Trial Outcomes & Findings for Efficacy and Safety of Anti-MAP Therapy in Adult Crohn's Disease (NCT NCT01951326)

NCT ID: NCT01951326

Last Updated: 2020-12-08

Results Overview

Reduction of the total Crohn's Disease Activity Index (CDAI) score to less than 150. Lower CDAI scores indicate a better outcome.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

331 participants

Primary outcome timeframe

Week 26

Results posted on

2020-12-08

Participant Flow

Participant milestones

Participant milestones
Measure
RHB-104
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Overall Study
STARTED
166
165
Overall Study
COMPLETED
87
87
Overall Study
NOT COMPLETED
79
78

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Efficacy and Safety of Anti-MAP Therapy in Adult Crohn's Disease

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Total
n=331 Participants
Total of all reporting groups
Age, Continuous
39.0 years
STANDARD_DEVIATION 12.51 • n=5 Participants
39.3 years
STANDARD_DEVIATION 12.56 • n=7 Participants
39.1 years
STANDARD_DEVIATION 12.52 • n=5 Participants
Sex: Female, Male
Female
75 Participants
n=5 Participants
67 Participants
n=7 Participants
142 Participants
n=5 Participants
Sex: Female, Male
Male
91 Participants
n=5 Participants
98 Participants
n=7 Participants
189 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
1 Participants
n=7 Participants
1 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
8 Participants
n=5 Participants
12 Participants
n=7 Participants
20 Participants
n=5 Participants
Race (NIH/OMB)
White
156 Participants
n=5 Participants
150 Participants
n=7 Participants
306 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
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
Europe
47 participants
n=5 Participants
50 participants
n=7 Participants
97 participants
n=5 Participants
Region of Enrollment
Israel
18 participants
n=5 Participants
20 participants
n=7 Participants
38 participants
n=5 Participants
Region of Enrollment
Southeast Asia
9 participants
n=5 Participants
12 participants
n=7 Participants
21 participants
n=5 Participants
Region of Enrollment
North America
92 participants
n=5 Participants
83 participants
n=7 Participants
175 participants
n=5 Participants
Baseline Crohn's Disease Activity Index (CDAI) score
297.77 units on a scale
STANDARD_DEVIATION 57.023 • n=5 Participants
293.44 units on a scale
STANDARD_DEVIATION 53.184 • n=7 Participants
295.61 units on a scale
STANDARD_DEVIATION 55.102 • n=5 Participants
Anti-TNF Use at Baseline
37 Participants
n=5 Participants
41 Participants
n=7 Participants
78 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Week 26

Reduction of the total Crohn's Disease Activity Index (CDAI) score to less than 150. Lower CDAI scores indicate a better outcome.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Remission at Week 26
61 Participants
37 Participants

SECONDARY outcome

Timeframe: Week 26

Reduction of Crohn's Disease Activity Index (CDAI) score by a minimum of 100 points. Lower CDAI scores indicate a better outcome.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Response at Week 26
73 Participants
50 Participants

SECONDARY outcome

Timeframe: Week 52

Reduction of the total Crohn's Disease Activity Index (CDAI) score to less than 150. Lower CDAI scores indicate a better outcome.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Remission at Week 52
47 Participants
32 Participants

SECONDARY outcome

Timeframe: Week 26 through week 52

When a subject is in remission with a maximum CDAI score of 149 at every visit from Week 26 through and including Week 52

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Durable Remission Week 26 Through Week 52
33 Participants
21 Participants

SECONDARY outcome

Timeframe: Week 16

Reduction of the total Crohn's Disease Activity Index (CDAI) score to less than 150. Lower CDAI scores indicate a better outcome.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Remission at Week 16
70 Participants
48 Participants

SECONDARY outcome

Timeframe: Week 52

Subjects who are maintained off steroids for a minimum of 3 weeks

Outcome measures

Outcome measures
Measure
RHB-104
n=57 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=55 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Steroid Free Remission at Week 52
11 Participants
5 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline through week 52

Population: Reached duration of remission (dropped out of remission during the study), n (%): RHB-104 54 (53.5); Placebo: 49 (62.8). Censored (remain in remission during the study), n (%): RHB-104: 47 (46.5); Placebo 29 (37.2)

Number of weeks that a subject is in a state of remission. Subjects who experienced remission and continued to be in remission at the time of their last CDAI assessment are censored at the date of their last CDAI assessment.

Outcome measures

Outcome measures
Measure
RHB-104
n=101 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=78 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Duration of Remission
27.1 weeks
Interval 16.14 to 46.86
16.7 weeks
Interval 10.14 to 30.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline through week 52

Population: Reached duration of response (dropped out of response during the study), n (%) RHB-104: 52 (45.2); Placebo: 55 (59.8). Censored (remain in response during the study), n (%): RHB-104: 63 (54.8); Placebo: 37 (40.2)

Number of weeks a subject is in a state of response. Subjects who experienced response and continued to be in response at the time of their last CDAI assessment are censored at the date of their last CDAI assessment.

