Trial Outcomes & Findings for One Year Study of Rifaximin Delayed Release (DR) in Crohn's Disease (NCT NCT02240108)

NCT ID: NCT02240108

Last Updated: 2019-09-10

Results Overview

Clinical symptom remission defined by (1) the total number of liquid/very soft stools for the 7 days prior to the Week 16 visit being less than or equal to (≤) 10 (from CDAI Item 1). CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

81 participants

Primary outcome timeframe

Week 16

Results posted on

2019-09-10

Participant Flow

A total of 81 participants were enrolled and randomized in this study.

Participants were randomized in a 1:1 allocation to Rifaximin EIR 800 mg or Placebo at the beginning of the treatment period and were maintained on that treatment assignment for 16 weeks, followed by an open-label long-term active treatment extension of an additional 36 weeks.

Participant milestones

Participant milestones
Measure
Rifaximin EIR 800 mg
Participants received rifaximin extended intestinal release (EIR) 400 milligrams (mg) tablets orally twice daily for 52 weeks.
Placebo
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Overall Study
STARTED
35
46
Overall Study
Intent-to-treat (ITT) Population
35
45
Overall Study
COMPLETED
21
21
Overall Study
NOT COMPLETED
14
25

Reasons for withdrawal

Reasons for withdrawal
Measure
Rifaximin EIR 800 mg
Participants received rifaximin extended intestinal release (EIR) 400 milligrams (mg) tablets orally twice daily for 52 weeks.
Placebo
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Overall Study
Other than specified
8
6
Overall Study
Adverse Event
1
9
Overall Study
Pregnancy
1
0
Overall Study
Withdrawal by Subject
4
9
Overall Study
StudyTerminated by Sponsor
0
1

Baseline Characteristics

One Year Study of Rifaximin Delayed Release (DR) in Crohn's Disease

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Total
n=80 Participants
Total of all reporting groups
Age, Continuous
43.5 years
STANDARD_DEVIATION 14.85 • n=5 Participants
43.2 years
STANDARD_DEVIATION 12.97 • n=7 Participants
43.3 years
STANDARD_DEVIATION 13.73 • n=5 Participants
Sex: Female, Male
Female
19 Participants
n=5 Participants
24 Participants
n=7 Participants
43 Participants
n=5 Participants
Sex: Female, Male
Male
16 Participants
n=5 Participants
21 Participants
n=7 Participants
37 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=5 Participants
7 Participants
n=7 Participants
11 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
31 Participants
n=5 Participants
38 Participants
n=7 Participants
69 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
4 Participants
n=5 Participants
4 Participants
n=7 Participants
8 Participants
n=5 Participants
Race (NIH/OMB)
White
29 Participants
n=5 Participants
38 Participants
n=7 Participants
67 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Crohn's Disease Activity Index (CDAI) Score
305.4 units on a scale
STANDARD_DEVIATION 69.51 • n=5 Participants
300.0 units on a scale
STANDARD_DEVIATION 56.39 • n=7 Participants
302.4 units on a scale
STANDARD_DEVIATION 62.11 • n=5 Participants
Simple Endoscopic Score for Crohn's Disease (SES-CD)
12.0 units on a scale
STANDARD_DEVIATION 5.01 • n=5 Participants
11.7 units on a scale
STANDARD_DEVIATION 4.61 • n=7 Participants
11.8 units on a scale
STANDARD_DEVIATION 4.76 • n=5 Participants
Duration of Disease
10.5 years
STANDARD_DEVIATION 8.57 • n=5 Participants
9.6 years
STANDARD_DEVIATION 9.53 • n=7 Participants
10.0 years
STANDARD_DEVIATION 9.08 • n=5 Participants

PRIMARY outcome

Timeframe: Week 16

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical symptom remission defined by (1) the total number of liquid/very soft stools for the 7 days prior to the Week 16 visit being less than or equal to (≤) 10 (from CDAI Item 1). CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Symptom Remission (From CDAI Item 1) at Week 16
6 Participants
8 Participants

PRIMARY outcome

Timeframe: Week 16

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical Symptom Remission defined by (2) an abdominal pain (graded from 0 \[less severe\]-3 \[more severe\]) rating of ≤ 1 (from CDAI Item 2) on each day for the 7 days prior to the Week 16 visit. CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Symptom Remission (From CDAI Item 2) at Week 16
19 Participants
15 Participants

PRIMARY outcome

Timeframe: Week 16

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical Symptom Remission defined by (1) the total number of liquid/very soft stools for the 7 days prior to the Week 16 visit being ≤ 10 (from CDAI Item 1); and (2) an abdominal pain (graded from 0 \[less severe\]-3 \[more severe\]) rating of ≤ 1 (from CDAI Item 2) on each day for the 7 days prior to the Week 16 visit. CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Symptom Remission (From CDAI Item 1 and 2 Both) at Week 16
5 Participants
7 Participants

