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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT04018040
Registration number
NCT04018040
Ethics application status
Date submitted
26/05/2019
Date registered
12/07/2019
Titles & IDs
Public title
Vegetarian Diet in IBD
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Scientific title
Efficacy of a Lacto-ovo Vegetarian Diet in Mild to Moderate IBD
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Secondary ID [1]
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EdithCowanU
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Universal Trial Number (UTN)
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Trial acronym
LOVIBD
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Ulcerative Colitis
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Crohn Disease
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Inflammatory Bowel Diseases
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Condition category
Condition code
Oral and Gastrointestinal
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Inflammatory bowel disease
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Inflammatory and Immune System
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Other inflammatory or immune system disorders
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Oral and Gastrointestinal
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Crohn's disease
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Other interventions - Lacto-ovo vegetarian diet
Experimental: Intervention Group - Patients will follow a lacto-ovo vegetarian diet for an 8 week period. patients will be provided with a lacto-ovo vegetarian food box delivery service with fresh ingredients and recipes to cover four dinners per week.
Other interventions: Lacto-ovo vegetarian diet
Lacto-ovo vegetarian diet inclusive of dairy and eggs
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Intervention code [1]
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Other interventions
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Number of participants with a clinical response at week 8
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Assessment method [1]
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A clinical response is defined as a decrease from baseline in the total Mayo score of at least three points, with an accompanying decrease in the subscore for rectal bleeding or at least 1 point or an absolute subscore for rectal bleeding of 0 or 1
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Timepoint [1]
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Week 8
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Secondary outcome [1]
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Number of participants achieving clinical remission at week 8
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Assessment method [1]
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A clinical remission is defined by a total Mayo score of 2 points or lower, with no individual subscore exceeding 1 point or a reduction in HBI of three points
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Timepoint [1]
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Week 8
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Secondary outcome [2]
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Number of participants with changes to IBDQ score at week 8
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Assessment method [2]
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Change in total score from baselines. IBDQ - normal quality of life score is 170 points (range 32 to 224) and a quality of life response is a change of 16 points.
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Timepoint [2]
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Week 8
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Secondary outcome [3]
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Participants Food related quality of life in IBD (Fr-QoL 29) score at week 8
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Assessment method [3]
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Change in total score from baseline. Lowest score of 29 reflects poor quality of life, maximum score of 145 reflects highest quality of life score.
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Timepoint [3]
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Week 8
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Secondary outcome [4]
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Participants SF-36 quality of life score at week 8
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Assessment method [4]
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SF-36- change in total score from baseline. A score of 0 reflects maximum disability, the maximum score of 100 reflects no disability.
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Timepoint [4]
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Week 8
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Secondary outcome [5]
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Number of participants achieving a change in gut microbiome diversity at week 8
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Assessment method [5]
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The gut microbiome will be examined using ITS2, 16S rRNA gene and metagenomics.
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Timepoint [5]
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Week 8
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Secondary outcome [6]
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Number of participants with a change in beneficial gut metabolome profile at week 8
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Assessment method [6]
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Untargeted metabolomics will be performed on stool samples using high-resolution Gas Chromatography Mass Spectrometry (GC-Orbitrap-MS). Metabolite identification will be established prior to statistical analysis, by matching against an in-house MS/MS spectral library of 900 metabolites and searching online spectral libraries (mzCloud, Metlin, HMDB and Massbank).
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Timepoint [6]
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Week 8
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Eligibility
Key inclusion criteria
Inclusion Criteria I. Is able to provide informed consent. II. Is over the age of 18 years. III. Has a diagnosis of ulcerative colitis or Crohn's disease for over a 3-month duration that was confirmed by a specialist gastroenterologist IV. Pro-6 score of 2 to 4, partial mayo 3-6 (mild to moderate UC) or Harvey Bradshaw Index (HBI) 5 to 15 (Crohn's disease)
V. Medications:
1. Oral 5-Aminosalicylates: If taking an oral 5-Aminosalicylates the patient has used them continuously for 4 weeks and has been on a stable dose for 2 weeks prior to the screening visit.
