Conditions: Cancer Pain
Keywords: Pain Hydromorphone hydrochloride OROS Morphine
Allocation: NON_RANDOMIZED | Intervention model: PARALLEL
Enrollment: 2
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the effectiveness and safety of Osmotic Release Oral System (OROS) hydromorohone Hydrochloride (HCl) compared with morphine sustain release (SR) in participants with chronic (lasting a long time) malignant (cancerous) cancer pain.

Detailed description:
This is an open-label (all people know the identity of the intervention), multi-center (when more than 1 hospital or medical school team work on a medical research study), active-controlled, randomized (the study drug is assigned by chance) study to evaluate safety and efficacy of OROS extended-release (ER) hydromorhone HCl compared to twice daily morphine SR, in Taiwan participants with cancer pain. The study consists of 3 phases: Screening phase (14 days before administration of study drug), Dose titration phase (3 to 14 days) and Dose maintenance phase (14 days). This study will include 8 visits (Visit 1 \[Day 1\], Visit 2 \[Day 1-13 telephonic\], Visit 3 \[Day 14\], Visit 4 \[Day 15 to Day 21 telephonic\], Visit 5 \[Day 22\], Visit 6 \[Day 23 to 27 telephonic\] and Visit 7 \[Day 28\]). In dose titration phase, participants will be randomly assigned to 1 of the 2 treatments, OROS hydromorphone or morphine SR and dose of study medication will be adjusted every 48 hours at Investigator's discretion according to participant's analgesic (drug used to control pain) requirements. Morphine HCl will be used as rescue medication (maintained at 3 doses per day or less) for breakthrough pain. Participants primarily will be evaluated for equivalence of efficacy using the "worst pain" item of the brief pain inventory (BPI). Participants' safety will be monitored throughout the study duration.

Arms:
arm 1: Participants will receive hydromorphone HCl OROS 8 milligram (mg) every 24 hours, for 3 to 14 days of titration phase. Hydromorphone HCl OROS will be continued as per Investigator's discretion for next 14 days of maintenance phase. arm 2: Participants will receive morphine SR 8 mg every 24 hours, for 3 to14 days of titration phase. Morphine SR will be continued as per Investigator's discretion for next 14 days of maintenance phase.

Interventions: intervention 1: Hydromprphone Hydrochloride (HCl) OROS intervention 2: Morphine Sustain Release (SR)
Intervention descriptions: intervention 1: Participants will receive hydromorphone HCl OROS 8 milligram (mg) every 24 hours, for 3 to 14 days of titration phase. Hydromorphone HCl OROS will be continued as per Investigator's discretion for next 14 days of maintenance phase. intervention 2: Participants will receive morphine SR 8 mg every24 hours, for 3 to14 days of titration phase. Morphine SR will be continued as per Investigator's discretion for next 14 days of maintenance phase.

Protocol document: