MTC Versus FMT in for RCDI

Official title

Comparison of MTC01 vs FMT for the Treatment of Recurrent Clostridioides Difficile Infection

Overview

Investigating four different treatment of MTC or FMT

Detailed description

The purpose of this research study is to compare two different treatments for patients with recurrent Clostridiodies difficile infections: MTC01 vs fecal microbiota transplantation (FMT). FMT is the transfer of bacteria from a healthy donor's colon to a recipient's colon. To do this, stool from a healthy donor is blended with salt water and made into a liquid solution rich in bacteria. This solution is sprayed into the recipient's colon during a colonoscopy. This treatment is now considered standard medical care for recurrent Clostridioides difficile infections.

One FMT dose contains the entire collection of microbes in a healthy donor and is made up of billions of microbes. Each dose of FMT is different from the next and it is unknown exactly what microbes are present in each dose.

Interventions

• Drug MTC 01
  Slurry to be administered via colonoscopy
• Drug Fecal Microbiota Transplantation (FMT)
  Stool from a healthy donor is blended with salt water and made into a liquid solution rich in bacteria. This solution is sprayed into the recipient's colon during a colonoscopy

Primary outcome measures

• Number of treatment-related serious adverse events (SAE) as assessed by NIH grading [Time frame: up to 24 weeks]
• Number of participants with treatment-related adverse events as assessed by CTCAE 5.0 [Time frame: up to 24 weeks]

Secondary outcome measures (1)

• Percent of patients who develop Clostridioides difficile (C difficile) [Time frame: within 8 weeks]

Eligibility criteria

Inclusion criteria

• Ages eligible for study: 18 years and older
• Able and willing to provide written informed consent
• History of recurrent CDI defined as 2 episodes of CDI occurring within the previous 6 months (inclusive of the current episode)
• Subjects with a qualifying recurrent CDI episode, defined as:

• History of diarrhea (>=3 unformed stools per day for 2 or more consecutive days that is clinically consistent with CDI
• Documented positive stool test by local laboratory for toxigenic C. difficile (toxin EIA or PCR-based testing) for the current CDI episode within 60 days prior to randomization.
• Received a course of standard-of-care (SOC) CDI antibiotics for the most recent CDI episode (for 10 to 42 days, with exact duration, antibiotic type and dose at the discretion of the Investigator)
• Demonstrated adequate clinical response, defined as <= 3 unformed stools per day for 2 or more consecutive days during SOC CDI antibiotics prior to randomization.
• CDI symptoms started within 60 days prior to randomization.

Exclusion criteria

• Female subjects who are pregnant or breastfeeding or are planning to become pregnant during the study.
• Women with reproductive potential should use a reliable method of birth control:

• Consistent use of an approved hormonal contraception (birth control pill/patches, rings); An intrauterine device (IUD); Contraceptive injection (Depo-Provera); Double barrier methods (Diaphragm with spermicidal gel or condoms with contraceptive foam); Sexual abstinence (no sexual intercourse) or Sterilization
• Known or suspected toxic megacolon, ileus or bowel obstruction at the time of enrollment.
• Subjects with active gastroenteritis due to infectious causes other than CDI
• Subjects with allergies to ingredients present in the investigational product
• Prior participation in studies of investigational live biotherapeutic products or FMT within the last 6 months.
• Major gastrointestinal surgery within the last 3 months before enrollment.
• Use of drugs that alter gut motility.
• History of acute leukemia or hematopoietic stem cell transplantation or myelosuppressive chemotherapy within 2 months prior to enrollment.
• Unable or unwilling to undergo a colonoscopy
• Inpatient status, though patients can be screened while inpatients, the must be outpatient for the planned colonoscopy.
• Anticipated immediate or upcoming surgery within 30 days
• Need for continued non-anti-CDI antibiotic therapy
• History of total proctocolectomy
• Patients who are unable to give informed consent
• Participation in a clinical trial in the preceding 30 days or simultaneously during this trial
• Severe food allergy (anaphylaxis or anaphylactoid-like reaction)
• Life expectancy < 6 months
• Unable to adhere to protocol requirements
• Patient who have received an FMT in the past year
• Any condition that the physician investigators deems unsafe, including other conditions or medications that the investigator determines that it will put the subject at greater risk from FMT
• Clinically significant abnormal lab values including but not limited to WBC >15 x 103/mm3, ANC <0.5 x 103/mm3, or laboratory evidence of acute kidney injury at Investigator's discretion, at screening
• If a patient is heavily immunosuppressed and is negative for CMV or EBV

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation

Randomized

Model

Parallel assignment

Masking

Open label

Primary purpose

Prevention

Study locations

United States · 1 center

• Icahn School of Medicine at Mount Sinai — New York

Publications

• Bethlehem L, Bartu L, Marke G, Mar P, Feldman S, Eggers J, Ruprecht C, Britton GJ, Aggarwala V, Bongers G, Li Z, Yang N, Hohmann EL, Mogno I, Faith JJ, Grinspan A. 15-strain live biotherapeutic product or same donor fecal microbiota transplant for recurrent Clostridioides difficile infection: a randomized phase 1b trial. Nat Med. 2026 Jul;32(7):2546-2555. doi: 10.1038/s41591-026-04442-2. Epub 2026 PMID 42230754

Identifiers

NCT: NCT05911997 · STUDY-23-00563 · 1R01DK130337-01A1

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