NCT07520461 · University of Minnesota
Microbiome-targeted Diet Therapy in Ulcerative Colitis
What this study is about
The central objective of this proposal is to test a novel diet capable of meeting the elevated protein requirements in ulcerative colitis (UC), while simultaneously decreasing microbial hydrogen sulfide (H2S) production in the colon with fiber.
View original scientific description
The central objective of this proposal is to test a novel diet capable of meeting the elevated protein requirements in ulcerative colitis (UC), while simultaneously decreasing microbial hydrogen sulfide (H2S) production in the colon with fiber.
Interventions
OTHER
High Protein, High Fiber (HPHF) Diet
The HPHF diet is a diet designed to maximize the intake of proteins and fermentable dietary fibers. Frozen meals are provided to participants weekly and consumed over two non-consecutive 7-day periods.
Primary outcome measures
Fecal H2S Production
Time frame: Week 4
Assessed from stool samples
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Ability and willingness to provide informed consent
- Age at least 18 years old
- Diagnosis of UC based on clinical and endoscopic criteria
- UC duration of at least 3 months
- Ulcerative Colitis Endoscopic Index of Severity (UCEIS) score ≤4 within 90 days of randomization
- On a stable dose or no existing UC therapies (apart from steroids) for defined periods (as outlined below).
- ≥4 weeks if no medication, 5-ASA
- ≥8 wk for immunomodulatory therapy
- ≥12 wk for biologics
- Ability to comply with study requirements in the opinion of the primary investigator
Exclusion criteria
- Moderate or severe UC as defined by UCEIS ≥5
- History of stomach surgery or bowel resection
- Antibiotic use within 3 months
- Anticipated antibiotic exposure during the study period (e.g. perioperative antibiotics)
- Pregnancy or breastfeeding
- History of anaphylactic food allergies
- Intolerance of high dietary fiber content
- Ongoing alcohol or drug abuse
- Habitual vegan diet pattern
- Insufficient freezer space to accommodate meal delivery
Where
- Minneapolis, Minnesota
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Oct 6, 2026 · Source of record for eligibility and locations