Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 and up

Oral fecal microbiota transplant for preventing ulcerative colitis relapse

Official title: A Phase 2a, Randomized, Double-blinded, Placebo-Controlled Study to Evaluate the Safety and Efficacy of Lyophilized Fecal Microbiota Transplantation (PRIM-DJ2727) Administered Orally in Combination With Standard of Care Therapy for Prevention of Relapse or Intestinal Inflammation in Adults With Ulcerative Colitis

Run by The University of Texas Health Science Center, Houston · NCT04373473 · Data updated 2026-11-12

This study is testing whether taking special capsules made from gut bacteria can help adults with ulcerative colitis stay in remission and avoid flare-ups.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment58 (estimated)
SponsorThe University of Texas Health Science Center, Houston
Academic / other
Drugs / interventionschemotherapy, prednisone
Locations1 site (Houston, Texas)
StatusRecruiting
StartedSeptember 14, 2020
Main results expectedDecember 31, 2026
Study endsDecember 31, 2027
Registry record updatedMarch 9, 2026
Trial IDNCT04373473 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with a history of active ulcerative colitis in the past year who are currently in remission.

Probably not a fit

Patients who are unable to take multiple capsules orally or who are pregnant or breastfeeding may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and efficacy of lyophilized PRIM-DJ2727 capsules administered orally to adults with ulcerative colitis who are in remission. Participants will receive either the active treatment or a placebo, and their gut microbiota will be analyzed over time to identify any associations with clinical outcomes. The study aims to provide insights into the potential benefits of fecal microbiota transplantation in maintaining remission and preventing inflammation in ulcerative colitis patients.

Why it matters

Potential benefit: If successful, this approach could help prevent relapse and manage intestinal inflammation in patients with ulcerative colitis.

How similar studies have gone: Other studies have shown promise with fecal microbiota transplantation, but this specific oral approach is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Adult ≥18 years of age
2. History of active UC in the past 12 months based on standard clinical, endoscopic, or histologic criteria.
3. Remission of UC based on clinical grounds (partial Mayo score of ≤2 with each subscore ≤1), and on stable maintenance therapy.
4. Sexually active male and female subjects of childbearing potential must agree to use an effective method of birth control during the study.
5. Female subjects of childbearing potential must have a negative urine Qualitative HCG pregnancy test at enrolment and on the Week 1, Day 1 of the Treatment prior to administration of study drug.
6. Willing and able to sign an informed consent form and attend all study-related clinic visits, assessments, and follow-up phone calls.
7. Subject has an attending physician who will provide the non-FMT care.

Exclusion Criteria:

1. Unable to take multiple capsules orally.
2. Females who are pregnant, breastfeeding, or planning to become pregnant during the study.
3. Receipt of systemic non-topical antibiotics within 14 days of treatment day 1.
4. Positive results for active HIV, Hepatitis B, or Hepatitis C infections.
5. History of recurrent Clostridium difficile infection or FMT in the past 6-months.
6. History of other active gastrointestinal conditions such as irritable bowel syndrome, microscopic colitis, celiac disease, short gut syndrome, colostomy, colectomy, gastrointestinal fistulae or strictures, chronic parasitic infections, diverticulitis etc.
7. Known history of bile acid diarrhea
8. Compromised immune system (e.g. primary immune disorders or clinical immunosuppression due to a medical condition or medication e.g. taking oral prednisone \>20 mg a day or prednisone-equivalent)
9. History of active cancer and/or ongoing chemotherapy (superficial non-metastatic cancers and maintenance chemotherapy are permitted).
10. History of use of an investigational drug within 90 days prior to the screening visit.
11. History of significant uncontrolled systemic disease that in the opinion of the study investigator could interfere with study participation and/or objectives.
12. Life expectancy of \< 1 year.
13. In the opinion of investigator, subject for any reason, should be excluded from the study.

Where it's running

  • The University of Texas Health Science Center at Houston
    Houston, Texas, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.