Study of Microbiome Transplantation for Constipation and Bloating in Systemic Sclerosis

This study is looking at how a microbiome transplant, called PRIM-DJ2727, might help people with systemic sclerosis (a chronic autoimmune disease) who experience constipation and/or significant bloating. Researchers want to see if PRIM-DJ2727, which is made from filtered stool and given as capsules or an enema, is safe and can improve these symptoms. Some participants will receive PRIM-DJ2727, while others will receive a placebo (an inactive substance). The study will measure changes in your constipation and bloating symptoms using questionnaires. To join, you must be an adult seen at the UT Houston Scleroderma Center, meet specific criteria for systemic sclerosis, and have constipation and/or bloating. The study aims to enroll 21 participants.

Study design
This is an interventional study, meaning participants will receive a specific treatment. It plans to enroll 21 participants.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Symptoms will be assessed within 11 to 12 weeks after treatment.

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NCT06827977

A Study of Microbiome Transplantation for the Treatment of Constipation and/or Significant Bloating in Patients With Systemic Sclerosis

Recruiting
PHASE2Ages 18+InterventionalTreatment
The University of Texas Health Science Center, Houston
~21 participants
Updated 2026-07-08 on ClinicalTrials.gov
What's tested:PRIM-DJ2727Placebo

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Change in symptoms and signs of constipation and/or significant bloating as assessed by total score on the University of California, Los Angeles Gastrointestinal Tract Questionnaire, version 2.0 (UCLA GIT 2.0)
Measured over pre-transplant, post-treatment within weeks 11 to 12
+8 more outcomes measured
Constipation
Bloating
1 sites across 1 states
Texas1
  • Zsuzsanna McMahan, MD, MHS · PRINCIPAL_INVESTIGATOR · The University of Texas Health Science Center, Houston

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Eligibility criteria

Inclusion

Are seen in the UT Houston Scleroderma Center (UTHSC)
Meet 2013 American college of rheumatology (ACR)/European league against rheumatism (EULAR) criteria or CREST criteria for SSc
Meet Rome IV criteria for constipation and/or significant bloating
Subject willing to sign an informed consent form
Subject deemed likely to survive for ≥ 1 year after enrollment
Able to follow study procedure and follow-up
Sexually active male and female subjects of childbearing potential must agree to use an effective method of birth control during the treatment and follow-up period
Female subjects of childbearing potential must have a negative pregnancy test in the 72 hours before the procedure
Subjects who agree to adhere to a stable diet for at least 4 weeks before joining the study and throughout the study
Subjects must have an attending physician who will provide non-transplant care for the subject

Exclusion

Subjects with constipation and/or significant bloating from causes not attributed to SSc as determined by the treating physician (e.g., inflammatory bowel disease, medication, significant diabetes, or hypothyroidism, etc.)
Subjects unwilling to stop taking probiotic supplements during the duration of the study
Subjects that have post-total or hemicolectomy or the presence of a colostomy
Subjects unable to tolerate microbiome transplant via enema for any reason or swallow capsules
Subjects requiring systemic antibiotic therapy 4 weeks before the study
If subjects are on immunosuppression, the immunosuppression dose should be stable for at least 4 weeks before study enrollment
  • Change in symptoms and signs of constipation and/or significant bloating as assessed by total score on the University of California, Los Angeles Gastrointestinal Tract Questionnaire, version 2.0 (UCLA GIT 2.0)pre-transplant, post-treatment within weeks 11 to 12

    This consists of 34 questions covering domains such as diarrhea, constipation, abdominal pain, nausea, bloating, gastroesophageal reflux, fecal incontinence, and emotional well-being related to GI symptoms. Each item is scored on a Likert scale ranging from 0 to 3 (0 = none, 1 = mild, 2 = moderate, 3 = severe), with higher scores indicating greater symptom severity. Domain scores are calculated as the sum of responses to items within the domain, and a total score is calculated by summing all domain scores, representing the overall GI symptom burden. Total score will be reported, and the total score ranges from 0-102.

