Cette page a été traduite automatiquement et l'exactitude de la traduction n'est pas garantie. Veuillez vous référer au version anglaise pour un texte source.

FMT for MS Patients (MS-FMT)

24 octobre 2022 mis à jour par: Michael Silverman, MD, Lawson Health Research Institute

Fecal Microbial Transplantation for Relapsing Multiple Sclerosis Patients - a Placebo-controlled, Double-blinded, Randomized Trial

This is a placebo-controlled, double-blinded, randomized trial design, whereby all patients are eligible to start an injectable therapy, and then randomized to either placebo or FMT for approximately 1 year.

Aperçu de l'étude

Statut

Pas encore de recrutement

Les conditions

Description détaillée

Fecal Microbiome Transplants: Patients will undergo pretreatment with Amoxicillin/Clavulinate (or matched placebo) for 5 days followed by a bowel cleanse with PEGLYTE. Patients will undergo allogeneic or autologous fecal transplants. Patients will be dosed with FMT oral capsules approximately 48 hours after antibiotic treatment has stopped. Following the FMT capsule treatment on day 1, patients will be administered a repeat oral capsule or placebo dose at 3 weeks. Oral omeprazole or omeprazole placebo will be given 1 hour prior to the baseline and 3 week dose. This will be done to ensure full engraftment of the transplant.

Participants will be seen at baseline, 3 weeks, 6 weeks, 3 months, 6 months and 12 months. A series of neurological tests will be performed for safety measures. In addition to this, MRIs will be completed at baseline, 6 weeks and 12 months. Blood, urine and stool samples will also be collected for data analysis and safety measures.

Type d'étude

Interventionnel

Inscription (Anticipé)

34

Phase

  • Phase 2

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans à 55 ans (Adulte)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • 18 - 55 years of age
  • Have an expanded disability status scale (EDSS) of < 6
  • Have a diagnosis of relapsing multiple sclerosis
  • Have evidence of radiographic activity within the 12 months on MRI (new/enlarging T2 lesion or gadolinium enhancing lesion)
  • Eligible to start/starting an injectable DMT
  • Not on a DMT currently and/or not on a DMT in last 6 months
  • Ability to swallow capsules

Exclusion Criteria:

  • Unable to provide informed consent
  • Does not pass the standard MRI screening questionnaire
  • Other disease that can affect GI permeability (such as Inflammatory Bowel Disease, Crohn's disease, ulcerative colitis, indeterminate colitis or microscopic colitis, celiac disease)
  • Expected requirement for antibiotics within 3 months (chronic suppressive therapies, elective prosthetic joint insertion)
  • Toxic megacolon, small bowel ileus
  • Penicillin allergy
  • Omeprazole allergy

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Science basique
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Double

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur placebo: Autologous Transplants
Healthy donor stool will be processed and placed into capsules.
Participants stool will be processed and placed into capsules.
Comparateur actif: Allogeneic Transplants
Healthy donor stool will be processed and placed into capsules.
Participants stool will be processed and placed into capsules.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Changes in T2 Lesions - MRI
Délai: Baseline, 6 weeks, 12 months
Assess the number of new/enlarging/gad enhancing T2 lesions. We will be comparing baseline to 6 weeks and 6 weeks to 12 months.
Baseline, 6 weeks, 12 months

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Blood Brain Barrier - MRI
Délai: Baseline, 6 weeks, 12 months
We will assess the integrity of the blood brain barrier through MRI from baseline to 6 weeks and 6 weeks to 12 months.
Baseline, 6 weeks, 12 months
Neurofilament Light Serum Levels
Délai: Baseline, 6 weeks, 3 months, 12 months

As a biomarker of neuronal damage neurofilament light chain levels will be detected. Peripheral blood will be collected in appropriate tubes at baseline, 6 weeks, 3 months and 12 months and processed for serum.

Once collected all samples will be sent to the University of Ottawa where a Simoa NfL assay will be undertaken on their Simoa Analyzer.

Patients with multiple sclerosis have been shown to have increased intestinal permeability, likely due to a reduction in butyrate-producing bacteria. A decrease in butyrate producing bacteria has been shown to be associated with increased intestinal permeability. Relapsing-remitting MS patients have been shown to have increased intestinal permeability, which may allow dietary and microbial antigens from the intestinal lumen to pass into the blood stream and cause autoimmune responses in MS patients. This may prime the immune system to develop a humoral response to certain bacteria.

Baseline, 6 weeks, 3 months, 12 months
Intestinal Permeability
Délai: Baseline, 6 weeks, 12 months
Small Intestine Permeability: Mannitol/Lactulose administration will be used and urine will be collected to measure small intestine permeability. For small intestine permeability patients will be instructed to drink lactulose solution and collect the urine throughout the night and first thing in the morning. A proper collecting bottle will be provided. Once the urine sample bottle reaches the laboratory University Hospital the total volume will be measured and an aliquot of 30mL total, 10mL in each sterile urine container (no other additives) will be separated and stored at -20C and sent on dry ice to Dr. Meddings laboratory at Calgary, Alberta. All biological material will be transported according to biosafety regulations.
Baseline, 6 weeks, 12 months
IgA Microbiota
Délai: Baseline, 3 weeks, 6 weeks, and 12 months
IgA Microbiota analysis: IgA bound bacteria will be detected and sorted (magnetic beads or flow cytometry) using anti-IgA (pan-IgA, detect monomer and secreted multimer (Miltenyi clone: IS11-8E10). Sorted IgA bound bacteria will be stored, and the DNA extracted in one batch at the end of the study. Changes in the composition of IgA bound bacteria for each patient will be determined using the previously mentioned methods. (Rojas, et al. 2018; Planer, et al. 2016)
Baseline, 3 weeks, 6 weeks, and 12 months
Stool Microbiome
Délai: Baseline, 3 weeks, 6 weeks, 3 months, 6 months, 12 months
Gut microbiota analysis before and after FMT: Toilet paper samples will be collected from patients' at baseline and 1-2 days before each scheduled appointment (Al et al. 2018). Patients will store the toilet paper inside of DNA free plastic bags and keep them at 4 °C in the refrigerator until the time of their appointment (alternatively, the samples can be mailed in to the lab, but one method must be chosen for all of the samples collected). Toilet paper samples will be collected from the FMT donor every time they drop off a stool sample for donation. DNA from the toilet paper samples will be extracted in one batch at the end of the study and sent for Illumina Mi-Seq next-generation sequencing of the V4 region of the 16S rRNA gene. Changes in the composition of gut bacteria will be determined using custom R scripts.
Baseline, 3 weeks, 6 weeks, 3 months, 6 months, 12 months
Metabolomics
Délai: Baseline, 3 weeks, 6 weeks, 3 months, 6 months, 12 months
Metabolomics: Serum will be collected for metabolomic analysis. Metabolomics can be used to identify biomarkers of MS and may provide us with information about which patients are more likely to respond to FMT therapy. Butyrate producing bacteria have been shown to be in lower relative abundance in MS patients and concentrations of short-chain fatty acids in stool and will be investigated before and after FMT.
Baseline, 3 weeks, 6 weeks, 3 months, 6 months, 12 months
Metabolomics
Délai: Baseline, 3 weeks, 6 weeks, 3 months, 6 months, 12 months
Metabolomics: Urine will be collected for metabolomic analysis. Metabolomics can be used to identify biomarkers of MS and may provide us with information about which patients are more likely to respond to FMT therapy. Butyrate producing bacteria have been shown to be in lower relative abundance in MS patients and concentrations of short-chain fatty acids in stool and will be investigated before and after FMT.
Baseline, 3 weeks, 6 weeks, 3 months, 6 months, 12 months

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Anticipé)

1 juin 2023

Achèvement primaire (Anticipé)

1 mai 2025

Achèvement de l'étude (Anticipé)

1 août 2025

Dates d'inscription aux études

Première soumission

11 octobre 2019

Première soumission répondant aux critères de contrôle qualité

1 novembre 2019

Première publication (Réel)

4 novembre 2019

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

25 octobre 2022

Dernière mise à jour soumise répondant aux critères de contrôle qualité

24 octobre 2022

Dernière vérification

1 octobre 2022

Plus d'information

Termes liés à cette étude

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

S'abonner