A Study to Evaluate 90-Day Safety of Tapentadol(CG5503) Immediate Release (IR) or Oxycodone Immediate Release in Patients With Chronic Pain

June 2, 2011 updated by: Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

A Randomized, Double-Blind, Active-Control, Parallel-Group, 90-Day Safety Study of CG5503 Immediate Release (IR) or Oxycodone IR in Subjects With Chronic Pain From Low Back Pain or Osteoarthritis of the Hip or Knee

The purpose of this study is to evaluate the safety of CG5503 base Immediate Release(IR) 50 mg or 100 mg taken every 4 to 6 hours as needed over the long-term exposure of 90 days in patients who have chronic pain.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

CG5503 is a centrally active pain-relieving drug being investigated for the treatment of acute and chronic pain. This study is designed to assess the safety of CG5503 Immediate Release (IR) in men and women who are 18 years of age or older and who have had chronic (for at least 3 months) low-back pain or chronic pain from osteoarthritis of the hip or knee, and who require daily analgesic medication. In this double blind study (neither patients nor investigators will know what treatment is given), patients will be randomly (patients are assigned different treatments based on chance) assigned to receive either CG5503 base IR or oxycodone IR to begin a 90 day treatment during which each patient will return to the medical facility every 2 weeks. For the CG5503 IR group, patients will take 50 or 100 mg orally every 4 to 6 hours as needed to a maximum dose of 600 mg per day. Oxycodone IR patients will take 10 or 15 mg orally every 4 to 6 hours as needed to a maximum dose of 90 mg per day. Patients may continue taking their regular, stable, non-opioid medication throughout the study. The effectiveness of study treatment (CG5503 base IR or oxycodone) will be assessed with 11-Point Numerical Rating Scale and Patient Global Impression of Change. Using these scales, patients will indicate their pain intensity level and overall status of their well-being. Opioid withdrawal symptoms of CG5503 IR dose of 50 or 100 mg will be assessed with clinical opioid withdrawal scale [Subjective Opiate Withdrawal Scale (SOWS) and Clinical Opiate Withdrawal Scale (COWS)] at the end of treatment. Using these scales, patients will indicate the physical components of drug withdrawal and the severity of symptoms associated with rapid withdrawal. Safety will be assessed using physical examination, monitoring of adverse events, clinical and laboratory measures, and 12 lead electrocardiogram (ECG) results. Constipation, vomiting, and sleep assessments will be performed. No formal hypothesis testing will be done in this study. For the CG5503 IR group, patients will take a flexible dose of 50 or 100 mg orally every 4 to 6 hours as needed to a maximum dose of 600 mg per day for 90 days. Oxycodone IR patients will take a flexible dose of 10 or 15 mg orally every 4 to 6 hours as needed to a maximum dose of 90 mg per day for 90 days.

Study Type

Interventional

Enrollment (Actual)

877

Phase

  • Phase 3

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:

  • A clinical diagnosis of one of the following: low-back pain of non-malignant origin for at least 3 months, osteoarthritis of the knee or hip for at least 3 months
  • require daily doses of analgesia medication for chronic pain that is consistent with or makes them candidates for treatment at Step 2 or higher of the WHO Pain Relief Ladder
  • post-washout baseline pain intensity score >4 on an 11-point numerical rating scale

Exclusion Criteria:

  • History of seizure disorder or epilepsy
  • uncontrolled hypertension
  • currently treated with monoamine oxidase inhibitors
  • systemic steroid therapy, excluding inhalers or topical steroids, within 3 months before screening
  • history of malignancy within the past 2 years, with the exception of basal cell carcinoma

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: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
The primary outcomes include incidence of adverse events, changes in laboratory measures, results of physical exams, and results of 12-Lead ECG.

Secondary Outcome Measures

Outcome Measure
The secondary outcomes, among others, include COWS and SOWS assessments; patient assessment of constipation symptoms; vomiting and sleep assessments; pain intensity assessment; patient global impression of change.

Collaborators and Investigators

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

Sponsor

Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

Collaborators

Grünenthal GmbH

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.

General Publications

Helpful Links

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

July 1, 2006

Primary Completion (Actual)

June 1, 2007

Study Completion (Actual)

July 1, 2007

Study Registration Dates

First Submitted

August 11, 2006

First Submitted That Met QC Criteria

August 11, 2006

First Posted (Estimate)

August 15, 2006

Study Record Updates

Last Update Posted (Estimate)

June 9, 2011

Last Update Submitted That Met QC Criteria

June 2, 2011

Last Verified

April 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CR011212

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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