A Study to Evaluate Long-Term Safety of Multiple Doses of Tapentadol (CG5503) Prolonged-Release (PR) and Oxycodone Controlled-Release (CR) in Patients With Chronic Pain

A One-Year, Randomized, Open-Label, Parallel-Arm, Phase 3 Long-Term Safety Trial, With Controlled Adjustment of Dose, of Multiple Doses of CG5503 PR and Oxycodone CR in Subjects With Chronic Pain

The purpose of this study is to evaluate the safety profile of tapentadol (CG5503) PR at doses of 100 mg - 250 mg administered twice daily over a maximum one year period to patients with at least a 3-month history of low back pain, or pain caused by knee or hip osteoarthritis.

Study Overview

Detailed Description

Tapentadol (CG5503) is a centrally active pain-relieving drug being investigated for the treatment of acute and chronic pain. This study is a randomized (patients are assigned different treatments based on chance in a ratio of 4 patients on tapentadol (CG5503) PR to every 1 patient on oxycodone CR), open-label (both the Investigator and the patient know what medication is allocated), active-controlled, parallel-group, multicenter study. It is designed to investigate the long-term safety (side effects during up to one year of administration) and effectiveness (level of pain control) of tapentadol (CG5503) PR compared to oxycodone CR (an opioid commonly used for relief of moderate to severe pain) taken orally. The study consisted of a screening period (up to 14 days), a washout period (3 to 7 days), and an active treatment phase with titration and maintenance (total duration of 52 weeks). The doses of both of these medications will be adjusted to give the best therapeutic benefit for the patient. A total of 1123 patients will be screened. Safety evaluations include monitoring of adverse events, physical examinations, and clinical laboratory tests. Assessments of pain relief include the pain intensity numerical rating scale, and patient global impression of change scale (PGIC). Venous blood samples will be collected for the determination of serum concentrations of tapentadol (CG5503) and oxycodone. Tapentadol (CG5503) PR is also referred to as Tapentadol (CG5503) Extended Release (ER). Starting oral dose is randomly assigned to tapentadol (CG5503) PR 50 mg or oxycodone CR 10 mg twice daily (BID) x 3 days; then increase to tapentadol (CG5503)100 mg BID, oxycodone CR 20 mg BID x 4 days; during the maintenance phase upward titration may occur at a minimum of 3 day intervals in increments of tapentadol (CG5503) PR 50 mg BID or oxycodone CR 10 mg BID. The maximum doses are tapentadol (CG5503) PR 250 mg BID or oxycodone CR 50 mg BID.

Study Type

Interventional

Enrollment (Actual)

1123

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Alberta
      • Edmonton, Alberta, Canada
    • British Columbia
      • Coquitlam, British Columbia, Canada
    • Nova Scotia
      • Halifax, Nova Scotia, Canada
    • Ontario
      • Corunna, Ontario, Canada
      • Mississauga, Ontario, Canada
      • Sarnia, Ontario, Canada
      • Sudbury, Ontario, Canada
      • Toronto, Ontario, Canada
      • Vancouver, Ontario, Canada
    • Quebec
      • Pointe-Claire, Quebec, Canada
      • Trois-Rivieres, Quebec, Canada
    • Saskatchewan
      • Saskatoon, Saskatchewan, Canada
    • Arizona
      • Mesa, Arizona, United States
      • Tucson, Arizona, United States
    • California
      • Anaheim, California, United States
      • Cudahy, California, United States
      • Encinitas, California, United States
      • San Diego, California, United States
      • Westlake Village, California, United States
    • Connecticut
      • Trumbull, Connecticut, United States
    • Florida
      • Chiefland, Florida, United States
      • Clearwater, Florida, United States
      • Jacksonville, Florida, United States
      • Oldsmar, Florida, United States
    • Georgia
      • Atlanta, Georgia, United States
      • Cumming, Georgia, United States
      • Decatur, Georgia, United States
      • Perry, Georgia, United States
      • Suwanee, Georgia, United States
      • Woodstock, Georgia, United States
    • Indiana
      • Indianapolis, Indiana, United States
    • Kansas
      • Prairie Village, Kansas, United States
      • Topeka, Kansas, United States
    • Kentucky
      • Paducah, Kentucky, United States
    • Louisiana
      • Baton Rouge, Louisiana, United States
    • Maryland
      • Rockville, Maryland, United States
    • Massachusetts
      • Wellesley Hills, Massachusetts, United States
    • Michigan
      • Kalamazoo, Michigan, United States
    • Nevada
      • Las Vegas, Nevada, United States
    • New York
      • Mamaroneck, New York, United States
      • Williamsville, New York, United States
    • North Carolina
      • Raleigh, North Carolina, United States
      • Winston Salem, North Carolina, United States
    • Ohio
      • Kettering, Ohio, United States
    • Oregon
      • Medford, Oregon, United States
    • Pennsylvania
      • Duncansville, Pennsylvania, United States
      • Philadelphia, Pennsylvania, United States
      • Pittsburgh, Pennsylvania, United States
    • South Carolina
      • Greenville, South Carolina, United States
    • Texas
      • Houston, Texas, United States
      • San Antonio, Texas, United States
    • Virginia
      • Roanoke, Virginia, United States

