search
Back to results

Effect of Oat Bran on Bowel Function and Appetite (OATGUT)

Primary Purpose

Gastrointestinal Disorder, Functional

Status
Withdrawn
Phase
Not Applicable
Locations
Study Type
Interventional
Intervention
Oat bran (Oatwell 28)
Maltodextrin
Sponsored by
DSM Nutritional Products, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Gastrointestinal Disorder, Functional

Eligibility Criteria

18 Years - 60 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Healthy male or female between the ages of 18-60 years
  • Subject has a body mass index of ≥18.5 and ≤30 kg/m2 at screening visit.
  • Subject is willing to stick to their normal habitual diet excluding the consumption of any unusual high energy-rich or fat-rich meals or prolonged fasting, etc. through the study period.
  • Subject is willing to maintain their habitual physical activity patterns throughout the study period.
  • Subject has been weight stable within the last 6 months.
  • Subject has no health conditions that would prevent him or her from fulfilling the study requirements as judged by the investigator on the basis of medical history and routine laboratory test results.
  • Low fiber consumer (≤14 g per day)
  • Subject is willing to follow study procedures and dietary restrictions (ex: stick to habitual diet, refrain from consuming alcohol 24 hours prior to test days).

Exclusion Criteria:

  • History of a gastrointestinal disorder
  • Lactose intolerant
  • High fiber consumer (≥15 g per day)
  • Use of pre-and probiotics in the past 90 days
  • High protein consumer (i.e. vegetarians or those who follow diets high in protein such as paleo)
  • History of psychological illness or conditions that may interfere with subjects ability to understand study directions
  • Use of antibiotics or signs of active systemic infection in the last 6 months.
  • Subjects who are on hypo/hypercaloric diet aiming for weight loss or weight gain
  • History or presence of cancer in the prior 2 years (except for non-melanoma skin cancer).
  • Currently pregnant, lactating or planning to be pregnant during the study period
  • Regular use of dietary supplements (ex: fish oil, riboflavin, etc.), 90 days prior to study inclusion
  • Exposure to any non-registered drug product within the last 30 days prior to screening visit
  • History of or strong potential for alcohol or substance abuse (within 12 months of screening visit). Alcohol abuse is defined as >60g (men)/40g (women) pure alcohol per day (1.5 L/ 1 l beer resp. 0.75l/0.5l wine).
  • Allergy or sensitivity to oat bran or any meals or snacks provided
  • Current smoker or use of tobacco products in the past 90 days
  • Concurrent or recent participation (30 days) in a dietary intervention trial
  • Anything in the judgment of the investigator would interfere with the subject's ability to comply with the study (protocol), which might confound the interpretation of the study results, or put the subject at undue risk.

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm Type

    Active Comparator

    Placebo Comparator

    Arm Label

    Oat bran (Oatwell 28)

    Maltodextrin

    Arm Description

    A beverage containing 11 gram (3 gram of oat beta-glucan) of Oat bran (Oatwell 28) will be consumed before breakfast

    A beverage containing 11 gram of maltodextrin will be consumed before breakfast.

    Outcomes

    Primary Outcome Measures

    Whole gut transit time
    Whole gut transit time is the time required for the passage of 80% of radio-opaque markers (ROM) which are detected by x-ray in the fecal samples collected over the next 5 days after swallowing the ROM.

    Secondary Outcome Measures

    Whole gut transit time
    Whole gut transit time is the time required for the passage of 80% of radio-opaque markers (ROM) which are detected by x-ray in the fecal samples collected over the next 5 days after swallowing the ROM.
    Stool frequency
    using a bowel movement diary
    Fecal output
    Fecal out is the weight of the fecal samples collected over the 5 days preceding the 2 week and 4 week time point
    Percent fecal moisture
    Fecal moisture is determined by freeze drying fecal samples and calculating the percent moisture in the fecal sample
    Bristol Stool Score
    using Bristol Stool Chart
    Fecal pH
    Subjective measures of bowel comfort
    Gastrointestinal Quality of life questionnaires (GIQLI)
    Gut microbiota
    Using 16S ribosomal RNA sequencing techniques
    Fecal short chain fatty acids
    Using gas chromatography
    Fecal total bile acids
    Fecal enzymes
    fecal beta-glucoronidase
    Fecal ammonia
    Intestinal gas production
    using breath hydrogen production
    Appetite
    Appetite will be measured via visual analogue score (VAS)
    Ad libitum energy intake
    Ad libitum energy intake is measured by serving the subject an excess of food

