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CompletedNCT04757181IBD-AIDUpdated Jul 21, 2026

The Inflammatory Bowel Disease - Anti-Inflammatory Diet (IBD-AID)

An interventional study of The IBD-AID in Inflammatory Bowel Diseases, sponsored by University of Massachusetts, Worcester. Completed at 1 site in United States. Open to participants aged 15 Years and older. Per ClinicalTrials.gov, last updated 2026-07-21.

Sponsored by University of Massachusetts, Worcester · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 4 years after the study started (first participant enrolled Feb 2017, registered Feb 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
38
Allocation
Not applicable
Ages
15 Years and older
Sex
All
01

Study summary

The goal of this study is to prospectively test the hypothesis that specific dietary modification can improve patient symptoms by promoting beneficial changes in the composition of the microbiome that, in turn, alter the immune response in such a way as to and ameliorate inflammatory conditions such as Inflammatory Bowel Disease (IBD). The potential long term benefit of this research is a validated set of efficacious dietary guidelines for persons with IBD. The potential immediate benefit to patients is symptomatic relief and healing.

Read the detailed description

The gut microbiome is the community of microbes that inhabit the gastrointestinal tract. Sequencing and analysis of the DNA and/or RNA of the gut microbiome (metagenomics) allow the identification of the species present and assess the metabolic activities they carry out. Stools are largely microbial and the metagenomics of stool can provide insights into the functioning of the gut microbiome.

Nutrient processing by the gut microbiome is fundamental to energy extraction and immune response. Until recently, investigation of nutritional approaches to treating Inflammatory bowel diseases (IBD) has been largely limited to the use of enteral and total parenteral nutrition with the aim of providing bowel rest.

The IBD Anti-inflammatory diet (IBD-AID) was developed to establish a dietary therapy to address nutritional adequacy and malabsorption issues, promote symptom relief, and assist with remission. The IBD-AID has been designed to favor colonic bacteria that degrade dietary fibers and produce short-chain fatty acids (SCFAs). SCFAs regulate the production of cytokines (TNF-α, IL-2, IL-6, and IL-10), eicosanoids, and chemokines (e.g., MCP-1 and CINC-2) by acting on macrophages and endothelial cells. High levels of SCFAs then promote a hyporesponsive immunological environment to commensal bacteria through the down-regulation of those pro-inflammatory effectors, aiding homeostasis maintenance.

This diet utilizes foods that are available in most grocery stores and is intended to be a complete diet that provide balanced nutrition. As many of the available medical treatments for inflammatory bowel disease have risks, this diet may be a safer alternative to medical treatment in this population. The nutrition recommendations are safe. Diet modification poses minimal risk.

02

Conditions studied

  • Inflammatory Bowel Diseases
03

In context

Inflammatory Bowel Diseases

1,460 studies on the registry are indexed under Inflammatory Bowel Diseases; 437 are open to participants now.

This study's enrollment of 38 is below the median of 70 across 770 interventional studies indexed under Inflammatory Bowel Diseases.

Browse Inflammatory Bowel Diseases studies →

Lead sponsor

University of Massachusetts, Worcester is the lead sponsor of 288 studies on the registry; 54 are open to participants now.

Of its 25 completed or terminated interventional studies of FDA-regulated products, 18 (72%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
15 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • - 15 years of age or older
  • Willingness and capacity to significantly change diet
  • Willing and able to comply with scheduled visits, blood, and stool collection, and other study procedures and to complete the study
  • Clinical provider (GI clinician) permission for IBD patients to participate in the intervention is required for participation in the study.
  • Evidence of personally signed and dated informed consent document indicating that the subject has been informed of all pertinent aspects of the study.
  • For children age 15 and above, the assent of the child and consent of a parent or legal guardian will be required.
  • One of the following:

    • diagnosis of IBD, specifically Crohn's Disease and Ulcerative Colitis
    • healthy control

Exclusion criteria

Exclusion Criteria:

  • the presence of infection (such as C.diff) precipitating the colitis
  • antibiotics taken within 3 months of study entry
  • medically unstable to give consent
  • on heparin or Coumadin
  • Prisoners
  • Subjects who do not speak or understand English, to ensure that there is consistency in teaching and educational materials.
  • Subjects who self-report current pregnancy
  • Patients who do not receive clinical care at UMass Memorial Health Care
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
38 participants (actual)

Study arms

  • Experimental
    IBD patients

    IBD patients will be used as their own control. Participants will start the study in a baseline phase (4 weeks) and intervention phase (8 weeks)

    Other: The IBD-AID

Interventions

  • OtherThe IBD-AID

    Subjects will meet with study personnel for to fill out baseline questionnaires (approximately a 1-hour visit). Subjects will be instructed to make dietary changes based one the IBD-AID guidelines. Dietary instruction will be delivered via individual and group sessions led by trained study personnel. Participants will be expected to learn the skills of dietary change to the IBD-AID and will begin their 8 weeks compliance period followed by endpoint measures. Participants are encouraged to attend 3 cooking classes (1.5 hours duration) in our teaching kitchen.

06

What researchers measure

Primary outcomes

  1. Microbiome change after the IBD-AID

    Analysis of the microbial composition of the gut and changes that correlate with diet compliance

    Time frame: 8 weeks

Secondary outcomes

  1. Improvement of symptoms

    Assessment of disease severity and overall quality of life before and after the IBD-AID

    Time frame: 8 weeks

  2. Improvement of inflammatory markers

    Assessment of inflammatory markers in blood before and after the IBD-AID

    Time frame: 8 weeks

07

Study locations

1 site
  • University of Massachusetts Medical School
    Worcester, Massachusetts 01655, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 21, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04757181
Lead sponsor
University of Massachusetts, Worcester
Responsible party
Ana Maldonado-Contreras (Assistant Professor, University of Massachusetts, Worcester) — Principal investigator
First posted
Feb 17, 2021
Start date
Feb 1, 2017
Primary completion
Feb 1, 2019
Completion
Jun 1, 2019
Last update
Jul 21, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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