Study to Evaluate Effectiveness and Tolerability of OROS Hydromorphone for Cancer Pain Treatment in Korean Patients

A Prospective, Open-Label, Multicenter, Single-Arm, Interventional Study to Evaluate the Efficacy and Tolerability of Once-Daily Oros Hydromorphone for Cancer Pain Treatment in Korean Cancer Patients.

The purpose of this study is to evaluate the effectiveness and tolerability of Once-Daily OROS ("Osmotic Release Oral System" [a controlled release oral medication delivery system in the form of a tablet]) hydromorphone for cancer pain treatment in Korean cancer patients.

This is a prospective (expected to happen), open-label (type of clinical study in which both the researchers and participants know which treatment is being administered), multicenter (conducted at multiple centers), single-arm (only one group), study to evaluate the effectiveness and tolerability (capable to tolerate) of Once-Daily OROS hydromorphone for cancer pain treatment. This is a 14-week study consisting of 2-week efficacy evaluation period (1st evaluation on Day 1 and 2nd evaluation on Days 15±2) and a 12-week extension phase. 99 patients will receive Once-Daily OROS hydromorphone for 2 weeks .After 2 weeks, if a patient has continuous cancer pain and the investigator deems it necessary to administer the same medicine as the study medication then the patient may participate voluntarily in the 12 weeks extension phase. At the extension phase, other continuous-type strong opioid analgesics (painkiller) may be administered at the same time for the adjustment of cancer pain based on the discretion of the investigator.

Inclusion Criteria:

• Cancer pain and require opioid analgesics
• Average pain intensity measured at the baseline (patient's medical status before any treatment or research is done) for the past 24 hours over Numeric Rating Scale (NRS) is 4
• Never taken continuous-type strong opioid analgesics
• Must be post-menopausal or if pre-menopausal, must use an acceptable method of birth control

Exclusion Criteria:

• Acute digestion related disease, such as dysphagia (difficulty in swallowing), vomiting, no enterokinesia (movements of intestine), intestinal obstruction, acute intestinal stricture (narrowing of a passageway)
• Expected to undergo radioactive treatment (radiation therapy) between Day 1 and Day 15 of study
• Being administered with monoamine oxidase inhibitor (eg, moclobemide, selegiline, toloxatone, etc) or within 2 weeks of administration thereof