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Intestinal Microbiome Transplant in ALS

A Pilot Trial to Investigate the Safety and Efficacy of Intestinal Microbiome Transplant (MTT) in People With Amyotrophic Lateral Sclerosis

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07017946
Enrollment
20
Registered
2025-06-12
Start date
2026-01-27
Completion date
2026-11-01
Last updated
2026-07-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amyotrophic Lateral Sclerosis ALS

Brief summary

This is a 24-week study of intestinal microbiome transplant in people with ALS. All participants will be evaluated clinically in person for 4 visits. Blood and mailed/ fresh stool samples will also be collected. Blood samples will be used to determine changes in neurofilament light chain over time. Stool samples will be processed for microbiome analysis. Participants will have phone visits to further evaluate safety and tolerability. They will then undergo antibiotic conditioning and a standard bowel preparation before being assigned to the investigational product, MTP-101C .

Detailed description

This is a 24-week Phase I/II study of MTT in people with Amyotrophic Lateral Sclerosis. All participants will be evaluated clinically in person at weeks 0, 4, 12, and 24 visits. Blood and mailed/ fresh stool samples will be collected at weeks 0, 4, 8, 12, and 24. Blood samples will be used to determine changes in neurofilament light chain over time. Stool samples from weeks 0, 4,8, 12, and 24 will be processed by molecular methods (metagenomics and metatranscriptomics) for microbiome analysis. Participants will also have phone visits at weeks 1, 8, 16, and 20, which will be used to further evaluate safety and tolerability and the ALSFRS-R score. Participants will first undergo antibiotic conditioning with oral vancomycin 250 mg twice daily for 10 days. Neomycin 500 mg twice daily will be added to the last 3 days of vancomycin. This will be followed by ingestion of a standard bowel preparation with magnesium citrate. Participants will then ingest 2 capsules of MTP-101C daily for 3 days, then 1 capsule of MTP-101C daily for 8 weeks. All participants will be assigned to the investigational product.

Interventions

MTP-101C is a freeze-dried encapsulated formulation of fecal microbiota purified from the stool of healthy donors.

Sponsors

Duke University
Lead SponsorOTHER
University of Minnesota
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

All participants receive the investigational product.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of ALS according to Gold Coast Criteria * Age: 18+ years at enrollment * Fast-progressing (ALSFRS-R change of at least 1.5 points per month between last 2 measurements at screening) * Modestly but not severely affected (ALSFRS-R score at or above 24 at screening) * Able to swallow capsules and expected to be able to for the duration of the trial (ALSFRS-R "swallowing" score of 3 or 4 at screening) * Expected to survive for the duration of the trial * Taking any combination of riluzole, edaravone, and/or tofersen at a stable dose for 30 days prior to screening, or not taking any of these and not expected to during the study. * Capable of giving written consent. * If sexually active, must agree to use contraceptive or abstinence for duration of treatment. * Females of child-bearing age must have negative pregnancy test at screening.

Exclusion criteria

* Concurrent illness or laboratory abnormalities that could confound the measurement of ALS progression or the microbiome or interfere with the ability to complete the study. * Taking probiotics, nutraceuticals, or herbal remedies within 2 weeks of screening * Taking antibiotics within 3 months of screening. * Taking any investigational study drug within 30 days of screening or five half-lives of the prior agent. * Previous exposure to MTT. * Pregnancy. * Known specific food allergy with anaphylaxis * Other co-morbid conditions that, in the opinion of the study investigator, place the participant at increased risk of complications, interfere with study participation or compliance, or confound study objectives.

Design outcomes

Primary

MeasureTime frameDescription
ALS Functional Rating Scale, Revised (ALSFRS-R)Weeks 0, 4, 8, 12, 16, 20 and 24The ALSFRS-R is a quickly administered (five minute) ordinal rating scale (ratings 0-4) used to determine patients' assessments of their capability and independence in 12 functional activities. The total score ranges from 0 to 48, where higher scores indicate better function.
ALS Quality of Life (ALSAQ-5)Weeks 0, 4, 12, and 24The overall ALSAQ-5 score ranges from 0 (best imaginable health state) to 100 (worst imaginable health state).
Neurofilament Light Chain levelsWeeks 0, 4, 12 and 24Neurofilament light chain levels are elevated in the spinal fluid and the blood of patients with ALS and other neurodegenerative diseases, and higher levels predict more severe disease progression.
The Gastrointestinal Symptom Rating Scale (GSRS)Weeks 0, 4, 12, and 24The Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire that can be used weekly to assess the severity of gastrointestinal symptoms experienced over the past week. The GSRS is designed to evaluate symptoms associated with common gastrointestinal disorders, such as reflux, abdominal pain, indigestion, diarrhea, and constipation. The questionnaire uses a seven-point Likert-type scale, with 1 representing no symptoms and 7 representing very troublesome symptoms. Higher scores on the subscales indicate more discomfort.

Secondary

MeasureTime frameDescription
Microbiome compositionScreening/Baseline, Week 4, Week 12, and Week 24Participants will also be sent collection kits to collect intestinal samples and return by mail. Data analyses will be performed to study the microbiome composition before and during the intervention.

Countries

United States

Contacts

CONTACTRichard Bedlack, MD, PhD
ALSresearch@duke.edu919-613-2681
CONTACTMichelle Ward, RN
ALSresearch@duke.edu919-613-2681
PRINCIPAL_INVESTIGATORRichard Bedlack, MD, PhD

Duke University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 9, 2026