Trial Outcomes & Findings for Evaluation of the Efficacy and Safety of ADL5945 Once Daily for the Treatment of Opioid-induced Constipation in Adults Taking Opioid Therapy for Chronic Noncancer Pain (NCT NCT01275755)

NCT ID: NCT01275755

Last Updated: 2018-11-15

Results Overview

An SBM was defined as a bowel movement (BM) with no laxative use in the previous 24 hours. Each weekly SBM average was calculated as follows: (7 × number of SBMs) / (number of days with nonmissing data). The overall SBM rate for the 4-week double-blind treatment period was calculated as follows: (the average of the first week + the average of the second week + the average of the third week + the average of the fourth week) / 4.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

81 participants

Primary outcome timeframe

Baseline, Weeks 1 through 4 of treatment

Results posted on

2018-11-15

Participant Flow

Participant milestones

Participant milestones
Measure
Placebo
Each participant received 1 placebo capsule orally every day (QD) during the Run-in Placebo Period (1 week), the Double-blind Treatment Period (4 weeks), and the Run-out Placebo Period (1 week).
ADL5945 0.25 mg
During the Run-in Placebo Period, each participant received 1 placebo capsule orally QD for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.25-milligrams (mg) ADL5945 capsule orally QD for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally QD for 1 week.
Run-in Placebo Period
STARTED
41
40
Run-in Placebo Period
COMPLETED
41
40
Run-in Placebo Period
NOT COMPLETED
0
0
Double-blind Treatment Period
STARTED
41
40
Double-blind Treatment Period
Received at Least 1 Dose of Study Drug
41
40
Double-blind Treatment Period
COMPLETED
39
37
Double-blind Treatment Period
NOT COMPLETED
2
3
Run-out Placebo Period
STARTED
39
37
Run-out Placebo Period
COMPLETED
38
37
Run-out Placebo Period
NOT COMPLETED
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
Each participant received 1 placebo capsule orally every day (QD) during the Run-in Placebo Period (1 week), the Double-blind Treatment Period (4 weeks), and the Run-out Placebo Period (1 week).
ADL5945 0.25 mg
During the Run-in Placebo Period, each participant received 1 placebo capsule orally QD for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.25-milligrams (mg) ADL5945 capsule orally QD for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally QD for 1 week.
Double-blind Treatment Period
Adverse Event
0
2
Double-blind Treatment Period
Lost to Follow-up
1
1
Double-blind Treatment Period
Withdrawal by Subject
1
0
Run-out Placebo Period
Lost to Follow-up
1
0

Baseline Characteristics

Evaluation of the Efficacy and Safety of ADL5945 Once Daily for the Treatment of Opioid-induced Constipation in Adults Taking Opioid Therapy for Chronic Noncancer Pain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=41 Participants
Each participant received 1 placebo capsule orally QD during the Run-in Placebo Period (1 week), the Double-blind Treatment Period (4 weeks), and the Run-out Placebo Period (1 week).
ADL5945 0.25mg
n=40 Participants
During the Run-in Placebo Period, each participant received 1 placebo capsule orally QD for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.25-mg ADL5945 capsule orally QD for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally QD for 1 week.
Total
n=81 Participants
Total of all reporting groups
Age, Categorical
LTE18
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
BTWN
37 Participants
n=5 Participants
35 Participants
n=7 Participants
72 Participants
n=5 Participants
Age, Categorical
GTE65
4 Participants
n=5 Participants
5 Participants
n=7 Participants
9 Participants
n=5 Participants
Sex: Female, Male
Female
28 Participants
n=5 Participants
28 Participants
n=7 Participants
56 Participants
n=5 Participants
Sex: Female, Male
Male
13 Participants
n=5 Participants
12 Participants
n=7 Participants
25 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline, Weeks 1 through 4 of treatment

Population: All participants who were randomized to study treatment and had at least 1 evaluable SBM post-dose measurement during the Double-blind Treatment Period. Last-observation-carried-forward (LOCF) was used to impute missing postbaseline values.

An SBM was defined as a bowel movement (BM) with no laxative use in the previous 24 hours. Each weekly SBM average was calculated as follows: (7 × number of SBMs) / (number of days with nonmissing data). The overall SBM rate for the 4-week double-blind treatment period was calculated as follows: (the average of the first week + the average of the second week + the average of the third week + the average of the fourth week) / 4.

Outcome measures

Outcome measures
Measure
Placebo
n=41 Participants
Each participant received 1 placebo capsule orally QD during the Run-in Placebo Period (1 week), the Double-blind Treatment Period (4 weeks), and the Run-out Placebo Period (1 week).
ADL5945 0.25 mg
n=40 Participants
During the Run-in Placebo Period, each participant received 1 placebo capsule orally QD for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.25-mg ADL5945 capsule orally QD for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally QD for 1 week.
Change From Baseline in the Weekly Average of Spontaneous Bowel Movements (SBMs) During Treatment
1.40 Number of SBMs/week
Standard Error 0.26
2.58 Number of SBMs/week
Standard Error 0.34

Adverse Events

Placebo

Serious events: 0 serious events
Other events: 11 other events
Deaths: 0 deaths

ADL5945 0.25 mg

Serious events: 1 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=41 participants at risk
Each participant received 1 placebo capsule orally every day (QD) during the Run-in Placebo Period (1 week), the Double-blind Treatment Period (4 weeks), and the Run-out Placebo Period (1 week).
ADL5945 0.25 mg
n=40 participants at risk
During the Run-in Placebo Period, each participant received 1 placebo capsule orally QD for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.25-milligrams (mg) ADL5945 capsule orally QD for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally QD for 1 week.
Cardiac disorders
Cardiac Arrest
0.00%
0/41
2.5%
1/40 • Number of events 1

Other adverse events

Other adverse events
Measure
Placebo
n=41 participants at risk
Each participant received 1 placebo capsule orally every day (QD) during the Run-in Placebo Period (1 week), the Double-blind Treatment Period (4 weeks), and the Run-out Placebo Period (1 week).
ADL5945 0.25 mg
n=40 participants at risk
During the Run-in Placebo Period, each participant received 1 placebo capsule orally QD for 1 week. Then during the Double-blind Treatment Period, each participant received one 0.25-milligrams (mg) ADL5945 capsule orally QD for 4 weeks. Then during the Run-out Placebo Period, each participant received 1 placebo capsule orally QD for 1 week.
Gastrointestinal disorders
Abdominal Pain
2.4%
1/41 • Number of events 1
5.0%
2/40 • Number of events 2
Gastrointestinal disorders
Abdominal Pain Upper
7.3%
3/41 • Number of events 3
5.0%
2/40 • Number of events 2
Respiratory, thoracic and mediastinal disorders
Bronchitis
2.4%
1/41 • Number of events 1
5.0%
2/40 • Number of events 2
Gastrointestinal disorders
Diarrhea
0.00%
0/41
5.0%
2/40 • Number of events 2
Nervous system disorders
Headache
4.9%
2/41 • Number of events 2
0.00%
0/40
Gastrointestinal disorders
Nausea
4.9%
2/41 • Number of events 2
0.00%
0/40
Respiratory, thoracic and mediastinal disorders
Upper respiratory tract infection
2.4%
1/41 • Number of events 1
2.5%
1/40 • Number of events 1
Gastrointestinal disorders
Vomiting
2.4%
1/41 • Number of events 1
2.5%
1/40 • Number of events 1

Additional Information

Vice President, Clinical Research

Cubist Pharmaceuticals

Phone: (781) 860-8660

Results disclosure agreements

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

Restriction type: OTHER