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Trial registered on ANZCTR
Registration number
ACTRN12616001052426
Ethics application status
Approved
Date submitted
2/08/2016
Date registered
5/08/2016
Date last updated
5/10/2017
Type of registration
Prospectively registered
Titles & IDs
Public title
A Randomised, Double-blinded, Placebo-controlled Study of the probiotic PCC(Registered Trademark) (L. fermentum VRI-003) capsule for the effect on gastrointestinal health and gut microflora in healthy adults (with no medically diagnosed gastrointestinal disease)
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Scientific title
A proof-of-concept study to investigate the effect of ingestion of the probiotic PCC(Registered Trademark) (L. fermentum VRI-003) or placebo capsules on gut health when given to healthy adults (with no medically diagnosed gastrointestinal disease)
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Secondary ID [1]
289814
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nil
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Universal Trial Number (UTN)
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Trial acronym
“The BBIG Study” (Bioxyne’s Bacteria in Gut Study)
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Gastrointestinal health
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Condition category
Condition code
Oral and Gastrointestinal
299676
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0
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Normal oral and gastrointestinal development and function
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment Arm 1: One capsule of PCC (containing Lactobacillus fermentum VRI-003) once daily for six months. Each active capsule contains a minimum of two billion live organisms.
Treatment Arm 2: One capsule of placebo capsule (containing microcrystalline cellulose, MCC) once daily for six months.
Adherence will be monitored through participant self report on daily diary and through accountability of empty containers/number capsule returned.
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Intervention code [1]
295493
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Treatment: Other
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Intervention code [2]
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Prevention
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Comparator / control treatment
One placebo capsule (containing microcrystalline cellulose, MCC) to be taken once daily for six months
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Control group
Placebo
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Outcomes
Primary outcome [1]
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Outcome 1: change in the balance of the genera of the gut microbiome
Instrument 1: this will be quantified using 16S RNA analysis of faecal samples
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Assessment method [1]
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Timepoint [1]
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Timepoints. assessed at three time points: before commencement of study treatment, 3 months after commencement of study treatment and 6 months after commencement of study treatment
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Secondary outcome [1]
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1. Bowel habit and any bowel issues from daily diary
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Assessment method [1]
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Timepoint [1]
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Timepoint: Daily from Screening (up to one week prior to intervention commencement) to final visit (6 months post commencement of intervention).
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Secondary outcome [2]
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2. Use of other medications (based on participant self-report in study diary and at visits)
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Assessment method [2]
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Timepoint [2]
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Timepoint: Daily from Screening (up to one week prior to intervention commencement) to final visit (6 months post commencement of intervention).
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Secondary outcome [3]
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3. Quality of Life (SF-36)
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Assessment method [3]
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Timepoint [3]
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Timepoint: At screening and at 3 months and 6 months after randomisation
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Secondary outcome [4]
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4. Body Weight (using digital scales)
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Assessment method [4]
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Timepoint [4]
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Timepoint: At screening and at 3 months and 6 months after randomisation
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Secondary outcome [5]
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5. Incidence of all adverse events (ie other than GIT) (based on participant self-report in study diary and at study visits) (Note: Strains of L. fermentum and other probiotic are generally regarded as safe (GRAS) and well tolerated, with some bloating and flatulence occurring as the most frequently reported side effects of probiotics in general)
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Assessment method [5]
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Timepoint [5]
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Timepoint: Daily from Screening (up to one week prior to intervention commencement) to final visit (6 months post commencement of intervention).
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Secondary outcome [6]
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6. 6-point Likert Scale* assessment of gastric symptoms (ie for any abdominal pain or discomfort, bloating, flatulence / passage of gas and rumbling stomach):
*Never=0
*1 day per month=1
*2-3 days per month=2
*1 day per week=3
*>1 day per week=4
*Every day=5
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Assessment method [6]
328549
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Timepoint [6]
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Timepoint: At screening and at 3 months and 6 months after randomisation
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Eligibility
Key inclusion criteria
Subject is in general good health with NO history of medically diagnosed gastrointestinal disease.
