An Effectiveness and Safety Study of Two Doses of Acetaminophen Extended Release Caplets in the Treatment of Osteoarthritis of the Hip or Knee
A Randomized, Double-Blind, Placebo-Controlled Study Evaluating Acetaminophen Extended Release (1950 mg/Day or 3900 mg/Day) in the Treatment of Osteoarthritis of the Hip or Knee
1 other identifier
interventional
483
0 countries
N/A
Brief Summary
The purpose of this study is to determine the safety and effectiveness of 650 mg and 1300 mg acetaminophen extended release given three times a day for the relief of signs and symptoms of osteoarthritis of the hip or knee for a period of 12 weeks.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Apr 2002
Shorter than P25 for phase_3
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2002
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2003
CompletedFirst Submitted
Initial submission to the registry
October 14, 2005
CompletedFirst Posted
Study publicly available on registry
October 18, 2005
CompletedJune 29, 2011
June 1, 2011
October 14, 2005
June 28, 2011
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Average change from baseline to the final on-therapy visit for - WOMAC pain subscale score; WOMAC physical function subscale score; and subject's average global assessment of response to therapy through the final on-therapy visit
Secondary Outcomes (1)
Average change from baseline to final on-therapy visit for WOMAC stiffness subscale score; average change from baseline to final on-therapy visit for total WOMAC Index; average number of propoxyphene HCl rescue medication capsules per day while in study
Interventions
Eligibility Criteria
You may qualify if:
- Symptomats of osteoarthritis of the hip or knee for a minimum of six months
- History of hip or knee pain due to osteoarthritis requiring the use of NSAIDs, acetaminophen, or another analgesic agent on a regular basis (\>= three days per week) for at least three months before the screening visit
- History of positive therapeutic benefit with acetaminophen use for osteoarthritis pain
- History of osteoarthritis pain (moderate, moderately severe, or severe) of the hip or knee when not taking osteoarthritis analgesic medication
- Must have a pain level of moderate or moderately severe for 24 hours over the previous 24 hours prior to the baseline visit, and at baseline, demonstrate a 20% or greater increase in the pain subscale score, relative to the score at screening
You may not qualify if:
- History of surgery, including arthroscopy, or major trauma to the study joint in the previous six months before the screening visit
- Grade 1 or grade 4 severity of the study joint based on the Kellgren and Lawrence radiographic criteria
- Maximum osteoarthritis pain intensity of none, mild or severe experienced over the previous 24 hours of the baseline visit
- Signs of clinically important active inflammation of the study knee joint including redness, warmth and/or a large, bulging effusion with the loss of normal contour at the screening and/or baseline visits
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (1)
Kuffner EK, Temple AR, Cooper KM, Baggish JS, Parenti DL. Retrospective analysis of transient elevations in alanine aminotransferase during long-term treatment with acetaminophen in osteoarthritis clinical trials. Curr Med Res Opin. 2006 Nov;22(11):2137-48. doi: 10.1185/030079906x148346.
PMID: 17076974DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
McNeil Consumer & Specialty Pharmaceuticals, a Division of Mc Neil-PPC, Inc. Clinical Trial
McNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc.
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
October 14, 2005
First Posted
October 18, 2005
Study Start
April 1, 2002
Study Completion
March 1, 2003
Last Updated
June 29, 2011
Record last verified: 2011-06