2. Oral Corticosteroids: If taking oral corticosteroids the patient has used them continuously for 4 weeks and has been on a stable dose for 2 weeks prior to the screening visit at a dose of =30mg.
3. Oral Azathioprine/6MP, Methotrexate or tacrolimus: If taking one of these medications the patient has used them for a minimum of 12 weeks and has been on a stable dose for 4 weeks prior to screening.
4. Biologic therapy with infliximab, adalimumab or vedolizumab: If taking one of these medications the patient has used them for a minimum of 12 weeks
5. Rectal Preparations; 5-Aminosalicylates, corticosteroids or tacrolimus: If taking one of these medications the patient has used them continuously for 4 weeks and has been on a stable dose for 2 weeks prior to the screening visit.
VI. Willing to participate in the study and comply with the proceedings by signing a written informed consent.
VII. Free of any clinically significant disease, other than ulcerative colitis/Crohn's disease, that would interfere with the study's evaluations.
VIII. Subjects can read and understand English and is able to adhere to the study methodology and visit schedules.
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Minimum age
18
Years
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Maximum age
79
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Exclusion Criteria
I. Has been on antibiotics within the last four weeks. II. Has a known food allergy to nuts, soy, eggs or dairy. III. Is pregnant or breast feeding. IV. Following a vegetarian, vegan or low FODMAP diet. V. Has known dementia and the inability to understand the trial requirements. VI. Ulcerative colitis: Patients with less than 15cm of disease (proctitis) VII. Crohn's disease: Patients with severe Disease (HBI > 15) or remission (HBI<5) VIII. Patients with active extraintestinal disease, current B2 (Fixed non inflammatory stricture1 or small bowel obstruction) or B3 disease (Boneh et al, 2017)
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Study design
Purpose of the study
Treatment
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Allocation to intervention
NA
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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
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
NA
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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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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
6/05/2019
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
10/08/2023
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Sample size
Target
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Accrual to date
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Final
21
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Recruitment in Australia
Recruitment state(s)
NSW,WA
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Recruitment hospital [1]
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Liverpool Hospital - Sydney
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Recruitment hospital [2]
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St John of God Subiaco Hospital - Perth
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Recruitment hospital [3]
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Fiona Stanley Fremantle Hospitals Group - Perth
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Recruitment hospital [4]
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Royal Perth Hospital - Perth
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Recruitment postcode(s) [1]
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- Sydney
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Recruitment postcode(s) [2]
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6111 - Perth
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Recruitment postcode(s) [3]
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- Perth
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Funding & Sponsors
Primary sponsor type
Other
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Name
Edith Cowan University
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Address
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Country
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Other collaborator category [1]
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Other
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Name [1]
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St John of God Healthcare, Perth
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Address [1]
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Country [1]
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Other collaborator category [2]
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Other
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Name [2]
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Fiona Stanley Fremantle Hospitals Group
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Address [2]
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Country [2]
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Other collaborator category [3]
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Other
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Name [3]
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Royal Perth Hospital
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Address [3]
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Country [3]
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Ethics approval
Ethics application status
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Summary
Brief summary
To determine whether a lacto-ovo vegetarian diet is effective in improving gastrointestinal symptoms, quality-of-life, intestinal inflammation and gut microbiota composition in mild-to-moderate IBD compared to a standard omnivorous diet.
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Trial website
https://clinicaltrials.gov/study/NCT04018040
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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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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
All data will be de-identified
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What supporting documents are/will be available?
No Supporting Document Provided
Type
Other Details
Attachment
Study protocol
Study Protocol, Statistical Analysis Plan, and Inf...
[
More Details
]
https://cdn.clinicaltrials.gov/large-docs/40/NCT04018040/Prot_SAP_ICF_001.pdf
Statistical analysis plan
Study Protocol, Statistical Analysis Plan, and Inf...
[
More Details
]
https://cdn.clinicaltrials.gov/large-docs/40/NCT04018040/Prot_SAP_ICF_001.pdf
Informed consent form
Study Protocol, Statistical Analysis Plan, and Inf...
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More Details
]
https://cdn.clinicaltrials.gov/large-docs/40/NCT04018040/Prot_SAP_ICF_001.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT04018040