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Clinical diagnosis of knee or hip osteoarthritis with history of pain at the reference joint for at least 3 months or clinical diagnosis of low back pain of benign origin for at least 3 months
  • Must be dissatisfied with their current analgesic therapy (e.g. Non-steroidal anti-inflammatory drugs NSAIDS, COX-2 inhibitors, opioids, paracetamol/acetaminophen
  • Have a pain intensity >4 on Numerical Rating Scale

Exclusion Criteria:

  • Life-long history of seizure disorder or epilepsy
  • Any of the following within one year: mild/moderate traumatic brain injury, stroke, transient ischemic attack, and brain neoplasm
  • Severe traumatic brain injury within 15 years (consisting of more than one of the following: brain contusion (injuries resulting in hemorrhage), intracranial hematoma, unconsciousness or post traumatic amnesia lasting for more than 24 hours) or residual sequelae suggesting transient changes in consciousness
  • History of malignancy within past 2 years, with exception of a successfully treated basal cell carcinoma
  • Presence of significant pain associated with conditions other than osteoarthritis or low back pain that could confound the assessment or self-evaluation of pain

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Tapentadol (CG5503)
Tapentadol (CG5503) extended release (ER) 100 to 250 mg twice daily (BID) for up to one year.
Tapentadol (CG5503) ER 50 mg oral tablet BID administered for first 3 days, 100 mg oral tablet BID administered for next 4 days, 100 to 250 mg oral tablet BID administered for the next 51 weeks.
Other Names:
  • CG5503
Active Comparator: Oxycodone
Oxycodone controlled release (CR) 20 to 50 mg twice daily (BID) for up to one year.
Oxycodone CR 10 mg oral tablet BID administered for first 3 days, 20 mg oral tablet BID administered for next 4 days, 20 to 50 mg oral tablet BID administered for the next 51 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Treatment-emergent Adverse Events (TEAE)
Time Frame: 52 weeks
The number of participants who reported a TEAE during the treatment period. TEAE was defined as any adverse event that started or worsened on or after the start of the study medication and up to 3 days after the discontinuation of the study medication.
52 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change From Baseline in Average Pain Intensity Scores at Week 52 Using the Numerical Rating Scale (NRS)
Time Frame: Baseline, Week 52
The Participants indicated the average level of pain experienced, at each study visit, over the previous 24 hours on an 11-point Numerical Rating Scale (NRS) where a score of 0 indicated "no pain" and a score of 10 indicated "pain as bad as you can imagine". Baseline was the average pain intensity scores measured prior to randomization (At Week 1). At Week 52 again the average pain intensity scores were collected and the change in scores at Week 52 from the baseline scores was considered as the change from baseline in average pain intensity scores at Week 52.
Baseline, Week 52

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2006

Primary Completion (Actual)

July 1, 2008

Study Completion (Actual)

July 1, 2008

Study Registration Dates

First Submitted

August 4, 2006

First Submitted That Met QC Criteria

August 4, 2006

First Posted (Estimate)

August 8, 2006

Study Record Updates

Last Update Posted (Estimate)

April 29, 2014

Last Update Submitted That Met QC Criteria

April 10, 2014

Last Verified

April 1, 2014

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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