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C. Difficile and Ursodiol

A Clinical Trial for the Off Label Use of Ursodiol for the Prevention of Recurrent C. Difficile Colitis and Diarrhea

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02748616
Enrollment
9
Registered
2016-04-22
Start date
2017-03-01
Completion date
2020-01-31
Last updated
2022-01-11

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

Conditions

Diarrhea

Keywords

Colitis, Bile

Brief summary

In vitro findings have established that ursodeoxycholic acid is a surrogate for deoxycholic acid in preventing the growth of C. difficile, and interrupting recurrence. Investigators will administer ursodeoxycholic acid for two months, beginning with Metronidazole and/or Vancomycin (8 to 10 days), antibiotics currently used for the treatment of acute C.Difficile infection. Ursodeoxycholic acid prevents c.difficile recurrence by (a) directly suppressing the growth of C. Difficile and (b) permitting restoration of normal fecal bile acid composition (80% deoxycholic acid) to maintain growth suppression.

Detailed description

The non-investigational reference therapies, Metronidazole, Vancomycin and fidaxomicin , are FDA-approved antibiotics currently in use today because of their effectiveness in suppressing the growth of C. difficile and therefore quickly eliminating the colitis and diarrhea. However, they do not promote the restoration of the normal bacterial flora. Therefore, when medication is stopped, the C. difficile colitis returns. In vitro findings have established that ursodeoxycholic acid is a surrogate for deoxycholic acid in preventing the growth of C. difficile, and interrupting recurrence.

Interventions

Subjects will begin to take 300 mg Ursodiol 2 (two) weeks after Visit #1 for a total of 8 (eight) weeks.

Sponsors

NYU Langone Health
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Male and female patients with recurrent C. difficile colitis * 18 years of age and older * Capable of giving informed consent

Exclusion criteria

* Patients with other gastrointestinal problems prone to cause diarrhea if they cannot be controlled for the period of the study. Lactose intolerance or gluten enteropathy are not an exclusion provide that the potential subject is asymptomatic and can be expected to adhere to the appropriate dietary regimen. * Patients with contraindications to metronidazole or vancomycin and/or ursodiol tablets or components of the formulations. * Patients not available for long-term follow-up (2 months) by their physician will be excluded from the study.

Design outcomes

Primary

MeasureTime frame
Percent of Patients With Return Toward a Normal Fecal Bile Acid Pattern2 months

Countries

United States

Participant flow

Participants by arm

ArmCount
Ursodiol
Subjects will begin to take 300 mg Ursodiol following Visit #1 and continue for a total of 8 (eight) weeks. Ursodiol: Subjects will begin to take 300 mg Ursodiol 2 (two) weeks after Visit #1 for a total of 8 (eight) weeks.
9
Total9

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDid Not Complete Ursodial Course2
Overall StudyLost to Follow-up1
Overall StudyPhysician Decision2
Overall StudyWithdrawal by Subject2

Baseline characteristics

CharacteristicUrsodiol
Age, Continuous52 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants
Race (NIH/OMB)
White
2 Participants
Region of Enrollment
United States
9 participants
Sex: Female, Male
Female
4 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 2
other
Total, other adverse events
0 / 2
serious
Total, serious adverse events
0 / 2

Outcome results

Primary

Percent of Patients With Return Toward a Normal Fecal Bile Acid Pattern

Time frame: 2 months

ArmMeasureValue (NUMBER)
UrsodiolPercent of Patients With Return Toward a Normal Fecal Bile Acid Pattern100 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026