clinical trial NCT01861964?

This trial is sponsored by University of California, Los Angeles, which has 897 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01861964's enrollment target sits among peer trials

30 1582nd of 2000 higher than 332 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT00977977 · 30 participants · Phase 2

    Rituximab Plus Cyclosporine in Idiopathic Membranous Nephropathy

  • NCT01459107 · 30 participants · Phase 2

    Human Upper Extremity Allotransplantation

  • NCT01666080 · 30 participants · NA

    Second or Greater Allogeneic Hematopoietic Stem Cell Transplant Using Reduced Intensity Conditioning (RIC)

  • NCT01720836 · 30 participants · Phase 1

    Study of the Immune Response of MUC1 (Mucin1) Peptide Vaccine for Non-small Cell Lung Cancer

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT01861964, the US trial registry maintained by the National Library of Medicine. NCT01861964 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.