Trial Outcomes & Findings for Optimal Treatment for Recurrent Clostridium Difficile (NCT NCT02667418)

NCT ID: NCT02667418

Last Updated: 2025-11-12

Results Overview

The Primary outcome will be sustained clinical response as measured at study day 59 for all treatment regimens. Sustained clinical response is a composite outcome that includes symptom resolution during treatment without any of the following (as assessed on day 59): 1. Diarrhea recurrence 2. Other non-fatal clinical events including severe abdominal pain, toxic megacolon (where diarrhea ceases but is not a beneficial outcome), and colectomy 3. Death

Recruitment status

TERMINATED

Study phase

PHASE4

Target enrollment

308 participants

Primary outcome timeframe

Day 59 for all treatment regimens.

Results posted on

2025-11-12

Participant Flow

Participant milestones

Participant milestones
Measure
Fidaxomicin
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Vancomycin T/P
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Vancomycin
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Overall Study
STARTED
105
102
101
Overall Study
Modified Intent-To-Treat
100
99
100
Overall Study
Safety Set
102
100
100
Overall Study
COMPLETED
84
91
94
Overall Study
NOT COMPLETED
21
11
7

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

One participant in Fidaxomicin with missing race information

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Fidaxomicin
n=105 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Vancomycin T/P
n=102 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Vancomycin
n=101 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Total
n=308 Participants
Total of all reporting groups
Age, Continuous
66.6 years
STANDARD_DEVIATION 12.5 • n=105 Participants
67.7 years
STANDARD_DEVIATION 11.9 • n=102 Participants
67.9 years
STANDARD_DEVIATION 12.0 • n=101 Participants
67.4 years
STANDARD_DEVIATION 12.1 • n=308 Participants
Sex: Female, Male
Female
12 Participants
n=105 Participants
6 Participants
n=102 Participants
11 Participants
n=101 Participants
29 Participants
n=308 Participants
Sex: Female, Male
Male
93 Participants
n=105 Participants
96 Participants
n=102 Participants
90 Participants
n=101 Participants
279 Participants
n=308 Participants
Race/Ethnicity, Customized
White
86 Participants
n=104 Participants • One participant in Fidaxomicin with missing race information
80 Participants
n=102 Participants • One participant in Fidaxomicin with missing race information
79 Participants
n=101 Participants • One participant in Fidaxomicin with missing race information
245 Participants
n=307 Participants • One participant in Fidaxomicin with missing race information
Race/Ethnicity, Customized
African American
15 Participants
n=104 Participants • One participant in Fidaxomicin with missing race information
18 Participants
n=102 Participants • One participant in Fidaxomicin with missing race information
19 Participants
n=101 Participants • One participant in Fidaxomicin with missing race information
52 Participants
n=307 Participants • One participant in Fidaxomicin with missing race information
Race/Ethnicity, Customized
Other
3 Participants
n=104 Participants • One participant in Fidaxomicin with missing race information
4 Participants
n=102 Participants • One participant in Fidaxomicin with missing race information
3 Participants
n=101 Participants • One participant in Fidaxomicin with missing race information
10 Participants
n=307 Participants • One participant in Fidaxomicin with missing race information

PRIMARY outcome

Timeframe: Day 59 for all treatment regimens.

Population: mITT Primary Analysis: Missing primary outcome D-COM at Day 59 in the mITT analysis was imputed by an imputation model. mITT Sensitivity Analysis 1: Missing primary outcome D-COM at Day 59 was treated as failure. mITT Sensitivity Analysis 2: Missing outcomes were excluded as a complete case analysis. PP analysis: Participants who 1) failed to respond by day 10 or completed day 59 follow-up and (2) took 80% of their assigned drug according to the pill count (Per-Protocol population).

