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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01977183
Other study ID # RRC/2013/1285
Secondary ID B2013:016
Status Completed
Phase N/A
First received
Last updated
Start date September 2013
Est. completion date June 2016

Study information

Verified date July 2015
Source St. Boniface Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this clinical trial is to study the effects of potato resistant starch on the microbiota (microorganisms or bacteria) and short chain fatty acids levels of the gut. Levels will be measured and compared between elderly adults and in pre-elderly, adults from the general public. A correlation between the use of potato resistant starch and specific clinical and quality of life endpoints between elderly adults and in pre-elderly, adults from the general public will be studied. Hypothesis 1: The investigator hypothesizes that the microbiome in elderly adults (≥70 years) is less diverse and more prone to imbalance compared to adults (30-50 years) from the general population and that this imbalance of the gut microflora in the elderly adults is partially related to inadequate RS in their diet. Hypothesis 2: The investigator hypothesizes that ingestion of potato resistant starch of food grade quality (MSPrebiotic) will stabilize the gut microbiome (i.e. high Firmicutes/Bacteroides ratio)in LTC residents (i.e. similar to that of adults from the general population), thereby improving gut health and reducing the risk of diarrhea and/or gut infection.


Description:

To assess the impact on the potato resistant starch on the microbiota, pyrosequencing will be performed on stool samples to determine the original composition and assess any changes over the study period. In addition the impact of the potato resistant starch on inflammatory markers will be assess through blood samples collected over the study period.


Recruitment information / eligibility

Status Completed
Enrollment 84
Est. completion date June 2016
Est. primary completion date January 2016
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 30 Years and older
Eligibility Inclusion Criteria: - Ability to provide written informed consent - Willing to provide stool and blood specimens 5 times over the 14 week study period - Subjects = 70 years of age - Subjects 30-50 years of age Exclusion Criteria: - Pregnancy - Crohn's disease or any other inflammatory bowel disease - Individuals with Lupus, or on cancer chemotherapy - Pre-diabetes or Diabetes - Thyroid disease - Renal disease - Hepatic disease - Previous gastrointestinal surgery (intestinal resection, gastric bypass, colorectal surgery) - Subjects on probiotic - Subjects on antibiotics at time of recruitment or on antibiotics within the previous five weeks - Individuals experiencing dysphagia - Subjects using additional fiber supplements - Subjects on digestants, emetics and antiemetics, medications for acid peptic disease and antacids.

Study Design


Related Conditions & MeSH terms

  • Focus of Study; Impact of MSPrebiotic on Gastrointestinal Microbiota

Intervention

Dietary Supplement:
MSPrebiotic
Potato Resistant Starch
Placebo
Placebo - Corn Starch

Locations

Country Name City State
Canada Deer Lodge Centre Winnipeg Manitoba
Canada St. Boniface Hosptial Research Centre Winnipeg Manitoba

Sponsors (3)

Lead Sponsor Collaborator
St. Boniface Hospital Manitoba Starch Products, National Microbiology Laboratory, Canada

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary Tolerability of 30g dose of MSPrebiotic Changes from baseline in the tolerability of ingestion of 30 g once/day of MSPrebiotic with respect to gastrointestinal side effects (excessive flatulence, changes in bowel movements, abdominal pain and bloating) at 2, 6, 10 and 14 weeks. 2, 6, 10 and 14 weeks
Primary Gut health improvements Changes from baseline in gut health improvements including: reduced constipation (i.e. improved ease of bowel movements without stool softeners), microbiome composition (i.e. favourable Firmicutes to Bacteroides ratio) at 2, 6, 10 and 14 weeks. 2, 6, 10 and 14 weeks
Primary Levels of short chain fatty acids in stool and lipid level in blood Changes from baseline of short chain fatty acid levels in stool including; acetate, propionate, butyrate, isobutyrate, valerate, isovalerate at 2, 4, 6, 10 and 14 weeks. 2, 4, 6, 10 and 14 weeks
Primary Inflammatory marker Changes from baseline of Inflammatory marker (IL-10, C-reactive protein, TNFa) levels in blood at 2, 6, 10 and 14 weeks. 2, 6, 10 and 14 weeks
Secondary Changes from baseline in overall health at 2, 6, 10 and 14 weeks This will be assessed based on completion of a daily health log that assesses a wide variety of parameters. 2, 6, 10 and 14 weeks