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COmbinAtion Therapy of dieT With biologicalS for Crohn's Disease: the OATS Study

COmbinAtion Therapy of dieT With biologicalS for Crohn's Disease: the OATS Study

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04946448
Acronym
OATS
Enrollment
144
Registered
2021-06-30
Start date
2021-09-14
Completion date
2025-09-30
Last updated
2024-07-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Crohn Disease, Diet, Healthy, Inflammatory Bowel Diseases

Brief summary

This study is a randomised open label study, comparing the FIT diet with standard diet in patients with Crohn's disease treated with biologic therapy.

Interventions

OTHERFIT diet

Dietary intervention as add-on therapy to biologicals

Sponsors

Universitaire Ziekenhuizen KU Leuven
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Adult patients (18-80 years) * active inflammation of terminal ileum and/or colon with a Simple Endoscopic Score for Crohn's Disease (SES-CD) greater than 5 (or greater than 3 for patients with isolated ileitis), * patient reported outcome 2 (PRO2 - 7 day average daily stool frequency x 2 + 7 day average daily abdominal pain score x 5) \> 8, * faecal calprotectin above 250 µg/g.

Exclusion criteria

* Abcess, * Bowel resection within 6 months before enrolment, * Ostomy, * Short-bowel syndrome, * Clinically significant stricture that could require surgery, * Pregnant, * Lactating woman or desire to become pregnant during the study, * Unwilling or unable to follow the study diet.

Design outcomes

Primary

MeasureTime frameDescription
Steroid-free clinical and biochemical remissionMonth 6Normalization of faecal calprotectin (\< 250 µg/g) and steroid-free clinical remission, defined as patient PRO2 ≤ 8 (average daily stool frequency ≤ 1.5 AND average daily abdominal pain score ≤ 1), at month 6.

Secondary

MeasureTime frameDescription
Clinical remission6 months and 1 yearPRO2≤8
Steroid-free clinical remission6 months and 1 yearPRO2≤8, no steroids
Endoscopic remission1 yearSES-CD \<2
Endoscopic improvement1 yeardrop in SES-CD with at least 50%
Clinical response6 months and 1 year≥ 30% decrease in average daily stool frequency and/or ≥ 30% decrease in average daily abdominal pain score and both not worse than baseline
Fecal calprotectin improvement6 months and 1 year50% or more improvement in faecal calprotectin or faecal calprotectin \<250 µg/g
Number of participants without nutritional deficiencies6 months and 1 yearAbsence of vitamin B12, vitamin D, folic acid, iron deficiencies
Fatigue6 months and 1 year30% or more improvement in IBD Disk energy score
Health-related quality of life6 months and 1 year30% or more improvement in overall IBD Disk score
CRP improvement6 months and 1 year50% or more improvement in CRP or CRP \<5 mg/L

Countries

Belgium

Contacts

Primary ContactJoão PG Sabino, MD PhD
joao.sabino@uzleuven.be003216341770
Backup ContactIsolde Aerden
isolde.aerden@uzleuven.be

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026