- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Inscription (Réel)
Phase
- Phase 2
- La phase 1
Contacts et emplacements
Lieux d'étude
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Jiangsu
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Nanjing, Jiangsu, Chine, 210011
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
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.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: 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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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Number of UTI recurrence episodes within 12 months post-WMT
Délai: 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
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Number of UTI recurrence episodes within 6 months post-WMT
Délai: 6 months
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Total number of symptomatic UTI episodes during the 6-month follow-up period.
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6 months
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Clinical manifestations during acute episodes
Délai: Up to 12 months
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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
Délai: Up to 12 months
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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
Délai: Up to 12 months
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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
Délai: 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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Collaborateurs et enquêteurs
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- WMT-rUTI-2022
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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