    Full Information

    First Posted
    December 21, 2016
    Last Updated
    August 9, 2018
    Sponsor
    DSM Nutritional Products, Inc.
    search

    1. Study Identification

    Unique Protocol Identification Number
    NCT03014141
    Brief Title
    Effect of Oat Bran on Bowel Function and Appetite
    Acronym
    OATGUT
    Official Title
    The Effect of Oat Bran on Bowel Function and Appetite. A Randomized, Double-blind, Placebo-controlled, Cross-over Intervention Study in Healthy Humans.
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    August 2018
    Overall Recruitment Status
    Withdrawn
    Why Stopped
    Study supply issues
    Study Start Date
    June 2018 (Anticipated)
    Primary Completion Date
    December 2018 (Anticipated)
    Study Completion Date
    March 2019 (Anticipated)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    DSM Nutritional Products, Inc.

    4. Oversight

    Studies a U.S. FDA-regulated Drug Product
    No
    Studies a U.S. FDA-regulated Device Product
    No
    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The consumption of oat bran fiber also has a significant bulking effect in humans. However, besides fecal bulk, dietary fiber can promote gut health in other ways. Therefore, the purpose of this study is to investigate the effects of oat bran (rich in oat beta-glucan) supplementation on bowel function and appetite.
    Detailed Description
    The study is a randomized, double-blind, placebo-controlled crossover study it involves a total of 8 visits with a 14 day run-in period for total study duration of 84 days. A washout period of 2 weeks will occur in between the 2, 28 day treatment periods. The effects of an oat bran beverage for breakfast on bowel function will be tested after 2 week and 4 weeks of intake.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Gastrointestinal Disorder, Functional

    7. Study Design

    Primary Purpose
    Basic Science
    Study Phase
    Not Applicable
    Interventional Study Model
    Crossover Assignment
    Masking
    ParticipantCare ProviderInvestigatorOutcomes Assessor
    Allocation
    Randomized
    Enrollment
    0 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Oat bran (Oatwell 28)
    Arm Type
    Active Comparator
    Arm Description
    A beverage containing 11 gram (3 gram of oat beta-glucan) of Oat bran (Oatwell 28) will be consumed before breakfast
    Arm Title
    Maltodextrin
    Arm Type
    Placebo Comparator
    Arm Description
    A beverage containing 11 gram of maltodextrin will be consumed before breakfast.
    Intervention Type
    Other
    Intervention Name(s)
    Oat bran (Oatwell 28)
    Other Intervention Name(s)
    Oat bran oat beta-glucan
    Intervention Description
    11 g oat bran containing 3.1 gram oat beta-glucan
    Intervention Type
    Other
    Intervention Name(s)
    Maltodextrin
    Intervention Description
    11 g of Maltodextrin
    Primary Outcome Measure Information:
    Title
    Whole gut transit time
    Description
    Whole gut transit time is the time required for the passage of 80% of radio-opaque markers (ROM) which are detected by x-ray in the fecal samples collected over the next 5 days after swallowing the ROM.
    Time Frame
    4 weeks
    Secondary Outcome Measure Information:
    Title
    Whole gut transit time
    Description
    Whole gut transit time is the time required for the passage of 80% of radio-opaque markers (ROM) which are detected by x-ray in the fecal samples collected over the next 5 days after swallowing the ROM.
    Time Frame
    2 weeks
    Title
    Stool frequency
    Description
    using a bowel movement diary
    Time Frame
    2 weeks and 4 weeks
    Title
    Fecal output
    Description
    Fecal out is the weight of the fecal samples collected over the 5 days preceding the 2 week and 4 week time point
    Time Frame
    2 weeks and 4 weeks
    Title
    Percent fecal moisture
    Description
    Fecal moisture is determined by freeze drying fecal samples and calculating the percent moisture in the fecal sample
    Time Frame
    2 weeks and 4 weeks
    Title
    Bristol Stool Score
    Description
    using Bristol Stool Chart
    Time Frame
    2 weeks and 4 weeks
    Title
    Fecal pH
    Time Frame
    2 weeks and 4 weeks
    Title
    Subjective measures of bowel comfort
    Description
    Gastrointestinal Quality of life questionnaires (GIQLI)
    Time Frame
    2 weeks and 4 weeks
    Title
    Gut microbiota
    Description
    Using 16S ribosomal RNA sequencing techniques
    Time Frame
    2 weeks and 4 weeks
    Title
    Fecal short chain fatty acids
    Description
    Using gas chromatography
    Time Frame
    2 weeks and 4 weeks
    Title
    Fecal total bile acids
    Time Frame
    2 weeks and 4 weeks
    Title
    Fecal enzymes
    Description
    fecal beta-glucoronidase
    Time Frame
    2 weeks and 4 weeks
    Title
    Fecal ammonia
    Time Frame
    2 weeks and 4 weeks
    Title
    Intestinal gas production
    Description
    using breath hydrogen production
    Time Frame
    2 weeks and 4 weeks
    Title
    Appetite
    Description
    Appetite will be measured via visual analogue score (VAS)
    Time Frame
    2 weeks and 4 weeks
    Title
    Ad libitum energy intake
    Description
    Ad libitum energy intake is measured by serving the subject an excess of food
    Time Frame
    2 weeks and 4 weeks