PRIMARY outcome

Timeframe: Baseline, Week 16 to 17

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Endoscopic response defined as a ≥ 3-point decrease in the SES-CD from baseline to the SES-CD score obtained between Week 16 and Week 17. SES-CD scores were calculated from centrally-read digital video of ileocolonoscopies performed at baseline and between Week 16 and Week 17. SES-CD is a validated instrument reflecting an endoscopist's global appraisal of mucosal lesions in Crohn's disease. SES-CD grades lesions by location (5 bowel segments: ileum, right colon, transverse colon, left colon, and rectum) using 4 endoscopic variables: ulcer size, extent of ulcerated surface, extent of affected surface, and presence/type of narrowing. The total SES-CD was calculated as the sum of the 4 variables for the 5 bowel segments: rectum, left colon, transverse colon, right colon, and ileum. Scores range from 0 to 60, with higher scores indicating more severe disease.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants With Endoscopic Response Between Week 16 and 17
10 Participants
10 Participants

PRIMARY outcome

Timeframe: Week 52

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical symptom remission defined by (1) the total number of liquid/very soft stools for the 7 days prior to the Week 52 visit being ≤ 10 (from CDAI Item 1). CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Symptom Remission (From CDAI Item 1) at Week 52
7 Participants
3 Participants

PRIMARY outcome

Timeframe: Week 52

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical Symptom Remission defined by (2) an abdominal pain (graded from 0 \[less severe\]-3 \[more severe\]) rating of ≤ 1 (from CDAI Item 2) on each day for the 7 days prior to the Week 52 visit. CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Symptom Remission (From CDAI Item 2) at Week 52
9 Participants
5 Participants

PRIMARY outcome

Timeframe: Week 52

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical Symptom Remission defined by (1) the total number of liquid/very soft stools for the 7 days prior to the Week 52 visit being ≤ 10 (from CDAI Item 1); and (2) an abdominal pain (graded from 0 \[less severe\]-3 \[more severe\]) rating of ≤ 1 (from CDAI Item 2) on each day for the 7 days prior to the Week 52 visit. CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Symptom Remission (From CDAI Item 1 and 2 Both) at Week 52
6 Participants
1 Participants

PRIMARY outcome

Timeframe: Baseline, Week 52

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Endoscopic response defined as a ≥ 3-point decrease in the SES-CD from baseline to the SES-CD score obtained at Week 52. SES-CD is a validated instrument reflecting an endoscopist's global appraisal of mucosal lesions in Crohn's disease. SES-CD grades lesions by location (5 bowel segments: ileum, right colon, transverse colon, left colon, and rectum) using 4 endoscopic variables: ulcer size, extent of ulcerated surface, extent of affected surface, and presence/type of narrowing. The total SES-CD was calculated as the sum of the 4 variables for the 5 bowel segments: rectum, left colon, transverse colon, right colon, and ileum. Scores range from 0 to 60, with higher scores indicating more severe disease.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants With Endoscopic Response at Week 52
9 Participants
15 Participants

SECONDARY outcome

Timeframe: Week 16

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical remission was defined as a CDAI score of less than 150 points at Week 16. CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Remission (Defined as CDAI Score of <150) at Week 16
17 Participants
12 Participants

SECONDARY outcome

Timeframe: From Baseline to Week 52

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

Clinical Symptom Remission defined by (1) the total number of liquid/very soft stools for the 7 days prior to each clinical visit being ≤ 10 (from CDAI Item 1); and (2) an abdominal pain (graded from 0 \[less severe\]-3 \[more severe\]) rating of ≤ 1 (from CDAI Item 2) on each day for the last 7 days prior to each clinic visit in ≥ 80% of the study visits during the 52-week treatment period, including Week 52. CDAI score is a weighted, composite index of 8 items (stool frequency, severity of abdominal pain, degree of general well-being, presence or absence of extraintestinal manifestations including fistula, use or non-use of antidiarrheal agents, presence or absence of abdominal mass, hematocrit, and body weight). Scores range from 0 to approximately 600 with higher scores indicating greater disease severity.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants Who Achieved Clinical Symptom Remission (From CDAI Item 1 and 2 Both) Over Time
2 Participants
3 Participants

SECONDARY outcome

Timeframe: Week 52

Population: ITT population included all randomized participants who received at least 1 dose of study drug.

