LMN-201 for Prevention of C. Difficile Infection Recurrence
Launched by LUMEN BIOSCIENCE, INC. · Apr 8, 2022
Trial Information
Current as of June 26, 2025
Recruiting
Keywords
ClinConnect Summary
This clinical trial is looking at a new medication called LMN-201, which aims to prevent the recurrence of Clostridioides difficile infection (CDI) in patients who have recently been diagnosed and are receiving standard antibiotic treatment. CDI is a type of infection that can cause severe diarrhea. The trial is currently recruiting participants who are 18 years or older, have been diagnosed with CDI within the last week, and are planning to start a course of antibiotics for up to 28 days.
To participate, individuals must be able to take oral medication and agree to follow the study's procedures. Participants will be closely monitored for how well they tolerate the medication and whether it helps prevent CDI from coming back. It’s important to know that certain individuals, like those with more severe forms of CDI or specific health conditions, may not qualify for the study. If you or someone you know is interested in this trial, it's a chance to help researchers understand if LMN-201 can make a difference in managing this infection.
Gender
ALL
Eligibility criteria
- Inclusion Criteria:
- • 1. Male or female, aged 18 or older.
- • 2. Diagnosis of CDI defined as a new or recent history of 3 or more bowel movements per day with a loose or watery consistency (Bristol Stool Scale 5, 6, or 7); a positive stool C. difficile toxin B immunoassay (stool collected no more than 7 days before first dose of LMN-201/placebo), and no other likely explanation for diarrhea. NOTE: Diarrhea is not required to be present on the day of enrollment.
- • 3. Provision of signed and dated informed consent form.
- • 4. Scheduled to receive or planning to receive a ≤28-day course of SOC antibiotic therapy for CDI. Participant must have been diagnosed with CDI for 7 or fewer days at time of initial study drug administration. SOC antibiotic therapy is defined as the receipt of oral fidaxomicin or oral metronidazole or oral vancomycin (see Section 8.2.6)
- • 5. May be on systemic antibiotics for an infection unrelated to the gastrointestinal tract.
- • 6. Ability to take oral medication and willingness to adhere to the study medication regimen.
- • 7. Stated willingness and ability to comply with all study procedures and availability for the duration of the study and investigator believes individual will complete the study.
- • 8. Access to a mobile smartphone.
- • 9. For females of reproductive potential: use of highly effective contraception for at least 4 weeks prior to screening and agreement to use such a method during study participation and for an additional 4 weeks after the end of study drug administration.
- • 10. For males of reproductive potential: agreement to use condoms or other methods to ensure effective contraception with partner during study participation and for an additional 4 weeks after the end of study drug administration.
- Exclusion Criteria:
- • 1. Fulminant C. difficile colitis.
- • 2. Admitted or expect to be admitted to an intensive care unit.
- • 3. Underlying gastrointestinal disorder characterized by diarrhea including but not limited to chronic ulcerative colitis, Crohn's disease, celiac sprue, short bowel syndrome, dumping syndrome following gastrectomy, pancreatic insufficiency, enteric parasitic infection, viral enteritis, bacterial enteritis (salmonella, shigella, ETEC, etc.).
- • 4. Neutropenia (absolute neutrophil count of \< 1000 per microliter for any reason).
- 5. Current or previous treatment in past 3 months with any therapy likely to influence the outcome of this study, including but not limited to the following:
- • 1. Bezlotoxumab (Zinplava, Merck \& Co.), or another antibody against C. difficile toxin(s)
- • 2. C. difficile vaccine
- • 3. SER-109 (Seres Therapeutics)
- • 4. CP101 (Finch Therapeutics)
- • 5. VE303 (Vedanta Therapeutics)
- • 6. Fecal microbiota transplant
- • 7. Current therapy with oral exchange resins
- • 8. Protracted exposure to mu-agonist opioids and/or anticholinergic medication prescribed for diarrheal symptoms (unable to stop mu-agonist opioid treatment unless on a stable dose as of onset of diarrhea and no increase in dose planned for the duration of the study.)
- • 6. Treatment with SOC antibiotic therapy is planned for longer than a 28-day period.
- • 7. Pregnancy, anticipated pregnancy, or breastfeeding.
- • 8. Inability or unwillingness to swallow numerous, relatively large capsules containing study drug or placebo because of a swallowing disorder or dysphagia.
- • 9. Inability to pass swallowed capsules into the distal small intestine because of gastroparesis, repetitive vomiting, or anatomic narrowing in the esophagus, stomach, or small intestine.
- • 10. Psychiatric illness that would affect compliance with medications, study capsules, or follow-up.
- • 11. Status as an inmate, residential mental health program, or residential substance abuse program.
- • 12. Terminal illness with limited life expectancy of less than 24 weeks.
- • 13. Poor concurrent medical risks with clinically significant co-morbid disease such that, in the opinion of the investigator, the patient should not be enrolled.
- • 14. Any other condition that, in the opinion of the investigator, would jeopardize the safety or rights of the individual, would make it unlikely for the individual to complete the study, or would confound the results of the study.
- • Note: Use of probiotics and other food supplements (e.g., yogurt, kefir, kimchi, etc.) are not exclusionary.
- • Note: Assuming participants meet all of the inclusion criteria and none of the exclusion criteria, participants with underlying malignancy with a good life expectancy in the study are not excluded.
About Lumen Bioscience, Inc.
Lumen Bioscience, Inc. is an innovative biotechnology company specializing in the development of therapeutic and diagnostic solutions leveraging its proprietary platform for producing biologics in engineered algae. Focused on addressing significant unmet medical needs, Lumen Bioscience harnesses the unique properties of microalgae to create safe and effective treatments, particularly in the fields of gastrointestinal diseases and infectious agents. Committed to advancing patient care through rigorous research and clinical trials, the company aims to transform the landscape of biopharmaceuticals with its sustainable and scalable production methods.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Bridgeport, Connecticut, United States
Houston, Texas, United States
Butte, Montana, United States
Los Angeles, California, United States
Minneapolis, Minnesota, United States
Hamden, Connecticut, United States
Omaha, Nebraska, United States
New York, New York, United States
Idaho Falls, Idaho, United States
Oak Lawn, Illinois, United States
Naples, Florida, United States
Mentor, Ohio, United States
Mount Airy, North Carolina, United States
Decatur, Georgia, United States
Burr Ridge, Illinois, United States
Lexington, Kentucky, United States
Annandale, Virginia, United States
Willoughby, Ohio, United States
Escondido, California, United States
Patients applied
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
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