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Maximum Age & Unit of Time
    60 Years
    Accepts Healthy Volunteers
    Accepts Healthy Volunteers
    Eligibility Criteria
    Inclusion Criteria: Healthy male or female between the ages of 18-60 years Subject has a body mass index of ≥18.5 and ≤30 kg/m2 at screening visit. Subject is willing to stick to their normal habitual diet excluding the consumption of any unusual high energy-rich or fat-rich meals or prolonged fasting, etc. through the study period. Subject is willing to maintain their habitual physical activity patterns throughout the study period. Subject has been weight stable within the last 6 months. Subject has no health conditions that would prevent him or her from fulfilling the study requirements as judged by the investigator on the basis of medical history and routine laboratory test results. Low fiber consumer (≤14 g per day) Subject is willing to follow study procedures and dietary restrictions (ex: stick to habitual diet, refrain from consuming alcohol 24 hours prior to test days). Exclusion Criteria: History of a gastrointestinal disorder Lactose intolerant High fiber consumer (≥15 g per day) Use of pre-and probiotics in the past 90 days High protein consumer (i.e. vegetarians or those who follow diets high in protein such as paleo) History of psychological illness or conditions that may interfere with subjects ability to understand study directions Use of antibiotics or signs of active systemic infection in the last 6 months. Subjects who are on hypo/hypercaloric diet aiming for weight loss or weight gain History or presence of cancer in the prior 2 years (except for non-melanoma skin cancer). Currently pregnant, lactating or planning to be pregnant during the study period Regular use of dietary supplements (ex: fish oil, riboflavin, etc.), 90 days prior to study inclusion Exposure to any non-registered drug product within the last 30 days prior to screening visit History of or strong potential for alcohol or substance abuse (within 12 months of screening visit). Alcohol abuse is defined as >60g (men)/40g (women) pure alcohol per day (1.5 L/ 1 l beer resp. 0.75l/0.5l wine). Allergy or sensitivity to oat bran or any meals or snacks provided Current smoker or use of tobacco products in the past 90 days Concurrent or recent participation (30 days) in a dietary intervention trial Anything in the judgment of the investigator would interfere with the subject's ability to comply with the study (protocol), which might confound the interpretation of the study results, or put the subject at undue risk.
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Joanne Slavin, PhD
    Organizational Affiliation
    University of Minnesota
    Official's Role
    Principal Investigator

    12. IPD Sharing Statement

    Plan to Share IPD
    No
    Citations:
    PubMed Identifier
    18926133
    Citation
    Grabitske HA, Slavin JL. Low-digestible carbohydrates in practice. J Am Diet Assoc. 2008 Oct;108(10):1677-81. doi: 10.1016/j.jada.2008.07.010.
    Results Reference
    background
    PubMed Identifier
    20090313
    Citation
    Stewart ML, Nikhanj SD, Timm DA, Thomas W, Slavin JL. Evaluation of the effect of four fibers on laxation, gastrointestinal tolerance and serum markers in healthy humans. Ann Nutr Metab. 2010;56(2):91-8. doi: 10.1159/000275962. Epub 2010 Jan 19.
    Results Reference
    background
    PubMed Identifier
    9734752
    Citation
    Chen HL, Haack VS, Janecky CW, Vollendorf NW, Marlett JA. Mechanisms by which wheat bran and oat bran increase stool weight in humans. Am J Clin Nutr. 1998 Sep;68(3):711-9. doi: 10.1093/ajcn/68.3.711.
    Results Reference
    background

    Learn more about this trial

    Effect of Oat Bran on Bowel Function and Appetite

    We'll reach out to this number within 24 hrs