Constipation
Conditions
Brief summary
The primary purpose of this study is to evaluate the safety and dose-response relationship of N-methylnaltrexone bromide (MOA-728) by observing spontaneous bowel movements in subjects with chronic pain, which is not due to malignant cancer, and who have opioid-induced bowel dysfunction (OIBD).
Interventions
placebo
Sponsors
Study design
Eligibility
Inclusion criteria
* Adult outpatients with opioid-induced bowel dysfunction and chronic pain, which is not due to malignant cancer. * Taking oral, transdermal, intravenous, or subcutaneous opioids. * Willingness to discontinue all pre-study laxative therapy and use only study permitted rescue laxatives.
Exclusion criteria
* History of chronic constipation before the initiation of opioid therapy. * Other GI disorders known to affect bowel transit. * Women who are pregnant, breast-feeding, or plan to become pregnant.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | 6 hours |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Placebo placebo: placebo | 33 |
| 150 mg N-methylnaltrexone bromide (MOA-728): Oral | 7 |
| 300 mg N-methylnaltrexone bromide (MOA-728): Oral | 14 |
| 450 mg N-methylnaltrexone bromide (MOA-728): Oral | 33 |
| 600 mg N-methylnaltrexone bromide (MOA-728): Oral | 35 |
| Total | 122 |
Baseline characteristics
| Characteristic | Placebo | 150 mg | 300 mg | 450 mg | 600 mg | Total |
|---|---|---|---|---|---|---|
| Age, Continuous | 48 years STANDARD_DEVIATION 8.75 | 48.43 years STANDARD_DEVIATION 6.8 | 52.43 years STANDARD_DEVIATION 8.56 | 51.21 years STANDARD_DEVIATION 12.24 | 49.51 years STANDARD_DEVIATION 11.25 | 49.84 years STANDARD_DEVIATION 10.39 |
| Sex: Female, Male Female | 22 Participants | 5 Participants | 5 Participants | 24 Participants | 18 Participants | 74 Participants |
| Sex: Female, Male Male | 11 Participants | 2 Participants | 9 Participants | 9 Participants | 17 Participants | 48 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk | EG004 affected / at risk |
|---|---|---|---|---|---|
| deaths Total, all-cause mortality | 15 / 33 | 3 / 7 | 4 / 14 | 13 / 33 | 18 / 35 |
| other Total, other adverse events | 10 / 33 | 3 / 7 | 4 / 14 | 9 / 33 | 6 / 35 |
| serious Total, serious adverse events | 0 / 33 | 0 / 7 | 0 / 14 | 1 / 33 | 3 / 35 |
Outcome results
Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment
Time frame: 6 hours
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Placebo | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 6 hours of 1st dose | 6 Participants |
| Placebo | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 2 hours of 1st dose | 1 Participants |
| Placebo | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 4 hours of 1st dose | 3 Participants |
| Placebo | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 3 hours of 1st dose | 3 Participants |
| Placebo | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 1 hour of 1st dose | 0 Participants |
| 150 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 2 hours of 1st dose | 1 Participants |
| 150 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 4 hours of 1st dose | 1 Participants |
| 150 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 1 hour of 1st dose | 0 Participants |
| 150 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 6 hours of 1st dose | 1 Participants |
| 150 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 3 hours of 1st dose | 1 Participants |
| 300 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 3 hours of 1st dose | 2 Participants |
| 300 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 4 hours of 1st dose | 4 Participants |
| 300 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 6 hours of 1st dose | 4 Participants |
| 300 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 2 hours of 1st dose | 1 Participants |
| 300 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 1 hour of 1st dose | 0 Participants |
| 450 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 6 hours of 1st dose | 15 Participants |
| 450 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 1 hour of 1st dose | 7 Participants |
| 450 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 2 hours of 1st dose | 9 Participants |
| 450 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 3 hours of 1st dose | 13 Participants |
| 450 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 4 hours of 1st dose | 15 Participants |
| 600 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 4 hours of 1st dose | 14 Participants |
| 600 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 3 hours of 1st dose | 9 Participants |
| 600 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 2 hours of 1st dose | 5 Participants |
| 600 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 1 hour of 1st dose | 2 Participants |
| 600 mg | Percentage of Participants With a Spontaneous Bowel Movement (SBM) Within 1, 2, 3, 4, and 6 Hours of Treatment | Within 6 hours of 1st dose | 17 Participants |