The Effect of Prebiotic B-GOS on the Immune Function, Metabolism and Gut Microbiota of Elderly People (PRIMES)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01303484
Recruitment Status : Completed
First Posted : February 24, 2011
Last Update Posted : March 25, 2016
University of Reading
Information provided by (Responsible Party):

Brief Summary:
The purpose of this study is to determine the effects of prebiotic B-GOS on the immune function, metabolism and gut microbiota of elderly people

Condition or disease Intervention/treatment Phase
Immunosenescence Dietary Supplement: Bi2muno® GOS Dietary Supplement: Maltodextrin Early Phase 1

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 40 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomised, Double-blind, Placebo Controlled Cross- Over Study to Determine the Effect of prebioticB-GOS on the Immune Function, Metabolism and Gut Microbiota of Elderly People
Study Start Date : May 2011
Actual Primary Completion Date : November 2012
Actual Study Completion Date : July 2014

Arm Intervention/treatment
Placebo Comparator: MDn
Dietary Supplement: Maltodextrin
5.5g daily for 10 weeks
Other Name: Dextrin
Active Comparator: B-GOS
Dietary Supplement: Bi2muno® GOS
5.5g/day for 10 weeks
Other Name: galactooligosaccharide

Primary Outcome Measures :
  1. Effect of B-GOS on immunity by measuring various inflammatory/immune biomarkers [ Time Frame: 12 months ]
  2. Effect of B-GOS on the faecal microbiota composition of elderly persons [ Time Frame: 12 months ]
  3. Effect of aging on body metabolites using NMR [ Time Frame: 12 months ]

Secondary Outcome Measures :
  1. Effect of B-GOS on gut permeability [ Time Frame: 12 months ]
  2. Weekly assessment of stools and gastrointestinal symptoms [ Time Frame: 8 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   65 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Aged between 65 and 80 years of age.
  • In good general health
  • The volunteer has given written informed consent to participate and is willing to participate in the entire study.

Exclusion Criteria:

  • History or evidence of disease of the gastrointestinal tract; such as tumour, irritable bowel syndrome, etc., within the previous 5 years.
  • Family history of colorectal cancer in under 50's
  • Consumed probiotic or prebiotic preparations on a regular basis (at least 3 times per week) in the last 2 weeks.
  • Former participation in another study involving prebiotic or probiotic preparations or investigational drugs within the previous 6 months, or intention to use such drugs during the course of the study (please note sensory evaluations are still permitted).
  • Undergone surgical resection of any part of the bowel.
  • History of malignancy within the previous 5 years (with exception of well-treated basal cell carcinoma or in situ cervical carcinoma).
  • Smoker
  • Lactose intolerant
  • Allergic to gluten
  • Currently prescribed immunosuppressive drugs. Participants will be required to withdraw should they begin taking any of the ineligible medication.
  • Intention to use regularly other medication which affects gastrointestinal motility and/or perception.
  • History of alcohol or drug misuse.
  • Suffer from any major conditions involving the following:

Head, Ears, Eyes, Nose and Throat Dermatological/Connective tissue Coeliac disease Neurological Lymphatic Urogenital/Rectal Gastroenterological Abdominal Respiratory Cardiovascular Incontinence

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01303484

United Kingdom
University of Reading
Reading, Berkshire, United Kingdom
Sponsors and Collaborators
University of Reading
Principal Investigator: Glenn Gibson, PhD University of Reading, United Kingdom

Responsible Party: Clasado Identifier: NCT01303484     History of Changes
Other Study ID Numbers: Clasado2011
First Posted: February 24, 2011    Key Record Dates
Last Update Posted: March 25, 2016
Last Verified: March 2016