  • Change in Pelvic Floor Distress as Assessed by the Pelvic Floor Distress Inventory Questionnaire-20 (PFDI-20 summary score)pre-transplant, post-treatment within weeks 11 to 12

    The Pelvic Floor Distress Inventory Questionnaire-20 (PFDI-20) is composed of 3 subscales: the Urinary Distress Inventory-6 (UDI-6), the Pelvic Organ Prolapse Distress Inventory-6 (POPDI-6), and the Colorectal-Anal Distress Inventory-8 (CRADI-8). For each question, the participant must indicate how much bowl, bladder, or pelvic symptoms have been bothering them in the past 3 months on a 4-point scale that ranges from "not at all" (0) to "quite a bit" (4). Total score for each subscale ranges from 0 to 100, with a higher score indicating worse distress. The sum of the 3 subscales are added together to get the PFDI-20 summary score, which ranges from 0 to 300, with a higher score indicating worse distress.

  • Change in Pelvic Floor Distress as Assessed by the Pelvic Floor Distress Inventory Questionnaire-20 (UDI-6 subscale score)pre-transplant, post-treatment within weeks 11 to 12

    The Pelvic Floor Distress Inventory Questionnaire-20 (PFDI-20) is composed of 3 subscales: the Urinary Distress Inventory-6 (UDI-6), the Pelvic Organ Prolapse Distress Inventory-6 (POPDI-6), and the Colorectal-Anal Distress Inventory-8 (CRADI-8). For each question, the participant must indicate how much bowl, bladder, or pelvic symptoms have been bothering them in the past 3 months on a 4-point scale that ranges from "not at all" (0) to "quite a bit" (4). Total score for each subscale ranges from 0 to 100, with a higher score indicating worse distress. The sum of the 3 subscales are added together to get the PFDI-20 summary score, which ranges from 0 to 300, with a higher score indicating worse distress.

  • Change in Pelvic Floor Distress as Assessed by the Pelvic Floor Distress Inventory Questionnaire-20 (POPDI-6 subscale score)pre-transplant, post-treatment within weeks 11 to 12

    The Pelvic Floor Distress Inventory Questionnaire-20 (PFDI-20) is composed of 3 subscales: the Urinary Distress Inventory-6 (UDI-6), the Pelvic Organ Prolapse Distress Inventory-6 (POPDI-6), and the Colorectal-Anal Distress Inventory-8 (CRADI-8). For each question, the participant must indicate how much bowl, bladder, or pelvic symptoms have been bothering them in the past 3 months on a 4-point scale that ranges from "not at all" (0) to "quite a bit" (4). Total score for each subscale ranges from 0 to 100, with a higher score indicating worse distress. The sum of the 3 subscales are added together to get the PFDI-20 summary score, which ranges from 0 to 300, with a higher score indicating worse distress.

  • Change in Pelvic Floor Distress as Assessed by the Pelvic Floor Distress Inventory Questionnaire-20 (CRADI-8 subscale score)pre-transplant, post-treatment within weeks 11 to 12

    The Pelvic Floor Distress Inventory Questionnaire-20 (PFDI-20) is composed of 3 subscales: the Urinary Distress Inventory-6 (UDI-6), the Pelvic Organ Prolapse Distress Inventory-6 (POPDI-6), and the Colorectal-Anal Distress Inventory-8 (CRADI-8). For each question, the participant must indicate how much bowl, bladder, or pelvic symptoms have been bothering them in the past 3 months on a 4-point scale that ranges from "not at all" (0) to "quite a bit" (4). Total score for each subscale ranges from 0 to 100, with a higher score indicating worse distress. The sum of the 3 subscales are added together to get the PFDI-20 summary score, which ranges from 0 to 300, with a higher score indicating worse distress.

  • Change in symptoms and signs of constipation as assessed by score on the Patient Assessment of Constipation Symptoms (PAC-SYM) scalepre-transplant, post-treatment within weeks 11 to 12

    The PAC-SYM is a 12-item questionnaire that assesses abdominal, rectal, and stool symptoms, with each item scored from 0 (No symptoms) to 4 (Very severe symptoms), for a total score range of 0-48, with a higher score indicating worse constipation severity.

  • Change in Gastrointestinal Symptom Severity as Assessed by the Patient Assessment of Gastrointestinal Disorders-Symptom Severity Index (PAGI-SYM)pre-transplant, post-treatment within weeks 11 to 12

    Total score ranges from 0 (none or absent) to 5 (very severe), with a higher score indicating a worse outcome.

  • Number of participants who show an improvement in constipation and/or significant bloating symptoms as indicated by the stool diaryfrom baseline to end of study (week 12)
  • Change in gut transit times (assessed by Sitz markers and X-ray)pre-transplant, post-treatment within weeks 11 to 12