FMT vs antibiotics: which works better Long-Term for c. diff?
NCT ID NCT07569380
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at adults who had a C. diff infection and were treated with either a fecal transplant (FMT) or antibiotics alone. Researchers want to see if FMT leads to healthier gut bacteria and fewer health problems years later. Participants will give blood, stool, and urine samples and fill out questionnaires at one visit.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 250 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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May 2031
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients that within the study period (2016-2024) have received treatment (antibiotic-only or FMT) at Umeå University Hospital.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults aged 18 years or older * Symptomatic, microbiologically verified index CDI from February 1 2016 to December 31 2024 * Having received CDI treatment at Umeå University Hospital (antibiotic-only or FMT) Exclusion Criteria: * Age below 18 years at follow-up * Index CDI diagnosis not meeting ESCMID case definition * Testing positive for another gastrointestinal pathogen (virus/bacteria) that is more plausible to explain the clinical picture at index CDI episode * Declines participation
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Umeå University Hospital
Umeå, Sweden
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New drug combo shows promise against deadly gut infection