Outcome measures

Outcome measures
Measure
RHB-104
n=115 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=92 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Duration of Response
40.1 weeks
Interval 22.14 to 52.29
22.1 weeks
Interval 12.14 to 32.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline through week 52

Population: Number of subjects achieved remission, n (%) RHB-104: 101 (60.8); Placebo 78 (47.3). Censored, n (%): RHB-104: 65 (39.2); Placebo 87 (52.7)

\[Date of first observed remission (CDAI score \< 150) - Date of first dose or date of randomization if not dosed + 1\] / 7 Days. Subjects who never experienced remission during the study are censored at the date of their last CDAI assessment.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Time to Remission
12.1 weeks
Interval 8.43 to 12.71
19.9 weeks
Interval 13.0 to 52.43

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline through week 52

Population: Number of subjects achieved response, n (%): RHB-104: 115 (69.3); Placebo: 92 (55.8); Censored, n (%): RHB-104: 51 (30.7); Placebo: 73 (44.2)

\[Date of first observed response (a reduction from baseline of ≥ 100 in CDAI score) - Date of first dose or date of randomization if not dosed + 1\] / 7 Days. Subjects who never experienced response during the study are censored at the date of their last CDAI assessment.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Time to Response
8.3 weeks
Interval 8.0 to 9.14
12.1 weeks
Interval 8.14 to 15.71

OTHER_PRE_SPECIFIED outcome

Timeframe: Week 16 through week 52

Remission in a subject from week 16 through week 52.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Durable Remission Week 16 Through Week 52
31 Participants
14 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Week 16

Reduction of Crohn's Disease Activity Index (CDAI) score by a minimum of 100 points. Lower CDAI scores indicate a better outcome.

Outcome measures

Outcome measures
Measure
RHB-104
n=166 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Response at Week 16
79 Participants
60 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Week 26

Change-from-baseline to week 26 in QTcF (based on cardiac safety report)

Outcome measures

Outcome measures
Measure
RHB-104
n=95 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=104 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Cardiac Safety
27.8 ms
Interval 25.91 to 29.74
0.2 ms
Interval -1.67 to 2.06

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline through week 52

Placebo-corrected change-from-baseline to week 52 in QTcF (based on cardiac safety report)

Outcome measures

Outcome measures
Measure
RHB-104
n=63 Participants
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=54 Participants
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Cardiac Safety
29.8 ms
Interval 27.57 to 32.02
-0.8 ms
Interval -3.16 to 1.57

Adverse Events

RHB-104

Serious events: 31 serious events
Other events: 115 other events
Deaths: 0 deaths

Placebo

Serious events: 31 serious events
Other events: 90 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
RHB-104
n=166 participants at risk
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 participants at risk
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Cardiac disorders
Cardiac disorders
1.2%
2/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.61%
1/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Gastrointestinal disorders
Gastrointestinal disorders
11.4%
19/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
10.3%
17/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
General disorders
General disorders and administration site conditions
0.60%
1/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.00%
0/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Hepatobiliary disorders
Hepatobiliary disorders
1.2%
2/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.00%
0/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Infections and infestations
Infections and infestations
2.4%
4/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
6.1%
10/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Injury, poisoning and procedural complications
Injury, poisoning and procedural complications
0.60%
1/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.61%
1/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Investigations
Investigations
1.2%
2/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.00%
0/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
0.60%
1/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.00%
0/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Renal and urinary disorders
Renal and urinary disorders
0.60%
1/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
1.2%
2/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Reproductive system and breast disorders
Reproductive system and breast disorders
0.00%
0/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.61%
1/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Respiratory, thoracic and mediastinal disorders
Respiratory, thoracic and mediastinal disorders
0.00%
0/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.61%
1/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Vascular disorders
Vascular disorders
1.2%
2/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
0.00%
0/165 • Baseline through 30 days after last dose of study drug, or up to 13 months

Other adverse events

Other adverse events
Measure
RHB-104
n=166 participants at risk
5 RHB-104 capsules administered orally BID RHB-104: 95 mg clarithromycin, 45 mg rifabutin, and 10 mg clofazimine
Placebo
n=165 participants at risk
5 placebo capsules administered orally BID Placebo: 5 placebo capsules administered orally BID
Gastrointestinal disorders
Crohn's Disease
12.7%
21/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
15.2%
25/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Gastrointestinal disorders
Abdominal Pain
14.5%
24/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
11.5%
19/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Gastrointestinal disorders
Nausea
13.3%
22/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
7.3%
12/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Gastrointestinal disorders
Diarrheoa
6.6%
11/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
4.8%
8/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Gastrointestinal disorders
Vomiting
7.2%
12/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
4.2%
7/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Gastrointestinal disorders
Abdominal tenderness
2.4%
4/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
5.5%
9/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Infections and infestations
Upper Respiratory Tract Infection
4.8%
8/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
5.5%
9/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Infections and infestations
Influenza
3.6%
6/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
6.1%
10/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Infections and infestations
Viral Upper Respiratory Infections
4.2%
7/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
5.5%
9/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Infections and infestations
Clostridium difficile Infection
1.8%
3/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
7.3%
12/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Renal and urinary disorders
Chromaturia
25.3%
42/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
1.2%
2/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Nervous system disorders
Headache
9.6%
16/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
10.3%
17/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Musculoskeletal and connective tissue disorders
Arthralgia
9.6%
16/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
4.2%
7/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Blood and lymphatic system disorders
Anemia
6.0%
10/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
3.6%
6/165 • Baseline through 30 days after last dose of study drug, or up to 13 months
Gastrointestinal disorders
Pyrexia
5.4%
9/166 • Baseline through 30 days after last dose of study drug, or up to 13 months
3.6%
6/165 • Baseline through 30 days after last dose of study drug, or up to 13 months

Additional Information

Reza Fathi, Senior VP Research and Development

RedHill Biopharma

Phone: 972-(0)3-541-3131

Results disclosure agreements

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