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Efficacy, Safety, And Pharmacokinetics Of Rifaximin In Subjects With Severe Hepatic Impairment And Hepatic Encephalopathy

A Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial To Evaluate The Efficacy, Safety, And Pharmacokinetics Of Rifaximin 550 Mg In Subjects With Severe Hepatic Impairment And Overt Hepatic Encephalopathy

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01846663
Enrollment
6
Registered
2013-05-03
Start date
2013-04-03
Completion date
2016-02-22
Last updated
2024-01-09

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

Conditions

Hepatic Encephalopathy

Keywords

Hepatic Encephalopathy, Liver Failure, Hepatic Insufficiency, Liver Diseases, Brain Diseases, Rifaximin, Cirrhosis

Brief summary

The purpose of the study is to evaluate the safety of Rifaximin or placebo in subjects with severe hepatic impairment and Hepatic Encephalopathy.

Interventions

DRUGPlacebo

Placebo, oral, 0 mg BID, 6 months of treatment

DRUGRifaximin

Rifaximin, oral, 550 mg BID, 6 months treatment

Sponsors

Bausch Health Americas, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Male or non-pregnant, non-breast feeding female ≥ 18 years old * In remission from demonstrated overt HE * Had ≥1 episode of overt HE associated with liver disease within the last 6 months * MELD score of ≥ 19 * Has a close family member or other personal contact who is familiar with the subject's HE, can provide continuing oversight to the subject and is willing to be available to the subject during the conduct of the trial

Exclusion criteria

* HIV * History of tuberculosis infection * Chronic respiratory insufficiency * Current infection and receiving antibiotics * Renal insufficiency requiring dialysis * Active spontaneous bacterial peritonitis infection * Intestinal obstruction or has inflammatory bowel disease * Active malignancy within the last 5 years * Current GI bleeding or has had a GI hemorrhage within past 3 months * Anemia

Design outcomes

Primary

MeasureTime frame
Proportion of Participants With Hepatic Encephalopathy (HE) Breakthrough Episode6 Months

Secondary

MeasureTime frame
Proportion of Participants With HE-related Hospitalization6 Months

Countries

United States

Participant flow

Participants by arm

ArmCount
Rifaximin
Rifaximin, oral, 550 mg BID, 6 months of treatment Rifaximin: Rifaximin, oral, 550 mg BID, 6 months treatment
3
Placebo
Placebo, oral, 0 mg BID, 6 months of treatment Placebo: Placebo, oral, 0 mg BID, 6 months of treatment
3
Total6

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event12
Overall StudyHepatic encephalopathy breakthrough10
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicRifaximinPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants1 Participants1 Participants
Age, Categorical
Between 18 and 65 years
3 Participants2 Participants5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
3 Participants0 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants3 Participants3 Participants
Sex: Female, Male
Female
1 Participants2 Participants3 Participants
Sex: Female, Male
Male
2 Participants1 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
2 / 31 / 3
other
Total, other adverse events
2 / 33 / 3
serious
Total, serious adverse events
3 / 31 / 3

Outcome results

Primary

Proportion of Participants With Hepatic Encephalopathy (HE) Breakthrough Episode

Time frame: 6 Months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RifaximinProportion of Participants With Hepatic Encephalopathy (HE) Breakthrough Episode1 Participants
PlaceboProportion of Participants With Hepatic Encephalopathy (HE) Breakthrough Episode1 Participants
Secondary

Proportion of Participants With HE-related Hospitalization

Time frame: 6 Months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RifaximinProportion of Participants With HE-related Hospitalization1 Participants
PlaceboProportion of Participants With HE-related Hospitalization1 Participants

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