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- Klinische proef NCT07627412
WMT for Recurrent Urinary Tract Infections (WMT-rUTI)
A Prospective, Single-Center, Single-Arm Clinical Study of Washed Microbiota Transplantation for Recurrent Urinary Tract Infections
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
This study evaluates WMT as an interventional treatment for rUTI. WMT preparation follows the Nanjing Consensus on Washed Microbiota Transplantation (Chin Med J, 2020). Donor stool is obtained from healthy screened donors and processed using the GenFMTer intelligent fecal microbiota separation system with repeated washing and strict quality control.
Patients will receive WMT via mid-gut TET or colonic TET for 2-3 sessions. Clinical assessments include UTI episode frequency, symptom severity, antibiotic usage, and adverse events. Microbiological assessments include urine routine and clean-catch midstream urine culture during acute episodes. Fecal and urine samples will be collected at baseline (before TET placement), 3 months, and 6 months post-WMT for 16S rRNA gene high-throughput sequencing to analyze gut and urinary microbiota composition, alpha/beta diversity, and donor colonization via SourceTracker.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 2
- Fase 1
Contacten en locaties
Studie Locaties
-
-
Jiangsu
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Nanjing, Jiangsu, China, 210011
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Age ≥18 years, both sexes.
- Meeting the diagnostic criteria for recurrent urinary tract infection: ≥2 symptomatic UTI episodes within 6 months or ≥3 episodes within 1 year.
- Planning to receive washed microbiota transplantation (WMT) treatment.
- Able to provide informed consent and comply with scheduled follow-up visits, examinations, and specimen collection.
Exclusion Criteria:
- Received antimicrobial therapy within 48 hours before WMT.
- Complicated UTI requiring surgical intervention, including urinary tract tumor, stricture, congenital malformation, or neurogenic bladder.
- Co-infection with other urogenital pathogens including fungi, viruses, Mycoplasma, or Chlamydia.
- Unable to tolerate gastroscopy or colonoscopy for TET tube placement.
- Severe comorbidities involving heart, liver, kidney, hematopoietic system, respiratory system, or endocrine system that may affect survival, or other serious diseases affecting survival.
- Pregnant or lactating women.
- Coexisting psychiatric disorders.
- Other conditions deemed unsuitable for enrollment by the investigator.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: WMT Treatment Group
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Participants will receive washed microbiota transplantation delivered via mid-gut transendoscopic enteral tubing (TET) or colonic TET for 2-3 times.
The WMT preparation follows the Nanjing Consensus on Washed Microbiota Transplantation (Chin Med J, 2020).
Donor fecal material is obtained from healthy screened donors and processed using the GenFMTer intelligent separation system with repeated washing and quality control.
The final microbiota suspension is transplanted into the mid-gut or colon through an indwelling TET tube.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Number of UTI recurrence episodes within 12 months post-WMT
Tijdsspanne: 12 month
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Total number of symptomatic UTI episodes during the 12-month follow-up period after the first WMT session.
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12 month
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Number of UTI recurrence episodes within 6 months post-WMT
Tijdsspanne: 6 months
|
Total number of symptomatic UTI episodes during the 6-month follow-up period.
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6 months
|
|
Clinical manifestations during acute episodes
Tijdsspanne: Up to 12 months
|
Clinical symptoms (dysuria, frequency, urgency, hematuria, etc.) and antibiotic usage during acute UTI episodes in the follow-up period.
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Up to 12 months
|
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Urine routine and culture during acute episodes
Tijdsspanne: Up to 12 months
|
Urine leukocyte count, bacterial count, leukocyte esterase, nitrite test, and clean-catch midstream urine culture with colony count during acute UTI episodes.
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Up to 12 months
|
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Incidence of adverse events
Tijdsspanne: Up to 12 months
|
Incidence, severity, and causality of adverse events related to WMT procedure (e.g., abdominal discomfort, diarrhea, fever) and during follow-up.
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Up to 12 months
|
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Efficacy assessment rate
Tijdsspanne: 12 months
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Effective: ≤2 UTI episodes within 12 months post-WMT or ≥50% reduction compared to baseline.
Ineffective: ≥3 episodes and <50% reduction.
Overall effective rate = (effective cases / total cases) × 100%.
Subgroups include simple rUTI, complicated rUTI, premenopausal, postmenopausal, catheter-related, type 2 diabetes with rUTI, and upper urinary tract stone with rUTI.
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12 months
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Medewerkers en onderzoekers
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- WMT-rUTI-2022
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
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