The Primary outcome will be sustained clinical response as measured at study day 59 for all treatment regimens. Sustained clinical response is a composite outcome that includes symptom resolution during treatment without any of the following (as assessed on day 59): 1. Diarrhea recurrence 2. Other non-fatal clinical events including severe abdominal pain, toxic megacolon (where diarrhea ceases but is not a beneficial outcome), and colectomy 3. Death

Outcome measures

Outcome measures
Measure
Vancomycin
n=100 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=100 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=99 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Number of Participants With Sustained Clinical Response as Measured at Study Day 59 for All Treatment Regimens
mITT Sensitivity Analysis 1
42 Participants
40 Participants
56 Participants
Number of Participants With Sustained Clinical Response as Measured at Study Day 59 for All Treatment Regimens
PP Analysis
42 Participants
39 Participants
55 Participants
Number of Participants With Sustained Clinical Response as Measured at Study Day 59 for All Treatment Regimens
mITT Primary Analysis
44 Participants
44 Participants
58 Participants
Number of Participants With Sustained Clinical Response as Measured at Study Day 59 for All Treatment Regimens
mITT Sensitivity Analysis 2
42 Participants
40 Participants
56 Participants

SECONDARY outcome

Timeframe: 28 Days Post End of Therapy

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Sustained Diarrhea Composite Outcome (D-COM) at 28 days Post End of Therapy- Secondary Analyses of Primary Outcome. Sustained clinical response without recurrent CDI (CDI-COM) at 28 days post end of therapy for all three treatment regimens. Sustained clinical response was defined using the same criteria as previously stated except that the endpoint will be 28 days after the last dose of treatment drug for each treatment arm (day 38 for vancomycin and fidaxomicin, and day 59 for vancomycin taper/pulse).Sustained clinical response is a composite endpoint defined as symptom resolution during treatment without diarrhea recurrence, mortality or other important clinical outcomes at any time during the follow-up period. Those participants failing to meet the criteria of symptom resolution (diarrhea resolution) by the end of the active treatment (day 10 for all groups), or who experience a recurrence during the follow-up period, will be considered study treatment failures.

Outcome measures

Outcome measures
Measure
Vancomycin
n=96 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=95 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=92 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Sustained Diarrhea Composite Outcome (D-COM) at 28 Days Post End of Therapy
48 Participants
56 Participants
51 Participants

SECONDARY outcome

Timeframe: Day 59 post randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Clostridium difficile Infection Composite Outcome (CDI-COM) at day 59 post randomization. Sustained response in CDI-COM is defined using the same composite endpoint criteria as was used in the D-COM composite outcome but with confirmation of no CDI recurrence by a negative C. difficile stool assay test (i.e., proportion of subjects who achieve symptom resolution by day 10 without recurrent CDI, without non-fatal clinical events, and without death).

Outcome measures

Outcome measures
Measure
Vancomycin
n=91 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=91 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=83 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Clostridium Difficile Infection Composite Outcome (CDI-COM)
44 Participants
59 Participants
43 Participants

SECONDARY outcome

Timeframe: Day 10 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

The percentage of participants who had symptom resolution by Day 10 post randomization

Outcome measures

Outcome measures
Measure
Vancomycin
n=98 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=97 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=96 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Symptom Resolution
92 Participants
90 Participants
90 Participants

SECONDARY outcome

Timeframe: Day 90 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

CDI recurrence following initial symptom resolution

Outcome measures

Outcome measures
Measure
Vancomycin
n=78 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=79 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=68 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
CDI Recurrence
34 Participants
26 Participants
29 Participants

SECONDARY outcome

Timeframe: Day 90 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Diarrhea recurrence with confirmation of recurrent CDI following initial symptom resolution

Outcome measures

Outcome measures
Measure
Vancomycin
n=83 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=85 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=77 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Diarrhea Recurrence
41 Participants
35 Participants
41 Participants

SECONDARY outcome

Timeframe: Day 10 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Change in patient reported C.diff Health Related Quality of Life (HRQOL) from baseline (day 0) to day 10. The HRQOL is measured with patient self-reported 32-item questionnaire. The summary measure, CDiff32-QOL, is the total score that sums over 32 individual items with each item rated on a 5-point Likert scale and then transformed to a 100-point scale with higher score indicating better C.diff Health Related QOL in general. The full scale of the HRQOL: 1-5 on a 5-point Likert scale and 0-100 on the 100-point scale; the minimum: 0 on the 100-point scale and maximum value: 100 on the 100-point scale. The summary measure (32 items) range on the 100-point scale: 0-3200.

