Ulcerative Colitis
Conditions
Brief summary
This is a phase 2 randomized, placebo-controlled, double-blind, parallel-group multicenter study with an optional open-label extension (OLE) period. The purpose of this study is to evaluate the efficacy and safety of oral BT-11 compared to placebo in subjects with UC. This study includes 3 periods: induction, maintenance, and an optional OLE period.
Interventions
Oral, once daily tablet
Oral, once daily tablet
Oral, once daily tablet
Sponsors
Study design
Intervention model description
This is a phase 2 randomized, placebo-controlled, double-blind, parallel-group multicenter study with an optional open label extension (OLE) period. The purpose of this study is to evaluate the efficacy and safety of oral BT-11 compared to placebo in subjects with UC. This study includes 3 periods: induction, maintenance, and an optional OLE period.
Eligibility
Inclusion criteria
Key Inclusion Criteria: 1. . Male and female subjects aged 18 to 75 years, inclusive. 2. . Diagnosis of UC for at least 3 months prior to screening. 3. . UC, as defined by a total Mayo Score of 4 to 10 inclusive at baseline with a MES 2 (confirmed by central reader). 4. . Able to participate fully in all aspects of this clinical trial. 5. . Written informed consent must be obtained and documented. Key
Exclusion criteria
1. . A diagnosis of CD, indeterminate colitis, or presence or history of the fistula with CD. 2. . Modified Truelove and Witts criteria (2: 6 bloody stools per day and one or more of the following: pulse \> 90 bpm, temperature \> 37.8°C, hemoglobin \< 10.5 g/dl, or hs-CRP \> 30 mg/I). 3. . Disease activity limited to distal 15 cm (proctitis). 4. . Treatment with an immunosuppressant (azathioprine, 6- mercaptopurine \[6-MP\]) within 25 days prior to randomization. 5. . Unable to attend study visits or comply with procedures. 6. . Concurrent participation in any other interventional study. 7. . Prior enrollment in the current study and had received study treatment.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Clinical Remission | Week 12 | Clinical remission rate at Week 12, defined using the 3-component modified Mayo Score as a rectal bleeding subscore of 0, a stool frequency subscore of 0 or 1, and an endoscopic subscore of 0 or 1. |
Countries
Bosnia and Herzegovina, Croatia, Poland, Ukraine, United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| BT-11 Low-dose (440 mg) Oral, once daily tablet | 66 |
| BT-11 High-dose (880 mg) Oral, once daily tablet | 66 |
| Placebo Oral, once daily tablet | 66 |
| Total | 198 |
Baseline characteristics
| Characteristic | BT-11 Low-dose (440 mg) | BT-11 High-dose (880 mg) | Placebo | Total |
|---|---|---|---|---|
| Age, Continuous | 43.1 years STANDARD_DEVIATION 14.9 | 43.3 years STANDARD_DEVIATION 14.9 | 43.3 years STANDARD_DEVIATION 14.5 | 43.2 years STANDARD_DEVIATION 14.7 |
| Race (NIH/OMB) American Indian or Alaska Native | 1 Participants | 0 Participants | 0 Participants | 1 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 0 Participants | 1 Participants | 2 Participants | 3 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) White | 65 Participants | 65 Participants | 64 Participants | 194 Participants |
| Sex: Female, Male Female | 40 Participants | 22 Participants | 31 Participants | 93 Participants |
| Sex: Female, Male Male | 26 Participants | 44 Participants | 35 Participants | 105 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk |
|---|---|---|---|
| deaths Total, all-cause mortality | 0 / 66 | 0 / 66 | 0 / 66 |
| other Total, other adverse events | 23 / 66 | 29 / 66 | 27 / 66 |
| serious Total, serious adverse events | 2 / 66 | 3 / 66 | 3 / 66 |
Outcome results
Clinical Remission
Clinical remission rate at Week 12, defined using the 3-component modified Mayo Score as a rectal bleeding subscore of 0, a stool frequency subscore of 0 or 1, and an endoscopic subscore of 0 or 1.
Time frame: Week 12
Population: ITT
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| BT-11 Low-dose (440 mg) | Clinical Remission | 30.3 percentage of participants |
| BT-11 High-dose (880 mg) | Clinical Remission | 31.8 percentage of participants |
| Placebo | Clinical Remission | 22.7 percentage of participants |