Evaluation the Safety and Efficacy of Lyophilized Fecal Microbiota Transplantation Administered Orally for Prevention of Relapse or Intestinal Inflammation in Adults With Ulcerative Colitis

Q: Who can participate in NCT04373473?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

Q: How do I contact the trial site for NCT04373473?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Q: Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Q: Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

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

Evaluation the Safety and Efficacy of Lyophilized Fecal Microbiota Transplantation Administered Orally for Prevention of Relapse or Intestinal Inflammation in Adults With Ulcerative Colitis (NCT04373473) is a Phase 2 interventional studying Adults With Ulcerative Colitis, sponsored by The University of Texas Health Science Center, Houston. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

About This Trial

The purpose of the study is to evaluate the efficacy and safety of lyophilized PRIM-DJ2727 capsules given orally in subjects with ulcerative colitis at remission stage. This study will also include longitudinal analyses of recipient's gut microbiota taxonomy and metagenomics to determine potential associations with clinical outcomes in context of active FMT or placebo administration.

What Stage of Research Is This?

Phase 2 trials evaluate whether a treatment actually works against Adults With Ulcerative Colitis and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 58 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Adults With Ulcerative Colitis subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: 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 willing to sign a consent form 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. Who Should NOT Join This Trial: 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. ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language

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.

Treatments Being Tested

DRUG

PRIM-DJ2727

Fecal Microbiota Transplantation (FMT) product manufactured as PRIM-DJ2727 capsules consists of lyophilized microbiota suspension from well-screened donors. Microbiota from three donors will be combined to make the product.

DRUG

Placebos

Placebo capsule will be identical to PRIM-DJ2727 but will not contain intestinal bacteria.

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

The University of Texas Health Science Center at Houston

Houston, Texas, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT04373473), the sponsor (The University of Texas Health Science Center, Houston), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT04373473 clinical trial studying?

Who can participate in NCT04373473?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT04373473?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT04373473. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT04373473. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.