Outcome measures

Outcome measures
Measure
Vancomycin
n=101 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=102 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=105 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
C.Diff Health Related Quality of Life (HRQOL)
543.8 units on a scale
Standard Deviation 535.7
451.8 units on a scale
Standard Deviation 582.0
446.6 units on a scale
Standard Deviation 419.1

SECONDARY outcome

Timeframe: day 0- day 59

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Change in patient reported C.diff Health Related Quality of Life (HRQOL) from baseline day 0 to day 59. The HRQOL is measured with patient self-reported 32-item questionnaire. The summary measure, CDiff32-QOL, is the total score that sums over 32 individual items with each item rated on a 5-point Likert scale and then transformed to a 100-point scale with higher score indicating better C.diff Health Related QOL in general. The full scale of the HRQOL: 1-5 on a 5-point Likert scale and 0-100 on the 100-point scale; the minimum: 0 on the 100-point scale and maximum value: 100 on the 100-point scale. The summary measure (32 items) range on the 100-point scale: 0-3200.

Outcome measures

Outcome measures
Measure
Vancomycin
n=101 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=102 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=105 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
C.Diff Health Related Quality of Life (HRQOL)
919.8 units on a scale
Standard Deviation 654.3
902.7 units on a scale
Standard Deviation 682.6
818.5 units on a scale
Standard Deviation 743.0

SECONDARY outcome

Timeframe: Day 59 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Sustained clinical response (D-COM) at day 59 for subgroups (infection with the BI/NAP1/027 strain (yes) at study enrollment; etc.). The sliced analysis was used to break down the subgroup factors into different sub-levels and then to explore the differences between treatment group (VAN-TP and FDX) and VAN control group at each level.

Outcome measures

Outcome measures
Measure
Vancomycin
n=9 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=18 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=9 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Sustained Clinical Response (D-COM) BI/NAP1/027 Strain as "Yes"
2 Participants
8 Participants
3 Participants

SECONDARY outcome

Timeframe: Day 38 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Diarrhea recurrence with confirmation of recurrent CDI following initial symptom resolution. Diarrhea recurrence and diarrhea recurrence with confirmation of recurrent CDI following initial symptom resolution. Diarrhea (\>3 loose or semi-formed stools over 24 hours) over 48 consecutive hours in participants who achieved initial symptom resolution will be recorded separately from sustained clinical response as will confirmed CDI recurrence.

Outcome measures

Outcome measures
Measure
Vancomycin
n=85 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=86 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=80 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Diarrhea Recurrence
37 Participants
19 Participants
30 Participants

SECONDARY outcome

Timeframe: Day 59 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Diarrhea recurrence with confirmation of recurrent CDI following initial symptom resolution

Outcome measures

Outcome measures
Measure
Vancomycin
n=83 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=85 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=78 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Diarrhea Recurrence
41 Participants
29 Participants
39 Participants

SECONDARY outcome

Timeframe: Day 38 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

CDI recurrence following initial symptom resolution

Outcome measures

Outcome measures
Measure
Vancomycin
n=80 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=82 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=75 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
CDI Recurrence
28 Participants
12 Participants
21 Participants

SECONDARY outcome

Timeframe: Day 59 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

CDI recurrence following initial symptom resolution

Outcome measures

Outcome measures
Measure
Vancomycin
n=78 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=79 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=71 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
CDI Recurrence
34 Participants
21 Participants
28 Participants

SECONDARY outcome

Timeframe: Day 59 since randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Sustained clinical response (D-COM) at day 59 for subgroups (infection with the BI/NAP1/027 strain (no) at study enrollment; etc.). The sliced analysis was used to break down the subgroup factors into different sub-levels and then to explore the differences between therapy group (VAN-TP and FDX) and VAN control group at each level.

Outcome measures

Outcome measures
Measure
Vancomycin
n=66 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=55 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=50 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Sustained Clinical Response (D-COM) With the BI/NAP1/027 Strain no
32 Participants
34 Participants
21 Participants

SECONDARY outcome

Timeframe: 90 Days After Randomization

Population: mITT Complete Case Analysis with missing outcome excluded, number of participants in population would be different in other mITT complete case analysis populations because timeline for data collection and outcome variables were different.

