An observational study in Clostridium Difficile Infection, sponsored by Emory University. Suspended at 3 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-28.
Sponsored by Emory University · Observational
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Among 121 studies in Clostridium Infections with a site in United States — 16 open to participants now, 19 under way, 3 of them phase 3. Clostridium Infections · United States.
Among the 121 studies in Clostridium Infections with a site in United States, this one is the 6th largest by planned enrollment of the 19 observational ones that give a count, is one of 9 that started in 2018, is one of 19 observational ones, and was the 59th registered.
251 studies on the registry are indexed under Clostridium Infections; 51 are open to participants now.
Browse Clostridium Infections studies →16 of the 121 studies in Clostridium Infections with a site in United States are open now. Recruiting first, the newest first:
National Institute of Allergy and Infectious Diseases (NIAID) · Sites in United States
Ages 18–75 · Healthy volunteers
Acurx Pharmaceuticals Inc. · Sites in United States
Ages 18–90
Medical College of Wisconsin · Sites in United States
Ages 18+
University of Michigan · Sites in United States
Ages 18+
AstraZeneca · Sites in United States, Australia, Canada and 11 more countries
Ages 18+
A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →
Of the 36 Clostridium Infections studies recruiting now, 22 (61%) set no upper age limit and 8 (22%) stop at 75 or younger; 9 take children under 18; 3 take healthy volunteers.
This study: 18 Years and older · all sexes · no healthy volunteers.
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121 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 21 · Phase 2 40 · Phase 3 21 · Phase 4 14
First in 1998; this study’s year is marked. 9 started in 2018.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 200 is below the median of 226 across 52 observational studies indexed under Clostridium Infections.
Median enrollment 57 across the 102 interventional studies, 132 across the 19 observational. Of the 91 that completed or were terminated, 52 (57%) have results posted.
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48 of 121 have an industry lead sponsor. The 10 most frequent:
Emory University is the lead sponsor of 1,405 studies on the registry; 223 are open to participants now.
Of its 238 completed or terminated interventional studies of FDA-regulated products, 178 (75%) have results posted.
Emory University has 1 study filed under Clostridium Infections — fewer than ten, so there is no comparison to draw.
7 of the studies in Clostridium Infections with a site in United States that are under way reach primary completion within a year, 2 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07221370Phase 3Riverside University Health System Medical CenterEnteral Vancomycin as Primary Prophylaxis Against Clostridioides Difficile Infection in Critically Ill Patients | 2026-12-31 |
| NCT06237452Phase 3Vedanta Biosciences, Inc.VE303 for Prevention of Recurrent Clostridioides Difficile Infection | 2027-06 |
| NCT04305769University of VirginiaAlanyl-glutamine Supplementation for C. Difficile Treatment (ACT) | 2026-12-31 |
| NCT07250724Bactolife A/SC. Difficile Toxin Levels in Stool From Healthy Individuals Following Standard of Care Antibiotic Treatment for CDI. | 2027-01-15 |
| NCT07285213AstraZenecaPrevention of Recurrent C. Difficile Infection Study With AZD5148 Monoclonal Antibody | 2027-04-20 |
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Among the 121 studies in Clostridium Infections with a site in United States, from their registry updates:
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The goal of this study is to rapidly identify subjects who are eligible for the Microbiota Enrichment Program (MEP) at Emory in Atlanta, Georgia. This general screening protocol will be used to screen potential subjects for the Emory MEP and will be conducted at the Emory Clinic, the Hope Clinic of the Emory Vaccine Center and/or Emory affiliated hospitals. An electronic database will be created to capture demographic and medical information about individuals who are reaching out to obtain fecal microbiota transplant (FMT) and pre-screen these potential study participants for current and upcoming studies within MEP.
