Chronic Pain Clinical Trial
Official title:
4-Week Randomized Multicenter DB, Placebo- and Active-controlled, Parallel-group, Forced-titration Phase 2B Study of Efficacy and Safety With CG5503 Prolonged Release (PR) to 233 mg BID and Oxycodone PR to 20 mg BID vs Placebo in Subjects With Moderate to Severe Chronic Pain of Knee Osteoarthritis
The purpose of this study was to examine a low and high dose of tapentadol extended release tablet taken orally twice a day to reduce pain in subjects suffering from chronic moderate to severe pain due to osteoarthritis of the knee during a 4-week period. Subjects steadily increased their dose up to the low (100 mg) or high (200 mg) dose. Pain relief was compared to subjects taking placebo tablets or oxycodone extended release tablet, 20 mg. The serum concentrations and safety of tapentadol and oxycodone were also examined.
Status | Completed |
Enrollment | 670 |
Est. completion date | August 2005 |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 40 Years and older |
Eligibility |
Inclusion Criteria: - Subjects with a clinical diagnosis of osteoarthritis of the knee based symptoms and/or radiographic criteria present for at least 3 months - Moderate to severe chronic pain due to knee osteoarithritis Exclusion Criteria: - Previously opioid treated subject who had a history of withdrawal after cessation of the opioid - History of seizure disorder, psychiatric disease and history of head trauma requiring evaluation by hospital based staff, or unconsciousness of unknown origin. Subjects who, in the investigator's judgment, have well-controlled depression or anxiety disorder may participate - Subjects with history of uncontrolled hypertension (systolic blood pressure > 160 mmHg or diastolic blood pressure > 95 mmHg) - Intake of tricyclic antidepressants, serotonin norepinephrine reuptake inhibitors, barbiturates, neuroleptics, monoamine oxidase inhibitors, and antiparkinsonian drugs within the 30 days prior to the screening visit |
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Johnson & Johnson Pharmaceutical Research & Development, L.L.C. | Grünenthal GmbH |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Average pain intensity over the preceding 24 hours evaluated at the last timepoint or 29 days using a visual scale. | |||
Secondary | Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index at the last timepoint or 29 days |
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