SES-CD is a validated instrument reflecting an endoscopist's global appraisal of mucosal lesions in Crohn's disease. SES-CD grades lesions by location (5 bowel segments: ileum, right colon, transverse colon, left colon, and rectum) using 4 endoscopic variables: ulcer size, extent of ulcerated surface, extent of affected surface, and presence/type of narrowing. The total SES-CD was calculated as the sum of the 4 variables for the 5 bowel segments: rectum, left colon, transverse colon, right colon, and ileum. Scores range from 0 to 60, with higher scores indicating more severe disease.

Outcome measures

Outcome measures
Measure
Rifaximin EIR 800 mg
n=35 Participants
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 Participants
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Number of Participants With SES-CD Score of 0 at Week 52
0 Participants
3 Participants

Adverse Events

Rifaximin EIR 800 mg

Serious events: 6 serious events
Other events: 25 other events
Deaths: 0 deaths

Placebo

Serious events: 9 serious events
Other events: 25 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Rifaximin EIR 800 mg
n=35 participants at risk
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 participants at risk
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Blood and lymphatic system disorders
Anaemia
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Cardiac disorders
Coronary artery disease
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Cardiac disorders
Myocardial infarction
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Abdominal pain
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Barrett's oesophagus
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Colitis
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Crohn's disease
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
6.7%
3/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Diarrhoea haemorrhagic
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Gastrointestinal haemorrhage
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Nausea
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Odynophagia
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Pancreatitis acute
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Small intestinal obstruction
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Vomiting
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
4.4%
2/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
General disorders
Fatigue
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Infections and infestations
Urinary tract infection
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Injury, poisoning and procedural complications
Overdose
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Injury, poisoning and procedural complications
Urinary retention postoperative
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Metabolism and nutrition disorders
Dehydration
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Hodgkin's disease
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung adenocarcinoma
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Nervous system disorders
Seizure
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Pregnancy, puerperium and perinatal conditions
Pregnancy
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Reproductive system and breast disorders
Prostatitis
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Vascular disorders
Peripheral ischaemia
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.

Other adverse events

Other adverse events
Measure
Rifaximin EIR 800 mg
n=35 participants at risk
Participants received rifaximin EIR 400 mg tablets orally twice daily for 52 weeks.
Placebo
n=45 participants at risk
Participants received placebo matched to rifaximin EIR tablets orally twice daily for 52 weeks.
Blood and lymphatic system disorders
Anaemia
8.6%
3/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Blood and lymphatic system disorders
Lymphadenopathy
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Abdominal pain
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
15.6%
7/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Abdominal pain upper
11.4%
4/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
4.4%
2/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Crohn's disease
8.6%
3/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
15.6%
7/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Diarrhoea
11.4%
4/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
11.1%
5/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Nausea
8.6%
3/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
8.9%
4/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Rectal haemorrhage
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
8.9%
4/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Gastrointestinal disorders
Vomiting
11.4%
4/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
8.9%
4/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
General disorders
Fatigue
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
4.4%
2/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
General disorders
Pain
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
General disorders
Pyrexia
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
4.4%
2/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Infections and infestations
Gastroenteritis viral
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Infections and infestations
Nasopharyngitis
11.4%
4/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
2.2%
1/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Infections and infestations
Pharyngitis streptococcal
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Infections and infestations
Sinusitis
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Infections and infestations
Upper respiratory tract infection
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
4.4%
2/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Infections and infestations
Urinary tract infection
0.00%
0/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
6.7%
3/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Injury, poisoning and procedural complications
Contusion
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Metabolism and nutrition disorders
Hypokalaemia
2.9%
1/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
6.7%
3/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Metabolism and nutrition disorders
Type 2 diabetes mellitus
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Musculoskeletal and connective tissue disorders
Arthralgia
8.6%
3/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
6.7%
3/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Musculoskeletal and connective tissue disorders
Back pain
8.6%
3/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
4.4%
2/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Musculoskeletal and connective tissue disorders
Pain in extremity
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Nervous system disorders
Headache
8.6%
3/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
11.1%
5/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Skin and subcutaneous tissue disorders
Alopecia
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
0.00%
0/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
Skin and subcutaneous tissue disorders
Rash
5.7%
2/35 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.
8.9%
4/45 • Adverse events (AEs) were reported from time of signing informed consent until the end of the follow-up period (2 weeks after last treatment [Week 54]) .
Occurrences of AEs or serious adverse events (SAEs) were reported during each study visit or by the participant outside of scheduled visits.

Additional Information

Director of Clinical Operations

Bausch Health Americas, Inc.

Phone: 908-927-0873

Results disclosure agreements

  • Principal investigator is a sponsor employee Please contact Sponsor directly for additional information.
  • Publication restrictions are in place

Restriction type: OTHER