Conditions: Pain Cancer
Keywords: Pain Cancer Tapentadol
Allocation: NON_RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 78
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the efficacy, safety and pharmacokinetics (how the drug is absorbed in the body, distributed within the body, and how it is removed from the body over time; explores what the body does to the drug) of tapentadol prolonged release (JNS024PR, PR) in participants with moderate to severe cancer (abnormal tissue that grows and spreads in the body until it kills) pain.

Detailed description:
This is a Phase 2 open-label (all people know the identity of the intervention), multi-centric (conducted in more than one center), non-comparative, optional dose-titration study of tapentadol PR in Japanese participants with cancer pain. This study will consist of Screening period (3 to 7 days), Dose adjustment period (3 to 14 days), Fixed dose period (5 days) and Follow-up period (7 days). Tapentadol PR will be administered orally (taken by mouth; to be swallowed) twice daily before meal. For participants previously using opioids, the initial dose of tapentadol PR will be selected depending on the daily dose of opioid at the completion of Screening period. For opioid-naive (moderate to severe cancer pain that is not controlled adequately with non-opioid medications) participants, the initial dose of tapentadol PR will be 25 milligram (mg) twice daily. Participants will receive the same dose of tapentadol PR for the first 2 days of the dose adjustment period and from Day 3, the dose can be titrated as per the Investigator's discretion up to Day 14. After that participants will receive fixed dose regimen for 5 days at the same dose as that used at the end of the dose adjustment period. Efficacy will primarily be evaluated by sustained pain control for the 5 day fixed dose phase. Participants' safety will be monitored throughout the study.

Arms:
arm 1: Opioid-naive participants are defined as those who had moderate to severe cancer pain that is not controlled sufficiently with non-opioid medications. Treatment period comprises of Titration and Maintenance period. Titration period (3-14 days) is duration between start of treatment to day before initial dose in the maintenance period. Treatment will be initiated with tapentadol prolonged release (JNS024PR, PR) 25 milligram (mg) oral tablet twice daily. Dose will be increased or decreased as per Investigator's discretion up to Day 14. Maximum dose limit will be 500 mg per day. Participants will then be assigned to the treatment in the maintenance period (15-19 days). The maintenance period is duration between the first dose and the final assessment in the maintenance period. Participants will receive tapentadol PR oral tablet twice daily for 5 days at the same dose used on last day of titration period. arm 2: Opioid-switching participants are defined as those who had moderate to severe cancer pain that is controlled sufficiently with opioid therapy. Treatment period comprises of Titration and Maintenance period. Titration period (3-14 days) is duration between start of treatment to day before initial dose in maintenance period. Initial dose of tapentadol PR is selected according to daily dose of opioid (morphine sustained release \[SR\] preparation, oxycodone hydrochloride \[HCl\] SR tablet or fentanyl patch). Equivalent dose of tapentadol PR oral tablet twice daily is given depending on daily dose of opioid at completion of Screening period. Maximum dose limit is 500 mg per day. Participants will then be assigned to treatment in maintenance period (15-19 days). Maintenance period is defined as duration between first dose and final assessment in maintenance period. Participants will receive tapentadol PR oral tablet twice daily for 5 days at same dose used on last day of titration period.

Interventions: intervention 1: Tapentadol PR
Intervention descriptions: intervention 1: Tapentadol PR tablets will be administered orally twice daily initiated at dose of 25 mg. Dose will be adjusted as per Investigator's discretion. Maximum dose limit is 500 mg per day. Total duration of treatment is 19 days.

Protocol document: