Dietary Therapy for Ulcerative Colitis

(Sulfur-UC Trial)

NH
Overseen ByNatasha Haskey, PhD
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This study aims to test whether a short liquid-based diet, followed by a low-sulfur eating plan, is safe, manageable, and helpful for people with mild to moderate ulcerative colitis. Investigators want to see if this approach can improve gut health, lower inflammation, and reduce symptoms. Investigators will also test breath samples as an easy, non-invasive way to track gut bacteria activity and disease changes. Investigators believe this diet plan can reduce harmful gut bacteria that produce irritating sulfur compounds, leading to better gut health and measurable improvements that can be detected through breath testing.

Who Is on the Research Team?

NH

Natasha Haskey, RD, PhD

Principal Investigator

University of British Columbia

Are You a Good Fit for This Trial?

This trial is for adults aged 19-70 with mild to moderate ulcerative colitis who have had stable treatment (no recent changes) and are not currently using steroids. Participants should be considering a change in their medication due to ongoing symptoms.

Inclusion Criteria

I am between 19 and 70 years old.
* C-reactive protein (CRP) \> 5 mg/L; or * Fecal calprotectin (FCP) \> 200 µg/g.
I am not currently taking corticosteroids.
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Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Elemental Diet

Participants consume a novel elemental formula as their sole source of nutrition

2 weeks
1 visit (in-person)

Reduced Sulfur Diet

Participants follow a reduced sulfur diet designed to limit dietary sources of sulfur-containing compounds

10 weeks
2 visits (in-person), 1 visit (virtual)

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • Elemental formula (mBiota Elemental)
  • Reduced Sulfur diet

Trial Overview

The study compares three diets: participants' usual diet, a short-term liquid elemental formula, and then a low-sulfur diet. Researchers will use breath tests to see how these diets affect gut health and inflammation in people with ulcerative colitis.

How Is the Trial Designed?

2

Treatment groups

Experimental Treatment

Active Control

Group I: Reduced Sulfur DietExperimental Treatment2 Interventions
Group II: Habitual DietActive Control2 Interventions

Find a Clinic Near You

Who Is Running the Clinical Trial?

University of British Columbia

Lead Sponsor

Trials
1,506
Recruited
2,528,000+

University of Calgary

Collaborator

Trials
827
Recruited
902,000+