Sustained Diarrhea Composite Outcome (D-COM) at 90 days after Randomization - Secondary Analyses of Primary Outcome

Outcome measures

Outcome measures
Measure
Vancomycin
n=95 Participants
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Vancomycin T/P
n=95 Participants
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Fidaxomicin
n=91 Participants
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Sustained Diarrhea Composite Outcome (D-COM) at 90 Days After Randomization
42 Participants
51 Participants
36 Participants

Adverse Events

Fidaxomicin

Serious events: 34 serious events
Other events: 7 other events
Deaths: 8 deaths

Vancomycin T/P

Serious events: 30 serious events
Other events: 15 other events
Deaths: 2 deaths

Vancomycin

Serious events: 27 serious events
Other events: 12 other events
Deaths: 3 deaths

Serious adverse events

Serious adverse events
Measure
Fidaxomicin
n=102 participants at risk
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Vancomycin T/P
n=100 participants at risk
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Vancomycin
n=100 participants at risk
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Cardiac disorders
Arrhythmia
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Cardiac disorders
Cardiac failure
2.0%
2/102 • Number of events 2 • 8 years, 8 months
2.0%
2/100 • Number of events 3 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Cardiac disorders
Mycardinal infection
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Cardiac disorders
Cardiogenic shock
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Gastrointestinal disorders
Pancreatitis
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 3 • 8 years, 8 months
Gastrointestinal disorders
Upper Gastrointestinal hemorrhage
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Gastrointestinal disorders
Diarrhea
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
General disorders
chest pain
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
General disorders
complication associated with device
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
General disorders
death
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
General disorders
Pyrexia
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
General disorders
Asthenia
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
General disorders
Physical deconditioning
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
Cellulitis
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Infections and infestations
Clostridium difficile infection
4.9%
5/102 • Number of events 5 • 8 years, 8 months
6.0%
6/100 • Number of events 6 • 8 years, 8 months
3.0%
3/100 • Number of events 3 • 8 years, 8 months
Infections and infestations
Pneumonia
2.0%
2/102 • Number of events 2 • 8 years, 8 months
3.0%
3/100 • Number of events 3 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Infections and infestations
Sepsis syndrome
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Infections and infestations
Urinary tract Infection
2.0%
2/102 • Number of events 2 • 8 years, 8 months
4.0%
4/100 • Number of events 4 • 8 years, 8 months
2.0%
2/100 • Number of events 2 • 8 years, 8 months
Infections and infestations
Urosepsis
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Infections and infestations
Bacteraemia
2.0%
2/102 • Number of events 2 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
Cardiac valve vegetation
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
Clostridium difficile colitis
0.98%
1/102 • Number of events 1 • 8 years, 8 months
3.0%
3/100 • Number of events 3 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
Septic shock
0.98%
1/102 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
Appendicitis
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
COVID-19 pneumonia
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
Clostridial sepsis
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Injury, poisoning and procedural complications
Fall
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
2.0%
2/100 • Number of events 2 • 8 years, 8 months
Injury, poisoning and procedural complications
Alcohol poisoning
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Injury, poisoning and procedural complications
Fracture
2.0%
2/102 • Number of events 2 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Injury, poisoning and procedural complications
Renal lymphocele
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Metabolism and nutrition disorders
Dehydration
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Metabolism and nutrition disorders
Hypoglycaemia
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Metabolism and nutrition disorders
Hyperkaliemia
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Metabolism and nutrition disorders
Hypervolaemia
0.98%
1/102 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Musculoskeletal and connective tissue disorders
Arthralgia
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 3 • 8 years, 8 months
Nervous system disorders
Haemorrhage intracranial
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Nervous system disorders
Encephalopathy
0.98%
1/102 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Nervous system disorders
Cerebrovascular accident
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Nervous system disorders
metabolic encephalopathy
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Psychiatric disorders
Alcohol abuse
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Psychiatric disorders
Alcohol withdrawal
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Psychiatric disorders
Substance abuse
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Psychiatric disorders
Suicidal ideation
0.98%
1/102 • Number of events 1 • 8 years, 8 months
2.0%
2/100 • Number of events 2 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Psychiatric disorders
Suicide attempt
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 2 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Renal and urinary disorders
Acute kidney injury
2.0%
2/102 • Number of events 2 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
2.0%
2/100 • Number of events 2 • 8 years, 8 months
Renal and urinary disorders
End stage renal disease
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Renal and urinary disorders
Haematuria
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Respiratory, thoracic and mediastinal disorders
Pleural effusion
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Respiratory, thoracic and mediastinal disorders
Respiratory failure
2.0%
2/102 • Number of events 2 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
2.0%
2/100 • Number of events 2 • 8 years, 8 months
Respiratory, thoracic and mediastinal disorders
Chronic Obstructive Pulmonary disease
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Respiratory, thoracic and mediastinal disorders
Dyspnoea exertional
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Social circumstances
Homeless
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Surgical and medical procedures
Alcohol detoxification
2.0%
2/102 • Number of events 10 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Surgical and medical procedures
Amputation
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Surgical and medical procedures
Intraocular Lens Implant
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Surgical and medical procedures
Knee Arthroplasty
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Surgical and medical procedures
Arteriovenous fistula operation
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Vascular disorders
Hypotension
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Vascular disorders
Orthostatic hypotension
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Blood and lymphatic system disorders
Anaemia
0.98%
1/102 • Number of events 2 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Hepatobiliary disorders
Cholecystitis
0.98%
1/102 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Immune system disorders
Anaphylactic reaction
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Metastases to bone
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Myelodysplastic syndrome
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Pancreatic carcinoma
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Colon cancer stage IV
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Diffuse large B-cell lymphoma
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Skin and subcutaneous tissue disorders
Skin ulcer
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Skin and subcutaneous tissue disorders
Decubitus ulcer
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Investigations
Catheterisation cardiac
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Product Issues
Device occlusion
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months

