A Study of the Tolerability of Titrated Dose Tramadol/Acetaminophen Combination Tablet in Korean Patients With Osteoarthritis

February 4, 2010 updated by: Janssen Korea, Ltd., Korea

Tolerability Improvement of Tramadol/Acetaminophen (Ultracet) by Titration in Korean OA Patients:Multicenter, Randomized, Double-blind Study

The purpose of this study is to compare the number of osteoarthritis patients receiving titrated or increasing doses of tramadol hydrochloride/acetaminophen combination tablet (titration group) who discontinue treatment due to adverse events to the number of patients receiving a non-titrated dose of tramadol/hydrochloride/acetaminophen combination tablet who discontinue treatment due to adverse events.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This is a randomized (study drug assigned by chance), multicenter, double-blind (neither physician nor patient knows the name of the assigned drug), add-on study (NSAIDs or COX-2 medications maintained at pre-study dose.) to investigate the tolerability of titrated doses of tramadol hydrochloride/acetaminophen combination tablet in osteoarthritis patients taking NSAIDS or COX-2 inhibitors (both are drugs used to treat inflammation and pain) compared to non-titrated doses of tramadol hydrochloride/acetaminophen combination tablet. The patients will be randomized into 2 treatment groups. First group (the titration group) receives 1 tablet of tramadol hydrochloride/acetaminophen in the morning, 1 tablet of placebo in the afternoon and evening for 3 days, then 1 tablet of tramadol hydrochloride/acetaminophen in the morning, 1 tablet of placebo in the afternoon and 1 tablet of tramadol hydrochloride/acetaminophen in the evening for 4 days, and the 1 tablet of tramadol hydrochloride/acetaminophen three times daily for next 7 days. The second group (non-titration group) will receive 1 tablet of tramadol hydrochloride/acetaminophen three times daily without titration for 14 days. The study hypothesis is the first group's discontinuation rate due to adverse events is lower than that of second group. Safety assessments include adverse event, vital sign and clinical lab monitoring. First group will receive 1 tablet of tramadol hydrochloride/acetaminophen and 2 tablets of placebo for 3 days, 2 tablets of tramadol hydrochloride/acetaminophen and 1 tablet of placebo for 4 days, and 3 tablets of tramadol hydrochloride/acetaminophen for 7 days. Second group will receive 3 tablets of tramadol hydrochloride/acetaminophen for 14 days.

Study Type

Interventional

Enrollment (Actual)

250

Phase

  • Phase 4

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

35 years to 75 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Must have osteoarthritis of the knee for at least one year based on clinical and radiological criteria
  • Must have been on a stable daily dose of a NSAID for at least two weeks prior to randomization
  • Must have a pain intensity Numeric Rating Scale (NRS) score 4 or more as a average intensity for 48 hours. (On a Numeric Rating Scale of 0 to 10, with 0 being no pain at all and 10 being the worst pain imaginable)

Exclusion Criteria:

  • Have taken tramadol HCL within 14 days prior to randomization
  • Have taken acetaminophen within 7 days prior to randomization
  • Have received other pain medication (including topical medication and/or anesthetics), sedative hypnotics, or muscle relaxants within a period of less than five half-lives of the given medication prior to randomization

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
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: 001
tramadol hydrochloride / acetaminophen and placebo 1 tablet of tramadol/acetaminophen in the morning 1 tablet of placebo in the afternoon and evening for 3 days then 1 tablet of tramadol/acetaminophen in the morning evening and 1 tablet of placebo in the afternoon for 4 days then 1 tablet of tramadol/acetaminophen 3 times daily for next 7 days
Drug: tramadol hydrochloride / acetaminophen and placebo
1 tablet of tramadol/acetaminophen in the morning, 1 tablet of placebo in the afternoon and evening for 3 days, then 1 tablet of tramadol/acetaminophen in the morning, evening and 1 tablet of placebo in the afternoon for 4 days, then 1 tablet of tramadol/acetaminophen 3 times daily for next 7 days
ACTIVE_COMPARATOR: 002
tramadol hydrochloride /acetaminophen 1 tablet of tramadol hydrochloride/acetaminophen three times daily without titration for 14 days.
Drug: tramadol hydrochloride /acetaminophen
1 tablet of tramadol hydrochloride/acetaminophen three times daily without titration for 14 days.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Study Discontinuation rate due to adverse event
Time Frame: Throughout the study from start of study drug until final visit, Day 14
Throughout the study from start of study drug until final visit, Day 14

Secondary Outcome Measures

Outcome Measure
Time Frame
comparison of the pain intensity scores between the 2 treatment groups
Time Frame: Day 0, Day 14
Day 0, Day 14
comparison of the pain relief scores between the 2 treatment groups
Time Frame: Day 14
Day 14
comparison of the WOMAC (Western and Ontario Mcmaster) total scores between the 2 treatment groups.The WOMAC index is a 24-item questionnaire completed by the patient and focusing on pain, stiffness and function related to osteoarthritis of knee and hip
Time Frame: Day 0, Day 14
Day 0, Day 14
comparison of the overall assessment of patient between the 2 treatment groups
Time Frame: Day 14
Day 14
comparison of the overall assessment of investigator between the 2 treatment groups
Time Frame: Day 14
Day 14

Collaborators and Investigators

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

Sponsor

Janssen Korea, Ltd., Korea

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

August 1, 2005

Study Completion (ACTUAL)

May 1, 2006

Study Registration Dates

First Submitted

October 8, 2009

First Submitted That Met QC Criteria

February 4, 2010

First Posted (ESTIMATE)

February 5, 2010

Study Record Updates

Last Update Posted (ESTIMATE)

February 5, 2010

Last Update Submitted That Met QC Criteria

February 4, 2010

Last Verified

February 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CR004990

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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