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Minimum age
18
Years
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Maximum age
80
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Any medically diagnosed gastrointestinal disorder/disease (including inflammatory bowel disease, medically diagnosed IBS)
Clinically significant renal, hepatic, endocrine, cardiac, pulmonary, pancreatic, neurologic, haematologic or biliary disorder
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Study design
Purpose of the study
Prevention
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
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Who is / are masked / blinded?
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Intervention assignment
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Other design features
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Phase
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/09/2016
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Actual
2/11/2016
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Date of last participant enrolment
Anticipated
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Actual
20/12/2016
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Date of last data collection
Anticipated
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Actual
11/07/2017
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Sample size
Target
60
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Accrual to date
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Final
61
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Recruitment in Australia
Recruitment state(s)
NSW
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Funding & Sponsors
Funding source category [1]
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Commercial sector/Industry
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Name [1]
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Bioxyne Limited
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Address [1]
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Suite 305, Level 3, 35 Lime Street,
Sydney NSW 2000
Australia
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Country [1]
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Australia
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Primary sponsor type
Commercial sector/Industry
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Name
Bioxyne Limited
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Address
Bioxyne Limited
Suite 305, Level 3, 35 Lime Street,
Sydney NSW 2000
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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NA
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Address [1]
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NA
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Country [1]
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Bellberry Limited
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Ethics committee address [1]
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129 Glen Osmond Road Eastwood South Australia 5063
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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03/08/2016
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Approval date [1]
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26/08/2016
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Ethics approval number [1]
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Summary
Brief summary
The complex ecosystem of the adult intestinal microflora is estimated to harbour at least 500 different anaerobic bacterial species. Several reports have indicated that five genera account for most of the viable forms of anaerobic bacteria: Bacteroides, Eubacterium, Bifidobacterium, Peptostreptococcus, and Fusobacterium. Some of these species are considered potentially harmful because of their capacity to produce toxins, invade mucosal cells and activate carcinogens and inflammatory responses. There are, however, known strains with health-promoting properties, principally Bifidobacteria and Lactobacilli. This study will examine the capacity of a human-isolated probiotic strain of bacteria to influence the composition of the gut microbiome in healthy adult human volunteers and to examine what health benefits may be associated with daily consumption of the strain in the form of freeze-dried powder in capsules. The strain that will be tested in this study is Lactobacillus fermentum VRI-003, referred to as “PCC(Registered Trademark)”. PCC(Registered Trademark) has been sold as a dietary supplement in capsule and powder form for over ten years worldwide with no reported adverse effect. The study is a proof of concept, single centre, randomised, double-blind placebo controlled, parallel group study. A total of 60 healthy adult subjects (no diagnosed GI disease) will be randomised in a 1:1 ratio to receive either PCC(Registered Trademark) or placebo over a 6 month treatment period. Each active capsule contains a minimum of two billion live organisms. There will be 4 study visits in total. Subjects will provide three faecal samples: at Visit 2 (baseline, Day 1), Visit 3 (day 90) and Visit 4 (day 180). The samples will be analysed by 16S RNA analysis to monitor the composition of the gut microbiome. Subjects will be asked to complete a daily diary regarding their bowel habits. Subjects will also be asked to complete a general health questionnaire (SF-36) on three occasions. Weight will also be recorded.
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Trial website
https://australianclinicaltrials.com/study/probiotic-clinical-trial/
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr Joanne Grimsdale
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Address
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Oztrials Clinical Research
Suite1, 56-56A Thompson Street
Drummoyne NSW 2047
Australia
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Country
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Australia
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Phone
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+61 2 9719 3852
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Peter French
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Address
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Bioxyne Limited
Suite 305, Level 3, 35 Lime Street,
Sydney NSW 2000
Australia
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Country
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Australia
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Phone
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+61 2 8296 0000
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Peter French
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Address
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Bioxyne Limited
Suite 305, Level 3, 35 Lime Street,
Sydney NSW 2000
Australia
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Country
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Australia
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Phone
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+61 2 8296 0000
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Fax
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Email
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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