Other adverse events

Other adverse events
Measure
Fidaxomicin
n=102 participants at risk
Standard 10-day fidaxomicin treatment for Clostridium difficile Fidaxomicin: 200 mg PO twice daily for 10 days
Vancomycin T/P
n=100 participants at risk
Standard 10-day vancomycin treatment followed by taper and pulse vancomycin treatment for Clostridium difficile Vancomycin with Taper/Pulse: 125 mg PO four times daily for 10 days, followed by 125 mg once daily x 7 days, then once every other day x 7 days, then once every 3rd day x 7 days
Vancomycin
n=100 participants at risk
Standard 10-day vancomycin treatment for Clostridium difficile Vancomycin: 125 mg PO for times daily for 10 days
Gastrointestinal disorders
Nausea
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Gastrointestinal disorders
Abdominal pain
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Gastrointestinal disorders
Vomiting
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Gastrointestinal disorders
Frequent bowel movements
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Infections and infestations
Clostridioide difficile infection
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Infections and infestations
Fungal infection
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Infections and infestations
Conjunctivitis
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Investigations
Hepatic enzyme increased
0.98%
1/102 • Number of events 1 • 8 years, 8 months
3.0%
3/100 • Number of events 3 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Investigations
White blood cell count
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Investigations
Alanine aminotransferase
0.98%
1/102 • Number of events 1 • 8 years, 8 months
2.0%
2/100 • Number of events 2 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Investigations
Aspartate aminotransferase
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Investigations
Neutrophil count decrease
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Skin and subcutaneous tissue disorders
Drug eruption
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Skin and subcutaneous tissue disorders
Pruritis
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Skin and subcutaneous tissue disorders
Rash
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Skin and subcutaneous tissue disorders
Hyperhidrosis
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Skin and subcutaneous tissue disorders
Erythema
0.98%
1/102 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Cardiac disorders
Tachycardia
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
General disorders
Fatigue
0.00%
0/102 • 8 years, 8 months
2.0%
2/100 • Number of events 2 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
General disorders
Malaise
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Hepatobiliary disorders
Hepatic steatosis
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Nervous system disorders
Tremor
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Psychiatric disorders
Emotional distress
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Vascular disorders
Hypotension
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Gastrointestinal disorders
Abdominal distension
0.00%
0/102 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
Gastrointestinal disorders
Diarrhoea
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months
Gastrointestinal disorders
Dysepsia
0.00%
0/102 • 8 years, 8 months
0.00%
0/100 • 8 years, 8 months
1.0%
1/100 • Number of events 1 • 8 years, 8 months

Additional Information

Dr. Stuart Johnson

Hines VA

Phone: 708--202-8387

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place