NCT02140749

Brief Summary

Rationale: The dietary short-chain fructooligosaccharides have been shown to increase fecal bacterial mass and fermentation metabolites which might stimulate gut motility. Therefore, these dietary non-digestible carbohydrates might relieve functional constipation. Objective: Study the effect of short-chain fructooligosaccharides on functional constipation. Study design: A 16-week, randomized, placebo-controlled, double-blind cross-over trial with intervention periods of 4 weeks with a run-in period of 4 weeks and a wash-out period of 4 weeks. Study population: Human subjects with functional constipation according to ROMEIII criteria (total n=120; male and female; 18-75 yr). Intervention: Placebo and one out of 3 dosages of short-chain fructo-oligosaccharides, (Degree of Polymerisation of 3-5; 2, 4 and 8 g/day) for 4 weeks. scFOS will be given as oral chews. Main study parameters: The primary parameter is the number of complete bowel movements per day in subjects with functional constipation according to Rome III criteria. Secondary outcomes are Stool consistency (Bristol Stool Scale), Stool frequency, Severity of symptoms (Constipation Scoring System; CSS) and Quality of Life (Patient Assessment of Constipation Quality of Life; PAC-QoL).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2014

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2014

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

April 24, 2014

Completed
22 days until next milestone

First Posted

Study publicly available on registry

May 16, 2014

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2014

Completed
Last Updated

December 11, 2015

Status Verified

December 1, 2015

Enrollment Period

8 months

First QC Date

April 24, 2014

Last Update Submit

December 10, 2015

Conditions

Keywords

BifidobacteriaBristol Stool ScaleConstipationDietFructooligosacchardesMicrobiotaOligofructose

Outcome Measures

Primary Outcomes (1)

  • Stool frequency (Number of complete bowel movements per day)

    Change over week 4 and week 12

Secondary Outcomes (3)

  • Stool consistency (Bristol Stool Scale)

    Change over week 4 and week 12

  • Severity of symptoms (Constipation Scoring System; CSS)

    Change over week 4 and week 12

  • Quality of Life (Patient Assessment of Constipation Quality of Life; PAC-QoL)

    Change over week 4 and week 12

Study Arms (3)

sc-FOS 2g/day

EXPERIMENTAL

Placebo (4 weeks) Short-chain fructooligosaccharide 2 g/day (4 weeks)

Dietary Supplement: sc-FOS 2g/dayDietary Supplement: Placebo

sc-FOS 4g/day

EXPERIMENTAL

Placebo (4 weeks) Short-chain fructooligosaccharide 4 g/day (4 weeks)

Dietary Supplement: sc-FOS 4g/dayDietary Supplement: Placebo

sc-FOS 8g/day

EXPERIMENTAL

Placebo (4 weeks) Short-chain fructooligosaccharide 8 g/day (4 weeks)

Dietary Supplement: sc-FOS 8g/dayDietary Supplement: Placebo

Interventions

sc-FOS 2g/dayDIETARY_SUPPLEMENT

Chewing tablets containing Short-chain fructooligosaccharides 2g/day

Also known as: FOS, Oligofructose, scFOS, Short-chain fructo-oligosaccharide
sc-FOS 2g/day
sc-FOS 4g/dayDIETARY_SUPPLEMENT

Chewing tablets containing short-chain Fructooligosaccharides 4g/day

Also known as: FOS, Oligofructose, scFOS, Short-chain fructo-oligosaccharide
sc-FOS 4g/day
sc-FOS 8g/dayDIETARY_SUPPLEMENT

Chewing tablets containing short-chain Fructooligosaccharides 8g/day

Also known as: FOS, Oligofructose, scFOS, Short-chain fructo-oligosaccharide
sc-FOS 8g/day
PlaceboDIETARY_SUPPLEMENT

Chewing tablets without short-chain Fructooligosaccharides

sc-FOS 2g/daysc-FOS 4g/daysc-FOS 8g/day

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18-75 yr
  • Agree to study design (signed informed consent)
  • straining, lumpy or hard stool
  • sensation of incomplete evacuation
  • sensation of anorectal obstruction ⁄ blockage
  • use of manual manoeuvres
  • \<3 bowel movements per week
  • Availability of internet connection
  • BMI 20-30
  • Male or female
  • Willingness to abstain from functional ingredients and such as probiotics, prebiotics and foods containing high amounts of fermentable fibers and laxatives starting 1 month prior to start of the study as well as during the washout period.

You may not qualify if:

  • Currently participating in another clinical trial
  • Drug usage
  • Excessive alcohol usage (\>4 consumptions/day or \>20 consumptions/week)
  • Pregnancy or lactating
  • Underlying disease of the GI-tract or previous laparotomy, except cholecystectomy and appendectomy
  • Vegetarians

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

NIZO food research

Ede, Gelderland, 6718ZB, Netherlands

Location

Related Links

MeSH Terms

Conditions

Constipation

Interventions

oligofructose

Condition Hierarchy (Ancestors)

Signs and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Sandra ten Bruggencate, PhD

    NIZO Food Research

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 24, 2014

First Posted

May 16, 2014

Study Start

April 1, 2014

Primary Completion

December 1, 2014

Study Completion

December 1, 2014

Last Updated

December 11, 2015

Record last verified: 2015-12

Locations