The unintended consequence of the development of life-saving antimicrobial therapies has been the havoc that is wreaked on the patient's intestinal microbiota. Clostridium difficile infection (CDI) has been found to be the causative agent of 15%-25% of all cases of antibiotic-associated diarrhea, with increasing severity in those with advanced age and who are hospitalized for other reasons. Despite resolution of symptoms in patients treated with antimicrobials, there remains an \~20% CDI recurrence rate. Furthermore, patients who experience a first recurrence have a 40% risk of an additional recurrence and those with two or more episodes face a 60% risk. As a result, there are substantial numbers of patients who live with chronic and debilitating diarrhea from CDI despite repeated courses of prolonged therapy. C. difficile infection represents an important clinical syndrome and development of new preventive and therapeutic strategies are a key unmet medical need.
Fecal microbiota transplant (FMT), which is defined as the transfer of the feces from one individual (donor) into another individual (recipient), has recently become more standardized and acceptable for the treatment of C. difficile. The first randomized controlled trial (RCT) was published in January of 2013 and compared duodenal infusion FMT after oral vancomycin as compared to oral vancomycin alone and for the treatment of recurrent C. difficile. The trial showed excellent efficacy for FMT, along with restoration of the diversity of the microbiota in the recipients. Even prior to this RCT, case series with over 200 patients had shown excellent efficacy with one FMT, with rates of success almost to 90% when patients received two FMTs.
Emory's Fecal Transplant Program was started in 2012, and since then has performed 280 FMTs in inpatient and outpatient settings. The Emory Microbiota Enrichment Program (MEP) came into existence in 2016 in order to provide a clinical research infrastructure to recruit subjects into clinical research studies related to the microbiome. The goal of this protocol is to create an electronic database capture with a survey to capture demographic and medical information about subjects reaching out to obtain FMT for a variety of reasons and, if needed, pre-screen these subjects for current and upcoming protocols within MEP. A list of potential participants will be generated using the Emory University Data Warehouse to identify subjects with CDI and other conditions that could benefit from the Emory MEP. Advertisements will be placed in the community as a recruitment tool and individuals that contact Emory will be connected to the study recruiter. The recruiters will review the eligibility criteria for inclusion in the MEP database as well as the inclusion and exclusion criteria for all of the enrolling FMT studies currently underway at the Hope Clinic and Emory University Hospitals. If the subject meets the inclusion criteria for one of the Emory FMT studies, they will be invited for a general screening visit or a study specific screening visit for a specific MEP protocol.
The duration of the study varies for each subject and participation is indefinite unless one of the following occurs:
Recruitment for this study will be done using Emory's data warehouse, subjects with a diagnosis of Clostridium difficile infection (CDI), or subjects that contact Emory with interest in FMT, as well as through referrals from local doctor's offices, and subjects who self-refer to the Emory Microbiota Enrichment Program (MEP)
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Seeking services that are affiliated with the Emory Microbiota Enrichment Program (MEP) for any reason, such as:
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients who are seeking a fecal microbiota transplant (FMT), for any reason, who will be part of a registry of patients to potentially screen for a FMT study.
Other: Microbiota Enrichment Program (MEP)
Registry participants will provide demographic and medical information and may take part in general screening procedures to facilitate enrolling into an appropriate FMT study. Once determined to be eligible for study entry, study-specific screening procedures may include: * Health history and physical examination * Urinalysis * Urine or serum pregnancy test * Blood tests for Hepatitis B, Hepatitis C, HIV, chemistry panel (which includes liver function, kidney function), complete blood count with differential, platelet count, partial thromboplastin time (PTT), international normalized ratio (INR) * Electrocardiogram (EKG or ECG) * Stool studies Participants will be re-screened every 6 months and will remain in follow-up indefinitely or until they are rendered ineligible, participate in a MEP study, or withdraw consent to be included in the database.
To determine if the creation of a database will improve enrollment onto other research studies
Successful creation of the database will be defined as capturing demographic and medical information about persons reaching out to obtain FMT in order to screen them for current and upcoming protocols within MEP.
Time frame: Ten years
Started Sep 2018 (actual). Primary completion is estimated for Jan 2028, 112 months after the start.
How these figures are worked out, and which studies are left out of them.
This study is suspended, as verified in May 2026. You cannot join it, but the record below documents what was studied.
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