| Inclusion Criteria: | Subject is male or female, 18 years or older at the time of the Screening visit.
The opioid therapy is dosed chronically for at least one month prior to the Screening visit at a minimum daily dose of at least 30 mg. oral morphine equivalents.
The opioid therapy is dosed stably (+40% total daily dose) for at least one week prior to the Screening visit and without any dose reductions.
Subject meets the protocol-definition of opioid-induced bowel dysfunction as follows: Since starting opioid therapy, a history based on subject recall of decreased BM frequency and the occurrence of at least one of the following subjective BM symptoms - incomplete evacuation, hard stools, straining).
Compliance with the guidance for maintenance and rescue laxative use (See Sections 7,11,13, and 7.14).
Subject understands the procedures, agrees to participate in the study, and had signed and dated the informed consent form prior to the initiation of any study related activities, including discontinuation of pre-study laxative regimen or other prohibited medications.
Subject is female and is currently either of (a) non-childbearing potential or (b) childbearing potential, has a negative serum B-hCG pregnancy test at the Screening visit, and agrees to use acceptable contraception throughout the study until the clinic follow-up 14 days after the last dose of investigational produce. See protocol for additional information regarding this criteria.
Opioid therapy admin orally, transdermally, intravenously, or subcutaneously.
Note 1. The patient-controlled analgesia (PCA) pump route of chronic admin is permitted only if the basal rate of chronically dosed opioid meets all requirements set forth in elig crit, if opioid admin on demand for breakthrough pain is not suggestive of unstable dosing, and if the total daily dose of opioid admin both chronically and on demand can be reported in the CRF
Note 2. The intrathecal pump (intraspinal) route of chronic opioid admin is permitted only if the subject is taking another chronically dosed opioid that meets all of the requirements set forth in the elig crit and if the total daily dose of the intrathecally admin opioid can be reported in the CRF
Subject has a minimum life expectancy of greater than or equal to 3 months at the time of the Screening Visit.
To be randomized on Day 1, a confirmed 1-week baseline history based on diary data of the 3 following criteria: (1) Decreased BM frequency: less than 3 spontaneous complete BMs/week and more than 0 BMs/week. (2) Occurrence of at least one of the subjective BM symptom(s): (a) sensation of incomplete evacuation for 25% of BMs, (b) lumpy hard stools or small pellets for 25% or more of BMs, and/or (c) straining for 25% or more of BMs.
Subject is capable of completing the Daily Diary, is able and willing to comply with daily and weekly data collection via the Daily Diary (as confirmed by at least 80% compliance during the Baseline Period) and is capable of completing the paper questionnaires.
Pt who has cancer or is in remission from a recent cancer, and is taking opioid therapy for continued intractable pain. Pain examples include, but are not limited to, (1) tumor-related pain, even if the tumor is no longer present but has caused lasting damage and (2) pain related to cancer therapy such as post surgical pain, pain related to radiation treatment, or pain related to chemotherapy. |